import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:worldhopper/models/feed.dart';
import 'package:worldhopper/repositories/feed_repository.dart';

/// Provider for FeedRepository instance
final feedRepositoryProvider = Provider<FeedRepository>((ref) {
  return FeedRepository();
});

/// Provider for fetching a feed from a server
final feedProvider = FutureProvider.family<Feed, FeedRequest>(
  (ref, request) async {
    final repository = ref.watch(feedRepositoryProvider);
    return await repository.fetchFeed(
      request.serverId,
      request.url,
      forceRefresh: request.forceRefresh,
    );
  },
);

/// Provider for fetching the root feed of a server
final rootFeedProvider = FutureProvider.family<Feed, RootFeedRequest>(
  (ref, request) async {
    final repository = ref.watch(feedRepositoryProvider);
    return await repository.fetchRootFeed(
      request.serverId,
      forceRefresh: request.forceRefresh,
    );
  },
);

/// Request object for fetching feeds
class FeedRequest {
  final String serverId;
  final String url;
  final bool forceRefresh;

  const FeedRequest({
    required this.serverId,
    required this.url,
    this.forceRefresh = false,
  });

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is FeedRequest &&
          runtimeType == other.runtimeType &&
          serverId == other.serverId &&
          url == other.url &&
          forceRefresh == other.forceRefresh;

  @override
  int get hashCode => serverId.hashCode ^ url.hashCode ^ forceRefresh.hashCode;
}

/// Request object for fetching root feeds
class RootFeedRequest {
  final String serverId;
  final bool forceRefresh;

  const RootFeedRequest({
    required this.serverId,
    this.forceRefresh = false,
  });

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is RootFeedRequest &&
          runtimeType == other.runtimeType &&
          serverId == other.serverId &&
          forceRefresh == other.forceRefresh;

  @override
  int get hashCode => serverId.hashCode ^ forceRefresh.hashCode;
}