import 'package:flutter/widgets.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import 'tokens.dart';

/// Holds the current accent color — the "hero" of Ratune's aesthetic.
///
/// In the `dynamic` theme this is extracted from the playing track's album
/// art and boosted for readability in OKLab space (Ratune `color.rs:11-64`),
/// then interpolated toward over ~400ms. Phase 1 just exposes the default and
/// a setter; the extraction + animation land in Phase 2 with playback.
class AccentNotifier extends StateNotifier<Color> {
  AccentNotifier() : super(RatuneColors.accentDefault);

  /// Snap to a new accent (e.g. from album-art extraction).
  void set(Color color) => state = color;

  /// Return to the fixed default (e.g. no art / `static` theme).
  void reset() => state = RatuneColors.accentDefault;
}

final accentProvider = StateNotifierProvider<AccentNotifier, Color>(
  (ref) => AccentNotifier(),
);