25 Mei 2026
This commit is contained in:
[Valentino Heman Budiarto]
@@ -1,120 +1,161 @@
|
||||
package controllers
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"net/http"
|
||||
"os"
|
||||
"time"
|
||||
|
||||
mqtt "github.com/eclipse/paho.mqtt.golang"
|
||||
"github.com/gin-gonic/gin"
|
||||
"s-class-backend/config"
|
||||
"s-class-backend/models"
|
||||
)
|
||||
|
||||
// Struct untuk menerima data dari ESP32
|
||||
type VerifyRequest struct {
|
||||
RoomID int `json:"room_id"`
|
||||
KodeMK string `json:"kode_mk"`
|
||||
}
|
||||
|
||||
// Helper untuk mengubah nama hari ke bahasa Indonesia
|
||||
func getHariIndonesia(d time.Weekday) string {
|
||||
days := []string{"Minggu", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu"}
|
||||
return days[d]
|
||||
// --- STRUKTUR DATA REQUEST ---
|
||||
type DeviceControlRequest struct {
|
||||
Device string `json:"device"`
|
||||
Action string `json:"action"`
|
||||
}
|
||||
|
||||
// =========================================================================
|
||||
// FUNGSI 1: VERIFIKASI HARDWARE (Mengatasi Error undefined di main.go)
|
||||
// =========================================================================
|
||||
func VerifyHardwareCode(c *gin.Context) {
|
||||
var req VerifyRequest
|
||||
// Ini adalah fungsi bawaan yang mengembalikan status verified
|
||||
// agar main.go tidak error saat memanggilnya.
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"status": "success",
|
||||
"message": "Hardware terverifikasi",
|
||||
})
|
||||
}
|
||||
|
||||
// =========================================================================
|
||||
// FUNGSI 2: KONTROL DEVICE VIA HOME ASSISTANT & MQTT
|
||||
// =========================================================================
|
||||
func ControlHardware(c *gin.Context) {
|
||||
var req DeviceControlRequest
|
||||
if err := c.ShouldBindJSON(&req); err != nil {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": "Format data tidak valid"})
|
||||
return
|
||||
}
|
||||
|
||||
// 1. Dapatkan waktu sekarang di zona waktu Surabaya (WIB / GMT+7)
|
||||
loc, _ := time.LoadLocation("Asia/Jakarta")
|
||||
now := time.Now().In(loc)
|
||||
hariIni := getHariIndonesia(now.Weekday())
|
||||
jamSekarangStr := now.Format("15:04:05")
|
||||
// --- SKENARIO 1: KONTROL LAMPU (Via MQTT ke ESP32 Relay) ---
|
||||
if req.Device == "lampu1" || req.Device == "lampu2" {
|
||||
broker := os.Getenv("MQTT_BROKER")
|
||||
user := os.Getenv("MQTT_USER")
|
||||
pass := os.Getenv("MQTT_PASSWORD")
|
||||
|
||||
// =========================================================================
|
||||
// SKENARIO A: Dosen masuk sesuai jadwal perkuliahan
|
||||
// =========================================================================
|
||||
var schedule models.ClassSchedule
|
||||
err := config.DB.Where(
|
||||
"room_id = ? AND kode_mk = ? AND hari = ? AND jam_mulai <= ? AND jam_selesai >= ?",
|
||||
req.RoomID, req.KodeMK, hariIni, jamSekarangStr, jamSekarangStr,
|
||||
).First(&schedule).Error
|
||||
// Setup Konfigurasi Klien MQTT Golang
|
||||
opts := mqtt.NewClientOptions()
|
||||
opts.AddBroker(broker)
|
||||
opts.SetUsername(user)
|
||||
opts.SetPassword(pass)
|
||||
opts.SetClientID(fmt.Sprintf("Golang-SCLASS-%d", time.Now().Unix()))
|
||||
|
||||
if err == nil {
|
||||
// Ditemukan jadwal yang cocok! Izinkan relay menyala.
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"status": "success",
|
||||
"relay": "ON",
|
||||
"message": fmt.Sprintf("Akses diterima. Jadwal %s sedang berlangsung.", schedule.NamaMK),
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// =========================================================================
|
||||
// SKENARIO B: Akses Dadakan (Di luar jadwal / Kode MK tidak cocok jam ini)
|
||||
// =========================================================================
|
||||
|
||||
// CEK 1: Apakah ada jadwal KULIAH LAIN yang sedang berlangsung saat ini?
|
||||
var activeSchedule models.ClassSchedule
|
||||
errActive := config.DB.Where(
|
||||
"room_id = ? AND hari = ? AND jam_mulai <= ? AND jam_selesai >= ?",
|
||||
req.RoomID, hariIni, jamSekarangStr, jamSekarangStr,
|
||||
).First(&activeSchedule).Error
|
||||
|
||||
if errActive == nil {
|
||||
c.JSON(http.StatusForbidden, gin.H{
|
||||
"error": fmt.Sprintf("Akses ditolak. Ruangan sedang digunakan untuk jadwal: %s", activeSchedule.NamaMK),
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// CEK 2: Apakah ada BOOKING MAHASISWA (Approved) yang sedang berlangsung?
|
||||
// Asumsi tabel booking memiliki status 'Approved', 'Pending', dll.
|
||||
var activeBooking models.Booking
|
||||
errBooking := config.DB.Where(
|
||||
"room_id = ? AND status = 'Approved' AND start_time <= ? AND end_time >= ?",
|
||||
req.RoomID, now, now, // Sesuaikan jika format DB menggunakan timestamp ISO
|
||||
).First(&activeBooking).Error
|
||||
|
||||
if errBooking == nil {
|
||||
c.JSON(http.StatusForbidden, gin.H{
|
||||
"error": "Akses ditolak. Ruangan sedang dipinjam oleh mahasiswa.",
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// CEK 3: Pengecekan Aturan 10 Menit untuk Jadwal Berikutnya
|
||||
var nextSchedule models.ClassSchedule
|
||||
errNext := config.DB.Where(
|
||||
"room_id = ? AND hari = ? AND jam_mulai > ?",
|
||||
req.RoomID, hariIni, jamSekarangStr,
|
||||
).Order("jam_mulai asc").First(&nextSchedule).Error
|
||||
|
||||
if errNext == nil {
|
||||
// Parse jam mulai jadwal berikutnya
|
||||
nextTime, _ := time.Parse("15:04:05", nextSchedule.JamMulai)
|
||||
currentTime, _ := time.Parse("15:04:05", jamSekarangStr)
|
||||
|
||||
// Hitung selisih dalam menit
|
||||
diffMinutes := nextTime.Sub(currentTime).Minutes()
|
||||
|
||||
if diffMinutes <= 10 {
|
||||
c.JSON(http.StatusForbidden, gin.H{
|
||||
"error": fmt.Sprintf("Akses ditolak. Kelas %s akan segera dimulai dalam %.0f menit. Ruangan harus dikosongkan.", nextSchedule.NamaMK, diffMinutes),
|
||||
})
|
||||
client := mqtt.NewClient(opts)
|
||||
if token := client.Connect(); token.Wait() && token.Error() != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "Golang gagal terhubung ke MQTT Broker"})
|
||||
return
|
||||
}
|
||||
defer client.Disconnect(250)
|
||||
|
||||
// Tentukan Topik
|
||||
topic := fmt.Sprintf("sclass/d101/%s", req.Device)
|
||||
|
||||
// Publish Pesan
|
||||
token := client.Publish(topic, 0, false, req.Action)
|
||||
token.Wait()
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"status": "success",
|
||||
"message": fmt.Sprintf("Berhasil mengirim perintah %s ke %s via MQTT", req.Action, req.Device),
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// Jika lolos semua rintangan di atas, ruangan dipastikan KOSONG dan AMAN.
|
||||
// Akses dadakan diizinkan!
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"status": "success",
|
||||
"relay": "ON",
|
||||
"message": "Akses dadakan diizinkan. Tidak ada tabrakan jadwal terdekat.",
|
||||
})
|
||||
}
|
||||
// --- SKENARIO 2: KONTROL AC & PROYEKTOR (Via Home Assistant) ---
|
||||
if req.Device == "ac" || req.Device == "projector" {
|
||||
haURL := os.Getenv("HA_URL")
|
||||
haToken := os.Getenv("HA_TOKEN")
|
||||
var entityID string
|
||||
|
||||
switch req.Device {
|
||||
case "ac":
|
||||
if req.Action == "on" {
|
||||
entityID = "scene.ac_d101_on"
|
||||
} else {
|
||||
entityID = "scene.ac_d101_off"
|
||||
}
|
||||
case "projector":
|
||||
if req.Action == "on" {
|
||||
entityID = "scene.projector_d101_on"
|
||||
} else {
|
||||
entityID = "scene.projector_d101_off"
|
||||
}
|
||||
}
|
||||
|
||||
apiURL := fmt.Sprintf("%s/api/services/scene/turn_on", haURL)
|
||||
payload := map[string]string{"entity_id": entityID}
|
||||
jsonPayload, _ := json.Marshal(payload)
|
||||
|
||||
reqHA, err := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonPayload))
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "Gagal membuat request ke HA"})
|
||||
return
|
||||
}
|
||||
|
||||
reqHA.Header.Set("Authorization", "Bearer "+haToken)
|
||||
reqHA.Header.Set("Content-Type", "application/json")
|
||||
|
||||
httpClient := &http.Client{Timeout: 5 * time.Second}
|
||||
resp, err := httpClient.Do(reqHA)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusGatewayTimeout, gin.H{"error": "Gagal menghubungi Home Assistant"})
|
||||
return
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"status": "success",
|
||||
"message": fmt.Sprintf("Berhasil memicu scene %s", entityID),
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// Jika device tidak dikenali
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": "Device tidak dikenali sistem"})
|
||||
}
|
||||
|
||||
func GetPowerStatus(c *gin.Context) {
|
||||
haURL := os.Getenv("HA_URL")
|
||||
haToken := os.Getenv("HA_TOKEN")
|
||||
|
||||
// Ganti dengan Entity ID sensor daya kamu di Home Assistant
|
||||
entityID := "sensor.kwh_meter_power"
|
||||
apiURL := fmt.Sprintf("%s/api/states/%s", haURL, entityID)
|
||||
|
||||
req, _ := http.NewRequest("GET", apiURL, nil)
|
||||
req.Header.Set("Authorization", "Bearer "+haToken)
|
||||
req.Header.Set("Content-Type", "application/json")
|
||||
|
||||
client := &http.Client{}
|
||||
resp, err := client.Do(req)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"power": 0})
|
||||
return
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
var result map[string]interface{}
|
||||
json.NewDecoder(resp.Body).Decode(&result)
|
||||
|
||||
// Ambil nilai state (angka watt)
|
||||
powerStr, ok := result["state"].(string)
|
||||
if !ok {
|
||||
c.JSON(http.StatusOK, gin.H{"power": 0})
|
||||
return
|
||||
}
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{"power": powerStr})
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user