import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:tatlock_ui/features/front_hall/data/datasources/quick_links_datasource.dart';
import 'package:tatlock_ui/features/front_hall/domain/entities/quick_link.dart';

part 'quick_links_provider.g.dart';

/// Provides the list of all quick links.
/// Falls back to default links if API is unavailable.
@riverpod
Future<List<QuickLink>> quickLinks(Ref ref) async {
  try {
    final datasource = ref.watch(quickLinksDatasourceProvider);
    final links = await datasource.getQuickLinks();
    // Return defaults if API returns empty list
    return links.isEmpty ? getDefaultQuickLinks() : links;
  } catch (_) {
    // Return default links if API fails (e.g., backend not running)
    return getDefaultQuickLinks();
  }
}

/// Provides a single quick link by ID.
/// Falls back to default links if API is unavailable.
@riverpod
Future<QuickLink> quickLink(Ref ref, String id) async {
  // First try to find in defaults (works offline)
  final defaults = getDefaultQuickLinks();
  final defaultLink = defaults.where((link) => link.id == id).firstOrNull;
  if (defaultLink != null) {
    return defaultLink;
  }

  // If not in defaults, try API
  try {
    final datasource = ref.watch(quickLinksDatasourceProvider);
    return await datasource.getQuickLink(id);
  } catch (_) {
    throw Exception('Link not found: $id');
  }
}

/// Controller for quick link CRUD operations.
@riverpod
class QuickLinkActions extends _$QuickLinkActions {
  @override
  AsyncValue<void> build() => const AsyncValue.data(null);

  /// Creates a new quick link.
  Future<QuickLink?> create(QuickLink link) async {
    state = const AsyncValue.loading();
    QuickLink? result;
    state = await AsyncValue.guard(() async {
      final datasource = ref.read(quickLinksDatasourceProvider);
      result = await datasource.createQuickLink(link);
      ref.invalidate(quickLinksProvider);
    });
    return result;
  }

  /// Updates an existing quick link.
  Future<QuickLink?> update(QuickLink link) async {
    state = const AsyncValue.loading();
    QuickLink? result;
    state = await AsyncValue.guard(() async {
      final datasource = ref.read(quickLinksDatasourceProvider);
      result = await datasource.updateQuickLink(link);
      ref.invalidate(quickLinksProvider);
      ref.invalidate(quickLinkProvider(link.id));
    });
    return result;
  }

  /// Deletes a quick link.
  Future<void> delete(String id) async {
    state = const AsyncValue.loading();
    state = await AsyncValue.guard(() async {
      final datasource = ref.read(quickLinksDatasourceProvider);
      await datasource.deleteQuickLink(id);
      ref.invalidate(quickLinksProvider);
    });
  }

  /// Reorders quick links.
  Future<void> reorder(List<String> orderedIds) async {
    state = const AsyncValue.loading();
    state = await AsyncValue.guard(() async {
      final datasource = ref.read(quickLinksDatasourceProvider);
      await datasource.reorderQuickLinks(orderedIds);
      ref.invalidate(quickLinksProvider);
    });
  }
}

/// Default seed data for quick links (used when API returns empty).
List<QuickLink> getDefaultQuickLinks() {
  return [
    // Home category
    const QuickLink(
      id: 'jellyfin',
      name: 'Jellyfin',
      url: 'https://jellyfin.schweitz.net',
      iconName: 'movie',
      category: 'Home',
      type: QuickLinkType.iframe,
      sortOrder: 0,
    ),
    const QuickLink(
      id: 'webui',
      name: 'Open WebUI',
      url: 'https://webui.schweitz.net',
      iconName: 'chat',
      category: 'Home',
      type: QuickLinkType.iframe,
      sortOrder: 1,
    ),
    const QuickLink(
      id: 'searxng',
      name: 'SearXNG',
      url: 'https://search.schweitz.net',
      iconName: 'search',
      category: 'Home',
      type: QuickLinkType.newTab,
      sortOrder: 2,
    ),
    // AMP category
    const QuickLink(
      id: 'amp',
      name: 'AMP Home',
      url: 'https://amp.schweitz.net',
      iconName: 'videogame_asset',
      category: 'AMP',
      type: QuickLinkType.newTab,
      sortOrder: 0,
    ),
    // Coding category
    const QuickLink(
      id: 'gitea',
      name: 'Gitea',
      url: 'https://git.schweitz.net',
      iconName: 'code',
      category: 'Coding',
      type: QuickLinkType.iframe,
      sortOrder: 0,
    ),
    const QuickLink(
      id: 'cloud-ide',
      name: 'Cloud IDE',
      url: 'https://code.schweitz.net',
      iconName: 'terminal',
      category: 'Coding',
      type: QuickLinkType.newTab,
      sortOrder: 1,
    ),
    // Infrastructure category
    const QuickLink(
      id: 'netdata',
      name: 'Netdata',
      url: 'https://netdata.schweitz.net',
      iconName: 'monitoring',
      category: 'Infrastructure',
      type: QuickLinkType.iframe,
      sortOrder: 0,
    ),
    const QuickLink(
      id: 'portainer',
      name: 'Portainer',
      url: 'https://portainer.schweitz.net',
      iconName: 'dns',
      category: 'Infrastructure',
      type: QuickLinkType.iframe,
      sortOrder: 1,
    ),
    const QuickLink(
      id: 'npm',
      name: 'Proxy Manager',
      url: 'https://npm.schweitz.net',
      iconName: 'public',
      category: 'Infrastructure',
      type: QuickLinkType.iframe,
      sortOrder: 2,
    ),
    const QuickLink(
      id: 'core-api',
      name: 'Core API',
      url: 'https://api.schweitz.net/docs',
      iconName: 'api',
      category: 'Infrastructure',
      type: QuickLinkType.iframe,
      sortOrder: 3,
    ),
  ];
}