Per-user podcasts, file uploads, RSS images, Docker support

- Each user owns a podcast: podcast title/author/image on users table
- Episodes scoped by user_id with context-based auth
- Audio file upload replaces URL linking, served from /uploads/
- Podcast and per-episode images with itunes:image in RSS
- RSS per-user via ?user=N, dashboard shows user-specific feed URL
- Settings form for title + author + image per user
- Docker multi-stage build (golang:1.25-alpine / alpine:3.21)
- Removed PODSTALK_TITLE/AUTHOR env vars

store/store.go

@@ -8,14 +8,18 @@ import (
 )
 
 type User struct {
-	ID           int64
-	Email        string
-	PasswordHash string
-	CreatedAt    time.Time
+	ID             int64
+	Email          string
+	PasswordHash   string
+	PodcastTitle   string
+	PodcastImage   string
+	PodcastAuthor  string
+	CreatedAt      time.Time
 }
 
 type Episode struct {
 	ID          int64
+	UserID      int64
 	Title       string
 	Description string
 	AudioPath   string
@@ -48,11 +52,15 @@ func migrate(db *sql.DB) error {
 		id INTEGER PRIMARY KEY AUTOINCREMENT,
 		email TEXT NOT NULL UNIQUE,
 		password_hash TEXT NOT NULL,
+		podcast_title TEXT NOT NULL DEFAULT '',
+		podcast_image TEXT NOT NULL DEFAULT '',
+		podcast_author TEXT NOT NULL DEFAULT '',
 		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
 	);
 
 	CREATE TABLE IF NOT EXISTS episodes (
 		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		user_id INTEGER NOT NULL REFERENCES users(id),
 		title TEXT NOT NULL,
 		description TEXT NOT NULL DEFAULT '',
 		audio_path TEXT NOT NULL DEFAULT '',
@@ -60,11 +68,6 @@ func migrate(db *sql.DB) error {
 		published_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
 		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
 	);
-
-	CREATE TABLE IF NOT EXISTS settings (
-		key TEXT PRIMARY KEY,
-		value TEXT NOT NULL DEFAULT ''
-	);
 	`
 	_, err := db.Exec(schema)
 	return err
@@ -92,17 +95,34 @@ func (s *Store) CreateUser(email, passwordHash string) (int64, error) {
 
 func (s *Store) UserByEmail(email string) (*User, error) {
 	u := &User{}
-	err := s.db.QueryRow("SELECT id, email, password_hash, created_at FROM users WHERE email = ?", email).
-		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.CreatedAt)
+	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_image, podcast_author, created_at FROM users WHERE email = ?", email).
+		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastImage, &u.PodcastAuthor, &u.CreatedAt)
 	if err != nil {
 		return nil, err
 	}
 	return u, nil
 }
 
+func (s *Store) GetUser(id int64) (*User, error) {
+	u := &User{}
+	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_image, podcast_author, created_at FROM users WHERE id = ?", id).
+		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastImage, &u.PodcastAuthor, &u.CreatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return u, nil
+}
+
+func (s *Store) UpdateUserPodcast(id int64, title, image, author string) error {
+	_, err := s.db.Exec("UPDATE users SET podcast_title=?, podcast_image=?, podcast_author=? WHERE id=?",
+		title, image, author, id)
+	return err
+}
+
 // --- Episodes ---
-func (s *Store) ListEpisodes() ([]Episode, error) {
-	rows, err := s.db.Query("SELECT id, title, description, audio_path, image_path, published_at, created_at FROM episodes ORDER BY published_at DESC")
+
+func (s *Store) ListEpisodes(userID int64) ([]Episode, error) {
+	rows, err := s.db.Query("SELECT id, user_id, title, description, audio_path, image_path, published_at, created_at FROM episodes WHERE user_id = ? ORDER BY published_at DESC", userID)
 	if err != nil {
 		return nil, err
 	}
@@ -111,7 +131,7 @@ func (s *Store) ListEpisodes() ([]Episode, error) {
 	var eps []Episode
 	for rows.Next() {
 		var e Episode
-		if err := rows.Scan(&e.ID, &e.Title, &e.Description, &e.AudioPath, &e.ImagePath, &e.PublishedAt, &e.CreatedAt); err != nil {
+		if err := rows.Scan(&e.ID, &e.UserID, &e.Title, &e.Description, &e.AudioPath, &e.ImagePath, &e.PublishedAt, &e.CreatedAt); err != nil {
 			return nil, err
 		}
 		eps = append(eps, e)
@@ -121,17 +141,17 @@ func (s *Store) ListEpisodes() ([]Episode, error) {
 
 func (s *Store) GetEpisode(id int64) (*Episode, error) {
 	e := &Episode{}
-	err := s.db.QueryRow("SELECT id, title, description, audio_path, image_path, published_at, created_at FROM episodes WHERE id = ?", id).
-		Scan(&e.ID, &e.Title, &e.Description, &e.AudioPath, &e.ImagePath, &e.PublishedAt, &e.CreatedAt)
+	err := s.db.QueryRow("SELECT id, user_id, title, description, audio_path, image_path, published_at, created_at FROM episodes WHERE id = ?", id).
+		Scan(&e.ID, &e.UserID, &e.Title, &e.Description, &e.AudioPath, &e.ImagePath, &e.PublishedAt, &e.CreatedAt)
 	if err != nil {
 		return nil, err
 	}
 	return e, nil
 }
 
-func (s *Store) CreateEpisode(title, description, audioPath, imagePath string, publishedAt time.Time) (int64, error) {
-	res, err := s.db.Exec("INSERT INTO episodes (title, description, audio_path, image_path, published_at) VALUES (?, ?, ?, ?, ?)",
-		title, description, audioPath, imagePath, publishedAt)
+func (s *Store) CreateEpisode(userID int64, title, description, audioPath, imagePath string, publishedAt time.Time) (int64, error) {
+	res, err := s.db.Exec("INSERT INTO episodes (user_id, title, description, audio_path, image_path, published_at) VALUES (?, ?, ?, ?, ?, ?)",
+		userID, title, description, audioPath, imagePath, publishedAt)
 	if err != nil {
 		return 0, err
 	}
@@ -148,19 +168,3 @@ func (s *Store) DeleteEpisode(id int64) error {
 	_, err := s.db.Exec("DELETE FROM episodes WHERE id = ?", id)
 	return err
 }
-
-// --- Settings ---
-
-func (s *Store) GetSetting(key string) (string, error) {
-	var val string
-	err := s.db.QueryRow("SELECT value FROM settings WHERE key = ?", key).Scan(&val)
-	if err != nil {
-		return "", err
-	}
-	return val, nil
-}
-
-func (s *Store) SetSetting(key, value string) error {
-	_, err := s.db.Exec("INSERT OR REPLACE INTO settings (key, value) VALUES (?, ?)", key, value)
-	return err
-}