import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';
import 'package:media_kit/media_kit.dart';
import 'package:veloe_kemono_party_flutter/app_layout.dart';
import 'package:veloe_kemono_party_flutter/kemono_client.dart';
import 'package:veloe_kemono_party_flutter/models/creator.dart';
import 'package:veloe_kemono_party_flutter/models/nav_item.dart';
import 'package:veloe_kemono_party_flutter/models/post.dart';
import 'package:veloe_kemono_party_flutter/pages/cache_settings_screen.dart';
import 'package:veloe_kemono_party_flutter/pages/home_screen.dart';
import 'package:veloe_kemono_party_flutter/pages/posts_screen.dart';
import 'package:veloe_kemono_party_flutter/posts_notifier.dart';

// Providers
final searchQueryProvider = StateProvider<String>((ref) => '');
final selectedCreatorProvider = StateProvider<Creator?>((ref) => null);
final postsPageProvider = StateProvider<int>((ref) => 0);

enum KemonoSource { kemono, coomer }

final sourceProvider = StateProvider<KemonoSource>((ref) => KemonoSource.kemono);

final kemonoClientProvider = Provider<KemonoClient>((ref) {
  final source = ref.watch(sourceProvider);
  final baseUrl = source == KemonoSource.kemono ? 'https://kemono.su' : 'https://coomer.su';
  return KemonoClient(baseUrl);
});
final creatorsProvider = FutureProvider<List<Creator>>((ref) async {
  final query = ref.watch(searchQueryProvider);
  final client = ref.watch(kemonoClientProvider);
  final creators = await client.getCreators();
  
  return creators.where((creator) =>
    creator.name.toLowerCase().contains(query.toLowerCase()) ||
    creator.service.toLowerCase().contains(query.toLowerCase())
  ).toList();
});

final sourceChangeProvider = Provider<void>((ref) {
  // This will trigger rebuilds when source changes
  ref.watch(sourceProvider);
});

final postsProvider = StateNotifierProvider.autoDispose
    .family<PostsNotifier, AsyncValue<List<Post>>, (String, String, String)>((ref, args) {
  final (creatorId, service, query) = args;
  return PostsNotifier(
    creatorId: creatorId,
    service: service,
    query: query,
    client: ref.read(kemonoClientProvider),
  );
});
final httpFileService = HttpFileService();
// Image Caching
final imageCacheManager = CacheManager(
  Config(
    'kemono_images',
    stalePeriod: const Duration(days: 30),
    maxNrOfCacheObjects: 1024,
    fileService: httpFileService,
  ),
);
final videoCacheManager = CacheManager(
  Config(
    'kemono_videos',
    stalePeriod: const Duration(days: 30),
    maxNrOfCacheObjects: 1024,
    fileService: httpFileService,
  ),
);
final iconsCacheManager = CacheManager(
  Config(
    'kemono_icons',
    stalePeriod: const Duration(days: 30),
    maxNrOfCacheObjects: 1024,
    fileService: HttpFileService(),
  ),
);

// Main Application
void main() { 
  httpFileService.concurrentFetches = 2;
  MediaKit.ensureInitialized();
  runApp(
    const ProviderScope(
      child: MaterialApp(
        home: AppLayout(
          navItems: [
            NavItem(
              label: 'Home',
              icon: Icons.home,
              page: HomeScreen(),
            ),
            NavItem(
              label: 'Global Feed (Rukis)',
              icon: Icons.public,
              page: PostsScreen( creatorId:'82522', service: 'patreon', withAppBar: false,),
            ),
            NavItem(
              label: 'Settings',
              icon: Icons.settings,
              page: CacheSettingsScreen(),
            ),
          ],
        ),
      ),
    ),
  );
}