import 'package:dio/dio.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:tatlock_ui/core/api/api_client.dart';
import 'package:tatlock_ui/features/front_hall/data/models/quick_link_model.dart';
import 'package:tatlock_ui/features/front_hall/domain/entities/quick_link.dart';

part 'quick_links_datasource.g.dart';

/// Data source for quick link operations.
///
/// Provides CRUD operations for Front Hall quick links via Core API
/// dashboard/quick-links endpoint.
class QuickLinksDatasource {
  QuickLinksDatasource(this._dio);

  final Dio _dio;

  static const _basePath = '/dashboard/quick-links';

  /// Gets all quick links.
  ///
  /// API returns: {"links": [...], "total": N}
  Future<List<QuickLink>> getQuickLinks() async {
    final response = await _dio.get<Map<String, dynamic>>(_basePath);
    final data = response.data;

    if (data == null) {
      return [];
    }

    final links = data['links'] as List<dynamic>? ?? [];
    return links
        .map((json) => QuickLinkModel.fromJson(json as Map<String, dynamic>))
        .map((model) => model.toEntity())
        .toList();
  }

  /// Gets a single quick link by ID.
  Future<QuickLink> getQuickLink(int id) async {
    final response = await _dio.get<Map<String, dynamic>>('$_basePath/$id');
    final data = response.data;

    if (data == null) {
      throw Exception('Quick link not found: $id');
    }

    return QuickLinkModel.fromJson(data).toEntity();
  }

  /// Creates a new quick link.
  Future<QuickLink> createQuickLink(QuickLink link) async {
    final model = QuickLinkModel.fromEntity(link);
    final response = await _dio.post<Map<String, dynamic>>(
      _basePath,
      data: model.toJson(),
    );
    final data = response.data;

    if (data == null) {
      throw Exception('Failed to create quick link');
    }

    return QuickLinkModel.fromJson(data).toEntity();
  }

  /// Updates an existing quick link.
  Future<QuickLink> updateQuickLink(QuickLink link) async {
    final model = QuickLinkModel.fromEntity(link);
    final id = int.tryParse(link.id) ?? 0;
    final response = await _dio.put<Map<String, dynamic>>(
      '$_basePath/$id',
      data: model.toJson(),
    );
    final data = response.data;

    if (data == null) {
      throw Exception('Failed to update quick link');
    }

    return QuickLinkModel.fromJson(data).toEntity();
  }

  /// Deletes a quick link.
  Future<void> deleteQuickLink(int id) async {
    await _dio.delete<void>('$_basePath/$id');
  }

  /// Reorders quick links by updating positions.
  ///
  /// API expects: {"link_ids": [1, 2, 3]}
  Future<void> reorderQuickLinks(List<int> orderedIds) async {
    await _dio.post<void>(
      '$_basePath/reorder',
      data: {'link_ids': orderedIds},
    );
  }
}

/// Provides the quick links datasource.
@riverpod
QuickLinksDatasource quickLinksDatasource(Ref ref) {
  final dio = ref.watch(coreApiClientProvider);
  return QuickLinksDatasource(dio);
}