first commit

backend/internal/users/store.go

@@ -0,0 +1,100 @@
+package users
+
+import (
+	"context"
+	"errors"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+var ErrNotFound = errors.New("user not found")
+
+type Store struct {
+	db *pgxpool.Pool
+}
+
+func NewStore(db *pgxpool.Pool) Store {
+	return Store{db: db}
+}
+
+func (s Store) FindByEmail(ctx context.Context, email string) (User, error) {
+	row := s.db.QueryRow(ctx, `
+		SELECT id::text, email, name, password_hash, role, status, created_at, updated_at
+		FROM users
+		WHERE lower(email) = lower($1)
+	`, strings.TrimSpace(email))
+
+	return scanUser(row)
+}
+
+func (s Store) FindByID(ctx context.Context, id string) (User, error) {
+	row := s.db.QueryRow(ctx, `
+		SELECT id::text, email, name, password_hash, role, status, created_at, updated_at
+		FROM users
+		WHERE id = $1
+	`, id)
+
+	return scanUser(row)
+}
+
+func (s Store) List(ctx context.Context) ([]User, error) {
+	rows, err := s.db.Query(ctx, `
+		SELECT id::text, email, name, password_hash, role, status, created_at, updated_at
+		FROM users
+		ORDER BY created_at DESC
+	`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	users := []User{}
+	for rows.Next() {
+		user, err := scanUser(rows)
+		if err != nil {
+			return nil, err
+		}
+		users = append(users, user)
+	}
+
+	return users, rows.Err()
+}
+
+func (s Store) UpsertSuperAdmin(ctx context.Context, email string, passwordHash string) (User, error) {
+	row := s.db.QueryRow(ctx, `
+		INSERT INTO users (email, name, password_hash, role, status)
+		VALUES ($1, 'Super Admin', $2, 'super_admin', 'active')
+		ON CONFLICT (email)
+		DO UPDATE SET
+			password_hash = EXCLUDED.password_hash,
+			role = 'super_admin',
+			status = 'active',
+			updated_at = now()
+		RETURNING id::text, email, name, password_hash, role, status, created_at, updated_at
+	`, strings.TrimSpace(email), passwordHash)
+
+	return scanUser(row)
+}
+
+func scanUser(row pgx.Row) (User, error) {
+	var user User
+	err := row.Scan(
+		&user.ID,
+		&user.Email,
+		&user.Name,
+		&user.PasswordHash,
+		&user.Role,
+		&user.Status,
+		&user.CreatedAt,
+		&user.UpdatedAt,
+	)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return User{}, ErrNotFound
+	}
+	if err != nil {
+		return User{}, err
+	}
+	return user, nil
+}