ADD ALOT OF POLISHING AND UPDATES...

Reviewed-on: 2526-mobile-programming/Final-08-Evan-Jap-Bambang-WalkGuide-AI#6

.gitignore

@@ -46,3 +46,14 @@ walkguide-backend/demo/hs_err_pid*.log
 # Android SDK path (generated by Android Studio)
 walkguide-mobile/walkguide_app/android/local.properties
 
+# Local Python/YOLO export artifacts - do not commit
+walkguide-mobile/walkguide_app/.venv*/
+walkguide-mobile/walkguide_app/yolov8n.onnx
+walkguide-mobile/walkguide_app/yolov8n.pt
+walkguide-mobile/walkguide_app/yolov8n_saved_model/
+walkguide-mobile/walkguide_app/calibration_image_sample_data_*.npy
+walkguide-mobile/walkguide_app/devtools_options.yaml
+walkguide-mobile/walkguide_app/android/app/src/main/java/dev/flutter/plugins/
+walkguide-mobile/walkguide_app/android/app/src/main/java/io/flutter/plugins/
+new_file
+

walkguide-backend/demo/src/main/java/com/walkguide/controller/CallController.java

@@ -4,12 +4,9 @@ import com.walkguide.dto.ApiResponse;
 import com.walkguide.dto.request.CallNotifyRequest;
 import com.walkguide.dto.request.CallTokenRequest;
 import com.walkguide.dto.response.AgoraTokenResponse;
-import com.walkguide.entity.User;
-import com.walkguide.exception.ResourceNotFoundException;
-import com.walkguide.repository.UserRepository;
 import com.walkguide.security.SecurityHelper;
 import com.walkguide.service.AgoraTokenService;
-import com.walkguide.service.FcmService;
+import com.walkguide.service.CallNotificationService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.security.SecurityRequirement;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -17,23 +14,13 @@ import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.Map;
 
-/**
- * Controller untuk VoIP call via Agora RTC.
- *
- * FLOW:
- *   1. Caller → POST /shared/call/token   → dapat Agora token + channelName
- *   2. Caller join Agora channel (di Flutter)
- *   3. Caller → POST /shared/call/notify  → FCM "Incoming Call" dikirim ke receiver
- *   4. Receiver terima FCM → join channel yang sama
- *   5. Audio call tersambung via Agora
- *
- * Route: /api/v1/shared/call
- * Auth: Authenticated (Guardian ATAU User)
- */
 @RestController
 @RequestMapping("/api/v1/shared/call")
 @RequiredArgsConstructor
@@ -43,17 +30,10 @@ import java.util.Map;
 public class CallController {
 
     private final AgoraTokenService agoraTokenService;
-    private final FcmService fcmService;
+    private final CallNotificationService callNotificationService;
-    private final UserRepository userRepository;
 
-    /**
-     * Generate Agora RTC token untuk call session.
-     * Dipanggil oleh CALLER sebelum mulai call.
-     *
-     * POST /api/v1/shared/call/token
-     */
     @PostMapping("/token")
-    @Operation(summary = "Generate Agora token", description = "Caller minta token sebelum join Agora channel")
+    @Operation(summary = "Generate Agora token", description = "Caller requests a token before joining Agora")
     public ResponseEntity<ApiResponse<AgoraTokenResponse>> generateToken(
             @Valid @RequestBody CallTokenRequest req) {
 
@@ -66,64 +46,16 @@ public class CallController {
         return ResponseEntity.ok(ApiResponse.ok(response, "Token Agora berhasil digenerate"));
     }
 
-    /**
-     * Kirim FCM "Incoming Call" ke receiver.
-     * Dipanggil oleh CALLER setelah berhasil join Agora channel.
-     *
-     * POST /api/v1/shared/call/notify
-     */
     @PostMapping("/notify")
-    @Operation(summary = "Notify receiver of incoming call",
+    @Operation(summary = "Notify receiver of incoming call")
-               description = "Kirim FCM push notification ke receiver agar join Agora channel yang sama")
     public ResponseEntity<ApiResponse<Void>> notifyCall(
             @Valid @RequestBody CallNotifyRequest req) {
 
         Long callerId = SecurityHelper.getCurrentUserId();
-
+        String message = callNotificationService.notifyIncomingCall(callerId, req);
-        // Ambil info caller untuk notifikasi
+        return ResponseEntity.ok(ApiResponse.ok(null, message));
-        User caller = userRepository.findById(callerId)
-                .orElseThrow(() -> new ResourceNotFoundException("Caller not found"));
-
-        // Ambil FCM token receiver
-        User receiver = userRepository.findById(req.getReceiverId())
-                .orElseThrow(() -> new ResourceNotFoundException("Receiver not found"));
-
-        if (receiver.getFcmToken() == null || receiver.getFcmToken().isBlank()) {
-            log.warn("[CALL] Receiver {} tidak punya FCM token — call notify gagal", req.getReceiverId());
-            return ResponseEntity.ok(ApiResponse.ok(null,
-                    "Panggilan dikirim (receiver mungkin tidak menerima push notification)"));
     }
 
-        // Payload FCM untuk incoming call
-        Map<String, String> payload = Map.of(
-                "type",        "INCOMING_CALL",
-                "callerId",    String.valueOf(callerId),
-                "callerName",  caller.getDisplayName() != null ? caller.getDisplayName() : caller.getEmail(),
-                "channelName", req.getChannelName(),
-                "agoraToken",  req.getAgoraToken() != null ? req.getAgoraToken() : "",
-                "receiverUid", String.valueOf(req.getReceiverUid())
-        );
-
-        // High priority karena incoming call harus segera muncul
-        fcmService.sendHighPriority(
-                receiver.getFcmToken(),
-                "📞 Panggilan Masuk",
-                "Panggilan dari " + (caller.getDisplayName() != null ? caller.getDisplayName() : caller.getEmail()),
-                payload
-        );
-
-        log.info("[CALL] Incoming call notification sent | caller={} receiver={} channel={}",
-                callerId, req.getReceiverId(), req.getChannelName());
-
-        return ResponseEntity.ok(ApiResponse.ok(null, "Notifikasi panggilan berhasil dikirim"));
-    }
-
-    /**
-     * End call — notifikasi ke pihak lain bahwa call sudah berakhir.
-     * Opsional: Flutter bisa handle end call secara lokal juga.
-     *
-     * POST /api/v1/shared/call/end
-     */
     @PostMapping("/end")
     @Operation(summary = "Notify end of call")
     public ResponseEntity<ApiResponse<Void>> endCall(
@@ -131,19 +63,7 @@ public class CallController {
 
         Long callerId = SecurityHelper.getCurrentUserId();
         Long otherId = body.get("otherId");
-
+        callNotificationService.notifyCallEnded(callerId, otherId);
-        if (otherId != null) {
-            userRepository.findById(otherId).ifPresent(other -> {
-                if (other.getFcmToken() != null && !other.getFcmToken().isBlank()) {
-                    fcmService.sendToToken(
-                            other.getFcmToken(),
-                            "Panggilan Berakhir",
-                            "Panggilan telah berakhir",
-                            Map.of("type", "CALL_ENDED", "callerId", String.valueOf(callerId))
-                    );
-                }
-            });
-        }
 
         return ResponseEntity.ok(ApiResponse.ok(null, "Call ended"));
     }

walkguide-backend/demo/src/main/java/com/walkguide/controller/GuardianController.java

@@ -51,7 +51,7 @@ public class GuardianController {
         Long guardianId = SecurityHelper.getCurrentUserId();
         // Perlu ambil userId dulu — delegasikan ke service
         return ResponseEntity.ok(ApiResponse.ok(
-                locationService.getLocationHistory(guardianId,
+                locationService.getLocationHistoryForGuardian(guardianId,
                         PageRequest.of(page, size, Sort.by("createdAt").descending())),
                 "Riwayat lokasi"));
     }

walkguide-backend/demo/src/main/java/com/walkguide/controller/PairingController.java

@@ -2,9 +2,11 @@ package com.walkguide.controller;
 
 import com.walkguide.dto.ApiResponse;
 import com.walkguide.dto.request.*;
+import com.walkguide.dto.response.PairingCodeResponse;
 import com.walkguide.dto.response.PairingStatusResponse;
 import com.walkguide.security.SecurityHelper;
 import com.walkguide.service.PairingService;
+import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -16,12 +18,26 @@ public class PairingController {
 
     private final PairingService pairingService;
 
+    @GetMapping("/code")
+    public ResponseEntity<ApiResponse<PairingCodeResponse>> code() {
+        return ResponseEntity.ok(ApiResponse.ok(
+                pairingService.getOrCreatePairingCode(SecurityHelper.getCurrentUserId()),
+                "Pairing code aktif"));
+    }
+
+    @PostMapping("/code/regenerate")
+    public ResponseEntity<ApiResponse<PairingCodeResponse>> regenerateCode() {
+        return ResponseEntity.ok(ApiResponse.ok(
+                pairingService.regeneratePairingCode(SecurityHelper.getCurrentUserId()),
+                "Pairing code baru dibuat"));
+    }
+
     @PostMapping("/invite")
     public ResponseEntity<ApiResponse<PairingStatusResponse>> invite(
-            @RequestBody InviteUserRequest req) {
+            @Valid @RequestBody InviteUserRequest req) {
         Long guardianId = SecurityHelper.getCurrentUserId();
         return ResponseEntity.ok(ApiResponse.ok(
-                pairingService.inviteUser(guardianId, req.getUniqueUserId()),
+                pairingService.inviteUser(guardianId, req.resolveSubmittedCode()),
                 "Undangan dikirim ke user"));
     }
 

walkguide-backend/demo/src/main/java/com/walkguide/dto/request/InviteUserRequest.java

@@ -5,7 +5,16 @@ import lombok.Data;
 
 @Data
 public class InviteUserRequest {
-    @NotBlank(message = "User ID tidak boleh kosong")
     @Size(min = 12, max = 12, message = "User ID harus tepat 12 karakter")
     private String uniqueUserId;
+
+    @Size(min = 8, max = 8, message = "Pairing code harus tepat 8 karakter")
+    private String pairingCode;
+
+    public String resolveSubmittedCode() {
+        if (pairingCode != null && !pairingCode.isBlank()) {
+            return pairingCode.trim().toUpperCase();
+        }
+        return uniqueUserId == null ? null : uniqueUserId.trim().toUpperCase();
+    }
 }

walkguide-backend/demo/src/main/java/com/walkguide/dto/response/PairingCodeResponse.java

@@ -0,0 +1,14 @@
+package com.walkguide.dto.response;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@Builder
+public class PairingCodeResponse {
+    private String pairingCode;
+    private LocalDateTime expiresAt;
+    private long expiresInSeconds;
+}

walkguide-backend/demo/src/main/java/com/walkguide/dto/response/PairingStatusResponse.java

@@ -12,6 +12,8 @@ public class PairingStatusResponse {
     private String pairedWithName; // nama Guardian (untuk User) atau nama User (untuk Guardian)
     private String pairedWithEmail;
     private String uniqueUserId;   // ID user yang di-pair
+    private String pairingCode;    // temporary code for new pairing flow
+    private LocalDateTime pairingCodeExpiresAt;
     private LocalDateTime invitedAt;
     private LocalDateTime respondedAt;
 }

walkguide-backend/demo/src/main/java/com/walkguide/entity/User.java

@@ -29,6 +29,12 @@ public class User {
     @Column(name = "unique_user_id", unique = true, length = 12)
     private String uniqueUserId;
 
+    @Column(name = "pairing_code", unique = true, length = 8)
+    private String pairingCode;
+
+    @Column(name = "pairing_code_expires_at")
+    private LocalDateTime pairingCodeExpiresAt;
+
     @Column(name = "display_name", length = 100)
     private String displayName;
 

walkguide-backend/demo/src/main/java/com/walkguide/repository/UserRepository.java

@@ -9,5 +9,6 @@ import java.util.Optional;
 public interface UserRepository extends JpaRepository<User, Long> {
     Optional<User> findByEmail(String email);
     Optional<User> findByUniqueUserId(String uniqueUserId);
+    Optional<User> findByPairingCode(String pairingCode);
     boolean existsByEmail(String email);
 }

walkguide-backend/demo/src/main/java/com/walkguide/service/CallNotificationService.java

@@ -0,0 +1,73 @@
+package com.walkguide.service;
+
+import com.walkguide.dto.request.CallNotifyRequest;
+import com.walkguide.entity.User;
+import com.walkguide.exception.ResourceNotFoundException;
+import com.walkguide.repository.UserRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.util.Map;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class CallNotificationService {
+
+    private final FcmService fcmService;
+    private final UserRepository userRepository;
+
+    public String notifyIncomingCall(Long callerId, CallNotifyRequest req) {
+        User caller = userRepository.findById(callerId)
+                .orElseThrow(() -> new ResourceNotFoundException("Caller not found"));
+
+        User receiver = userRepository.findById(req.getReceiverId())
+                .orElseThrow(() -> new ResourceNotFoundException("Receiver not found"));
+
+        if (receiver.getFcmToken() == null || receiver.getFcmToken().isBlank()) {
+            log.warn("[CALL] Receiver {} has no FCM token; push notification skipped", req.getReceiverId());
+            return "Panggilan dikirim (receiver mungkin tidak menerima push notification)";
+        }
+
+        String callerName = caller.getDisplayName() != null ? caller.getDisplayName() : caller.getEmail();
+        Map<String, String> payload = Map.of(
+                "type", "INCOMING_CALL",
+                "callerId", String.valueOf(callerId),
+                "callerName", callerName,
+                "channelName", req.getChannelName(),
+                "agoraToken", req.getAgoraToken() != null ? req.getAgoraToken() : "",
+                "receiverUid", String.valueOf(req.getReceiverUid())
+        );
+
+        fcmService.sendHighPriority(
+                receiver.getFcmToken(),
+                "Panggilan Masuk",
+                "Panggilan dari " + callerName,
+                payload
+        );
+
+        log.info("[CALL] Incoming call notification sent | caller={} receiver={} channel={}",
+                callerId, req.getReceiverId(), req.getChannelName());
+        return "Notifikasi panggilan berhasil dikirim";
+    }
+
+    public void notifyCallEnded(Long callerId, Long otherId) {
+        if (otherId == null) {
+            return;
+        }
+
+        userRepository.findById(otherId).ifPresent(other -> {
+            if (other.getFcmToken() == null || other.getFcmToken().isBlank()) {
+                return;
+            }
+
+            fcmService.sendToToken(
+                    other.getFcmToken(),
+                    "Panggilan Berakhir",
+                    "Panggilan telah berakhir",
+                    Map.of("type", "CALL_ENDED", "callerId", String.valueOf(callerId))
+            );
+        });
+    }
+}

walkguide-backend/demo/src/main/java/com/walkguide/service/LocationService.java

@@ -6,6 +6,7 @@ import com.walkguide.entity.LocationHistory;
 import com.walkguide.entity.User;
 import com.walkguide.enums.ActivityLogType;
 import com.walkguide.enums.PairingStatus;
+import com.walkguide.exception.PairingException;
 import com.walkguide.exception.ResourceNotFoundException;
 import com.walkguide.repository.*;
 import com.walkguide.websocket.LocationBroadcaster;
@@ -79,6 +80,15 @@ public class LocationService {
                 .map(this::toResponse);
     }
 
+    public Page<LocationResponse> getLocationHistoryForGuardian(Long guardianId, Pageable pageable) {
+        Long pairedUserId = pairingRelationRepository
+                .findByGuardian_IdAndStatus(guardianId, PairingStatus.ACTIVE)
+                .map(pairing -> pairing.getUser().getId())
+                .orElseThrow(() -> new PairingException("Guardian belum terhubung dengan User aktif"));
+
+        return getLocationHistory(pairedUserId, pageable);
+    }
+
     // ========== GEOFENCE ==========
 
     private void checkGeofence(Long userId, double lat, double lng) {

walkguide-backend/demo/src/main/java/com/walkguide/service/PairingService.java

@@ -1,6 +1,7 @@
 package com.walkguide.service;
 
 import com.walkguide.dto.response.PairingStatusResponse;
+import com.walkguide.dto.response.PairingCodeResponse;
 import com.walkguide.entity.*;
 import com.walkguide.enums.*;
 import com.walkguide.exception.PairingException;
@@ -10,7 +11,9 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.security.SecureRandom;
 import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
 import java.util.List;
 import java.util.Map;
 
@@ -26,8 +29,46 @@ public class PairingService {
     private final ActivityLogService activityLogService;
     private final FcmService fcmService;
 
+    private static final String CODE_CHARS = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";
+    private static final int PAIRING_CODE_LENGTH = 8;
+    private static final int PAIRING_CODE_TTL_MINUTES = 15;
+    private static final SecureRandom RANDOM = new SecureRandom();
+
     @Transactional
-    public PairingStatusResponse inviteUser(Long guardianId, String uniqueUserId) {
+    public PairingCodeResponse getOrCreatePairingCode(Long userId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new ResourceNotFoundException("User tidak ditemukan"));
+        if (!"ROLE_USER".equals(user.getRole())) {
+            throw new PairingException("Hanya akun User yang bisa membuat pairing code.");
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        if (user.getPairingCode() == null
+                || user.getPairingCodeExpiresAt() == null
+                || !user.getPairingCodeExpiresAt().isAfter(now)) {
+            assignNewPairingCode(user, now);
+            userRepository.save(user);
+        }
+        return buildPairingCodeResponse(user, now);
+    }
+
+    @Transactional
+    public PairingCodeResponse regeneratePairingCode(Long userId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new ResourceNotFoundException("User tidak ditemukan"));
+        if (!"ROLE_USER".equals(user.getRole())) {
+            throw new PairingException("Hanya akun User yang bisa membuat pairing code.");
+        }
+        LocalDateTime now = LocalDateTime.now();
+        assignNewPairingCode(user, now);
+        userRepository.save(user);
+        activityLogService.createLog(user, ActivityLogType.PAIRING_INVITE_SENT,
+                "User membuat pairing code baru", null);
+        return buildPairingCodeResponse(user, now);
+    }
+
+    @Transactional
+    public PairingStatusResponse inviteUser(Long guardianId, String submittedCode) {
         // Guardian tidak boleh punya pairing ACTIVE atau PENDING
         if (pairingRelationRepository.existsByGuardian_IdAndStatus(guardianId, PairingStatus.ACTIVE)) {
             throw new PairingException("Kamu sudah memiliki user yang dipair. Unpair dulu sebelum invite user baru.");
@@ -38,8 +79,7 @@ public class PairingService {
 
         User guardian = userRepository.findById(guardianId)
                 .orElseThrow(() -> new ResourceNotFoundException("Guardian tidak ditemukan"));
-        User user = userRepository.findByUniqueUserId(uniqueUserId)
+        User user = resolveUserByPairingCode(submittedCode);
-                .orElseThrow(() -> new ResourceNotFoundException("User dengan ID '" + uniqueUserId + "' tidak ditemukan"));
 
         if (!"ROLE_USER".equals(user.getRole())) {
             throw new PairingException("ID tersebut bukan milik User. Pastikan kamu memasukkan ID yang benar.");
@@ -55,6 +95,10 @@ public class PairingService {
                 .build();
         pairing = pairingRelationRepository.save(pairing);
 
+        user.setPairingCode(null);
+        user.setPairingCodeExpiresAt(null);
+        userRepository.save(user);
+
         // Kirim FCM ke user
         fcmService.sendToToken(user.getFcmToken(),
                 "Pairing Request",
@@ -199,6 +243,51 @@ public class PairingService {
                 .enabled(name != null).build();
     }
 
+    private User resolveUserByPairingCode(String submittedCode) {
+        if (submittedCode == null || submittedCode.isBlank()) {
+            throw new PairingException("Pairing code tidak boleh kosong.");
+        }
+        String code = submittedCode.trim().toUpperCase();
+        User user = userRepository.findByPairingCode(code)
+                .orElseThrow(() -> new ResourceNotFoundException(
+                        "Pairing code '" + code + "' tidak ditemukan. Minta User generate kode baru."));
+        if (user.getPairingCodeExpiresAt() == null
+                || !user.getPairingCodeExpiresAt().isAfter(LocalDateTime.now())) {
+            user.setPairingCode(null);
+            user.setPairingCodeExpiresAt(null);
+            userRepository.save(user);
+            throw new PairingException("Pairing code sudah kadaluarsa. Minta User generate kode baru.");
+        }
+        return user;
+    }
+
+    private void assignNewPairingCode(User user, LocalDateTime now) {
+        String candidate;
+        do {
+            candidate = randomCode();
+        } while (userRepository.findByPairingCode(candidate).isPresent());
+        user.setPairingCode(candidate);
+        user.setPairingCodeExpiresAt(now.plusMinutes(PAIRING_CODE_TTL_MINUTES));
+    }
+
+    private String randomCode() {
+        StringBuilder sb = new StringBuilder(PAIRING_CODE_LENGTH);
+        for (int i = 0; i < PAIRING_CODE_LENGTH; i++) {
+            sb.append(CODE_CHARS.charAt(RANDOM.nextInt(CODE_CHARS.length())));
+        }
+        return sb.toString();
+    }
+
+    private PairingCodeResponse buildPairingCodeResponse(User user, LocalDateTime now) {
+        long seconds = Math.max(0,
+                ChronoUnit.SECONDS.between(now, user.getPairingCodeExpiresAt()));
+        return PairingCodeResponse.builder()
+                .pairingCode(user.getPairingCode())
+                .expiresAt(user.getPairingCodeExpiresAt())
+                .expiresInSeconds(seconds)
+                .build();
+    }
+
     private PairingStatusResponse buildStatus(PairingRelation p, User guardian, User user, String viewerRole) {
         String pairedWithName = "GUARDIAN".equals(viewerRole)
                 ? user.getDisplayName() : guardian.getDisplayName();
@@ -211,6 +300,8 @@ public class PairingService {
                 .pairedWithName(pairedWithName)
                 .pairedWithEmail(pairedWithEmail)
                 .uniqueUserId(user.getUniqueUserId())
+                .pairingCode(user.getPairingCode())
+                .pairingCodeExpiresAt(user.getPairingCodeExpiresAt())
                 .invitedAt(p.getInvitedAt())
                 .respondedAt(p.getRespondedAt())
                 .build();

walkguide-backend/demo/src/main/resources/application-dev.yml

@@ -6,9 +6,9 @@
 
 spring:
   datasource:
-    url: ${DB_URL:jdbc:postgresql://202.46.28.160:2002/uas_5803024001}
+    url: ${DB_URL}
-    username: ${DB_USERNAME:5803024001}
+    username: ${DB_USERNAME}
-    password: ${DB_PASSWORD:pw5803024001}
+    password: ${DB_PASSWORD}
 
   jpa:
     show-sql: true
@@ -17,8 +17,8 @@ spring:
         format_sql: true
 
 jwt:
-  secret: ${JWT_SECRET:404E635266556A586E3272357538782F413F4428472B4B6250645367566B5970}
+  secret: ${JWT_SECRET}
-  expiration: 86400000
+  expiration: ${JWT_EXPIRATION:86400000}
 
 agora:
   app-id: ${AGORA_APP_ID:}

walkguide-backend/demo/src/main/resources/db/migration/V17__add_expiring_pairing_codes.sql

@@ -0,0 +1,9 @@
+-- V17: Expiring pairing code for lecturer revision.
+-- unique_user_id remains a stable account identifier; pairing_code is temporary.
+
+ALTER TABLE users
+    ADD COLUMN IF NOT EXISTS pairing_code VARCHAR(8) UNIQUE,
+    ADD COLUMN IF NOT EXISTS pairing_code_expires_at TIMESTAMP;
+
+CREATE INDEX IF NOT EXISTS idx_users_pairing_code ON users(pairing_code);
+CREATE INDEX IF NOT EXISTS idx_users_pairing_code_expires_at ON users(pairing_code_expires_at);

walkguide-backend/demo/src/main/resources/openapi.yaml

@@ -4,7 +4,8 @@ info:
   version: 1.0.0
   description: Design contract for WalkGuide Flutter and Spring Boot integration.
 servers:
-  - url: http://localhost:8080/api/v1
+  - url: https://api.walkguide.example/api/v1
+    description: Production deployment URL placeholder
 security:
   - bearerAuth: []
 components:
@@ -37,9 +38,16 @@ components:
         role: { type: string, enum: [USER, GUARDIAN] }
     PairingInviteRequest:
       type: object
-      required: [uniqueUserId]
+      required: [pairingCode]
       properties:
-        uniqueUserId: { type: string, minLength: 12, maxLength: 12 }
+        pairingCode: { type: string, minLength: 8, maxLength: 8, description: "Temporary code generated by the User app; expires automatically." }
+        uniqueUserId: { type: string, minLength: 12, maxLength: 12, deprecated: true }
+    PairingCodeResponse:
+      type: object
+      properties:
+        pairingCode: { type: string }
+        expiresAt: { type: string, format: date-time }
+        expiresInSeconds: { type: integer, format: int64 }
     PairingRespondRequest:
       type: object
       required: [pairingId, accept]
@@ -107,6 +115,14 @@ paths:
             schema: { $ref: "#/components/schemas/PairingInviteRequest" }
       responses:
         "200": { description: Invite sent }
+  /shared/pairing/code:
+    get:
+      responses:
+        "200": { description: Active expiring pairing code }
+  /shared/pairing/code/regenerate:
+    post:
+      responses:
+        "200": { description: New expiring pairing code generated }
   /shared/pairing/respond:
     post:
       requestBody:

walkguide-backend/demo/src/test/java/com/walkguide/controller/CallControllerTest.java

@@ -4,13 +4,10 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.walkguide.dto.request.CallNotifyRequest;
 import com.walkguide.dto.request.CallTokenRequest;
 import com.walkguide.dto.response.AgoraTokenResponse;
-import com.walkguide.entity.User;
+import com.walkguide.security.JwtAuthFilter;
-import com.walkguide.exception.ResourceNotFoundException;
-import com.walkguide.repository.UserRepository;
 import com.walkguide.security.SecurityHelper;
 import com.walkguide.service.AgoraTokenService;
-import com.walkguide.service.FcmService;
+import com.walkguide.service.CallNotificationService;
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.mockito.MockedStatic;
@@ -18,19 +15,22 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
-import com.walkguide.security.JwtAuthFilter;
 import org.springframework.http.MediaType;
 import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.web.servlet.MockMvc;
 
 import java.util.Map;
-import java.util.Optional;
 
-import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.*;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mockStatic;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 @AutoConfigureMockMvc(addFilters = false)
 @WebMvcTest(CallController.class)
@@ -38,7 +38,8 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 @DisplayName("CallController Unit Tests")
 class CallControllerTest {
 
-    @MockBean private JwtAuthFilter jwtAuthFilter;
+    @MockBean
+    private JwtAuthFilter jwtAuthFilter;
 
     @Autowired
     private MockMvc mockMvc;
@@ -50,35 +51,10 @@ class CallControllerTest {
     private AgoraTokenService agoraTokenService;
 
     @MockBean
-    private FcmService fcmService;
+    private CallNotificationService callNotificationService;
-
-    @MockBean
-    private UserRepository userRepository;
-
-    private User sampleCaller;
-    private User sampleReceiver;
-
-    @BeforeEach
-    void setUp() {
-        sampleCaller = User.builder()
-                .id(1L)
-                .email("caller@test.com")
-                .displayName("Caller User")
-                .fcmToken("fcm-caller-token")
-                .build();
-
-        sampleReceiver = User.builder()
-                .id(2L)
-                .email("receiver@test.com")
-                .displayName("Receiver Guardian")
-                .fcmToken("fcm-receiver-token")
-                .build();
-    }
-
-    // ===== GENERATE TOKEN =====
 
     @Test
-    @DisplayName("POST /api/v1/shared/call/token - valid request harus return Agora token")
+    @DisplayName("POST /api/v1/shared/call/token - valid request returns Agora token")
     void generateToken_validRequest_shouldReturn200() throws Exception {
         try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
             sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
@@ -88,7 +64,7 @@ class CallControllerTest {
 
             AgoraTokenResponse tokenResp = AgoraTokenResponse.builder()
                     .token("agora-rtc-token-xyz")
-                    .channelName("call_1_2_1234567890")
+                    .channelName("call_1_2")
                     .uid(1001)
                     .build();
 
@@ -102,34 +78,24 @@ class CallControllerTest {
                     .andExpect(jsonPath("$.success").value(true))
                     .andExpect(jsonPath("$.message").value("Token Agora berhasil digenerate"))
                     .andExpect(jsonPath("$.data.token").value("agora-rtc-token-xyz"))
-                    .andExpect(jsonPath("$.data.channelName").value("call_1_2_1234567890"));
+                    .andExpect(jsonPath("$.data.channelName").value("call_1_2"));
-
-            verify(agoraTokenService).generateToken(1L, 2L);
         }
     }
 
     @Test
-    @DisplayName("POST /api/v1/shared/call/token - receiverId null harus return 400")
+    @DisplayName("POST /api/v1/shared/call/token - null receiverId returns 400")
     void generateToken_nullReceiverId_shouldReturn400() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
-            // CallTokenRequest dengan receiverId null — @Valid harus menolak
         CallTokenRequest req = new CallTokenRequest();
-            // receiverId tidak di-set (null)
 
         mockMvc.perform(post("/api/v1/shared/call/token")
                         .with(csrf())
                         .contentType(MediaType.APPLICATION_JSON)
                         .content(objectMapper.writeValueAsString(req)))
                 .andExpect(status().isBadRequest());
-
-            verify(agoraTokenService, never()).generateToken(anyLong(), anyLong());
-        }
     }
 
     @Test
-    @DisplayName("POST /api/v1/shared/call/token - service throw harus return 500")
+    @DisplayName("POST /api/v1/shared/call/token - service error returns 500")
     void generateToken_serviceThrows_shouldReturn500() throws Exception {
         try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
             sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
@@ -148,21 +114,17 @@ class CallControllerTest {
         }
     }
 
-    // ===== NOTIFY CALL =====
-
     @Test
-    @DisplayName("POST /api/v1/shared/call/notify - receiver punya FCM token harus kirim notifikasi")
+    @DisplayName("POST /api/v1/shared/call/notify - delegates to call notification service")
-    void notifyCall_receiverHasFcmToken_shouldReturn200AndSendFcm() throws Exception {
+    void notifyCall_validRequest_shouldReturnServiceMessage() throws Exception {
         try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
             sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
+            when(callNotificationService.notifyIncomingCall(eq(1L), any(CallNotifyRequest.class)))
-            when(userRepository.findById(1L)).thenReturn(Optional.of(sampleCaller));
+                    .thenReturn("Notifikasi panggilan berhasil dikirim");
-            when(userRepository.findById(2L)).thenReturn(Optional.of(sampleReceiver));
-            doNothing().when(fcmService).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
 
             CallNotifyRequest req = new CallNotifyRequest();
             req.setReceiverId(2L);
-            req.setChannelName("call_1_2_1234567890");
+            req.setChannelName("call_1_2");
             req.setAgoraToken("agora-token-xyz");
             req.setReceiverUid(1002);
 
@@ -174,260 +136,40 @@ class CallControllerTest {
                     .andExpect(jsonPath("$.success").value(true))
                     .andExpect(jsonPath("$.message").value("Notifikasi panggilan berhasil dikirim"));
 
-            verify(fcmService).sendHighPriority(
+            verify(callNotificationService).notifyIncomingCall(eq(1L), any(CallNotifyRequest.class));
-                    eq("fcm-receiver-token"),
-                    eq("📞 Panggilan Masuk"),
-                    contains("Caller User"),
-                    anyMap()
-            );
         }
     }
 
     @Test
-    @DisplayName("POST /api/v1/shared/call/notify - receiver tidak punya FCM token harus return 200 tanpa FCM")
+    @DisplayName("POST /api/v1/shared/call/notify - validation failure does not call service")
-    void notifyCall_receiverNoFcmToken_shouldReturn200WithWarningMessage() throws Exception {
+    void notifyCall_invalidRequest_shouldReturn400() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
-            User receiverNoFcm = User.builder()
-                    .id(2L)
-                    .email("receiver@test.com")
-                    .displayName("Receiver")
-                    .fcmToken(null)  // tidak punya FCM token
-                    .build();
-
-            when(userRepository.findById(1L)).thenReturn(Optional.of(sampleCaller));
-            when(userRepository.findById(2L)).thenReturn(Optional.of(receiverNoFcm));
-
         CallNotifyRequest req = new CallNotifyRequest();
-            req.setReceiverId(2L);
+        req.setChannelName("call_1_2");
-            req.setChannelName("call_1_2_abc");
-            req.setAgoraToken("token-xyz");
-            req.setReceiverUid(1002);
 
         mockMvc.perform(post("/api/v1/shared/call/notify")
                         .with(csrf())
                         .contentType(MediaType.APPLICATION_JSON)
                         .content(objectMapper.writeValueAsString(req)))
-                    .andExpect(status().isOk())
+                .andExpect(status().isBadRequest());
-                    .andExpect(jsonPath("$.message").value(
-                            "Panggilan dikirim (receiver mungkin tidak menerima push notification)"));
 
-            // FCM tidak boleh dipanggil karena tidak ada token
+        verify(callNotificationService, never()).notifyIncomingCall(any(), any());
-            verify(fcmService, never()).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
-        }
     }
 
     @Test
-    @DisplayName("POST /api/v1/shared/call/notify - receiver FCM token blank harus return 200 tanpa FCM")
+    @DisplayName("POST /api/v1/shared/call/end - delegates to call notification service")
-    void notifyCall_receiverBlankFcmToken_shouldReturn200WithoutFcm() throws Exception {
+    void endCall_validOtherId_shouldDelegateToService() throws Exception {
         try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
             sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
 
-            User receiverBlankFcm = User.builder()
-                    .id(2L)
-                    .email("receiver@test.com")
-                    .displayName("Receiver")
-                    .fcmToken("   ")  // blank
-                    .build();
-
-            when(userRepository.findById(1L)).thenReturn(Optional.of(sampleCaller));
-            when(userRepository.findById(2L)).thenReturn(Optional.of(receiverBlankFcm));
-
-            CallNotifyRequest req = new CallNotifyRequest();
-            req.setReceiverId(2L);
-            req.setChannelName("channel-abc");
-            req.setAgoraToken("token");
-            req.setReceiverUid(1002);
-
-            mockMvc.perform(post("/api/v1/shared/call/notify")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(req)))
-                    .andExpect(status().isOk())
-                    .andExpect(jsonPath("$.message").value(
-                            "Panggilan dikirim (receiver mungkin tidak menerima push notification)"));
-
-            verify(fcmService, never()).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
-        }
-    }
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/notify - caller tidak ditemukan harus return 404")
-    void notifyCall_callerNotFound_shouldReturn404() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-            when(userRepository.findById(1L))
-                    .thenThrow(new ResourceNotFoundException("Caller not found"));
-
-            CallNotifyRequest req = new CallNotifyRequest();
-            req.setReceiverId(2L);
-            req.setChannelName("channel-abc");
-            req.setAgoraToken("token");
-            req.setReceiverUid(1002);
-
-            mockMvc.perform(post("/api/v1/shared/call/notify")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(req)))
-                    .andExpect(status().isNotFound());
-
-            verify(fcmService, never()).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
-        }
-    }
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/notify - receiver tidak ditemukan harus return 404")
-    void notifyCall_receiverNotFound_shouldReturn404() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-            when(userRepository.findById(1L)).thenReturn(Optional.of(sampleCaller));
-            when(userRepository.findById(2L))
-                    .thenThrow(new ResourceNotFoundException("Receiver not found"));
-
-            CallNotifyRequest req = new CallNotifyRequest();
-            req.setReceiverId(2L);
-            req.setChannelName("channel-abc");
-            req.setAgoraToken("token");
-            req.setReceiverUid(1002);
-
-            mockMvc.perform(post("/api/v1/shared/call/notify")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(req)))
-                    .andExpect(status().isNotFound());
-        }
-    }
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/notify - caller displayName null harus pakai email sebagai pengganti")
-    void notifyCall_callerNoDisplayName_shouldUseEmailAsFallback() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
-            User callerNoName = User.builder()
-                    .id(1L)
-                    .email("noreply@test.com")
-                    .displayName(null)  // tidak ada displayName
-                    .build();
-
-            when(userRepository.findById(1L)).thenReturn(Optional.of(callerNoName));
-            when(userRepository.findById(2L)).thenReturn(Optional.of(sampleReceiver));
-            doNothing().when(fcmService).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
-
-            CallNotifyRequest req = new CallNotifyRequest();
-            req.setReceiverId(2L);
-            req.setChannelName("channel-abc");
-            req.setAgoraToken("token");
-            req.setReceiverUid(1002);
-
-            mockMvc.perform(post("/api/v1/shared/call/notify")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(req)))
-                    .andExpect(status().isOk());
-
-            // Pastikan body notifikasi menggunakan email sebagai fallback
-            verify(fcmService).sendHighPriority(
-                    anyString(),
-                    anyString(),
-                    contains("noreply@test.com"),
-                    anyMap()
-            );
-        }
-    }
-
-    // ===== END CALL =====
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/end - otherId valid dan punya FCM token harus kirim notifikasi berakhir")
-    void endCall_otherHasFcmToken_shouldSendEndNotification() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-            when(userRepository.findById(2L)).thenReturn(Optional.of(sampleReceiver));
-            doNothing().when(fcmService).sendToToken(anyString(), anyString(), anyString(), anyMap());
-
-            Map<String, Long> body = Map.of("otherId", 2L);
-
             mockMvc.perform(post("/api/v1/shared/call/end")
                             .with(csrf())
                             .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(body)))
+                            .content(objectMapper.writeValueAsString(Map.of("otherId", 2L))))
                     .andExpect(status().isOk())
                     .andExpect(jsonPath("$.success").value(true))
                     .andExpect(jsonPath("$.message").value("Call ended"));
 
-            verify(fcmService).sendToToken(
+            verify(callNotificationService).notifyCallEnded(1L, 2L);
-                    eq("fcm-receiver-token"),
-                    eq("Panggilan Berakhir"),
-                    eq("Panggilan telah berakhir"),
-                    anyMap()
-            );
-        }
-    }
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/end - otherId null harus return 200 tanpa kirim FCM")
-    void endCall_nullOtherId_shouldReturn200WithoutFcm() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
-            Map<String, Long> body = Map.of();  // tidak ada otherId
-
-            mockMvc.perform(post("/api/v1/shared/call/end")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(body)))
-                    .andExpect(status().isOk())
-                    .andExpect(jsonPath("$.message").value("Call ended"));
-
-            verify(fcmService, never()).sendToToken(anyString(), anyString(), anyString(), anyMap());
-        }
-    }
-
-    @Test
-    @DisplayName("POST /api/v1/shared/call/end - other tidak punya FCM token harus return 200 tanpa FCM")
-    void endCall_otherNoFcmToken_shouldReturn200WithoutFcm() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(1L);
-
-            User otherNoFcm = User.builder()
-                    .id(2L)
-                    .email("other@test.com")
-                    .fcmToken(null)
-                    .build();
-            when(userRepository.findById(2L)).thenReturn(Optional.of(otherNoFcm));
-
-            Map<String, Long> body = Map.of("otherId", 2L);
-
-            mockMvc.perform(post("/api/v1/shared/call/end")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(body)))
-                    .andExpect(status().isOk())
-                    .andExpect(jsonPath("$.message").value("Call ended"));
-
-            verify(fcmService, never()).sendToToken(anyString(), anyString(), anyString(), anyMap());
-        }
-    }
-
-    @Test
-    @WithMockUser(username = "2", roles = "GUARDIAN")
-    @DisplayName("POST /api/v1/shared/call/end - Guardian juga bisa end call")
-    void endCall_asGuardian_shouldReturn200() throws Exception {
-        try (MockedStatic<SecurityHelper> sh = mockStatic(SecurityHelper.class)) {
-            sh.when(SecurityHelper::getCurrentUserId).thenReturn(2L);
-            when(userRepository.findById(1L)).thenReturn(Optional.of(sampleCaller));
-            doNothing().when(fcmService).sendToToken(anyString(), anyString(), anyString(), anyMap());
-
-            Map<String, Long> body = Map.of("otherId", 1L);
-
-            mockMvc.perform(post("/api/v1/shared/call/end")
-                            .with(csrf())
-                            .contentType(MediaType.APPLICATION_JSON)
-                            .content(objectMapper.writeValueAsString(body)))
-                    .andExpect(status().isOk())
-                    .andExpect(jsonPath("$.message").value("Call ended"));
         }
     }
 }

walkguide-backend/demo/src/test/java/com/walkguide/controller/PairingControllerTest.java

@@ -92,9 +92,9 @@ class PairingControllerTest {
             sh.when(SecurityHelper::getCurrentUserId).thenReturn(2L);
 
             InviteUserRequest req = new InviteUserRequest();
-            req.setUniqueUserId("INVALID999");
+            req.setPairingCode("BAD99999");
 
-            when(pairingService.inviteUser(2L, "INVALID999"))
+            when(pairingService.inviteUser(2L, "BAD99999"))
                     .thenThrow(new RuntimeException("User dengan ID tersebut tidak ditemukan"));
 
             mockMvc.perform(post("/api/v1/shared/pairing/invite")

walkguide-backend/demo/src/test/java/com/walkguide/service/CallNotificationServiceTest.java

@@ -0,0 +1,128 @@
+package com.walkguide.service;
+
+import com.walkguide.dto.request.CallNotifyRequest;
+import com.walkguide.entity.User;
+import com.walkguide.exception.ResourceNotFoundException;
+import com.walkguide.repository.UserRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.anyMap;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.contains;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+@DisplayName("CallNotificationService Unit Tests")
+class CallNotificationServiceTest {
+
+    @Mock
+    private FcmService fcmService;
+
+    @Mock
+    private UserRepository userRepository;
+
+    @InjectMocks
+    private CallNotificationService service;
+
+    private User caller;
+    private User receiver;
+    private CallNotifyRequest request;
+
+    @BeforeEach
+    void setUp() {
+        caller = User.builder()
+                .id(1L)
+                .email("caller@test.com")
+                .displayName("Caller User")
+                .build();
+
+        receiver = User.builder()
+                .id(2L)
+                .email("receiver@test.com")
+                .displayName("Receiver")
+                .fcmToken("receiver-token")
+                .build();
+
+        request = new CallNotifyRequest();
+        request.setReceiverId(2L);
+        request.setChannelName("call_1_2");
+        request.setAgoraToken("agora-token");
+        request.setReceiverUid(1002);
+    }
+
+    @Test
+    @DisplayName("notifyIncomingCall sends high priority FCM when receiver has token")
+    void notifyIncomingCall_receiverHasToken_shouldSendFcm() {
+        when(userRepository.findById(1L)).thenReturn(Optional.of(caller));
+        when(userRepository.findById(2L)).thenReturn(Optional.of(receiver));
+
+        String message = service.notifyIncomingCall(1L, request);
+
+        assertEquals("Notifikasi panggilan berhasil dikirim", message);
+        verify(fcmService).sendHighPriority(
+                eq("receiver-token"),
+                eq("Panggilan Masuk"),
+                contains("Caller User"),
+                anyMap()
+        );
+    }
+
+    @Test
+    @DisplayName("notifyIncomingCall skips FCM when receiver token is missing")
+    void notifyIncomingCall_receiverHasNoToken_shouldSkipFcm() {
+        receiver.setFcmToken(null);
+        when(userRepository.findById(1L)).thenReturn(Optional.of(caller));
+        when(userRepository.findById(2L)).thenReturn(Optional.of(receiver));
+
+        String message = service.notifyIncomingCall(1L, request);
+
+        assertEquals("Panggilan dikirim (receiver mungkin tidak menerima push notification)", message);
+        verify(fcmService, never()).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
+    }
+
+    @Test
+    @DisplayName("notifyIncomingCall throws 404 when caller is missing")
+    void notifyIncomingCall_missingCaller_shouldThrow() {
+        when(userRepository.findById(1L)).thenReturn(Optional.empty());
+
+        assertThrows(ResourceNotFoundException.class, () -> service.notifyIncomingCall(1L, request));
+        verify(fcmService, never()).sendHighPriority(anyString(), anyString(), anyString(), anyMap());
+    }
+
+    @Test
+    @DisplayName("notifyCallEnded sends FCM when other user has token")
+    void notifyCallEnded_otherHasToken_shouldSendFcm() {
+        when(userRepository.findById(2L)).thenReturn(Optional.of(receiver));
+
+        service.notifyCallEnded(1L, 2L);
+
+        verify(fcmService).sendToToken(
+                eq("receiver-token"),
+                eq("Panggilan Berakhir"),
+                eq("Panggilan telah berakhir"),
+                anyMap()
+        );
+    }
+
+    @Test
+    @DisplayName("notifyCallEnded skips repository lookup when otherId is null")
+    void notifyCallEnded_nullOtherId_shouldReturn() {
+        service.notifyCallEnded(1L, null);
+
+        verify(userRepository, never()).findById(2L);
+        verify(fcmService, never()).sendToToken(anyString(), anyString(), anyString(), anyMap());
+    }
+}

walkguide-backend/demo/src/test/java/com/walkguide/service/LocationServiceTest.java

@@ -7,6 +7,7 @@ import com.walkguide.entity.LocationHistory;
 import com.walkguide.entity.PairingRelation;
 import com.walkguide.entity.User;
 import com.walkguide.enums.PairingStatus;
+import com.walkguide.exception.PairingException;
 import com.walkguide.repository.*;
 import com.walkguide.websocket.LocationBroadcaster;
 import org.junit.jupiter.api.BeforeEach;
@@ -232,6 +233,35 @@ class LocationServiceTest {
         assertThat(result.getContent().get(0).getLat()).isEqualTo(-7.257);
     }
 
+    @Test
+    @DisplayName("getLocationHistoryForGuardian - harus ambil histori milik User yang dipair, bukan guardian")
+    void getLocationHistoryForGuardian_activePairing_shouldUsePairedUserId() {
+        Pageable pageable = PageRequest.of(0, 10);
+        Page<LocationHistory> page = new PageImpl<>(List.of(sampleLocation), pageable, 1);
+
+        when(pairingRelationRepository.findByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE))
+                .thenReturn(Optional.of(activePairing));
+        when(locationHistoryRepository.findByUserIdOrderByCreatedAtDesc(2L, pageable)).thenReturn(page);
+
+        Page<LocationResponse> result = locationService.getLocationHistoryForGuardian(1L, pageable);
+
+        assertThat(result.getContent()).hasSize(1);
+        verify(locationHistoryRepository).findByUserIdOrderByCreatedAtDesc(2L, pageable);
+        verify(locationHistoryRepository, never()).findByUserIdOrderByCreatedAtDesc(1L, pageable);
+    }
+
+    @Test
+    @DisplayName("getLocationHistoryForGuardian - tanpa pairing aktif harus error pairing")
+    void getLocationHistoryForGuardian_noPairing_shouldThrow() {
+        Pageable pageable = PageRequest.of(0, 10);
+        when(pairingRelationRepository.findByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE))
+                .thenReturn(Optional.empty());
+
+        assertThatThrownBy(() -> locationService.getLocationHistoryForGuardian(1L, pageable))
+                .isInstanceOf(PairingException.class)
+                .hasMessageContaining("Guardian belum terhubung");
+    }
+
     // ===== haversineMeters TESTS =====
 
     @Test

walkguide-backend/demo/src/test/java/com/walkguide/service/PairingServiceTest.java

@@ -16,6 +16,7 @@ import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 
 import java.util.Optional;
+import java.time.LocalDateTime;
 
 import static org.assertj.core.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.*;
@@ -54,6 +55,8 @@ class PairingServiceTest {
                 .role("ROLE_USER")
                 .displayName("User Test")
                 .uniqueUserId("ABC123DEF456")
+                .pairingCode("AB12CD34")
+                .pairingCodeExpiresAt(LocalDateTime.now().plusMinutes(10))
                 .fcmToken("user-fcm-token")
                 .build();
     }
@@ -66,7 +69,7 @@ class PairingServiceTest {
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE)).thenReturn(false);
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.PENDING)).thenReturn(false);
         when(userRepository.findById(1L)).thenReturn(Optional.of(guardian));
-        when(userRepository.findByUniqueUserId("ABC123DEF456")).thenReturn(Optional.of(user));
+        when(userRepository.findByPairingCode("AB12CD34")).thenReturn(Optional.of(user));
         when(pairingRelationRepository.existsByUser_IdAndStatus(2L, PairingStatus.ACTIVE)).thenReturn(false);
         when(pairingRelationRepository.save(any(PairingRelation.class))).thenAnswer(inv -> {
             PairingRelation p = inv.getArgument(0);
@@ -74,7 +77,7 @@ class PairingServiceTest {
             return p;
         });
 
-        PairingStatusResponse result = pairingService.inviteUser(1L, "ABC123DEF456");
+        PairingStatusResponse result = pairingService.inviteUser(1L, "AB12CD34");
 
         assertThat(result).isNotNull();
         verify(pairingRelationRepository).save(any(PairingRelation.class));
@@ -113,7 +116,7 @@ class PairingServiceTest {
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE)).thenReturn(false);
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.PENDING)).thenReturn(false);
         when(userRepository.findById(1L)).thenReturn(Optional.of(guardian));
-        when(userRepository.findByUniqueUserId("INVALID")).thenReturn(Optional.empty());
+        when(userRepository.findByPairingCode("INVALID")).thenReturn(Optional.empty());
 
         assertThatThrownBy(() -> pairingService.inviteUser(1L, "INVALID"))
                 .isInstanceOf(ResourceNotFoundException.class)
@@ -124,14 +127,17 @@ class PairingServiceTest {
     @DisplayName("inviteUser - target bukan ROLE_USER harus throw PairingException")
     void inviteUser_targetNotUser_shouldThrow() {
         User anotherGuardian = User.builder()
-                .id(3L).role("ROLE_GUARDIAN").uniqueUserId("GRD000000001").build();
+                .id(3L).role("ROLE_GUARDIAN")
+                .pairingCode("GRD00001")
+                .pairingCodeExpiresAt(LocalDateTime.now().plusMinutes(10))
+                .build();
 
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE)).thenReturn(false);
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.PENDING)).thenReturn(false);
         when(userRepository.findById(1L)).thenReturn(Optional.of(guardian));
-        when(userRepository.findByUniqueUserId("GRD000000001")).thenReturn(Optional.of(anotherGuardian));
+        when(userRepository.findByPairingCode("GRD00001")).thenReturn(Optional.of(anotherGuardian));
 
-        assertThatThrownBy(() -> pairingService.inviteUser(1L, "GRD000000001"))
+        assertThatThrownBy(() -> pairingService.inviteUser(1L, "GRD00001"))
                 .isInstanceOf(PairingException.class)
                 .hasMessageContaining("bukan milik User");
     }
@@ -142,10 +148,10 @@ class PairingServiceTest {
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.ACTIVE)).thenReturn(false);
         when(pairingRelationRepository.existsByGuardian_IdAndStatus(1L, PairingStatus.PENDING)).thenReturn(false);
         when(userRepository.findById(1L)).thenReturn(Optional.of(guardian));
-        when(userRepository.findByUniqueUserId("ABC123DEF456")).thenReturn(Optional.of(user));
+        when(userRepository.findByPairingCode("AB12CD34")).thenReturn(Optional.of(user));
         when(pairingRelationRepository.existsByUser_IdAndStatus(2L, PairingStatus.ACTIVE)).thenReturn(true);
 
-        assertThatThrownBy(() -> pairingService.inviteUser(1L, "ABC123DEF456"))
+        assertThatThrownBy(() -> pairingService.inviteUser(1L, "AB12CD34"))
                 .isInstanceOf(PairingException.class)
                 .hasMessageContaining("sudah dipair dengan Guardian lain");
     }

walkguide-mobile/walkguide_app/.gitignore

@@ -49,3 +49,13 @@ hs_err_pid*.log
 
 # Android SDK path (generated by Android Studio)
 android/local.properties
+
+# Local Python/YOLO export artifacts - do not commit
+.venv*/
+yolov8n.onnx
+yolov8n.pt
+yolov8n_saved_model/
+calibration_image_sample_data_*.npy
+devtools_options.yaml
+android/app/src/main/java/dev/flutter/plugins/
+android/app/src/main/java/io/flutter/plugins/

walkguide-mobile/walkguide_app/android/app/build.gradle.kts

@@ -31,6 +31,10 @@ android {
         versionName = flutter.versionName
     }
 
+    androidResources {
+        noCompress += listOf("tflite", "lite")
+    }
+
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.

walkguide-mobile/walkguide_app/assets/models/labels.txt

@@ -1,10 +1,80 @@
 person
+bicycle
 car
 motorcycle
-bicycle
+airplane
 bus
+train
 truck
-chair
+boat
+traffic light
+fire hydrant
+stop sign
+parking meter
 bench
-door
+bird
-stairs
+cat
+dog
+horse
+sheep
+cow
+elephant
+bear
+zebra
+giraffe
+backpack
+umbrella
+handbag
+tie
+suitcase
+frisbee
+skis
+snowboard
+sports ball
+kite
+baseball bat
+baseball glove
+skateboard
+surfboard
+tennis racket
+bottle
+wine glass
+cup
+fork
+knife
+spoon
+bowl
+banana
+apple
+sandwich
+orange
+broccoli
+carrot
+hot dog
+pizza
+donut
+cake
+chair
+couch
+potted plant
+bed
+dining table
+toilet
+tv
+laptop
+mouse
+remote
+keyboard
+cell phone
+microwave
+oven
+toaster
+sink
+refrigerator
+book
+clock
+vase
+scissors
+teddy bear
+hair drier
+toothbrush

walkguide-mobile/walkguide_app/lib/app/app.dart

@@ -20,35 +20,79 @@ class WalkGuideApp extends StatelessWidget {
         routerConfig: appRouter,
         theme: ThemeData(
           useMaterial3: true,
-        colorScheme: ColorScheme.fromSeed(seedColor: seed),
+          colorScheme: ColorScheme.fromSeed(
-        scaffoldBackgroundColor: const Color(0xFFF8FAFC),
+            seedColor: seed,
+            brightness: Brightness.light,
+          ),
+          scaffoldBackgroundColor: const Color(0xFFF4F7FB),
           textTheme: GoogleFonts.interTextTheme(),
+          pageTransitionsTheme: const PageTransitionsTheme(
+            builders: {
+              TargetPlatform.android: ZoomPageTransitionsBuilder(),
+              TargetPlatform.iOS: CupertinoPageTransitionsBuilder(),
+              TargetPlatform.windows: FadeUpwardsPageTransitionsBuilder(),
+            },
+          ),
           appBarTheme: const AppBarTheme(
             centerTitle: false,
-          backgroundColor: Colors.white,
+            backgroundColor: Color(0xFFF4F7FB),
             foregroundColor: Color(0xFF0F172A),
             elevation: 0,
-          surfaceTintColor: Colors.white,
+            surfaceTintColor: Colors.transparent,
+          ),
+          navigationBarTheme: NavigationBarThemeData(
+            elevation: 0,
+            height: 76,
+            backgroundColor: Colors.white.withValues(alpha: 0.96),
+            indicatorColor: const Color(0xFFE0E7FF),
+            labelTextStyle: WidgetStateProperty.resolveWith(
+              (states) => TextStyle(
+                fontSize: 12,
+                fontWeight: states.contains(WidgetState.selected)
+                    ? FontWeight.w800
+                    : FontWeight.w500,
+              ),
+            ),
           ),
           filledButtonTheme: FilledButtonThemeData(
             style: FilledButton.styleFrom(
               backgroundColor: seed,
               foregroundColor: Colors.white,
-            minimumSize: const Size(0, 46),
+              minimumSize: const Size(0, 50),
-            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
+              textStyle: const TextStyle(fontWeight: FontWeight.w800),
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(14),
+              ),
+            ),
+          ),
+          outlinedButtonTheme: OutlinedButtonThemeData(
+            style: OutlinedButton.styleFrom(
+              minimumSize: const Size(0, 50),
+              foregroundColor: seed,
+              textStyle: const TextStyle(fontWeight: FontWeight.w800),
+              side: const BorderSide(color: Color(0xFFCBD5E1)),
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(14),
+              ),
             ),
           ),
           inputDecorationTheme: InputDecorationTheme(
             filled: true,
-          fillColor: Colors.white,
+            fillColor: const Color(0xFFF8FAFC),
+            contentPadding:
+                const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
             border: OutlineInputBorder(
-            borderRadius: BorderRadius.circular(10),
+              borderRadius: BorderRadius.circular(16),
               borderSide: const BorderSide(color: Color(0xFFE2E8F0)),
             ),
             enabledBorder: OutlineInputBorder(
-            borderRadius: BorderRadius.circular(10),
+              borderRadius: BorderRadius.circular(16),
               borderSide: const BorderSide(color: Color(0xFFE2E8F0)),
             ),
+            focusedBorder: OutlineInputBorder(
+              borderRadius: BorderRadius.circular(16),
+              borderSide: const BorderSide(color: seed, width: 1.5),
+            ),
           ),
         ),
       ),

walkguide-mobile/walkguide_app/lib/app/router.dart

@@ -2,8 +2,33 @@ import 'package:go_router/go_router.dart';
 
 import '../core/constants/app_constants.dart';
 import '../features/activity_log/activity_log_screen.dart' as activity;
+import '../features/ai_benchmark/ai_benchmark_screen.dart' as benchmark;
+import '../features/auth/login_screen.dart' as auth_login;
+import '../features/auth/register_screen.dart' as auth_register;
+import '../features/auth/splash_screen.dart' as auth_splash;
+import '../features/call/call_screen.dart' as call;
+import '../features/guardian_dashboard/guardian_activity_log_screen.dart'
+    as guardian_logs;
+import '../features/guardian_dashboard/guardian_ai_config_screen.dart'
+    as guardian_ai;
+import '../features/guardian_dashboard/guardian_map_screen.dart'
+    as guardian_map;
+import '../features/guardian_dashboard/guardian_send_notification_screen.dart'
+    as guardian_send;
+import '../features/guardian_dashboard/guardian_settings_screen.dart'
+    as guardian_settings;
+import '../features/guardian_dashboard/guardian_tools_screen.dart'
+    as guardian_tools;
+import '../features/home/presentation/guardian_dashboard_screen.dart'
+    as guardian_home;
+import '../features/navigation_mode/navigation_mode_screen.dart' as nav;
 import '../features/notifications/notification_screen.dart' as notifications;
-import '../features/screens.dart';
+import '../features/pairing/pairing_screens.dart' as pairing;
+import '../features/server_connect/server_connect_server.dart'
+    as server_connect;
+import '../features/settings/user_settings_screen.dart' as user_settings;
+import '../features/sos/sos_screen.dart' as sos;
+import '../features/walk_guide/walk_guide_screen.dart' as walk_guide;
 import '../shared/widgets/app_shells.dart';
 
 final GoRouter appRouter = GoRouter(
@@ -25,19 +50,23 @@ final GoRouter appRouter = GoRouter(
   routes: [
     GoRoute(
         path: '/server-connect',
-        builder: (_, __) => const ServerConnectScreen()),
+        builder: (_, __) => const server_connect.ServerConnectScreen()),
-    GoRoute(path: '/splash', builder: (_, __) => const SplashScreen()),
-    GoRoute(path: '/login', builder: (_, __) => const LoginScreen()),
-    GoRoute(path: '/register', builder: (_, __) => const RegisterScreen()),
     GoRoute(
-        path: '/incoming-call', builder: (_, __) => const IncomingCallScreen()),
+        path: '/splash', builder: (_, __) => const auth_splash.SplashScreen()),
+    GoRoute(path: '/login', builder: (_, __) => const auth_login.LoginScreen()),
+    GoRoute(
+        path: '/register',
+        builder: (_, __) => const auth_register.RegisterScreen()),
+    GoRoute(
+        path: '/incoming-call',
+        builder: (_, __) => const call.IncomingCallScreen()),
     ShellRoute(
       builder: (_, __, child) => UserShell(child: child),
       routes: [
         GoRoute(
             path: '/user/walkguide',
-            builder: (_, __) => const WalkGuideScreen()),
+            builder: (_, __) => const walk_guide.WalkGuideScreen()),
-        GoRoute(path: '/user/sos', builder: (_, __) => const SosScreen()),
+        GoRoute(path: '/user/sos', builder: (_, __) => const sos.SosScreen()),
         GoRoute(
             path: '/user/activity',
             builder: (_, __) => const activity.ActivityLogScreen()),
@@ -46,17 +75,18 @@ final GoRouter appRouter = GoRouter(
             builder: (_, __) => const notifications.NotificationScreen()),
         GoRoute(
             path: '/user/navigation',
-            builder: (_, __) => const NavigationModeScreen()),
+            builder: (_, __) => const nav.NavigationModeScreen()),
         GoRoute(
             path: '/user/settings',
-            builder: (_, __) => const UserSettingsScreen()),
+            builder: (_, __) => const user_settings.UserSettingsScreen()),
         GoRoute(
             path: '/user/pairing',
-            builder: (_, __) => const UserPairingScreen()),
+            builder: (_, __) => const pairing.UserPairingScreen()),
-        GoRoute(path: '/user/call', builder: (_, __) => const CallScreen()),
+        GoRoute(
+            path: '/user/call', builder: (_, __) => const call.CallScreen()),
         GoRoute(
             path: '/user/benchmark',
-            builder: (_, __) => const AiBenchmarkScreen()),
+            builder: (_, __) => const benchmark.AiBenchmarkScreen()),
       ],
     ),
     ShellRoute(
@@ -64,37 +94,39 @@ final GoRouter appRouter = GoRouter(
       routes: [
         GoRoute(
             path: '/guardian/dashboard',
-            builder: (_, __) => const GuardianDashboardScreen()),
+            builder: (_, __) => const guardian_home.GuardianDashboardScreen()),
         GoRoute(
             path: '/guardian/map',
-            builder: (_, __) => const GuardianMapScreen()),
+            builder: (_, __) => const guardian_map.GuardianMapScreen()),
         GoRoute(
             path: '/guardian/logs',
-            builder: (_, __) => const GuardianActivityLogScreen()),
+            builder: (_, __) =>
+                const guardian_logs.GuardianActivityLogScreen()),
         GoRoute(
             path: '/guardian/send-notif',
-            builder: (_, __) => const GuardianSendNotifScreen()),
+            builder: (_, __) => const guardian_send.GuardianSendNotifScreen()),
         GoRoute(
             path: '/guardian/ai-config',
-            builder: (_, __) => const GuardianAiConfigScreen()),
+            builder: (_, __) => const guardian_ai.GuardianAiConfigScreen()),
         GoRoute(
             path: '/guardian/voice-cmd',
-            builder: (_, __) => const GuardianVoiceCmdScreen()),
+            builder: (_, __) => const guardian_tools.GuardianVoiceCmdScreen()),
         GoRoute(
             path: '/guardian/shortcuts',
-            builder: (_, __) => const GuardianShortcutScreen()),
+            builder: (_, __) => const guardian_tools.GuardianShortcutScreen()),
         GoRoute(
             path: '/guardian/geofence',
-            builder: (_, __) => const GuardianGeofenceScreen()),
+            builder: (_, __) => const guardian_tools.GuardianGeofenceScreen()),
         GoRoute(
             path: '/guardian/pairing',
-            builder: (_, __) => const GuardianPairingScreen()),
+            builder: (_, __) => const pairing.GuardianPairingScreen()),
         GoRoute(
             path: '/guardian/settings',
-            builder: (_, __) => const GuardianSettingsScreen()),
+            builder: (_, __) =>
+                const guardian_settings.GuardianSettingsScreen()),
         GoRoute(
             path: '/guardian/benchmark',
-            builder: (_, __) => const AiBenchmarkScreen()),
+            builder: (_, __) => const benchmark.AiBenchmarkScreen()),
       ],
     ),
   ],

walkguide-mobile/walkguide_app/lib/core/ai/obstacle_analyzer.dart

@@ -23,12 +23,14 @@ class DetectionResult {
   final double confidence;
   final ObstacleDirection direction;
   final String estimatedDistance;
+  final BoundingBox? box;
 
   const DetectionResult({
     required this.label,
     required this.confidence,
     required this.direction,
     required this.estimatedDistance,
+    this.box,
   });
 
   String get directionName => direction.name.toUpperCase();
@@ -39,7 +41,7 @@ class DetectionResult {
       ObstacleDirection.center => 'tengah',
       ObstacleDirection.right => 'kanan',
     };
-    return 'Hati-hati, $label di $area. Jarak $estimatedDistance.';
+    return 'Hati-hati, ${ObstacleAnalyzer.spokenLabel(label)} di $area. Jarak $estimatedDistance.';
   }
 }
 
@@ -68,7 +70,7 @@ class ObstacleAnalyzer {
       ObstacleDirection.center => 'depan',
       ObstacleDirection.right => 'kanan',
     };
-    return 'Hati-hati, ${result.label} di $directionLabel. '
+    return 'Hati-hati, ${spokenLabel(result.label)} di $directionLabel. '
         'Jarak ${result.estimatedDistance}.';
   }
 
@@ -90,7 +92,12 @@ class ObstacleAnalyzer {
       final bi = order.indexOf(b.estimatedDistance);
       final aRank = ai == -1 ? order.length : ai;
       final bRank = bi == -1 ? order.length : bi;
-      return aRank.compareTo(bRank);
+      final distanceCompare = aRank.compareTo(bRank);
+      if (distanceCompare != 0) return distanceCompare;
+      final directionCompare =
+          _directionRisk(a.direction).compareTo(_directionRisk(b.direction));
+      if (directionCompare != 0) return directionCompare;
+      return b.confidence.compareTo(a.confidence);
     });
     return sorted.first;
   }
@@ -102,15 +109,43 @@ class ObstacleAnalyzer {
     return detections.where((d) => d.confidence >= threshold).toList();
   }
 
-  DetectionResult analyzeFallback({
+  int _directionRisk(ObstacleDirection direction) {
-    String label = 'person',
+    return switch (direction) {
-    double confidence = 0.86,
+      ObstacleDirection.center => 0,
-  }) {
+      ObstacleDirection.left => 1,
-    return DetectionResult(
+      ObstacleDirection.right => 1,
-      label: label,
+    };
-      confidence: confidence,
+  }
-      direction: ObstacleDirection.center,
+
-      estimatedDistance: 'Close (1-2m)',
+  static String spokenLabel(String label) {
-    );
+    return switch (label.toLowerCase()) {
+      'person' => 'orang',
+      'bicycle' => 'sepeda',
+      'car' => 'mobil',
+      'motorcycle' => 'motor',
+      'airplane' => 'pesawat',
+      'bus' => 'bus',
+      'train' => 'kereta',
+      'truck' => 'truk',
+      'boat' => 'perahu',
+      'traffic light' => 'lampu lalu lintas',
+      'fire hydrant' => 'hidran',
+      'stop sign' => 'rambu berhenti',
+      'parking meter' => 'meter parkir',
+      'bench' => 'bangku',
+      'chair' => 'kursi',
+      'couch' => 'sofa',
+      'potted plant' => 'pot tanaman',
+      'dining table' => 'meja',
+      'tv' => 'televisi',
+      'backpack' => 'tas',
+      'umbrella' => 'payung',
+      'handbag' => 'tas tangan',
+      'suitcase' => 'koper',
+      'skateboard' => 'papan skate',
+      'surfboard' => 'papan selancar',
+      'sports ball' => 'bola',
+      _ => label,
+    };
   }
 }

walkguide-mobile/walkguide_app/lib/core/ai/yolo_detector.dart

@@ -18,11 +18,31 @@ class YoloDetector {
   YoloTensorType? _outputType;
   bool _ready = false;
   String? _lastError;
+  int _lastDecodedCount = 0;
+  int _lastConfidenceCount = 0;
+  int _lastObstacleCount = 0;
+  int _lastKeptCount = 0;
+  int _lastInferenceMs = 0;
+  String? _lastBestLabel;
+  double? _lastBestConfidence;
 
   YoloDetector(this._analyzer);
 
   bool get isReady => _ready && _runtime != null;
   String? get lastError => _lastError;
+  String get diagnosticsSummary {
+    if (!isReady) {
+      return _lastError == null
+          ? 'YOLO runtime belum aktif'
+          : 'YOLO runtime error: $_lastError';
+    }
+    final bestLabel = _lastBestLabel;
+    final bestConfidence = _lastBestConfidence;
+    final bestText = bestLabel == null || bestConfidence == null
+        ? 'best: none'
+        : 'best: $bestLabel ${(bestConfidence * 100).toStringAsFixed(0)}%';
+    return 'frames ok, decoded $_lastDecodedCount, >=threshold $_lastConfidenceCount, obstacle $_lastObstacleCount, kept $_lastKeptCount, $bestText, ${_lastInferenceMs}ms';
+  }
 
   Future<void> init() async {
     dispose();
@@ -47,55 +67,64 @@ class YoloDetector {
       _ready = true;
     } catch (e) {
       _lastError = e.toString();
-      debugPrint('YOLO fallback mode: $e');
+      debugPrint('YOLO runtime initialization skipped: $e');
       _ready = false;
     }
   }
 
   Future<DetectionResult?> detect(
     CameraImage image, {
-    double confidenceThreshold = 0.45,
+    double confidenceThreshold = 0.25,
   }) async {
-    if (!isReady) return detectFallback();
+    if (!isReady) return null;
     try {
+      final stopwatch = Stopwatch()..start();
       final input = _buildCameraInput(image);
       final output = Uint8List(_runtime!.outputByteLength);
       _runtime!.run(input, output);
       final detections = _decodeDetections(output);
+      _recordDecoded(detections);
       final filtered =
           _analyzer.filterByConfidence(detections, confidenceThreshold);
-      return _analyzer.prioritize(filtered);
+      final kept = _nonMaxSuppression(filtered);
+      _lastInferenceMs = stopwatch.elapsedMilliseconds;
+      _lastConfidenceCount = filtered.length;
+      _lastObstacleCount =
+          filtered.where((d) => _isObstacleLabel(d.label)).length;
+      _lastKeptCount = kept.length;
+      return _analyzer.prioritize(kept);
     } catch (e) {
       _lastError = e.toString();
-      debugPrint('YOLO inference fallback: $e');
+      debugPrint('YOLO inference skipped: $e');
-      return detectFallback();
+      return null;
     }
   }
 
   Future<DetectionResult?> detectSynthetic({
     double confidenceThreshold = 0.25,
   }) async {
-    if (!isReady) return detectFallback();
+    if (!isReady) return null;
     try {
       final input = _buildSyntheticInput();
       final output = Uint8List(_runtime!.outputByteLength);
       _runtime!.run(input, output);
       final detections = _decodeDetections(output);
+      _recordDecoded(detections);
       final filtered =
           _analyzer.filterByConfidence(detections, confidenceThreshold);
-      return _analyzer.prioritize(filtered) ?? detectFallback();
+      final kept = _nonMaxSuppression(filtered);
+      _lastConfidenceCount = filtered.length;
+      _lastObstacleCount =
+          filtered.where((d) => _isObstacleLabel(d.label)).length;
+      _lastKeptCount = kept.length;
+      return _analyzer.prioritize(kept);
     } catch (e) {
       _lastError = e.toString();
-      debugPrint('YOLO synthetic fallback: $e');
+      debugPrint('YOLO synthetic skipped: $e');
-      return detectFallback();
+      return null;
     }
   }
 
-  Future<DetectionResult?> detectFallback() async {
-    final label = _labels.isNotEmpty ? _labels.first : 'person';
-    return _analyzer.analyzeFallback(label: label);
-  }
-
   void dispose() {
     _runtime?.close();
     _runtime = null;
@@ -104,6 +133,26 @@ class YoloDetector {
     _inputType = null;
     _outputType = null;
     _ready = false;
+    _lastDecodedCount = 0;
+    _lastConfidenceCount = 0;
+    _lastObstacleCount = 0;
+    _lastKeptCount = 0;
+    _lastInferenceMs = 0;
+    _lastBestLabel = null;
+    _lastBestConfidence = null;
+  }
+
+  void _recordDecoded(List<DetectionResult> detections) {
+    _lastDecodedCount = detections.length;
+    _lastBestLabel = null;
+    _lastBestConfidence = null;
+    for (final detection in detections) {
+      if (_lastBestConfidence == null ||
+          detection.confidence > _lastBestConfidence!) {
+        _lastBestLabel = detection.label;
+        _lastBestConfidence = detection.confidence;
+      }
+    }
   }
 
   Uint8List _buildCameraInput(CameraImage image) {
@@ -292,7 +341,7 @@ class YoloDetector {
     }
     if (type == YoloTensorType.float16) {
       // Most exported YOLOv8 TFLite files use float32 output. Float16 is rare;
-      // fallback keeps the app usable if an unsupported variant is selected.
+      // Keep preprocessing explicit if an unsupported variant is selected.
       throw StateError('Float16 YOLO output is not supported yet');
     }
     throw StateError('Unsupported YOLO output type: $type');
@@ -484,19 +533,164 @@ class YoloDetector {
       confidence: confidence,
       direction: _analyzer.analyzeDirection(box),
       estimatedDistance: _analyzer.estimateDistance(box),
+      box: box,
     );
   }
+
+  List<DetectionResult> _nonMaxSuppression(
+    List<DetectionResult> detections, {
+    double iouThreshold = 0.45,
+    int maxDetections = 8,
+  }) {
+    final candidates = detections
+        .where((d) => d.box != null && _isObstacleLabel(d.label))
+        .toList()
+      ..sort((a, b) => b.confidence.compareTo(a.confidence));
+    final selected = <DetectionResult>[];
+
+    for (final detection in candidates) {
+      final box = detection.box;
+      if (box == null) continue;
+      final overlaps = selected.any((kept) =>
+          kept.label == detection.label &&
+          kept.box != null &&
+          _iou(box, kept.box!) > iouThreshold);
+      if (overlaps) continue;
+      selected.add(detection);
+      if (selected.length >= maxDetections) break;
+    }
+
+    return selected;
+  }
+
+  bool _isObstacleLabel(String label) {
+    return _walkGuideObstacleLabels.contains(label.toLowerCase());
+  }
+
+  double _iou(BoundingBox a, BoundingBox b) {
+    final left = math.max(a.left, b.left);
+    final top = math.max(a.top, b.top);
+    final right = math.min(a.right, b.right);
+    final bottom = math.min(a.bottom, b.bottom);
+    final width = math.max(0.0, right - left);
+    final height = math.max(0.0, bottom - top);
+    final intersection = width * height;
+    final union = a.width * a.height + b.width * b.height - intersection;
+    if (union <= 0) return 0;
+    return intersection / union;
+  }
 }
 
+const Set<String> _walkGuideObstacleLabels = {
+  'person',
+  'bicycle',
+  'car',
+  'motorcycle',
+  'bus',
+  'train',
+  'truck',
+  'traffic light',
+  'fire hydrant',
+  'stop sign',
+  'parking meter',
+  'bench',
+  'backpack',
+  'umbrella',
+  'handbag',
+  'suitcase',
+  'chair',
+  'couch',
+  'potted plant',
+  'dining table',
+  'tv',
+  'laptop',
+  'cell phone',
+  'bottle',
+  'cup',
+  'book',
+};
+
 const Map<int, String> _cocoObstacleLabels = {
   0: 'person',
   1: 'bicycle',
   2: 'car',
   3: 'motorcycle',
+  4: 'airplane',
   5: 'bus',
+  6: 'train',
   7: 'truck',
+  8: 'boat',
+  9: 'traffic light',
+  10: 'fire hydrant',
+  11: 'stop sign',
+  12: 'parking meter',
   13: 'bench',
+  14: 'bird',
+  15: 'cat',
+  16: 'dog',
+  17: 'horse',
+  18: 'sheep',
+  19: 'cow',
+  20: 'elephant',
+  21: 'bear',
+  22: 'zebra',
+  23: 'giraffe',
+  24: 'backpack',
+  25: 'umbrella',
+  26: 'handbag',
+  27: 'tie',
+  28: 'suitcase',
+  29: 'frisbee',
+  30: 'skis',
+  31: 'snowboard',
+  32: 'sports ball',
+  33: 'kite',
+  34: 'baseball bat',
+  35: 'baseball glove',
+  36: 'skateboard',
+  37: 'surfboard',
+  38: 'tennis racket',
+  39: 'bottle',
+  40: 'wine glass',
+  41: 'cup',
+  42: 'fork',
+  43: 'knife',
+  44: 'spoon',
+  45: 'bowl',
+  46: 'banana',
+  47: 'apple',
+  48: 'sandwich',
+  49: 'orange',
+  50: 'broccoli',
+  51: 'carrot',
+  52: 'hot dog',
+  53: 'pizza',
+  54: 'donut',
+  55: 'cake',
   56: 'chair',
+  57: 'couch',
+  58: 'potted plant',
+  59: 'bed',
+  60: 'dining table',
+  61: 'toilet',
+  62: 'tv',
+  63: 'laptop',
+  64: 'mouse',
+  65: 'remote',
+  66: 'keyboard',
+  67: 'cell phone',
+  68: 'microwave',
+  69: 'oven',
+  70: 'toaster',
+  71: 'sink',
+  72: 'refrigerator',
+  73: 'book',
+  74: 'clock',
+  75: 'vase',
+  76: 'scissors',
+  77: 'teddy bear',
+  78: 'hair drier',
+  79: 'toothbrush',
 };
 
 class _InputInfo {

walkguide-mobile/walkguide_app/lib/core/api_service.dart

@@ -1,21 +1,14 @@
 import 'package:dio/dio.dart';
-import 'package:flutter/foundation.dart'; // Wajib import ini
 
 class ApiService {
-  static String get baseUrl {
+  static const baseUrl = String.fromEnvironment(
-    if (kIsWeb) {
+    'WALKGUIDE_API_BASE_URL',
-      // Jika di Chrome/Web, tembak localhost langsung
+    defaultValue: 'http://202.46.28.160:8080/api/v1',
-      return 'http://localhost:8080/api';
+  );
-    } else {
-      // Jika di Emulator Android, tembak IP khusus 10.0.2.2
-      return 'http://10.0.2.2:8080/api';
-    }
-  }
 
   final Dio _dio = Dio(BaseOptions(
     baseUrl: baseUrl,
     connectTimeout: const Duration(seconds: 5),
-    // Penting buat Web agar tidak kena error CORS di sisi Client
     headers: {
       'Content-Type': 'application/json',
       'Accept': 'application/json',

walkguide-mobile/walkguide_app/lib/core/errors/friendly_error.dart

@@ -0,0 +1,113 @@
+import 'package:dio/dio.dart';
+
+String friendlyErrorMessage(
+  Object error, {
+  required String fallback,
+  String? connectionHint,
+}) {
+  if (error is DioException) {
+    return friendlyDioMessage(
+      error,
+      fallback: fallback,
+      connectionHint: connectionHint,
+    );
+  }
+  return fallback;
+}
+
+String friendlyDioMessage(
+  DioException error, {
+  required String fallback,
+  String? connectionHint,
+}) {
+  final backendMessage = _cleanBackendMessage(error.response?.data);
+  if (backendMessage != null) return backendMessage;
+
+  final status = error.response?.statusCode;
+  if (status == 401) return 'Sesi sudah habis atau data login salah.';
+  if (status == 403) return 'Akun kamu belum punya akses ke fitur ini.';
+  if (status == 404) return 'Data belum ditemukan.';
+  if (status == 409) return 'Data sudah dipakai. Coba gunakan data lain.';
+  if (status != null && status >= 500) {
+    return 'Server sedang bermasalah. Coba lagi sebentar.';
+  }
+
+  if (error.type == DioExceptionType.connectionTimeout ||
+      error.type == DioExceptionType.sendTimeout ||
+      error.type == DioExceptionType.receiveTimeout) {
+    return 'Server terlalu lama merespons. Coba lagi.';
+  }
+  if (error.type == DioExceptionType.connectionError) {
+    return connectionHint ?? 'Tidak bisa terhubung ke server.';
+  }
+  return fallback;
+}
+
+String? _cleanBackendMessage(Object? data) {
+  Object? raw;
+  if (data is Map) {
+    raw = data['message'] ?? data['error'] ?? data['errorCode'];
+  } else if (data is String) {
+    raw = data;
+  }
+  final message = raw?.toString().trim();
+  if (message == null || message.isEmpty || _looksTechnical(message)) {
+    return null;
+  }
+  return message;
+}
+
+bool _looksTechnical(String message) {
+  final lower = message.toLowerCase();
+  const blocked = [
+    'exception',
+    'dioexception',
+    'typeerror',
+    'stacktrace',
+    'instance of',
+    '_jsonmap',
+    'socketexception',
+    'package:',
+    'null check operator',
+    'nosuchmethod',
+    'formatexception',
+  ];
+  return blocked.any(lower.contains);
+}
+
+Future<T?> runFriendly<T>(
+  Future<T?> Function() action, {
+  required void Function(String message) onError,
+  required String fallback,
+  String? connectionHint,
+}) async {
+  try {
+    return await action();
+  } catch (error) {
+    onError(friendlyErrorMessage(
+      error,
+      fallback: fallback,
+      connectionHint: connectionHint,
+    ));
+    return null;
+  }
+}
+
+Future<bool> runFriendlyAction(
+  Future<void> Function() action, {
+  required void Function(String message) onError,
+  required String fallback,
+  String? connectionHint,
+}) async {
+  try {
+    await action();
+    return true;
+  } catch (error) {
+    onError(friendlyErrorMessage(
+      error,
+      fallback: fallback,
+      connectionHint: connectionHint,
+    ));
+    return false;
+  }
+}

walkguide-mobile/walkguide_app/lib/core/services/websocket_service.dart

@@ -37,7 +37,7 @@ class WebSocketService {
   bool get isConnected => _connected;
 
   /// Connect ke WebSocket server.
-  /// Dipanggil setelah login berhasil (dari screens.dart _startPostLoginServices).
+  /// Dipanggil setelah login berhasil untuk membuka channel realtime.
   Future<void> connect(String serverUrl) async {
     await disconnect();
 

walkguide-mobile/walkguide_app/lib/features/activity_log/activity_log_screen.dart

@@ -5,6 +5,7 @@ import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/theme/app_colors.dart';
 
@@ -44,7 +45,8 @@ class _ActivityLogScreenState extends State<ActivityLogScreen> {
       _loading = true;
       _error = null;
     });
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await _api
             .get('/user/activity-logs')
             .timeout(const Duration(seconds: 10));
@@ -54,17 +56,12 @@ class _ActivityLogScreenState extends State<ActivityLogScreen> {
           _items = items;
           _applyFilter(_selectedFilter);
         });
-    } on DioException catch (e) {
+      },
-      setState(() {
+      onError: (message) => setState(() => _error = message),
-        _error = e.response?.data?['message']?.toString() ??
+      fallback: 'Gagal memuat activity log. Coba refresh lagi.',
-            'Gagal memuat activity log.';
+    );
-      });
-    } catch (e) {
-      setState(() => _error = 'Timeout / error: $e');
-    } finally {
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   List<Map<String, dynamic>> _extractList(dynamic responseBody) {
     final data = responseBody is Map ? responseBody['data'] : null;

walkguide-mobile/walkguide_app/lib/features/ai_benchmark/ai_benchmark_screen.dart

@@ -0,0 +1,290 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:camera/camera.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../../app/injection_container.dart';
+import '../../core/ai/detection_export.dart';
+import '../../core/constants/app_constants.dart';
+import '../../core/services/tts_service.dart';
+import '../../shared/widgets/feature_page.dart';
+
+class AiBenchmarkScreen extends StatefulWidget {
+  const AiBenchmarkScreen({super.key});
+
+  @override
+  State<AiBenchmarkScreen> createState() => _AiBenchmarkScreenState();
+}
+
+class _AiBenchmarkScreenState extends State<AiBenchmarkScreen> {
+  static const _runsKey = 'ai_benchmark_runs';
+  List<String> _models = const [];
+  String _selectedModel = AppConstants.yoloModelPath;
+  List<Map<String, dynamic>> _runs = const [];
+  bool _running = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _load();
+  }
+
+  Future<void> _load() async {
+    final models = await _discoverTfliteModels();
+    final selected = await AppConstants.getSelectedYoloModelPath();
+    final prefs = await SharedPreferences.getInstance();
+    final rawRuns = prefs.getStringList(_runsKey) ?? const [];
+    setState(() {
+      _models = models.isEmpty ? [selected] : models;
+      _selectedModel = _models.contains(selected) ? selected : _models.first;
+      _runs = rawRuns
+          .map((e) => Map<String, dynamic>.from(jsonDecode(e) as Map))
+          .toList()
+          .reversed
+          .toList();
+    });
+  }
+
+  Future<void> _setModel(String? value) async {
+    if (value == null) return;
+    await AppConstants.setSelectedYoloModelPath(value);
+    sl<YoloDetector>().dispose();
+    await sl<YoloDetector>().init();
+    setState(() => _selectedModel = value);
+    _snack('Model aktif: ${value.split('/').last}');
+  }
+
+  Future<void> _runBenchmark() async {
+    setState(() => _running = true);
+    final started = DateTime.now();
+    final captureMs = await _measureCapture();
+
+    final inferenceWatch = Stopwatch()..start();
+    final modelLoaded = sl<YoloDetector>().isReady;
+    final detection = await sl<YoloDetector>().detectSynthetic();
+    inferenceWatch.stop();
+
+    final label = detection?.label ?? 'no detection';
+    final direction = detection?.directionName ?? '-';
+    final distance = detection?.estimatedDistance ?? '-';
+    final text = detection == null
+        ? 'Tidak ada obstacle di atas threshold.'
+        : 'Obstacle $label di $direction, jarak $distance';
+
+    final notifWatch = Stopwatch()..start();
+    final notificationText = text;
+    notifWatch.stop();
+
+    final ttsWatch = Stopwatch()..start();
+    try {
+      await sl<TtsService>()
+          .speakImmediate(notificationText)
+          .timeout(const Duration(seconds: 3));
+    } catch (_) {}
+    ttsWatch.stop();
+
+    final run = {
+      'time': started.toIso8601String(),
+      'model': _selectedModel,
+      'modelLoaded': modelLoaded,
+      'captureMs': captureMs,
+      'inferenceMs': inferenceWatch.elapsedMilliseconds,
+      'notificationMs': notifWatch.elapsedMicroseconds / 1000,
+      'ttsMs': ttsWatch.elapsedMilliseconds,
+      'label': label,
+      'direction': direction,
+    };
+    final prefs = await SharedPreferences.getInstance();
+    final next = [
+      jsonEncode(run),
+      ...((prefs.getStringList(_runsKey) ?? const []).take(24)),
+    ];
+    await prefs.setStringList(_runsKey, next);
+    if (!mounted) return;
+    setState(() {
+      _runs = [run, ..._runs].take(25).toList();
+      _running = false;
+    });
+  }
+
+  Future<int> _measureCapture() async {
+    final watch = Stopwatch()..start();
+    CameraController? controller;
+    try {
+      final cameras =
+          await availableCameras().timeout(const Duration(seconds: 3));
+      if (cameras.isNotEmpty) {
+        controller = CameraController(
+          cameras.first,
+          ResolutionPreset.low,
+          enableAudio: false,
+        );
+        await controller.initialize().timeout(const Duration(seconds: 5));
+        await controller.takePicture().timeout(const Duration(seconds: 5));
+      }
+    } catch (_) {
+      await Future<void>.delayed(const Duration(milliseconds: 16));
+    } finally {
+      await controller?.dispose();
+    }
+    watch.stop();
+    return watch.elapsedMilliseconds;
+  }
+
+  Future<void> _clearRuns() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_runsKey);
+    setState(() => _runs = const []);
+  }
+
+  void _snack(String message) {
+    if (!mounted) return;
+    ScaffoldMessenger.of(context)
+        .showSnackBar(SnackBar(content: Text(message)));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final hasRealModel = _models.any((model) => model.endsWith('.tflite'));
+    return FeaturePage(
+      title: 'AI Benchmark',
+      subtitle: 'Capture, inference, notification text, and TTS timing',
+      child: ListView(
+        children: [
+          DropdownButtonFormField<String>(
+            initialValue: _selectedModel,
+            decoration: const InputDecoration(labelText: 'Model file'),
+            items: [
+              for (final model in _models)
+                DropdownMenuItem(
+                  value: model,
+                  child: Text(model.split('/').last),
+                ),
+            ],
+            onChanged: _setModel,
+          ),
+          if (!hasRealModel) ...[
+            const SizedBox(height: 10),
+            const _StatusBox(
+              success: false,
+              message:
+                  'Belum ada file .tflite di assets/models. Tambahkan model lalu restart app.',
+            ),
+          ],
+          const SizedBox(height: 12),
+          FilledButton.icon(
+            onPressed: _running ? null : _runBenchmark,
+            icon: _running
+                ? const SizedBox(
+                    width: 18,
+                    height: 18,
+                    child: CircularProgressIndicator(strokeWidth: 2),
+                  )
+                : const Icon(Icons.play_arrow),
+            label: Text(_running ? 'Running benchmark...' : 'Run benchmark'),
+          ),
+          const SizedBox(height: 8),
+          OutlinedButton.icon(
+            onPressed: _clearRuns,
+            icon: const Icon(Icons.delete_outline),
+            label: const Text('Clear log'),
+          ),
+          const SizedBox(height: 16),
+          for (final run in _runs) _BenchmarkCard(run: run),
+          if (_runs.isEmpty)
+            const FeatureEmptyPanel(
+              icon: Icons.speed,
+              title: 'Belum ada log',
+              message:
+                  'Klik Run benchmark untuk mencatat capture, inference, notification, dan TTS.',
+            ),
+        ],
+      ),
+    );
+  }
+}
+
+class _BenchmarkCard extends StatelessWidget {
+  final Map<String, dynamic> run;
+
+  const _BenchmarkCard({required this.run});
+
+  @override
+  Widget build(BuildContext context) {
+    final time = DateTime.tryParse(run['time']?.toString() ?? '')?.toLocal();
+    return Container(
+      margin: const EdgeInsets.only(bottom: 10),
+      padding: const EdgeInsets.all(14),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16),
+        border: Border.all(color: const Color(0xFFE2E8F0)),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(
+            time == null
+                ? 'Benchmark run'
+                : '${_two(time.hour)}:${_two(time.minute)}:${_two(time.second)}',
+            style: const TextStyle(fontWeight: FontWeight.w800),
+          ),
+          const SizedBox(height: 8),
+          Text(
+              'Model: ${run['model'].toString().split('/').last} (${run['modelLoaded'] == true ? 'loaded' : 'not ready'})'),
+          Text('Capture: ${run['captureMs']} ms'),
+          Text('Model/inference: ${run['inferenceMs']} ms'),
+          Text('Notification text: ${run['notificationMs']} ms'),
+          Text('TTS start: ${run['ttsMs']} ms'),
+          Text('Result: ${run['label']} ${run['direction']}'),
+        ],
+      ),
+    );
+  }
+}
+
+class _StatusBox extends StatelessWidget {
+  final bool success;
+  final String message;
+
+  const _StatusBox({required this.success, required this.message});
+
+  @override
+  Widget build(BuildContext context) {
+    return DecoratedBox(
+      decoration: BoxDecoration(
+        color: success ? const Color(0xFFF0FDF4) : const Color(0xFFFEF2F2),
+        borderRadius: BorderRadius.circular(14),
+      ),
+      child: Padding(
+        padding: const EdgeInsets.all(12),
+        child: Text(
+          message,
+          style: TextStyle(
+            color: success ? const Color(0xFF166534) : const Color(0xFF991B1B),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+Future<List<String>> _discoverTfliteModels() async {
+  try {
+    final manifestRaw = await rootBundle.loadString('AssetManifest.json');
+    final manifest = jsonDecode(manifestRaw) as Map<String, dynamic>;
+    final models = manifest.keys
+        .where((key) =>
+            key.startsWith('assets/models/') && key.endsWith('.tflite'))
+        .toList()
+      ..sort();
+    return models;
+  } catch (_) {
+    return const [];
+  }
+}
+
+String _two(int value) => value.toString().padLeft(2, '0');

walkguide-mobile/walkguide_app/lib/features/auth/data/auth_repository_impl.dart

@@ -12,7 +12,8 @@ class AuthRepositoryImpl implements AuthRepository {
   AuthRepositoryImpl(this.remoteDataSource, this.secureStorage);
 
   @override
-  Future<Either<Failure, UserEntity>> login(String email, String password) async {
+  Future<Either<Failure, UserEntity>> login(
+      String email, String password) async {
     try {
       // 1. Suruh data source nembak API
       final userModel = await remoteDataSource.login(email, password);
@@ -24,7 +25,21 @@ class AuthRepositoryImpl implements AuthRepository {
       return Right(userModel);
     } catch (e) {
       // 4. Balikin pesan error (Left)
-      return Left(ServerFailure(e.toString().replaceAll('Exception: ', '')));
+      return Left(ServerFailure(_safeAuthFailure(e)));
     }
   }
 }
+
+String _safeAuthFailure(Object error) {
+  final message = error.toString().replaceFirst(RegExp(r'^\w+:\s*'), '').trim();
+  final lower = message.toLowerCase();
+  final technical = lower.contains('exception') ||
+      lower.contains('typeerror') ||
+      lower.contains('stacktrace') ||
+      lower.contains('instance of') ||
+      lower.contains('package:');
+  if (message.isEmpty || technical) {
+    return 'Login gagal. Periksa email dan password kamu.';
+  }
+  return message;
+}

walkguide-mobile/walkguide_app/lib/features/auth/login_screen.dart

@@ -2,7 +2,6 @@
 
 import 'dart:async';
 
-import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:go_router/go_router.dart';
@@ -11,6 +10,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import '../../app/app_cubit.dart';
 import '../../app/injection_container.dart';
 import '../../core/constants/app_constants.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/services/offline_queue_service.dart';
 import '../../core/services/tts_service.dart';
@@ -65,27 +65,27 @@ class _LoginScreenState extends State<LoginScreen> {
       return;
     }
     setState(() => _loading = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await sl<ApiClient>().dio.post('/auth/login', data: {
           'email': _email.text.trim(),
           'password': _password.text,
         });
         await _saveAuthAndRoute(
             context, Map<String, dynamic>.from(res.data['data'] as Map));
-    } on DioException catch (e) {
+      },
-      _snack(context, _friendlyDioMessage(e, fallback: 'Login gagal'));
+      onError: (message) => _snack(context, message),
-    } catch (e) {
+      fallback: 'Login gagal. Periksa email dan password kamu.',
-      _snack(context, 'Login gagal: $e');
+      connectionHint: 'Tidak bisa ke server. Pakai URL backend publik/aktif.',
-    } finally {
+    );
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   @override
   Widget build(BuildContext context) {
     return _AuthFrame(
       title: 'Sign in',
-      subtitle: 'Masuk sebagai Guardian atau User.',
+      subtitle: 'Masuk ke navigasi asistif realtime WalkGuide.',
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
@@ -147,35 +147,123 @@ class _AuthFrame extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      body: Center(
+      backgroundColor: const Color(0xFFEAF4FF),
+      body: Stack(
+        children: [
+          const Positioned.fill(
+            child: DecoratedBox(
+              decoration: BoxDecoration(
+                gradient: LinearGradient(
+                  begin: Alignment.topLeft,
+                  end: Alignment.bottomRight,
+                  colors: [Color(0xFFD9EEFF), Color(0xFFF7FAFC)],
+                ),
+              ),
+            ),
+          ),
+          Positioned(
+            top: -90,
+            right: -60,
+            child: TweenAnimationBuilder<double>(
+              tween: Tween(begin: 0.85, end: 1),
+              duration: const Duration(milliseconds: 900),
+              curve: Curves.easeOutCubic,
+              builder: (_, value, child) => Transform.scale(
+                scale: value,
+                child: child,
+              ),
+              child: Container(
+                width: 260,
+                height: 260,
+                decoration: BoxDecoration(
+                  color: const Color(0xFF2563EB).withValues(alpha: 0.14),
+                  shape: BoxShape.circle,
+                ),
+              ),
+            ),
+          ),
+          Center(
             child: SingleChildScrollView(
               padding: const EdgeInsets.all(24),
               child: ConstrainedBox(
-            constraints: const BoxConstraints(maxWidth: 460),
+                constraints: const BoxConstraints(maxWidth: 430),
-            child: Card(
+                child: TweenAnimationBuilder<double>(
-              elevation: 0,
+                  tween: Tween(begin: 18, end: 0),
-              shape: RoundedRectangleBorder(
+                  duration: const Duration(milliseconds: 520),
-                  borderRadius: BorderRadius.circular(18),
+                  curve: Curves.easeOutCubic,
-                  side: const BorderSide(color: Color(0xFFE2E8F0))),
+                  builder: (_, offset, child) => Opacity(
+                    opacity: (1 - offset / 18).clamp(0.0, 1.0),
+                    child: Transform.translate(
+                      offset: Offset(0, offset),
+                      child: child,
+                    ),
+                  ),
+                  child: RepaintBoundary(
+                    child: Container(
+                      decoration: BoxDecoration(
+                        color: Colors.white.withValues(alpha: 0.96),
+                        borderRadius: BorderRadius.circular(30),
+                        border: Border.all(
+                            color: Colors.white.withValues(alpha: 0.8)),
+                        boxShadow: [
+                          BoxShadow(
+                            color:
+                                const Color(0xFF1E3A8A).withValues(alpha: 0.14),
+                            blurRadius: 40,
+                            offset: const Offset(0, 20),
+                          ),
+                        ],
+                      ),
                       child: Padding(
-                padding: const EdgeInsets.all(24),
+                        padding: const EdgeInsets.fromLTRB(24, 26, 24, 24),
                         child: Column(
                           crossAxisAlignment: CrossAxisAlignment.stretch,
                           children: [
-                    const Icon(Icons.navigation_rounded,
+                            Row(
-                        color: Color(0xFF1A56DB), size: 42),
+                              children: [
-                    const SizedBox(height: 14),
+                                Container(
-                    Text(title,
+                                  width: 56,
-                        textAlign: TextAlign.center,
+                                  height: 56,
+                                  decoration: BoxDecoration(
+                                    color: const Color(0xFF1D4ED8),
+                                    borderRadius: BorderRadius.circular(18),
+                                  ),
+                                  child: const Icon(Icons.navigation_rounded,
+                                      color: Colors.white, size: 30),
+                                ),
+                                const SizedBox(width: 12),
+                                const Expanded(
+                                  child: Text(
+                                    'WalkGuide',
+                                    style: TextStyle(
+                                      fontSize: 18,
+                                      fontWeight: FontWeight.w900,
+                                      color: Color(0xFF0F172A),
+                                    ),
+                                  ),
+                                ),
+                              ],
+                            ),
+                            const SizedBox(height: 22),
+                            Text(
+                              title,
                               style: Theme.of(context)
                                   .textTheme
-                            .headlineSmall
+                                  .headlineMedium
-                            ?.copyWith(fontWeight: FontWeight.w800)),
+                                  ?.copyWith(
-                    const SizedBox(height: 4),
+                                    fontWeight: FontWeight.w900,
-                    Text(subtitle,
+                                    color: const Color(0xFF0F172A),
-                        textAlign: TextAlign.center,
+                                  ),
-                        style: const TextStyle(color: Color(0xFF64748B))),
+                            ),
-                    const SizedBox(height: 22),
+                            const SizedBox(height: 6),
+                            Text(
+                              subtitle,
+                              style: const TextStyle(
+                                color: Color(0xFF64748B),
+                                height: 1.35,
+                              ),
+                            ),
+                            const SizedBox(height: 26),
                             child,
                           ],
                         ),
@@ -184,6 +272,10 @@ class _AuthFrame extends StatelessWidget {
                   ),
                 ),
               ),
+            ),
+          ),
+        ],
+      ),
     );
   }
 }
@@ -219,16 +311,14 @@ Future<void> _saveAuthAndRoute(
 
 void _startPostLoginServices(String serverUrl) {
   Future.microtask(() async {
-    try {
     await sl<WebSocketService>()
         .connect(serverUrl)
         .timeout(const Duration(seconds: 2));
     await sl<OfflineQueueService>()
         .syncPending(sl<ApiClient>())
         .timeout(const Duration(seconds: 3));
-    } catch (e) {
+  }).catchError((Object e) {
     debugPrint('Post-login services skipped: $e');
-    }
   });
 }
 
@@ -238,19 +328,3 @@ void _snack(BuildContext context, String message) {
         .showSnackBar(SnackBar(content: Text(message)));
   }
 }
-
-String _friendlyDioMessage(DioException e, {required String fallback}) {
-  final data = e.response?.data;
-  if (data is Map && data['message'] != null) return data['message'].toString();
-  if (e.response?.statusCode == 401) {
-    return 'Email atau password salah.';
-  }
-  if (e.type == DioExceptionType.connectionTimeout ||
-      e.type == DioExceptionType.receiveTimeout) {
-    return 'Server terlalu lama merespons. Pastikan backend masih running dan URL server benar.';
-  }
-  if (e.type == DioExceptionType.connectionError) {
-    return 'Tidak bisa ke server. Di Chrome pakai http://localhost:8080. Di HP pakai IP laptop/server, bukan localhost.';
-  }
-  return fallback;
-}

walkguide-mobile/walkguide_app/lib/features/auth/presentation/login_screen.dart

@@ -1 +1 @@
-export '../../screens.dart';
+export '../login_screen.dart';

walkguide-mobile/walkguide_app/lib/features/auth/register_screen.dart

@@ -1,11 +1,11 @@
 // ignore_for_file: use_build_context_synchronously
 
-import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 
 // ---------------------------------------------------------------------------
@@ -52,7 +52,8 @@ class _RegisterScreenState extends State<RegisterScreen> {
       return;
     }
     setState(() => _loading = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await sl<ApiClient>().dio.post('/auth/register', data: {
           'displayName': _name.text.trim(),
           'email': _email.text.trim(),
@@ -65,14 +66,13 @@ class _RegisterScreenState extends State<RegisterScreen> {
         await prefs.setString('pending_login_email', _email.text.trim());
         await _showRegisterSuccess(context, data);
         if (mounted) context.go('/login');
-    } on DioException catch (e) {
+      },
-      _snack(context, _friendlyDioMessage(e, fallback: 'Registrasi gagal'));
+      onError: (message) => _snack(context, message),
-    } catch (e) {
+      fallback: 'Registrasi gagal. Periksa data akun kamu.',
-      _snack(context, 'Registrasi gagal: $e');
+      connectionHint: 'Tidak bisa ke server. Pakai URL backend publik/aktif.',
-    } finally {
+    );
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   @override
   Widget build(BuildContext context) {
@@ -81,7 +81,7 @@ class _RegisterScreenState extends State<RegisterScreen> {
       subtitle: _step == 0
           ? 'Who are you in the WalkGuide system?'
           : _role == 'USER'
-              ? 'User akan mendapat Unique ID untuk pairing.'
+              ? 'User bisa membuat Pairing Code sementara setelah login.'
               : 'Guardian dapat monitor dan konfigurasi User.',
       child: _step == 0 ? _buildRoleStep(context) : _buildFormStep(context),
     );
@@ -298,35 +298,123 @@ class _AuthFrame extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      body: Center(
+      backgroundColor: const Color(0xFFEAF4FF),
+      body: Stack(
+        children: [
+          const Positioned.fill(
+            child: DecoratedBox(
+              decoration: BoxDecoration(
+                gradient: LinearGradient(
+                  begin: Alignment.topLeft,
+                  end: Alignment.bottomRight,
+                  colors: [Color(0xFFD9EEFF), Color(0xFFF7FAFC)],
+                ),
+              ),
+            ),
+          ),
+          Positioned(
+            top: -90,
+            right: -60,
+            child: TweenAnimationBuilder<double>(
+              tween: Tween(begin: 0.85, end: 1),
+              duration: const Duration(milliseconds: 900),
+              curve: Curves.easeOutCubic,
+              builder: (_, value, child) => Transform.scale(
+                scale: value,
+                child: child,
+              ),
+              child: Container(
+                width: 260,
+                height: 260,
+                decoration: BoxDecoration(
+                  color: const Color(0xFF2563EB).withValues(alpha: 0.14),
+                  shape: BoxShape.circle,
+                ),
+              ),
+            ),
+          ),
+          Center(
             child: SingleChildScrollView(
               padding: const EdgeInsets.all(24),
               child: ConstrainedBox(
-            constraints: const BoxConstraints(maxWidth: 460),
+                constraints: const BoxConstraints(maxWidth: 430),
-            child: Card(
+                child: TweenAnimationBuilder<double>(
-              elevation: 0,
+                  tween: Tween(begin: 18, end: 0),
-              shape: RoundedRectangleBorder(
+                  duration: const Duration(milliseconds: 520),
-                  borderRadius: BorderRadius.circular(18),
+                  curve: Curves.easeOutCubic,
-                  side: const BorderSide(color: Color(0xFFE2E8F0))),
+                  builder: (_, offset, child) => Opacity(
+                    opacity: (1 - offset / 18).clamp(0.0, 1.0),
+                    child: Transform.translate(
+                      offset: Offset(0, offset),
+                      child: child,
+                    ),
+                  ),
+                  child: RepaintBoundary(
+                    child: Container(
+                      decoration: BoxDecoration(
+                        color: Colors.white.withValues(alpha: 0.96),
+                        borderRadius: BorderRadius.circular(30),
+                        border: Border.all(
+                            color: Colors.white.withValues(alpha: 0.8)),
+                        boxShadow: [
+                          BoxShadow(
+                            color:
+                                const Color(0xFF1E3A8A).withValues(alpha: 0.14),
+                            blurRadius: 40,
+                            offset: const Offset(0, 20),
+                          ),
+                        ],
+                      ),
                       child: Padding(
-                padding: const EdgeInsets.all(24),
+                        padding: const EdgeInsets.fromLTRB(24, 26, 24, 24),
                         child: Column(
                           crossAxisAlignment: CrossAxisAlignment.stretch,
                           children: [
-                    const Icon(Icons.navigation_rounded,
+                            Row(
-                        color: Color(0xFF1A56DB), size: 42),
+                              children: [
-                    const SizedBox(height: 14),
+                                Container(
-                    Text(title,
+                                  width: 56,
-                        textAlign: TextAlign.center,
+                                  height: 56,
+                                  decoration: BoxDecoration(
+                                    color: const Color(0xFF1D4ED8),
+                                    borderRadius: BorderRadius.circular(18),
+                                  ),
+                                  child: const Icon(Icons.navigation_rounded,
+                                      color: Colors.white, size: 30),
+                                ),
+                                const SizedBox(width: 12),
+                                const Expanded(
+                                  child: Text(
+                                    'WalkGuide',
+                                    style: TextStyle(
+                                      fontSize: 18,
+                                      fontWeight: FontWeight.w900,
+                                      color: Color(0xFF0F172A),
+                                    ),
+                                  ),
+                                ),
+                              ],
+                            ),
+                            const SizedBox(height: 22),
+                            Text(
+                              title,
                               style: Theme.of(context)
                                   .textTheme
-                            .headlineSmall
+                                  .headlineMedium
-                            ?.copyWith(fontWeight: FontWeight.w800)),
+                                  ?.copyWith(
-                    const SizedBox(height: 4),
+                                    fontWeight: FontWeight.w900,
-                    Text(subtitle,
+                                    color: const Color(0xFF0F172A),
-                        textAlign: TextAlign.center,
+                                  ),
-                        style: const TextStyle(color: Color(0xFF64748B))),
+                            ),
-                    const SizedBox(height: 22),
+                            const SizedBox(height: 6),
+                            Text(
+                              subtitle,
+                              style: const TextStyle(
+                                color: Color(0xFF64748B),
+                                height: 1.35,
+                              ),
+                            ),
+                            const SizedBox(height: 26),
                             child,
                           ],
                         ),
@@ -335,6 +423,10 @@ class _AuthFrame extends StatelessWidget {
                   ),
                 ),
               ),
+            ),
+          ),
+        ],
+      ),
     );
   }
 }
@@ -348,12 +440,12 @@ Future<void> _showRegisterSuccess(
   final uniqueId = data['uniqueUserId']?.toString();
   final message = uniqueId == null || uniqueId.isEmpty
       ? 'Registrasi berhasil. Silakan login.'
-      : 'Registrasi berhasil!\n\nUnique User ID kamu:\n$uniqueId\n\nBagikan ID ini ke Guardian untuk pairing. Silakan login.';
+      : 'Registrasi berhasil.\n\nSilakan login, lalu buka menu Pairing Code untuk membuat kode sementara yang bisa dibagikan ke Guardian.';
   _snack(
       context,
       uniqueId == null
           ? 'Registrasi berhasil.'
-          : 'Registrasi berhasil. ID: $uniqueId');
+          : 'Registrasi berhasil. Buat Pairing Code setelah login.');
   await showDialog<void>(
     context: context,
     builder: (dialogContext) => AlertDialog(
@@ -375,19 +467,3 @@ void _snack(BuildContext context, String message) {
         .showSnackBar(SnackBar(content: Text(message)));
   }
 }
-
-String _friendlyDioMessage(DioException e, {required String fallback}) {
-  final data = e.response?.data;
-  if (data is Map && data['message'] != null) return data['message'].toString();
-  if (e.response?.statusCode == 409) {
-    return 'Email sudah terdaftar. Gunakan email lain atau login.';
-  }
-  if (e.type == DioExceptionType.connectionTimeout ||
-      e.type == DioExceptionType.receiveTimeout) {
-    return 'Server terlalu lama merespons. Pastikan backend masih running.';
-  }
-  if (e.type == DioExceptionType.connectionError) {
-    return 'Tidak bisa ke server. Di HP pakai IP server, bukan localhost.';
-  }
-  return fallback;
-}

walkguide-mobile/walkguide_app/lib/features/auth/splash_screen.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/storage/secure_storage.dart';
 
 // ---------------------------------------------------------------------------
@@ -51,7 +52,8 @@ class _SplashScreenState extends State<SplashScreen>
   }
 
   Future<void> _route() async {
-    try {
+    final routed = await runFriendlyAction(
+      () async {
         // Animasi logo selalu tampil minimal 500ms agar tidak langsung flash.
         await Future.delayed(const Duration(milliseconds: 500));
 
@@ -69,11 +71,14 @@ class _SplashScreenState extends State<SplashScreen>
         }
 
         // Auto-login: arahkan ke home sesuai role.
-      context.go(
+        context.go(role == 'ROLE_GUARDIAN'
-          role == 'ROLE_GUARDIAN' ? '/guardian/dashboard' : '/user/walkguide');
+            ? '/guardian/dashboard'
-    } catch (_) {
+            : '/user/walkguide');
-      if (mounted) context.go('/login');
+      },
-    }
+      onError: (_) {},
+      fallback: 'Sesi belum bisa dipulihkan.',
+    );
+    if (!routed && mounted) context.go('/login');
   }
 
   @override

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_activity_log_screen.dart

@@ -7,6 +7,7 @@ import 'package:google_fonts/google_fonts.dart';
 import 'package:intl/intl.dart';
 
 import '../../../app/injection_container.dart';
+import '../../../core/errors/friendly_error.dart';
 import '../../../core/network/api_client.dart';
 
 Dio get _api => sl<ApiClient>().dio;
@@ -48,7 +49,8 @@ class _GuardianActivityLogScreenState extends State<GuardianActivityLogScreen> {
       _error = null;
       _needsPairing = false;
     });
-    try {
+    await runFriendlyAction(
+      () async {
         // Cek pairing dulu
         final paired = await _hasActivePairing();
         if (!paired) {
@@ -85,29 +87,29 @@ class _GuardianActivityLogScreenState extends State<GuardianActivityLogScreen> {
           _applyFilter(_selectedFilter);
           _loading = false;
         });
-    } on DioException catch (e) {
+      },
-      setState(() {
+      onError: (message) => setState(() {
-        _error = e.response?.data?['message']?.toString() ??
+        _error = message;
-            'Gagal memuat activity log.';
         _loading = false;
-      });
+      }),
-    } catch (e) {
+      fallback: 'Gagal memuat activity log. Coba refresh lagi.',
-      setState(() {
+    );
-        _error = 'Timeout / error: $e';
-        _loading = false;
-      });
-    }
   }
 
   Future<bool> _hasActivePairing() async {
-    try {
+    final active = await runFriendly<bool>(
+      () async {
         final res = await _api
             .get('/shared/pairing/status')
             .timeout(const Duration(seconds: 5));
         final data = res.data['data'];
         if (data is Map) return data['status'] == 'ACTIVE';
-    } catch (_) {}
         return false;
+      },
+      onError: (_) {},
+      fallback: 'Status pairing belum bisa dicek.',
+    );
+    return active ?? false;
   }
 
   void _applyFilter(String filter) {

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_ai_config_screen.dart

@@ -7,6 +7,7 @@ import 'package:go_router/go_router.dart';
 import 'package:google_fonts/google_fonts.dart';
 
 import '../../../app/injection_container.dart';
+import '../../../core/errors/friendly_error.dart';
 import '../../../core/network/api_client.dart';
 
 Dio get _api => sl<ApiClient>().dio;
@@ -73,11 +74,12 @@ class _GuardianAiConfigScreenState extends State<GuardianAiConfigScreen> {
       }
     } on DioException catch (e) {
       setState(() {
-        _error = e.response?.data?['message']?.toString() ??
+        _error =
-            'Gagal memuat konfigurasi AI.';
+            friendlyDioMessage(e, fallback: 'Gagal memuat konfigurasi AI.');
       });
     } catch (e) {
-      setState(() => _error = 'Timeout / error: $e');
+      setState(
+          () => _error = 'Gagal memuat konfigurasi AI. Coba refresh lagi.');
     } finally {
       if (mounted) setState(() => _loading = false);
     }
@@ -105,8 +107,8 @@ class _GuardianAiConfigScreenState extends State<GuardianAiConfigScreen> {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(
-            content: Text(e.response?.data?['message']?.toString() ??
+            content: Text(friendlyDioMessage(e,
-                'Gagal menyimpan konfigurasi.'),
+                fallback: 'Gagal menyimpan konfigurasi.')),
             backgroundColor: const Color(0xFFDC2626),
           ),
         );
@@ -114,9 +116,9 @@ class _GuardianAiConfigScreenState extends State<GuardianAiConfigScreen> {
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
+          const SnackBar(
-            content: Text('Error: $e'),
+            content: Text('Gagal menyimpan konfigurasi. Coba lagi.'),
-            backgroundColor: const Color(0xFFDC2626),
+            backgroundColor: Color(0xFFDC2626),
           ),
         );
       }

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_map_screen.dart

@@ -0,0 +1,301 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:intl/intl.dart';
+import 'package:latlong2/latlong.dart';
+
+import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
+import '../../core/network/api_client.dart';
+import '../../shared/widgets/feature_page.dart';
+
+class GuardianMapScreen extends StatefulWidget {
+  const GuardianMapScreen({super.key});
+
+  @override
+  State<GuardianMapScreen> createState() => _GuardianMapScreenState();
+}
+
+class _GuardianMapScreenState extends State<GuardianMapScreen> {
+  bool _loading = true;
+  String? _error;
+  Map<String, dynamic>? _lastLocation;
+  List<Map<String, dynamic>> _history = const [];
+
+  @override
+  void initState() {
+    super.initState();
+    _load();
+  }
+
+  Future<void> _load() async {
+    setState(() {
+      _loading = true;
+      _error = null;
+    });
+    await runFriendlyAction(
+      () async {
+        final dio = sl<ApiClient>().dio;
+        final current = await dio
+            .get('/guardian/user-location')
+            .timeout(const Duration(seconds: 8));
+        final history = await dio.get('/guardian/location-history',
+            queryParameters: {'size': 80}).timeout(const Duration(seconds: 8));
+        final currentData = current.data is Map ? current.data['data'] : null;
+        final historyData = history.data is Map ? history.data['data'] : null;
+        _lastLocation =
+            currentData is Map ? Map<String, dynamic>.from(currentData) : null;
+        final content = historyData is Map ? historyData['content'] : null;
+        _history = content is List
+            ? content
+                .whereType<Map>()
+                .map((e) => Map<String, dynamic>.from(e))
+                .toList()
+            : const [];
+      },
+      onError: (message) => _error = message,
+      fallback: 'Lokasi User belum bisa dimuat. Coba refresh lagi.',
+    );
+    if (mounted) setState(() => _loading = false);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FeaturePage(
+      title: 'Live Map',
+      subtitle: 'Lokasi terakhir User dan timeline perjalanan',
+      trailing: IconButton(
+        onPressed: _loading ? null : _load,
+        icon: const Icon(Icons.refresh),
+        tooltip: 'Refresh',
+      ),
+      child: _loading
+          ? const Center(child: CircularProgressIndicator())
+          : _error != null
+              ? FeatureErrorPanel(message: _error!, onRetry: _load)
+              : Column(
+                  children: [
+                    Expanded(
+                      flex: 3,
+                      child: _GuardianMapCard(
+                        location: _lastLocation,
+                        history: _history,
+                      ),
+                    ),
+                    const SizedBox(height: 12),
+                    Expanded(
+                      flex: 2,
+                      child: _TimelineList(history: _history, onRetry: _load),
+                    ),
+                  ],
+                ),
+    );
+  }
+}
+
+class _GuardianMapCard extends StatelessWidget {
+  final Map<String, dynamic>? location;
+  final List<Map<String, dynamic>> history;
+
+  const _GuardianMapCard({required this.location, required this.history});
+
+  @override
+  Widget build(BuildContext context) {
+    final points = _pointsFrom(history);
+    final center = _pointFrom(location) ??
+        (points.isNotEmpty ? points.first : null) ??
+        const LatLng(-7.2575, 112.7521);
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(20),
+      child: FlutterMap(
+        options: MapOptions(initialCenter: center, initialZoom: 16),
+        children: [
+          TileLayer(
+            urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+            userAgentPackageName: 'com.walkguide.app',
+          ),
+          if (points.length > 1)
+            PolylineLayer(
+              polylines: [
+                Polyline(
+                  points: points,
+                  strokeWidth: 4,
+                  color: const Color(0xFF2563EB),
+                ),
+              ],
+            ),
+          MarkerLayer(
+            markers: [
+              Marker(
+                point: center,
+                width: 54,
+                height: 54,
+                child: Container(
+                  decoration: BoxDecoration(
+                    color: const Color(0xFF2563EB),
+                    shape: BoxShape.circle,
+                    border: Border.all(color: Colors.white, width: 4),
+                  ),
+                  child:
+                      const Icon(Icons.person_pin_circle, color: Colors.white),
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _TimelineList extends StatelessWidget {
+  final List<Map<String, dynamic>> history;
+  final VoidCallback onRetry;
+
+  const _TimelineList({required this.history, required this.onRetry});
+
+  @override
+  Widget build(BuildContext context) {
+    final segments = _segments(history);
+    if (segments.isEmpty) {
+      return FeatureEmptyPanel(
+        icon: Icons.timeline,
+        title: 'Belum ada timeline',
+        message:
+            'Timeline akan muncul setelah User mengirim beberapa titik lokasi.',
+        action: OutlinedButton.icon(
+          onPressed: onRetry,
+          icon: const Icon(Icons.refresh),
+          label: const Text('Refresh'),
+        ),
+      );
+    }
+    return ListView.separated(
+      itemCount: segments.length,
+      separatorBuilder: (_, __) => const SizedBox(height: 10),
+      itemBuilder: (_, index) => _TimelineCard(segment: segments[index]),
+    );
+  }
+}
+
+class _TimelineCard extends StatelessWidget {
+  final _TimelineSegment segment;
+
+  const _TimelineCard({required this.segment});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.all(14),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16),
+        border: Border.all(color: const Color(0xFFE2E8F0)),
+      ),
+      child: Row(
+        children: [
+          Container(
+            width: 42,
+            height: 42,
+            decoration: BoxDecoration(
+              color: const Color(0xFFEFF6FF),
+              borderRadius: BorderRadius.circular(14),
+            ),
+            child: Icon(segment.icon, color: const Color(0xFF1D4ED8)),
+          ),
+          const SizedBox(width: 12),
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(segment.title,
+                    style: const TextStyle(fontWeight: FontWeight.w800)),
+                const SizedBox(height: 4),
+                Text(segment.subtitle,
+                    style: const TextStyle(color: Color(0xFF64748B))),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _TimelineSegment {
+  final String title;
+  final String subtitle;
+  final IconData icon;
+
+  const _TimelineSegment({
+    required this.title,
+    required this.subtitle,
+    required this.icon,
+  });
+}
+
+List<_TimelineSegment> _segments(List<Map<String, dynamic>> history) {
+  final items = [...history]..sort((a, b) => _time(a).compareTo(_time(b)));
+  if (items.length < 2) return const [];
+  final chunks = <_TimelineSegment>[];
+  for (var i = 0; i < items.length - 1; i += 6) {
+    final start = items[i];
+    final end = items[math.min(i + 5, items.length - 1)];
+    final distance = _distanceBetween(start, end);
+    final speed = _avgSpeed(items.sublist(i, math.min(i + 6, items.length)));
+    final mode = speed > 2.8
+        ? 'Naik kendaraan'
+        : speed > 1.1
+            ? 'Berjalan cepat'
+            : 'Berjalan';
+    chunks.add(
+      _TimelineSegment(
+        title: '${_clock(start)} - ${_clock(end)}  $mode',
+        subtitle:
+            '${distance.toStringAsFixed(0)} m, avg ${speed.toStringAsFixed(1)} m/s',
+        icon: speed > 2.8 ? Icons.directions_bike : Icons.directions_walk,
+      ),
+    );
+  }
+  return chunks.reversed.toList();
+}
+
+List<LatLng> _pointsFrom(List<Map<String, dynamic>> history) {
+  return history.map(_pointFrom).whereType<LatLng>().toList();
+}
+
+LatLng? _pointFrom(Map<String, dynamic>? item) {
+  if (item == null) return null;
+  final lat = (item['lat'] as num?)?.toDouble();
+  final lng = (item['lng'] as num?)?.toDouble();
+  if (lat == null || lng == null) return null;
+  return LatLng(lat, lng);
+}
+
+DateTime _time(Map<String, dynamic> item) {
+  return DateTime.tryParse(item['createdAt']?.toString() ?? '') ??
+      DateTime.fromMillisecondsSinceEpoch(0);
+}
+
+String _clock(Map<String, dynamic> item) {
+  final time = _time(item).toLocal();
+  return DateFormat('HH:mm').format(time);
+}
+
+double _distanceBetween(Map<String, dynamic> a, Map<String, dynamic> b) {
+  final start = _pointFrom(a);
+  final end = _pointFrom(b);
+  if (start == null || end == null) return 0;
+  return const Distance().as(LengthUnit.Meter, start, end);
+}
+
+double _avgSpeed(List<Map<String, dynamic>> items) {
+  final speeds = items
+      .map((e) => (e['speed'] as num?)?.toDouble())
+      .whereType<double>()
+      .where((speed) => speed >= 0)
+      .toList();
+  if (speeds.isEmpty) return 0;
+  return speeds.reduce((a, b) => a + b) / speeds.length;
+}

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_screens.dart

@@ -1,18 +1,15 @@
 export '../home/presentation/guardian_dashboard_screen.dart'
     show GuardianDashboardScreen;
 
-export 'guardian_activity_log_screen.dart'
+export 'guardian_activity_log_screen.dart' show GuardianActivityLogScreen;
-    show
-        GuardianActivityLogScreen;
 
-export 'guardian_ai_config_screen.dart'
+export 'guardian_ai_config_screen.dart' show GuardianAiConfigScreen;
-    show
-        GuardianAiConfigScreen;
 
-export '../screens.dart'
+export 'guardian_map_screen.dart' show GuardianMapScreen;
-    show
+
-        GuardianMapScreen,
+export 'guardian_send_notification_screen.dart' show GuardianSendNotifScreen;
-        GuardianSendNotifScreen,
+
-        GuardianVoiceCmdScreen,
+export 'guardian_settings_screen.dart' show GuardianSettingsScreen;
-        GuardianShortcutScreen,
+
-        GuardianGeofenceScreen;
+export 'guardian_tools_screen.dart'
+    show GuardianVoiceCmdScreen, GuardianShortcutScreen, GuardianGeofenceScreen;

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_send_notification_screen.dart

@@ -0,0 +1,108 @@
+import 'package:flutter/material.dart';
+
+import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
+import '../../core/network/api_client.dart';
+import '../../shared/widgets/feature_page.dart';
+
+class GuardianSendNotifScreen extends StatefulWidget {
+  const GuardianSendNotifScreen({super.key});
+
+  @override
+  State<GuardianSendNotifScreen> createState() =>
+      _GuardianSendNotifScreenState();
+}
+
+class _GuardianSendNotifScreenState extends State<GuardianSendNotifScreen> {
+  final _message = TextEditingController();
+  bool _loading = false;
+
+  @override
+  void dispose() {
+    _message.dispose();
+    super.dispose();
+  }
+
+  Future<void> _send() async {
+    final message = _message.text.trim();
+    if (message.isEmpty) {
+      _snack('Tulis pesan dulu.');
+      return;
+    }
+    setState(() => _loading = true);
+    await runFriendlyAction(
+      () async {
+        await sl<ApiClient>().dio.post('/guardian/notifications/send', data: {
+          'notifType': 'TEXT',
+          'content': message,
+        }).timeout(const Duration(seconds: 8));
+        _message.clear();
+        _snack('Notifikasi terkirim ke User.');
+      },
+      onError: _snack,
+      fallback: 'Gagal mengirim notifikasi. Coba lagi.',
+    );
+    if (mounted) setState(() => _loading = false);
+  }
+
+  void _snack(String message) {
+    if (!mounted) return;
+    ScaffoldMessenger.of(context)
+        .showSnackBar(SnackBar(content: Text(message)));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FeaturePage(
+      title: 'Send Notification',
+      subtitle: 'Kirim pesan singkat ke User yang sudah pairing',
+      child: ListView(
+        children: [
+          Container(
+            padding: const EdgeInsets.all(18),
+            decoration: BoxDecoration(
+              color: Colors.white,
+              borderRadius: BorderRadius.circular(20),
+              border: Border.all(color: const Color(0xFFE2E8F0)),
+              boxShadow: [
+                BoxShadow(
+                  color: const Color(0xFF1E293B).withValues(alpha: 0.06),
+                  blurRadius: 22,
+                  offset: const Offset(0, 12),
+                ),
+              ],
+            ),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                TextField(
+                  controller: _message,
+                  minLines: 5,
+                  maxLines: 8,
+                  decoration: const InputDecoration(
+                    labelText: 'Message',
+                    hintText: 'Contoh: Hati-hati, belok kanan setelah pintu.',
+                    prefixIcon: Icon(Icons.message_outlined),
+                    alignLabelWithHint: true,
+                  ),
+                ),
+                const SizedBox(height: 14),
+                FilledButton.icon(
+                  onPressed: _loading ? null : _send,
+                  icon: _loading
+                      ? const SizedBox(
+                          width: 18,
+                          height: 18,
+                          child: CircularProgressIndicator(strokeWidth: 2),
+                        )
+                      : const Icon(Icons.send),
+                  label: Text(_loading ? 'Sending...' : 'Send Message'),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_settings_screen.dart

@@ -0,0 +1,122 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:go_router/go_router.dart';
+
+import '../../app/app_cubit.dart';
+import '../../app/injection_container.dart';
+import '../../core/constants/app_constants.dart';
+import '../../core/errors/friendly_error.dart';
+import '../../core/network/api_client.dart';
+import '../../core/storage/secure_storage.dart';
+import '../../shared/widgets/feature_page.dart';
+
+class GuardianSettingsScreen extends StatelessWidget {
+  const GuardianSettingsScreen({super.key});
+
+  Future<void> _logout(BuildContext context) async {
+    final appCubit = context.read<AppCubit>();
+    await sl<SecureStorage>().clearAll();
+    appCubit.clearSession();
+    unawaited(_notifyBackendLogout());
+    if (context.mounted) context.go('/login');
+  }
+
+  Future<void> _notifyBackendLogout() async {
+    await runFriendlyAction(
+      () async {
+        await sl<ApiClient>()
+            .dio
+            .post('/auth/logout')
+            .timeout(const Duration(seconds: 3));
+      },
+      onError: (_) {},
+      fallback: 'Logout server belum bisa dikonfirmasi.',
+    );
+  }
+
+  Future<void> _changeServer(BuildContext context) async {
+    await AppConstants.clearServerUrl();
+    await sl<SecureStorage>().clearAll();
+    if (context.mounted) context.go('/server-connect');
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FeaturePage(
+      title: 'Guardian Settings',
+      subtitle: 'Account, pairing, AI tools, and server',
+      child: ListView(
+        children: [
+          _SettingsTile(
+            icon: Icons.link,
+            title: 'Pair User',
+            subtitle: 'Masukkan Pairing Code User atau cek status pairing.',
+            onTap: () => context.go('/guardian/pairing'),
+          ),
+          _SettingsTile(
+            icon: Icons.speed,
+            title: 'AI Benchmark',
+            subtitle: 'Catat capture, inference, notification, dan TTS.',
+            onTap: () => context.go('/guardian/benchmark'),
+          ),
+          _SettingsTile(
+            icon: Icons.tune,
+            title: 'AI Config',
+            subtitle: 'Atur threshold deteksi dan label yang aktif.',
+            onTap: () => context.go('/guardian/ai-config'),
+          ),
+          const SizedBox(height: 18),
+          OutlinedButton.icon(
+            onPressed: () => _changeServer(context),
+            icon: const Icon(Icons.dns_outlined),
+            label: const Text('Change server'),
+          ),
+          const SizedBox(height: 8),
+          FilledButton.icon(
+            style: FilledButton.styleFrom(
+              backgroundColor: const Color(0xFFDC2626),
+            ),
+            onPressed: () => _logout(context),
+            icon: const Icon(Icons.logout),
+            label: const Text('Logout'),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _SettingsTile extends StatelessWidget {
+  final IconData icon;
+  final String title;
+  final String subtitle;
+  final VoidCallback onTap;
+
+  const _SettingsTile({
+    required this.icon,
+    required this.title,
+    required this.subtitle,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      margin: const EdgeInsets.only(bottom: 10),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16),
+        border: Border.all(color: const Color(0xFFE2E8F0)),
+      ),
+      child: ListTile(
+        leading: Icon(icon, color: const Color(0xFF1D4ED8)),
+        title: Text(title, style: const TextStyle(fontWeight: FontWeight.w800)),
+        subtitle: Text(subtitle),
+        trailing: const Icon(Icons.chevron_right),
+        onTap: onTap,
+      ),
+    );
+  }
+}

walkguide-mobile/walkguide_app/lib/features/guardian_dashboard/guardian_tools_screen.dart

@@ -0,0 +1,199 @@
+import 'package:flutter/material.dart';
+
+import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
+import '../../core/network/api_client.dart';
+import '../../shared/widgets/feature_page.dart';
+
+class GuardianVoiceCmdScreen extends StatelessWidget {
+  const GuardianVoiceCmdScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) => const _GuardianEndpointScreen(
+        title: 'Voice Commands',
+        subtitle: 'Daftar voice command yang aktif untuk User',
+        endpoint: '/guardian/voice-commands',
+        icon: Icons.record_voice_over_outlined,
+      );
+}
+
+class GuardianShortcutScreen extends StatelessWidget {
+  const GuardianShortcutScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) => const _GuardianEndpointScreen(
+        title: 'Hardware Shortcuts',
+        subtitle: 'Shortcut tombol untuk aksi cepat WalkGuide',
+        endpoint: '/guardian/shortcuts',
+        icon: Icons.keyboard_command_key_outlined,
+      );
+}
+
+class GuardianGeofenceScreen extends StatelessWidget {
+  const GuardianGeofenceScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) => const _GuardianEndpointScreen(
+        title: 'Geofence',
+        subtitle: 'Area aman dan peringatan lokasi User',
+        endpoint: '/guardian/geofence',
+        icon: Icons.fence_outlined,
+      );
+}
+
+class _GuardianEndpointScreen extends StatefulWidget {
+  final String title;
+  final String subtitle;
+  final String endpoint;
+  final IconData icon;
+
+  const _GuardianEndpointScreen({
+    required this.title,
+    required this.subtitle,
+    required this.endpoint,
+    required this.icon,
+  });
+
+  @override
+  State<_GuardianEndpointScreen> createState() =>
+      _GuardianEndpointScreenState();
+}
+
+class _GuardianEndpointScreenState extends State<_GuardianEndpointScreen> {
+  bool _loading = true;
+  String? _error;
+  List<Map<String, dynamic>> _items = const [];
+
+  @override
+  void initState() {
+    super.initState();
+    _load();
+  }
+
+  Future<void> _load() async {
+    setState(() {
+      _loading = true;
+      _error = null;
+    });
+    await runFriendlyAction(
+      () async {
+        final res = await sl<ApiClient>().dio.get(widget.endpoint,
+            queryParameters: {'size': 50}).timeout(const Duration(seconds: 8));
+        _items = _extractList(res.data);
+      },
+      onError: (message) => _error = message,
+      fallback: 'Data belum bisa dimuat. Coba refresh lagi.',
+    );
+    if (mounted) setState(() => _loading = false);
+  }
+
+  List<Map<String, dynamic>> _extractList(dynamic body) {
+    final data = body is Map ? body['data'] : body;
+    final raw = data is Map ? data['content'] : data;
+    if (raw is! List) return const [];
+    return raw
+        .whereType<Map>()
+        .map((item) => Map<String, dynamic>.from(item))
+        .toList();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FeaturePage(
+      title: widget.title,
+      subtitle: widget.subtitle,
+      trailing: IconButton(
+        onPressed: _loading ? null : _load,
+        icon: const Icon(Icons.refresh),
+        tooltip: 'Refresh',
+      ),
+      child: _loading
+          ? const Center(child: CircularProgressIndicator())
+          : _error != null
+              ? FeatureErrorPanel(message: _error!, onRetry: _load)
+              : _items.isEmpty
+                  ? FeatureEmptyPanel(
+                      icon: widget.icon,
+                      title: 'Belum ada data',
+                      message:
+                          'Data akan muncul setelah Guardian membuat konfigurasi atau User mulai memakai fitur ini.',
+                      action: OutlinedButton.icon(
+                        onPressed: _load,
+                        icon: const Icon(Icons.refresh),
+                        label: const Text('Refresh'),
+                      ),
+                    )
+                  : RefreshIndicator(
+                      onRefresh: _load,
+                      child: ListView.separated(
+                        itemCount: _items.length,
+                        separatorBuilder: (_, __) => const SizedBox(height: 10),
+                        itemBuilder: (_, index) => _EndpointCard(
+                          icon: widget.icon,
+                          item: _items[index],
+                        ),
+                      ),
+                    ),
+    );
+  }
+}
+
+class _EndpointCard extends StatelessWidget {
+  final IconData icon;
+  final Map<String, dynamic> item;
+
+  const _EndpointCard({required this.icon, required this.item});
+
+  @override
+  Widget build(BuildContext context) {
+    final title = _firstText(item, ['name', 'command', 'label', 'type']) ??
+        'Item #${item['id'] ?? '-'}';
+    final subtitle = _firstText(
+          item,
+          ['description', 'action', 'shortcut', 'status', 'createdAt'],
+        ) ??
+        'Data aktif';
+    return Container(
+      padding: const EdgeInsets.all(14),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16),
+        border: Border.all(color: const Color(0xFFE2E8F0)),
+      ),
+      child: Row(
+        children: [
+          Container(
+            width: 42,
+            height: 42,
+            decoration: BoxDecoration(
+              color: const Color(0xFFEFF6FF),
+              borderRadius: BorderRadius.circular(14),
+            ),
+            child: Icon(icon, color: const Color(0xFF1D4ED8)),
+          ),
+          const SizedBox(width: 12),
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(title,
+                    style: const TextStyle(fontWeight: FontWeight.w800)),
+                const SizedBox(height: 3),
+                Text(subtitle,
+                    style: const TextStyle(color: Color(0xFF64748B))),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+String? _firstText(Map<String, dynamic> item, List<String> keys) {
+  for (final key in keys) {
+    final value = item[key]?.toString().trim();
+    if (value != null && value.isNotEmpty && value != 'null') return value;
+  }
+  return null;
+}

walkguide-mobile/walkguide_app/lib/features/navigation_mode/navigation_mode_screen.dart

@@ -9,6 +9,7 @@ import 'dart:async';
 import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:geolocator/geolocator.dart';
 import 'package:latlong2/latlong.dart';
 
@@ -38,12 +39,14 @@ class _Step {
       required this.point});
 }
 
-// ─── BLoC-lite state (plain ChangeNotifier to avoid heavy BLoC boilerplate
+// Navigation state is kept in a lightweight Cubit so the app uses one
-//      while staying consistent with the rest of screens.dart approach) ─────
+// state-management family consistently.
 
 enum _NavPhase { idle, locating, routing, navigating, error }
 
-class _NavState extends ChangeNotifier {
+class _NavState extends Cubit<int> {
+  _NavState() : super(0);
+
   _NavPhase phase = _NavPhase.idle;
   String statusText = 'Ketuk tombol lokasi atau cari tujuan.';
   LatLng? currentPosition;
@@ -59,9 +62,11 @@ class _NavState extends ChangeNotifier {
   void _set(_NavPhase p, String status) {
     phase = p;
     statusText = status;
-    notifyListeners();
+    _notify();
   }
 
+  void _notify() => emit(state + 1);
+
   // ── locate ──────────────────────────────────────────────────────────────
   Future<bool> locate() async {
     _set(_NavPhase.locating, 'Mencari lokasi GPS…');
@@ -85,7 +90,8 @@ class _NavState extends ChangeNotifier {
       _set(_NavPhase.error, 'GPS timeout. Pastikan GPS aktif.');
       return false;
     } catch (e) {
-      _set(_NavPhase.error, 'GPS error: $e');
+      _set(_NavPhase.error,
+          'Lokasi belum bisa dibaca. Pastikan GPS dan izin lokasi aktif.');
       return false;
     }
   }
@@ -211,10 +217,11 @@ class _NavState extends ChangeNotifier {
 
       _set(_NavPhase.navigating,
           steps.isNotEmpty ? steps[0].instruction : 'Ikuti rute biru.');
-      notifyListeners();
+      _notify();
       _startTracking();
     } catch (e) {
-      _set(_NavPhase.error, 'Gagal mendapat rute: $e');
+      _set(_NavPhase.error,
+          'Gagal mendapat rute. Periksa koneksi lalu coba lagi.');
     }
   }
 
@@ -283,7 +290,7 @@ class _NavState extends ChangeNotifier {
       currentPosition = LatLng(pos.latitude, pos.longitude);
       _reportToBackend(pos);
       _updateStep();
-      notifyListeners();
+      _notify();
     });
   }
 
@@ -302,7 +309,7 @@ class _NavState extends ChangeNotifier {
         final next = steps[currentStepIndex];
         statusText = next.instruction;
         sl<TtsService>().speak(next.instruction);
-        notifyListeners();
+        _notify();
       }
     }
   }
@@ -318,9 +325,9 @@ class _NavState extends ChangeNotifier {
   }
 
   @override
-  void dispose() {
+  Future<void> close() {
     _posStream?.cancel();
-    super.dispose();
+    return super.close();
   }
 }
 
@@ -339,6 +346,7 @@ class _NavigationModeScreenState extends State<NavigationModeScreen> {
   final _searchCtrl = TextEditingController();
   final _searchFocus = FocusNode();
 
+  StreamSubscription<int>? _navSubscription;
   List<_Place> _suggestions = const [];
   bool _searchLoading = false;
   bool _showSuggestions = false;
@@ -348,7 +356,7 @@ class _NavigationModeScreenState extends State<NavigationModeScreen> {
   @override
   void initState() {
     super.initState();
-    _navState.addListener(_onStateChange);
+    _navSubscription = _navState.stream.listen((_) => _onStateChange());
     WidgetsBinding.instance.addPostFrameCallback((_) => _init());
   }
 
@@ -433,8 +441,8 @@ class _NavigationModeScreenState extends State<NavigationModeScreen> {
   @override
   void dispose() {
     _debounce?.cancel();
-    _navState.removeListener(_onStateChange);
+    _navSubscription?.cancel();
-    _navState.dispose();
+    _navState.close();
     _searchCtrl.dispose();
     _searchFocus.dispose();
     super.dispose();

walkguide-mobile/walkguide_app/lib/features/notifications/notification_screen.dart

@@ -6,6 +6,7 @@ import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/services/tts_service.dart';
 import '../../core/theme/app_colors.dart';
@@ -36,7 +37,8 @@ class _NotificationScreenState extends State<NotificationScreen> {
       _loading = true;
       _error = null;
     });
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await _api
             .get('/user/notifications')
             .timeout(const Duration(seconds: 10));
@@ -44,17 +46,12 @@ class _NotificationScreenState extends State<NotificationScreen> {
         setState(() {
           _items = list.map((e) => _NotifItem.fromJson(e)).toList();
         });
-    } on DioException catch (e) {
+      },
-      setState(() {
+      onError: (message) => setState(() => _error = message),
-        _error = e.response?.data?['message']?.toString() ??
+      fallback: 'Gagal memuat notifikasi. Coba refresh lagi.',
-            'Gagal memuat notifikasi.';
+    );
-      });
-    } catch (e) {
-      setState(() => _error = 'Timeout / error: $e');
-    } finally {
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   List<Map<String, dynamic>> _extractList(dynamic responseBody) {
     final data = responseBody is Map ? responseBody['data'] : null;
@@ -67,7 +64,8 @@ class _NotificationScreenState extends State<NotificationScreen> {
   }
 
   Future<void> _markRead(int id) async {
-    try {
+    await runFriendlyAction(
+      () async {
         await _api
             .put('/user/notifications/$id/read')
             .timeout(const Duration(seconds: 6));
@@ -75,12 +73,16 @@ class _NotificationScreenState extends State<NotificationScreen> {
           final idx = _items.indexWhere((n) => n.id == id);
           if (idx != -1) _items[idx] = _items[idx].copyWith(isRead: true);
         });
-    } catch (_) {}
+      },
+      onError: (_) {},
+      fallback: 'Gagal menandai notifikasi.',
+    );
   }
 
   Future<void> _markAllRead() async {
     setState(() => _markingAll = true);
-    try {
+    await runFriendlyAction(
+      () async {
         await _api
             .put('/user/notifications/mark-all-read')
             .timeout(const Duration(seconds: 8));
@@ -88,15 +90,12 @@ class _NotificationScreenState extends State<NotificationScreen> {
           _items = _items.map((n) => n.copyWith(isRead: true)).toList();
         });
         _snack('Semua notifikasi ditandai sudah dibaca.');
-    } on DioException catch (e) {
+      },
-      _snack(e.response?.data?['message']?.toString() ??
+      onError: _snack,
-          'Gagal menandai semua dibaca.');
+      fallback: 'Gagal menandai semua dibaca.',
-    } catch (_) {
+    );
-      _snack('Timeout. Coba lagi.');
-    } finally {
     if (mounted) setState(() => _markingAll = false);
   }
-  }
 
   Future<void> _readAloud(_NotifItem notif) async {
     final tts = sl<TtsService>();

walkguide-mobile/walkguide_app/lib/features/pairing/pairing_screens.dart

@@ -2,10 +2,10 @@
 
 import 'dart:async';
 
-import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/storage/secure_storage.dart';
 
@@ -14,7 +14,7 @@ import '../../core/storage/secure_storage.dart';
 // ---------------------------------------------------------------------------
 //
 // Ditampilkan ke akun ROLE_USER.
-// - Tampilkan uniqueUserId mereka (besar, bisa di-copy/share).
+// - Tampilkan pairing code sementara yang bisa di-copy/share.
 // - Jika ada pending invite → tampilkan nama Guardian + tombol Accept / Reject.
 // - Jika sudah paired → tampilkan info Guardian + tombol Unpair.
 // ---------------------------------------------------------------------------
@@ -28,6 +28,10 @@ class UserPairingScreen extends StatefulWidget {
 
 class _UserPairingScreenState extends State<UserPairingScreen> {
   String? _uniqueId;
+  String? _pairingCode;
+  DateTime? _pairingCodeExpiresAt;
+  int? _pairingCodeSeconds;
+  bool _regenerating = false;
 
   @override
   void initState() {
@@ -38,36 +42,87 @@ class _UserPairingScreenState extends State<UserPairingScreen> {
   Future<void> _loadUniqueId() async {
     var value = await sl<SecureStorage>().getUniqueUserId();
     if (value == null || value.isEmpty) {
-      try {
+      await runFriendlyAction(
+        () async {
           final res = await sl<ApiClient>()
               .dio
               .get('/user/profile')
               .timeout(const Duration(seconds: 5));
           final data = res.data['data'];
           if (data is Map) value = data['uniqueUserId']?.toString();
-      } catch (_) {}
+        },
+        onError: (_) {},
+        fallback: 'Profil belum bisa dimuat.',
+      );
     }
     if (mounted) setState(() => _uniqueId = value);
   }
 
+  Future<void> _regeneratePairingCode() async {
+    setState(() => _regenerating = true);
+    await runFriendlyAction(
+      () async {
+        final res = await sl<ApiClient>()
+            .dio
+            .post('/shared/pairing/code/regenerate')
+            .timeout(const Duration(seconds: 8));
+        _applyPairingCode(res.data['data']);
+        _snack(context, 'Pairing code baru sudah dibuat.');
+      },
+      onError: (message) => _snack(context, message),
+      fallback: 'Gagal membuat pairing code baru.',
+    );
+    if (mounted) setState(() => _regenerating = false);
+  }
+
+  void _applyPairingCode(dynamic raw) {
+    if (raw is! Map) return;
+    final expires = DateTime.tryParse(raw['expiresAt']?.toString() ?? '');
+    setState(() {
+      _pairingCode = raw['pairingCode']?.toString();
+      _pairingCodeExpiresAt = expires;
+      _pairingCodeSeconds = int.tryParse(raw['expiresInSeconds'].toString());
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return _Page(
       title: 'Pairing',
-      subtitle: 'Bagikan Unique ID ini ke Guardian untuk terhubung.',
+      subtitle: 'Bagikan pairing code sementara ini ke Guardian.',
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
-          if (_uniqueId == null || _uniqueId!.isEmpty)
+          if (_pairingCode == null || _pairingCode!.isEmpty)
             _InfoCard(
-                title: 'Your Unique ID',
+                title: 'Pairing Code',
-                value: 'Login sebagai User untuk melihat ID',
+                value: 'Tap Generate',
-                icon: Icons.qr_code_2)
+                icon: Icons.qr_code_2,
+                helper:
+                    'Kode dibuat saat dibutuhkan, berlaku sementara, dan bisa dibuat ulang kapan saja.')
           else
             _InfoCard(
-                title: 'Your Unique ID',
+                title: 'Pairing Code',
-                value: _uniqueId!,
+                value: _pairingCode!,
-                icon: Icons.qr_code_2),
+                icon: Icons.qr_code_2,
+                helper:
+                    'Valid ${_formatRemaining(_pairingCodeSeconds, _pairingCodeExpiresAt)}. Kode ini akan berubah dan kadaluarsa otomatis.'),
+          const SizedBox(height: 10),
+          OutlinedButton.icon(
+            onPressed: _regenerating ? null : _regeneratePairingCode,
+            icon: _regenerating
+                ? const SizedBox(
+                    width: 18,
+                    height: 18,
+                    child: CircularProgressIndicator(strokeWidth: 2))
+                : const Icon(Icons.autorenew),
+            label: Text(_regenerating ? 'Generating...' : 'Generate New Code'),
+          ),
+          if (_uniqueId != null && _uniqueId!.isNotEmpty) ...[
+            const SizedBox(height: 8),
+            Text('Account ID: $_uniqueId',
+                style: const TextStyle(color: Color(0xFF64748B), fontSize: 12)),
+          ],
           const SizedBox(height: 16),
           _PairingStatusCard(allowUserResponse: true),
         ],
@@ -81,7 +136,7 @@ class _UserPairingScreenState extends State<UserPairingScreen> {
 // ---------------------------------------------------------------------------
 //
 // Ditampilkan ke akun ROLE_GUARDIAN.
-// - Input field 12-char User ID.
+// - Input field 8-char temporary pairing code.
 // - Tombol "Send Invite".
 // - Status card: jika sudah paired → info User + tombol Unpair.
 //   Jika pending → waiting state.
@@ -100,51 +155,46 @@ class _GuardianPairingScreenState extends State<GuardianPairingScreen> {
   int _statusReload = 0;
 
   Future<void> _invite() async {
-    final uniqueId = _id.text.trim().toUpperCase();
+    final pairingCode = _id.text.trim().toUpperCase();
-    if (uniqueId.isEmpty || uniqueId.length != 12) {
+    if (pairingCode.isEmpty || pairingCode.length != 8) {
-      _snack(context, 'Unique ID harus 12 karakter dari akun User.');
+      _snack(context, 'Pairing code harus 8 karakter dari akun User.');
       return;
     }
     setState(() => _loading = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await sl<ApiClient>().dio.post('/shared/pairing/invite',
-          data: {'uniqueUserId': uniqueId}).timeout(const Duration(seconds: 8));
+            data: {
+              'pairingCode': pairingCode
+            }).timeout(const Duration(seconds: 8));
         _snack(
             context,
             res.data['message']?.toString() ??
                 'Invite terkirim. Minta User buka menu Pairing lalu Accept.');
         setState(() => _statusReload++);
-    } on DioException catch (e) {
+      },
-      _snack(
+      onError: (message) => _snack(context, message),
-          context,
-          _friendlyDioMessage(e,
       fallback:
-                  'Invite gagal. Pastikan kamu login sebagai Guardian dan ID User benar.'));
+          'Invite gagal. Pastikan kamu login sebagai Guardian dan pairing code benar.',
-    } on TimeoutException {
+    );
-      _snack(context,
-          'Server terlalu lama merespons invite. Coba Refresh status, jangan klik berkali-kali.');
-    } catch (e) {
-      _snack(context, 'Invite gagal: $e');
-    } finally {
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   @override
   Widget build(BuildContext context) {
     return _Page(
       title: 'Pair User',
-      subtitle: 'Masukkan 12 karakter Unique ID milik User.',
+      subtitle: 'Masukkan 8 karakter pairing code aktif dari User.',
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
           TextField(
               controller: _id,
               textCapitalization: TextCapitalization.characters,
-              maxLength: 12,
+              maxLength: 8,
               decoration: const InputDecoration(
-                labelText: 'Unique User ID',
+                labelText: 'Pairing Code',
-                hintText: 'Contoh: AB1C2D3E4F5G',
+                hintText: 'Contoh: A7K9Q2M4',
                 prefixIcon: Icon(Icons.link),
               )),
           FilledButton.icon(
@@ -192,7 +242,8 @@ class _PairingStatusCardState extends State<_PairingStatusCard> {
 
   Future<void> _load() async {
     setState(() => _loading = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final token = await sl<SecureStorage>().getAccessToken();
         if (token == null || token.isEmpty) {
           _active = false;
@@ -216,27 +267,18 @@ class _PairingStatusCardState extends State<_PairingStatusCard> {
               ? 'Ada undangan pairing dari ${data['pairedWithName'] ?? data['pairedWithEmail'] ?? 'Guardian'}.'
               : 'Invite sudah terkirim. Tunggu User membuka menu Pairing lalu Accept.';
         } else {
-        _status = 'Belum pairing. Bagikan Unique ID kamu ke Guardian.';
+          _status = 'Belum pairing. Bagikan pairing code aktif ke Guardian.';
         }
-    } on DioException catch (e) {
+      },
+      onError: (message) {
         _active = false;
         _data = null;
-      _status = _friendlyDioMessage(e,
+        _status = message;
-          fallback:
+      },
-              'Belum bisa mengecek server, tapi Unique ID tetap bisa dibagikan.');
+      fallback: 'Status pairing belum bisa dicek. Coba refresh lagi.',
-    } on TimeoutException {
+    );
-      _active = false;
-      _data = null;
-      _status =
-          'Server terlalu lama merespons status pairing. Cek backend masih running dan URL server benar.';
-    } catch (e) {
-      _active = false;
-      _data = null;
-      _status = 'Status pairing belum bisa dicek: $e';
-    } finally {
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   Future<void> _respond(bool accept) async {
     final pairingId = _data?['pairingId'];
@@ -245,7 +287,8 @@ class _PairingStatusCardState extends State<_PairingStatusCard> {
       return;
     }
     setState(() => _responding = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final res =
             await sl<ApiClient>().dio.post('/shared/pairing/respond', data: {
           'pairingId': pairingId,
@@ -256,15 +299,12 @@ class _PairingStatusCardState extends State<_PairingStatusCard> {
             res.data['message']?.toString() ??
                 (accept ? 'Pairing diterima.' : 'Pairing ditolak.'));
         await _load();
-    } on DioException catch (e) {
+      },
-      _snack(context,
+      onError: (message) => _snack(context, message),
-          _friendlyDioMessage(e, fallback: 'Gagal merespons pairing.'));
+      fallback: 'Gagal merespons pairing.',
-    } on TimeoutException {
+    );
-      _snack(context, 'Server terlalu lama merespons pairing.');
-    } finally {
     if (mounted) setState(() => _responding = false);
   }
-  }
 
   Future<void> _unpair() async {
     final confirmed = await showDialog<bool>(
@@ -287,20 +327,20 @@ class _PairingStatusCardState extends State<_PairingStatusCard> {
     );
     if (confirmed != true) return;
     setState(() => _responding = true);
-    try {
+    await runFriendlyAction(
+      () async {
         await sl<ApiClient>()
             .dio
             .delete('/shared/pairing/unpair')
             .timeout(const Duration(seconds: 8));
         _snack(context, 'Pairing telah diputus.');
         await _load();
-    } on DioException catch (e) {
+      },
-      _snack(
+      onError: (message) => _snack(context, message),
-          context, _friendlyDioMessage(e, fallback: 'Gagal memutus pairing.'));
+      fallback: 'Gagal memutus pairing.',
-    } finally {
+    );
     if (mounted) setState(() => _responding = false);
   }
-  }
 
   @override
   Widget build(BuildContext context) {
@@ -424,8 +464,12 @@ class _InfoCard extends StatelessWidget {
   final String title;
   final String value;
   final IconData icon;
+  final String? helper;
   const _InfoCard(
-      {required this.title, required this.value, required this.icon});
+      {required this.title,
+      required this.value,
+      required this.icon,
+      this.helper});
 
   @override
   Widget build(BuildContext context) {
@@ -445,7 +489,13 @@ class _InfoCard extends StatelessWidget {
                 Text(title),
                 SelectableText(value,
                     style: const TextStyle(
-                        fontSize: 22, fontWeight: FontWeight.w800))
+                        fontSize: 22, fontWeight: FontWeight.w800)),
+                if (helper != null) ...[
+                  const SizedBox(height: 4),
+                  Text(helper!,
+                      style: const TextStyle(
+                          color: Color(0xFF64748B), fontSize: 12)),
+                ],
               ])),
         ],
       ),
@@ -464,21 +514,11 @@ void _snack(BuildContext context, String message) {
   }
 }
 
-String _friendlyDioMessage(DioException e, {required String fallback}) {
+String _formatRemaining(int? seconds, DateTime? expiresAt) {
-  final data = e.response?.data;
+  final value = seconds ?? expiresAt?.difference(DateTime.now()).inSeconds;
-  if (data is Map && data['message'] != null) return data['message'].toString();
+  if (value == null || value <= 0) return 'sudah kadaluarsa';
-  if (e.response?.statusCode == 401) {
+  final minutes = value ~/ 60;
-    return 'Sesi login habis. Logout lalu login ulang.';
+  final secs = value % 60;
-  }
+  if (minutes <= 0) return '$secs detik';
-  if (e.response?.statusCode == 403) {
+  return '$minutes menit ${secs.toString().padLeft(2, '0')} detik';
-    return 'Role akun tidak cocok untuk fitur ini. Pastikan User/Guardian benar.';
-  }
-  if (e.type == DioExceptionType.connectionTimeout ||
-      e.type == DioExceptionType.receiveTimeout) {
-    return 'Server terlalu lama merespons. Pastikan backend masih running dan URL server benar.';
-  }
-  if (e.type == DioExceptionType.connectionError) {
-    return 'Tidak bisa ke server. Di Chrome pakai http://localhost:8080. Di HP pakai IP laptop/server, bukan localhost.';
-  }
-  return fallback;
 }

walkguide-mobile/walkguide_app/lib/features/server_connect/server_connect_server.dart

@@ -6,6 +6,7 @@ import 'package:go_router/go_router.dart';
 
 import '../../app/injection_container.dart';
 import '../../core/constants/app_constants.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 
 // ---------------------------------------------------------------------------
@@ -37,7 +38,8 @@ class _ServerConnectScreenState extends State<ServerConnectScreen> {
       _ok = false;
       _message = null;
     });
-    try {
+    await runFriendlyAction(
+      () async {
         final clean = AppConstants.normalizeServerUrl(_url.text);
         final res = await Dio(BaseOptions(
           connectTimeout: AppConstants.pingTimeout,
@@ -47,12 +49,12 @@ class _ServerConnectScreenState extends State<ServerConnectScreen> {
         _message = _ok
             ? 'Server aktif dan siap dipakai.'
             : 'Server merespons dengan format tidak valid.';
-    } catch (e) {
+      },
-      _message = 'Tidak bisa terhubung. Periksa URL dan jaringan.';
+      onError: (message) => _message = message,
-    } finally {
+      fallback: 'Tidak bisa terhubung. Periksa URL dan jaringan.',
+    );
     if (mounted) setState(() => _loading = false);
   }
-  }
 
   Future<void> _continue() async {
     final clean = AppConstants.normalizeServerUrl(_url.text);

walkguide-mobile/walkguide_app/lib/features/settings/user_settings_screen.dart

@@ -12,6 +12,7 @@ import 'package:go_router/go_router.dart';
 import '../../app/app_cubit.dart';
 import '../../app/injection_container.dart';
 import '../../core/constants/app_constants.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/services/haptic_service.dart';
 import '../../core/services/tts_service.dart';
@@ -78,9 +79,11 @@ class _UserSettingsScreenState extends State<UserSettingsScreen> {
   }
 
   Future<void> _loadSettings() async {
-    try {
+    await runFriendlyAction(
-      final res =
+      () async {
-          await _api.get('/user/settings').timeout(const Duration(seconds: 6));
+        final res = await _api
+            .get('/user/settings')
+            .timeout(const Duration(seconds: 6));
         final data = res.data['data'];
         if (data is Map) {
           _ttsLanguage = data['ttsLanguage']?.toString() ?? 'id-ID';
@@ -89,29 +92,33 @@ class _UserSettingsScreenState extends State<UserSettingsScreen> {
           _warnNoGuardian = data['warnNoGuardian'] as bool? ?? true;
           _hapticEnabled = data['hapticEnabled'] as bool? ?? true;
         }
-    } catch (_) {
+      },
-      // offline: tetap pakai default / nilai lokal
+      onError: (_) {},
-    }
+      fallback: 'Settings belum bisa dimuat.',
+    );
   }
 
   Future<void> _loadPairing() async {
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await _api
             .get('/shared/pairing/status')
             .timeout(const Duration(seconds: 5));
         final data = res.data['data'];
         if (data is Map) {
           _paired = data['status'] == 'ACTIVE';
-        final partner = data['pairedWithName'] ?? data['pairedWithEmail'] ?? '';
+          final partner =
+              data['pairedWithName'] ?? data['pairedWithEmail'] ?? '';
           _pairingStatus = _paired
               ? 'Terhubung dengan $partner'
               : data['status'] == 'PENDING'
                   ? 'Menunggu konfirmasi Guardian'
                   : 'Belum paired';
         }
-    } catch (_) {
+      },
-      _pairingStatus = 'Tidak bisa cek status';
+      onError: (_) => _pairingStatus = 'Tidak bisa cek status',
-    }
+      fallback: 'Tidak bisa cek status',
+    );
   }
 
   Future<void> _save() async {
@@ -122,7 +129,8 @@ class _UserSettingsScreenState extends State<UserSettingsScreen> {
       await sl<HapticService>().success();
     }
 
-    try {
+    await runFriendlyAction(
+      () async {
         await _api.put('/user/settings', data: {
           'ttsLanguage': _ttsLanguage,
           'ttsPitch': _ttsPitch,
@@ -132,24 +140,17 @@ class _UserSettingsScreenState extends State<UserSettingsScreen> {
         }).timeout(const Duration(seconds: 8));
         _snack('Settings tersimpan.');
         sl<TtsService>().speak('Settings disimpan.');
-    } on DioException catch (e) {
+      },
-      final msg = e.response?.data['message']?.toString() ??
+      onError: _snack,
-          'Server tidak merespons, settings lokal sudah diterapkan.';
+      fallback: 'Settings lokal sudah diterapkan, gagal sync ke server.',
-      _snack(msg);
+    );
-    } catch (_) {
-      _snack('Settings lokal sudah diterapkan, gagal sync ke server.');
-    } finally {
     if (mounted) setState(() => _saving = false);
   }
-  }
 
   Future<void> _logout() async {
     await sl<SecureStorage>().clearAll();
     context.read<AppCubit>().clearSession();
-    _api
+    _api.post('/auth/logout').timeout(const Duration(seconds: 3)).ignore();
-        .post('/auth/logout')
-        .timeout(const Duration(seconds: 3))
-        .ignore();
     if (mounted) context.go('/login');
   }
 

walkguide-mobile/walkguide_app/lib/features/sos/sos_screen.dart

@@ -8,6 +8,7 @@ import 'package:flutter/material.dart';
 import 'package:geolocator/geolocator.dart';
 
 import '../../app/injection_container.dart';
+import '../../core/errors/friendly_error.dart';
 import '../../core/network/api_client.dart';
 import '../../core/services/haptic_service.dart';
 import '../../core/services/tts_service.dart';
@@ -94,15 +95,17 @@ class _SosScreenState extends State<SosScreen>
   // ── API Calls ─────────────────────────────────────────────────────────────
 
   Future<Position?> _getPosition() async {
-    try {
+    return runFriendly<Position>(
+      () async {
         final permission = await Geolocator.requestPermission();
         if (permission == LocationPermission.denied ||
             permission == LocationPermission.deniedForever) return null;
         return await Geolocator.getCurrentPosition()
             .timeout(const Duration(seconds: 6));
-    } catch (_) {
+      },
-      return null;
+      onError: (_) {},
-    }
+      fallback: 'Lokasi belum bisa dibaca.',
+    );
   }
 
   Future<void> _loadHistory() async {
@@ -110,7 +113,8 @@ class _SosScreenState extends State<SosScreen>
       _historyLoading = true;
       _historyError = null;
     });
-    try {
+    await runFriendlyAction(
+      () async {
         final res = await _api.get('/user/sos-events',
             queryParameters: {'size': 10}).timeout(const Duration(seconds: 8));
         final data = res.data['data'];
@@ -122,15 +126,12 @@ class _SosScreenState extends State<SosScreen>
                 .toList()
             : <_SosEvent>[];
         setState(() => _events = items);
-    } on DioException catch (e) {
+      },
-      final msg = e.response?.data?['message']?.toString();
+      onError: (message) => setState(() => _historyError = message),
-      setState(() => _historyError = msg ?? 'Tidak bisa memuat riwayat SOS.');
+      fallback: 'Tidak bisa memuat riwayat SOS.',
-    } catch (_) {
+    );
-      setState(() => _historyError = 'Tidak bisa memuat riwayat SOS.');
-    } finally {
     if (mounted) setState(() => _historyLoading = false);
   }
-  }
 
   Future<void> _confirmAndSend() async {
     if (_sending) return;
@@ -178,7 +179,8 @@ class _SosScreenState extends State<SosScreen>
 
   Future<void> _sendSos() async {
     setState(() => _sending = true);
-    try {
+    await runFriendlyAction(
+      () async {
         final pos = await _getPosition();
         await _api.post('/user/sos', data: {
           'triggerType': 'BUTTON',
@@ -189,15 +191,12 @@ class _SosScreenState extends State<SosScreen>
         sl<TtsService>().speak('SOS terkirim ke Guardian.');
         _snack('SOS berhasil dikirim! Guardian sudah diberitahu.');
         await _loadHistory();
-    } on DioException catch (e) {
+      },
-      final msg = e.response?.data?['message']?.toString() ?? 'Gagal kirim SOS';
+      onError: _snack,
-      _snack(msg);
+      fallback: 'Gagal kirim SOS. Coba lagi sebentar.',
-    } catch (e) {
+    );
-      _snack('Gagal kirim SOS: $e');
-    } finally {
     if (mounted) setState(() => _sending = false);
   }
-  }
 
   // ── Build ──────────────────────────────────────────────────────────────────
 

walkguide-mobile/walkguide_app/lib/features/walk_guide/walk_guide_screen.dart

@@ -1,17 +1,14 @@
 // ignore_for_file: use_build_context_synchronously, deprecated_member_use
 
 import 'dart:async';
-import 'dart:convert';
 
 import 'package:camera/camera.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:go_router/go_router.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 
 import '../../app/injection_container.dart';
 import '../../core/ai/detection_export.dart';
-import '../../core/constants/app_constants.dart';
 import '../../core/network/api_client.dart';
 import '../../core/services/haptic_service.dart';
 import '../../core/services/location_reporter_service.dart';
@@ -36,6 +33,7 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
   bool _processingFrame = false;
   DateTime _lastInferenceAt = DateTime.fromMillisecondsSinceEpoch(0);
   DateTime _lastAlertAt = DateTime.fromMillisecondsSinceEpoch(0);
+  DateTime _lastModelWarningAt = DateTime.fromMillisecondsSinceEpoch(0);
 
   @override
   void dispose() {
@@ -59,7 +57,7 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
     }
     setState(() {
       _active = next;
-      _status = next ? 'Camera stream active. YOLO ready.' : 'Stopped';
+      _status = next ? _activeStatusText() : 'Stopped';
     });
     await sl<ApiClient>()
         .dio
@@ -67,13 +65,30 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
     sl<TtsService>().speak(next ? 'WalkGuide dimulai' : 'WalkGuide dihentikan');
   }
 
+  String _activeStatusText() {
+    final detector = sl<YoloDetector>();
+    if (kIsWeb) {
+      return 'Camera preview aktif, tapi YOLO TFLite tidak jalan di Chrome/web. Test AI harus lewat APK Android.';
+    }
+    if (!detector.isReady) {
+      return detector.lastError == null
+          ? 'YOLO model belum siap. Pastikan assets/models/yolov8n.tflite ada.'
+          : 'YOLO model error: ${detector.lastError}';
+    }
+    return 'Camera stream active. YOLO ready. Waiting for camera frames...';
+  }
+
   Future<void> _startCamera() async {
     if (_camera != null) return;
     try {
       final cameras = await availableCameras();
       if (cameras.isEmpty) return;
+      final backCamera = cameras.firstWhere(
+        (camera) => camera.lensDirection == CameraLensDirection.back,
+        orElse: () => cameras.first,
+      );
       final controller = CameraController(
-        cameras.first,
+        backCamera,
         ResolutionPreset.medium,
         enableAudio: false,
         imageFormatGroup: ImageFormatGroup.yuv420,
@@ -86,11 +101,13 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
       try {
         await controller.startImageStream(_onCameraImage);
       } catch (_) {
-        // Preview still works; manual Demo Detect remains available.
+        setState(() => _status = kIsWeb
+            ? 'Camera preview aktif, tapi image stream YOLO tidak tersedia di Chrome/web.'
+            : 'Camera preview aktif, tapi image stream belum tersedia.');
       }
       setState(() => _camera = controller);
     } catch (_) {
-      setState(() => _status = 'Camera unavailable. Demo mode active.');
+      setState(() => _status = 'Camera unavailable.');
     }
   }
 
@@ -118,15 +135,19 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
   }
 
   Future<void> _runYolo(CameraImage image) async {
-    final detection = await sl<YoloDetector>().detect(image);
+    final detector = sl<YoloDetector>();
-    if (detection == null || !mounted) return;
+    final detection = await detector.detect(image, confidenceThreshold: 0.25);
-    await _handleDetection(detection);
+    if (detection == null || !mounted) {
+      final now = DateTime.now();
+      if (now.difference(_lastModelWarningAt) > const Duration(seconds: 3)) {
+        _lastModelWarningAt = now;
+        setState(() => _status = detector.isReady
+            ? 'Scanning... ${detector.diagnosticsSummary}'
+            : 'YOLO model belum siap. Pastikan file model tersedia di assets/models.');
       }
-
+      return;
-  Future<void> _simulateObstacle() async {
+    }
-    final detection = await sl<YoloDetector>().detectFallback();
+    await _handleDetection(detection);
-    if (detection == null) return;
-    await _handleDetection(detection, forceAlert: true);
   }
 
   Future<void> _handleDetection(
@@ -135,7 +156,7 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
   }) async {
     _lastDetection = detection;
     setState(() => _status =
-        'Obstacle: ${detection.label} ${detection.directionName} ${detection.estimatedDistance}');
+        'Obstacle: ${ObstacleAnalyzer.spokenLabel(detection.label)} ${detection.directionName} ${detection.estimatedDistance}');
 
     final now = DateTime.now();
     if (!forceAlert &&
@@ -187,6 +208,12 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
                     const Center(
                         child: Icon(Icons.videocam_outlined,
                             color: Colors.white30, size: 96)),
+                  if (_lastDetection?.box != null)
+                    Positioned.fill(
+                      child: CustomPaint(
+                        painter: _DetectionOverlayPainter(_lastDetection!),
+                      ),
+                    ),
                   Positioned(
                       top: 16,
                       left: 16,
@@ -199,7 +226,7 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
                       left: 16,
                       child: _Pill(
                           text:
-                              '${_lastDetection!.label} ${_lastDetection!.directionName}',
+                              '${ObstacleAnalyzer.spokenLabel(_lastDetection!.label)} ${_lastDetection!.directionName}',
                           color: Colors.redAccent),
                     ),
                   Positioned(
@@ -223,12 +250,6 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
                       onPressed: _toggle,
                       icon: Icon(_active ? Icons.stop : Icons.play_arrow),
                       label: Text(_active ? 'Stop' : 'Start'))),
-              const SizedBox(width: 10),
-              Expanded(
-                  child: OutlinedButton.icon(
-                      onPressed: _simulateObstacle,
-                      icon: const Icon(Icons.radar),
-                      label: const Text('Demo Detect'))),
             ],
           ),
         ],
@@ -237,229 +258,74 @@ class _WalkGuideScreenState extends State<WalkGuideScreen> {
   }
 }
 
-// ---------------------------------------------------------------------------
+class _DetectionOverlayPainter extends CustomPainter {
-// AiBenchmarkScreen
+  final DetectionResult detection;
-// ---------------------------------------------------------------------------
+  const _DetectionOverlayPainter(this.detection);
-
-class AiBenchmarkScreen extends StatefulWidget {
-  const AiBenchmarkScreen({super.key});
 
   @override
-  State<AiBenchmarkScreen> createState() => _AiBenchmarkScreenState();
+  void paint(Canvas canvas, Size size) {
-}
+    final box = detection.box;
+    if (box == null) return;
 
-class _AiBenchmarkScreenState extends State<AiBenchmarkScreen> {
+    final sx = size.width / ObstacleAnalyzer.frameWidth;
-  static const _runsKey = 'ai_benchmark_runs';
+    final sy = size.height / ObstacleAnalyzer.frameHeight;
-  List<String> _models = const [];
+    final rect = Rect.fromLTRB(
-  String _selectedModel = AppConstants.yoloModelPath;
+      box.left * sx,
-  List<Map<String, dynamic>> _runs = const [];
+      box.top * sy,
-  bool _running = false;
+      box.right * sx,
-
+      box.bottom * sy,
-  @override
+    );
-  void initState() {
+    final color = switch (detection.direction) {
-    super.initState();
+      ObstacleDirection.center => const Color(0xFFEF4444),
-    _load();
+      ObstacleDirection.left => const Color(0xFFF59E0B),
-  }
+      ObstacleDirection.right => const Color(0xFFF59E0B),
-
-  Future<void> _load() async {
-    final models = await _discoverTfliteModels();
-    final selected = await AppConstants.getSelectedYoloModelPath();
-    final prefs = await SharedPreferences.getInstance();
-    final rawRuns = prefs.getStringList(_runsKey) ?? const [];
-    setState(() {
-      _models = models.isEmpty ? [selected] : models;
-      _selectedModel = models.contains(selected) ? selected : _models.first;
-      _runs = rawRuns
-          .map((e) => Map<String, dynamic>.from(jsonDecode(e) as Map))
-          .toList()
-          .reversed
-          .toList();
-    });
-  }
-
-  Future<void> _setModel(String? value) async {
-    if (value == null) return;
-    await AppConstants.setSelectedYoloModelPath(value);
-    sl<YoloDetector>().dispose();
-    await sl<YoloDetector>().init();
-    setState(() => _selectedModel = value);
-    _snack(context, 'Model aktif: ${value.split('/').last}');
-  }
-
-  Future<void> _runBenchmark() async {
-    setState(() => _running = true);
-    final started = DateTime.now();
-    final captureMs = await _measureCapture();
-
-    final inferenceWatch = Stopwatch()..start();
-    String label = 'person';
-    String direction = 'CENTER';
-    String distance = 'Demo';
-    final modelLoaded = sl<YoloDetector>().isReady;
-    final detection = await sl<YoloDetector>().detectSynthetic();
-    if (detection != null) {
-      label = detection.label;
-      direction = detection.directionName;
-      distance = detection.estimatedDistance;
-    }
-    inferenceWatch.stop();
-
-    final notifWatch = Stopwatch()..start();
-    final text = 'Obstacle $label di $direction, jarak $distance';
-    notifWatch.stop();
-
-    final ttsWatch = Stopwatch()..start();
-    try {
-      await sl<TtsService>()
-          .speakImmediate(text)
-          .timeout(const Duration(seconds: 3));
-    } catch (_) {}
-    ttsWatch.stop();
-
-    final run = {
-      'time': started.toIso8601String(),
-      'model': _selectedModel,
-      'modelLoaded': modelLoaded,
-      'captureMs': captureMs,
-      'inferenceMs': inferenceWatch.elapsedMilliseconds,
-      'notificationMs': notifWatch.elapsedMicroseconds / 1000,
-      'ttsMs': ttsWatch.elapsedMilliseconds,
-      'label': label,
-      'direction': direction,
     };
-    final prefs = await SharedPreferences.getInstance();
-    final next = [
-      jsonEncode(run),
-      ...((prefs.getStringList(_runsKey) ?? const []).take(24))
-    ];
-    await prefs.setStringList(_runsKey, next);
-    if (mounted) {
-      setState(() {
-        _runs = [run, ..._runs].take(25).toList();
-        _running = false;
-      });
-    }
-  }
 
-  Future<int> _measureCapture() async {
+    canvas.drawRRect(
-    final watch = Stopwatch()..start();
+      RRect.fromRectAndRadius(rect, const Radius.circular(10)),
-    CameraController? controller;
+      Paint()
-    try {
+        ..color = color.withValues(alpha: 0.12)
-      final cameras =
+        ..style = PaintingStyle.fill,
-          await availableCameras().timeout(const Duration(seconds: 3));
+    );
-      if (cameras.isNotEmpty) {
+    canvas.drawRRect(
-        controller = CameraController(cameras.first, ResolutionPreset.low,
+      RRect.fromRectAndRadius(rect, const Radius.circular(10)),
-            enableAudio: false);
+      Paint()
-        await controller.initialize().timeout(const Duration(seconds: 5));
+        ..color = color
-        await controller.takePicture().timeout(const Duration(seconds: 5));
+        ..strokeWidth = 3
-      }
+        ..style = PaintingStyle.stroke,
-    } catch (_) {
+    );
-      await Future<void>.delayed(const Duration(milliseconds: 16));
-    } finally {
-      await controller?.dispose();
-    }
-    watch.stop();
-    return watch.elapsedMilliseconds;
-  }
 
-  Future<void> _clearRuns() async {
+    final label =
-    final prefs = await SharedPreferences.getInstance();
+        '${ObstacleAnalyzer.spokenLabel(detection.label)} ${(detection.confidence * 100).round()}% ${detection.directionName}';
-    await prefs.remove(_runsKey);
+    final textPainter = TextPainter(
-    setState(() => _runs = const []);
+      text: TextSpan(
+        text: label,
+        style: const TextStyle(
+          color: Colors.white,
+          fontSize: 13,
+          fontWeight: FontWeight.w800,
+        ),
+      ),
+      textDirection: TextDirection.ltr,
+      maxLines: 1,
+    )..layout(maxWidth: size.width - 24);
+
+    final labelRect = Rect.fromLTWH(
+      rect.left.clamp(8.0, size.width - textPainter.width - 16),
+      (rect.top - textPainter.height - 10).clamp(8.0, size.height - 32),
+      textPainter.width + 14,
+      textPainter.height + 8,
+    );
+    canvas.drawRRect(
+      RRect.fromRectAndRadius(labelRect, const Radius.circular(8)),
+      Paint()..color = color.withValues(alpha: 0.92),
+    );
+    textPainter.paint(canvas, labelRect.topLeft + const Offset(7, 4));
   }
 
   @override
-  Widget build(BuildContext context) {
+  bool shouldRepaint(covariant _DetectionOverlayPainter oldDelegate) {
-    final hasRealModel = _models.any((model) => model.endsWith('.tflite'));
+    return oldDelegate.detection != detection;
-    return _Page(
-      title: 'AI Benchmark',
-      subtitle: 'Capture, model, notification text, and TTS timing',
-      child: ListView(
-        children: [
-          DropdownButtonFormField<String>(
-            value: _selectedModel,
-            decoration: const InputDecoration(labelText: 'Model file'),
-            items: [
-              for (final model in _models)
-                DropdownMenuItem(
-                    value: model, child: Text(model.split('/').last))
-            ],
-            onChanged: _setModel,
-          ),
-          if (!hasRealModel) ...[
-            const SizedBox(height: 10),
-            const _StatusBox(
-              success: false,
-              message:
-                  'Belum ada file .tflite di assets/models. Taruh 3-5 model di folder itu, lalu restart app untuk muncul di dropdown.',
-            ),
-          ],
-          const SizedBox(height: 12),
-          FilledButton.icon(
-            onPressed: _running ? null : _runBenchmark,
-            icon: _running
-                ? const SizedBox(
-                    width: 18,
-                    height: 18,
-                    child: CircularProgressIndicator(strokeWidth: 2))
-                : const Icon(Icons.play_arrow),
-            label: Text(_running ? 'Running benchmark...' : 'Run benchmark'),
-          ),
-          const SizedBox(height: 8),
-          OutlinedButton.icon(
-              onPressed: _clearRuns,
-              icon: const Icon(Icons.delete_outline),
-              label: const Text('Clear log')),
-          const SizedBox(height: 16),
-          for (final run in _runs) _BenchmarkCard(run: run),
-          if (_runs.isEmpty)
-            const _EmptyPanel(
-              icon: Icons.speed,
-              title: 'Belum Ada Log',
-              message:
-                  'Klik Run benchmark untuk mencatat waktu capture, model/inference, text notification, dan TTS.',
-            ),
-        ],
-      ),
-    );
-  }
-}
-
-class _BenchmarkCard extends StatelessWidget {
-  final Map<String, dynamic> run;
-  const _BenchmarkCard({required this.run});
-
-  @override
-  Widget build(BuildContext context) {
-    final time = DateTime.tryParse(run['time']?.toString() ?? '')?.toLocal();
-    return Card(
-      elevation: 0,
-      margin: const EdgeInsets.only(bottom: 10),
-      shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(12),
-          side: const BorderSide(color: Color(0xFFE2E8F0))),
-      child: Padding(
-        padding: const EdgeInsets.all(12),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Text(
-                time == null
-                    ? 'Benchmark run'
-                    : '${_two(time.hour)}:${_two(time.minute)}:${_two(time.second)}',
-                style: const TextStyle(fontWeight: FontWeight.w800)),
-            const SizedBox(height: 8),
-            Text(
-                'Model: ${run['model'].toString().split('/').last} (${run['modelLoaded'] == true ? 'loaded' : 'fallback'})'),
-            Text('Capture: ${run['captureMs']} ms'),
-            Text('Model/inference: ${run['inferenceMs']} ms'),
-            Text('Notification text: ${run['notificationMs']} ms'),
-            Text('TTS start: ${run['ttsMs']} ms'),
-            Text('Result: ${run['label']} ${run['direction']}'),
-          ],
-        ),
-      ),
-    );
   }
 }
 
@@ -533,88 +399,3 @@ class _Pill extends StatelessWidget {
     );
   }
 }
-
-class _StatusBox extends StatelessWidget {
-  final bool success;
-  final String message;
-  const _StatusBox({required this.success, required this.message});
-
-  @override
-  Widget build(BuildContext context) {
-    return DecoratedBox(
-      decoration: BoxDecoration(
-        color: success ? const Color(0xFFF0FDF4) : const Color(0xFFFEF2F2),
-        borderRadius: BorderRadius.circular(10),
-      ),
-      child: Padding(
-        padding: const EdgeInsets.all(12),
-        child: Text(message,
-            style: TextStyle(
-                color: success
-                    ? const Color(0xFF166534)
-                    : const Color(0xFF991B1B))),
-      ),
-    );
-  }
-}
-
-class _EmptyPanel extends StatelessWidget {
-  final IconData icon;
-  final String title;
-  final String message;
-  const _EmptyPanel(
-      {required this.icon, required this.title, required this.message});
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      width: double.infinity,
-      constraints: const BoxConstraints(minHeight: 180),
-      padding: const EdgeInsets.all(18),
-      decoration: BoxDecoration(
-          color: const Color(0xFFF8FAFC),
-          borderRadius: BorderRadius.circular(12),
-          border: Border.all(color: const Color(0xFFE2E8F0))),
-      child: Column(
-        mainAxisAlignment: MainAxisAlignment.center,
-        children: [
-          Icon(icon, color: const Color(0xFF64748B), size: 48),
-          const SizedBox(height: 12),
-          Text(title,
-              style:
-                  const TextStyle(fontWeight: FontWeight.w800, fontSize: 18)),
-          const SizedBox(height: 6),
-          Text(message, textAlign: TextAlign.center),
-        ],
-      ),
-    );
-  }
-}
-
-// ---------------------------------------------------------------------------
-// Helpers
-// ---------------------------------------------------------------------------
-
-Future<List<String>> _discoverTfliteModels() async {
-  try {
-    final manifestRaw = await rootBundle.loadString('AssetManifest.json');
-    final manifest = jsonDecode(manifestRaw) as Map<String, dynamic>;
-    final models = manifest.keys
-        .where((key) =>
-            key.startsWith('assets/models/') && key.endsWith('.tflite'))
-        .toList()
-      ..sort();
-    return models;
-  } catch (_) {
-    return const [];
-  }
-}
-
-String _two(int value) => value.toString().padLeft(2, '0');
-
-void _snack(BuildContext context, String message) {
-  if (context.mounted) {
-    ScaffoldMessenger.of(context)
-        .showSnackBar(SnackBar(content: Text(message)));
-  }
-}

walkguide-mobile/walkguide_app/lib/shared/widgets/feature_page.dart

@@ -0,0 +1,149 @@
+import 'package:flutter/material.dart';
+
+class FeaturePage extends StatelessWidget {
+  final String title;
+  final String subtitle;
+  final Widget child;
+  final Widget? trailing;
+
+  const FeaturePage({
+    super.key,
+    required this.title,
+    required this.subtitle,
+    required this.child,
+    this.trailing,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return SafeArea(
+      child: Padding(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              children: [
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        title,
+                        style:
+                            Theme.of(context).textTheme.headlineSmall?.copyWith(
+                                  fontWeight: FontWeight.w900,
+                                  color: const Color(0xFF0F172A),
+                                ),
+                      ),
+                      Text(
+                        subtitle,
+                        style: const TextStyle(color: Color(0xFF64748B)),
+                      ),
+                    ],
+                  ),
+                ),
+                if (trailing != null) trailing!,
+              ],
+            ),
+            const SizedBox(height: 16),
+            Expanded(child: child),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class FeatureEmptyPanel extends StatelessWidget {
+  final IconData icon;
+  final String title;
+  final String message;
+  final Widget? action;
+
+  const FeatureEmptyPanel({
+    super.key,
+    required this.icon,
+    required this.title,
+    required this.message,
+    this.action,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 360),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Icon(icon, size: 48, color: const Color(0xFF64748B)),
+            const SizedBox(height: 12),
+            Text(
+              title,
+              textAlign: TextAlign.center,
+              style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w800),
+            ),
+            const SizedBox(height: 6),
+            Text(
+              message,
+              textAlign: TextAlign.center,
+              style: const TextStyle(color: Color(0xFF64748B), height: 1.35),
+            ),
+            if (action != null) ...[
+              const SizedBox(height: 16),
+              action!,
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class FeatureErrorPanel extends StatelessWidget {
+  final String message;
+  final VoidCallback? onRetry;
+
+  const FeatureErrorPanel({
+    super.key,
+    required this.message,
+    this.onRetry,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Container(
+        width: double.infinity,
+        constraints: const BoxConstraints(maxWidth: 420),
+        padding: const EdgeInsets.all(18),
+        decoration: BoxDecoration(
+          color: const Color(0xFFFEF2F2),
+          borderRadius: BorderRadius.circular(18),
+          border: Border.all(color: const Color(0xFFFECACA)),
+        ),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const Icon(Icons.error_outline, color: Color(0xFFDC2626), size: 34),
+            const SizedBox(height: 10),
+            Text(
+              message,
+              textAlign: TextAlign.center,
+              style: const TextStyle(color: Color(0xFF991B1B), height: 1.35),
+            ),
+            if (onRetry != null) ...[
+              const SizedBox(height: 12),
+              FilledButton.icon(
+                onPressed: onRetry,
+                icon: const Icon(Icons.refresh),
+                label: const Text('Coba lagi'),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}