tugas baru

internal/store/user_store.go

@@ -0,0 +1,64 @@
+package store
+
+import (
+	"context"
+	"sync"
+
+	"5803025048/W04/internal/models"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5"
+)
+
+type UserStore struct {
+	conn *pgx.Conn
+	mu   *sync.Mutex
+}
+
+func NewUserStore(conn *pgx.Conn, optMu ...*sync.Mutex) *UserStore {
+	var mu *sync.Mutex
+	if len(optMu) > 0 && optMu[0] != nil {
+		mu = optMu[0]
+	} else {
+		mu = &sync.Mutex{}
+	}
+	return &UserStore{conn: conn, mu: mu}
+}
+
+func (s *UserStore) Create(ctx context.Context, user *models.User) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if user.ID == "" {
+		user.ID = uuid.New().String()
+	}
+
+	query := `INSERT INTO users (id, username, password_hash) VALUES ($1, $2, $3)`
+	_, err := s.conn.Exec(ctx, query, user.ID, user.Username, user.PasswordHash)
+	return err
+}
+
+func (s *UserStore) GetByUsername(ctx context.Context, username string) (*models.User, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	var u models.User
+	query := `SELECT id, username, password_hash FROM users WHERE username = $1`
+	err := s.conn.QueryRow(ctx, query, username).Scan(&u.ID, &u.Username, &u.PasswordHash)
+	if err != nil {
+		return nil, err
+	}
+	return &u, nil
+}
+
+func (s *UserStore) GetByID(ctx context.Context, id string) (*models.User, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	var u models.User
+	query := `SELECT id, username, password_hash FROM users WHERE id = $1`
+	err := s.conn.QueryRow(ctx, query, id).Scan(&u.ID, &u.Username, &u.PasswordHash)
+	if err != nil {
+		return nil, err
+	}
+	return &u, nil
+}