feat: implement Iteration 0 foundation (backend + Flutter client)
Backend (Go): - Project structure with chi router, pgxpool, goose migrations - JWT auth (access/refresh tokens) with Firebase token verification - NoopTokenVerifier for local dev without Firebase credentials - PostgreSQL user repository with atomic profile updates (transactions) - Mifflin-St Jeor calorie calculation based on profile data - REST API: POST /auth/login, /auth/refresh, /auth/logout, GET/PUT /profile, GET /health - Middleware: auth, CORS (localhost wildcard), logging, recovery, request_id - Unit tests (51 passing) and integration tests (testcontainers) - Docker Compose setup with postgres healthcheck and graceful shutdown Flutter client: - Riverpod state management with GoRouter navigation - Firebase Auth (email/password + Google sign-in with web popup support) - Platform-aware API URLs (web/Android/iOS) - Dio HTTP client with JWT auth interceptor and concurrent refresh handling - Secure token storage - Screens: Login, Register, Home (tabs: Menu, Recipes, Products, Profile) - Unit tests (17 passing) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
dbastrikin
218
backend/internal/user/repository.go
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218
backend/internal/user/repository.go
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@@ -0,0 +1,218 @@
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package user
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import (
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"context"
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"encoding/json"
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"fmt"
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"strings"
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"time"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// UserRepository defines the persistence interface for user data.
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type UserRepository interface {
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UpsertByFirebaseUID(ctx context.Context, uid, email, name, avatarURL string) (*User, error)
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GetByID(ctx context.Context, id string) (*User, error)
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Update(ctx context.Context, id string, req UpdateProfileRequest) (*User, error)
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UpdateInTx(ctx context.Context, id string, profileReq UpdateProfileRequest, caloriesReq *UpdateProfileRequest) (*User, error)
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SetRefreshToken(ctx context.Context, id, token string, expiresAt time.Time) error
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FindByRefreshToken(ctx context.Context, token string) (*User, error)
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ClearRefreshToken(ctx context.Context, id string) error
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}
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type Repository struct {
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pool *pgxpool.Pool
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}
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func NewRepository(pool *pgxpool.Pool) *Repository {
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return &Repository{pool: pool}
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}
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func (r *Repository) UpsertByFirebaseUID(ctx context.Context, uid, email, name, avatarURL string) (*User, error) {
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var avatarPtr *string
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if avatarURL != "" {
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avatarPtr = &avatarURL
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}
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query := `
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INSERT INTO users (firebase_uid, email, name, avatar_url)
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VALUES ($1, $2, $3, $4)
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ON CONFLICT (firebase_uid) DO UPDATE SET
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email = EXCLUDED.email,
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name = CASE WHEN users.name = '' THEN EXCLUDED.name ELSE users.name END,
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avatar_url = COALESCE(EXCLUDED.avatar_url, users.avatar_url),
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updated_at = now()
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RETURNING id, firebase_uid, email, name, avatar_url,
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height_cm, weight_kg, age, gender, activity, goal, daily_calories,
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plan, preferences, created_at, updated_at`
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return r.scanUser(r.pool.QueryRow(ctx, query, uid, email, name, avatarPtr))
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}
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func (r *Repository) GetByID(ctx context.Context, id string) (*User, error) {
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query := `
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SELECT id, firebase_uid, email, name, avatar_url,
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height_cm, weight_kg, age, gender, activity, goal, daily_calories,
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plan, preferences, created_at, updated_at
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FROM users WHERE id = $1`
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return r.scanUser(r.pool.QueryRow(ctx, query, id))
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}
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func (r *Repository) Update(ctx context.Context, id string, req UpdateProfileRequest) (*User, error) {
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query, args := buildUpdateQuery(id, req)
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if query == "" {
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return r.GetByID(ctx, id)
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}
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return r.scanUser(r.pool.QueryRow(ctx, query, args...))
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}
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// buildUpdateQuery constructs a dynamic UPDATE query from the request fields.
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// Returns empty string if there are no fields to update.
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func buildUpdateQuery(id string, req UpdateProfileRequest) (string, []interface{}) {
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setClauses := []string{}
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args := []interface{}{}
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argIdx := 1
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if req.Name != nil {
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setClauses = append(setClauses, fmt.Sprintf("name = $%d", argIdx))
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args = append(args, *req.Name)
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argIdx++
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}
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if req.HeightCM != nil {
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setClauses = append(setClauses, fmt.Sprintf("height_cm = $%d", argIdx))
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args = append(args, *req.HeightCM)
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argIdx++
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}
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if req.WeightKG != nil {
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setClauses = append(setClauses, fmt.Sprintf("weight_kg = $%d", argIdx))
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args = append(args, *req.WeightKG)
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argIdx++
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}
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if req.Age != nil {
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setClauses = append(setClauses, fmt.Sprintf("age = $%d", argIdx))
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args = append(args, *req.Age)
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argIdx++
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}
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if req.Gender != nil {
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setClauses = append(setClauses, fmt.Sprintf("gender = $%d", argIdx))
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args = append(args, *req.Gender)
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argIdx++
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}
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if req.Activity != nil {
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setClauses = append(setClauses, fmt.Sprintf("activity = $%d", argIdx))
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args = append(args, *req.Activity)
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argIdx++
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}
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if req.Goal != nil {
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setClauses = append(setClauses, fmt.Sprintf("goal = $%d", argIdx))
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args = append(args, *req.Goal)
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argIdx++
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}
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if req.Preferences != nil {
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setClauses = append(setClauses, fmt.Sprintf("preferences = $%d", argIdx))
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args = append(args, string(*req.Preferences))
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argIdx++
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}
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if req.DailyCalories != nil {
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setClauses = append(setClauses, fmt.Sprintf("daily_calories = $%d", argIdx))
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args = append(args, *req.DailyCalories)
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argIdx++
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}
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if len(setClauses) == 0 {
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return "", nil
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}
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setClauses = append(setClauses, "updated_at = now()")
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query := fmt.Sprintf(`
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UPDATE users SET %s
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WHERE id = $%d
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RETURNING id, firebase_uid, email, name, avatar_url,
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height_cm, weight_kg, age, gender, activity, goal, daily_calories,
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plan, preferences, created_at, updated_at`,
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strings.Join(setClauses, ", "), argIdx)
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args = append(args, id)
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return query, args
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}
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func (r *Repository) UpdateInTx(ctx context.Context, id string, profileReq UpdateProfileRequest, caloriesReq *UpdateProfileRequest) (*User, error) {
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tx, err := r.pool.BeginTx(ctx, pgx.TxOptions{})
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if err != nil {
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return nil, fmt.Errorf("begin tx: %w", err)
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}
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defer tx.Rollback(ctx)
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// First update: profile fields
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query, args := buildUpdateQuery(id, profileReq)
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if query == "" {
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return nil, fmt.Errorf("no fields to update")
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}
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updated, err := r.scanUser(tx.QueryRow(ctx, query, args...))
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if err != nil {
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return nil, fmt.Errorf("update profile: %w", err)
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}
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// Second update: calories (if provided)
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if caloriesReq != nil {
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query, args = buildUpdateQuery(id, *caloriesReq)
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if query != "" {
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updated, err = r.scanUser(tx.QueryRow(ctx, query, args...))
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if err != nil {
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return nil, fmt.Errorf("update calories: %w", err)
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}
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}
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}
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if err := tx.Commit(ctx); err != nil {
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return nil, fmt.Errorf("commit tx: %w", err)
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}
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return updated, nil
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}
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func (r *Repository) SetRefreshToken(ctx context.Context, id, token string, expiresAt time.Time) error {
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query := `UPDATE users SET refresh_token = $2, token_expires_at = $3, updated_at = now() WHERE id = $1`
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_, err := r.pool.Exec(ctx, query, id, token, expiresAt)
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return err
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}
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func (r *Repository) FindByRefreshToken(ctx context.Context, token string) (*User, error) {
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query := `
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SELECT id, firebase_uid, email, name, avatar_url,
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height_cm, weight_kg, age, gender, activity, goal, daily_calories,
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plan, preferences, created_at, updated_at
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FROM users
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WHERE refresh_token = $1 AND token_expires_at > now()`
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return r.scanUser(r.pool.QueryRow(ctx, query, token))
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}
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func (r *Repository) ClearRefreshToken(ctx context.Context, id string) error {
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query := `UPDATE users SET refresh_token = NULL, token_expires_at = NULL, updated_at = now() WHERE id = $1`
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_, err := r.pool.Exec(ctx, query, id)
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return err
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}
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type scannable interface {
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Scan(dest ...interface{}) error
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}
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func (r *Repository) scanUser(row scannable) (*User, error) {
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var u User
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var prefs []byte
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err := row.Scan(
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&u.ID, &u.FirebaseUID, &u.Email, &u.Name, &u.AvatarURL,
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&u.HeightCM, &u.WeightKG, &u.Age, &u.Gender, &u.Activity, &u.Goal, &u.DailyCalories,
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&u.Plan, &prefs, &u.CreatedAt, &u.UpdatedAt,
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)
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if err != nil {
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return nil, fmt.Errorf("scan user: %w", err)
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}
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u.Preferences = json.RawMessage(prefs)
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return &u, nil
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}
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