import 'dart:typed_data';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../../../core/supabase/supabase_providers.dart';
import '../../data/services/post_service.dart';
import '../../domain/models/feed_post_model.dart';

final postServiceProvider = Provider<PostService>((ref) {
  final client = ref.watch(supabaseProvider);
  return PostService(client);
});

final feedPostsProvider = FutureProvider<List<FeedPostModel>>((ref) {
  return ref.watch(postServiceProvider).fetchFeed();
});

final postControllerProvider = AutoDisposeAsyncNotifierProvider<PostController, void>(
  PostController.new,
);

class PostController extends AutoDisposeAsyncNotifier<void> {
  @override
  Future<void> build() async {}

  Future<void> createPost({
    required String caption,
    required Uint8List imageBytes,
    required String extension,
  }) async {
    state = const AsyncLoading();
    state = await AsyncValue.guard(() async {
      await ref.read(postServiceProvider).uploadPost(
            caption: caption,
            imageBytes: imageBytes,
            extension: extension,
          );
      ref.invalidate(feedPostsProvider);
    });
  }

  Future<void> toggleLike(FeedPostModel post) async {
    state = const AsyncLoading();
    state = await AsyncValue.guard(() async {
      await ref.read(postServiceProvider).toggleLike(
            postId: post.id,
            currentlyLiked: post.isLiked,
            currentLikesCount: post.likesCount,
          );
      ref.invalidate(feedPostsProvider);
    });
  }

  Future<void> deletePost(String postId) async {
    state = const AsyncLoading();
    state = await AsyncValue.guard(() async {
      await ref.read(postServiceProvider).deletePost(postId);
      ref.invalidate(feedPostsProvider);
    });
  }
}