Add web push notifications for new inbox items

internal/store/store.go

@@ -161,6 +161,24 @@ DROP TABLE turn_queue;
 ALTER TABLE turn_queue_next RENAME TO turn_queue;
 `}, {"add-task-merge-title", `
 ALTER TABLE tasks ADD COLUMN merge_title TEXT NOT NULL DEFAULT '';
+`}, {"add-web-push", `
+ALTER TABLE users ADD COLUMN notification_prefs TEXT NOT NULL
+	DEFAULT '{"blocking_questions":true,"questions":false,"reports":false,"errors":false,"rate_limits":false}';
+
+CREATE TABLE vapid_keys (
+	id INTEGER PRIMARY KEY CHECK (id = 1),
+	public_key TEXT NOT NULL,
+	private_key TEXT NOT NULL
+);
+
+CREATE TABLE push_subscriptions (
+	endpoint TEXT PRIMARY KEY,
+	user_login TEXT NOT NULL REFERENCES users(login),
+	p256dh TEXT NOT NULL,
+	auth TEXT NOT NULL,
+	subscriber TEXT NOT NULL,
+	created_at TEXT NOT NULL
+);
 `}}
 
 type Store struct {
@@ -314,11 +332,16 @@ func (s *Store) EnsureUser(ctx context.Context, login, displayName string) (api.
 
 func (s *Store) GetUser(ctx context.Context, login string) (api.User, error) {
 	u := api.User{}
-	err := s.db.QueryRowContext(ctx, `SELECT login, display_name, git_name, git_email FROM users WHERE login = ?`, login).
-		Scan(&u.Login, &u.DisplayName, &u.GitName, &u.GitEmail)
+	prefs := ""
+	err := s.db.QueryRowContext(ctx, `SELECT login, display_name, git_name, git_email, notification_prefs FROM users WHERE login = ?`, login).
+		Scan(&u.Login, &u.DisplayName, &u.GitName, &u.GitEmail, &prefs)
 	if errors.Is(err, sql.ErrNoRows) {
 		return u, ErrNotFound
 	}
+	if err != nil {
+		return u, err
+	}
+	err = json.Unmarshal([]byte(prefs), &u.NotificationPrefs)
 	return u, err
 }