import 'package:dio/dio.dart';

import '../models/theme_group.dart';
import '../models/theme_template.dart';
import 'api_client.dart';

/// 主题模板服务：对接 web 后台 /theme/themetemplate/* 与 /theme/page/* 接口。
class ThemeService {
  ThemeService({Dio? dio}) : _dio = dio ?? ApiClient.instance.dio;

  final Dio _dio;

  /// 获取全部启用的主题模板。
  ///
  /// GET /theme/themetemplate/all?status=ENABLED
  Future<List<ThemeTemplate>> getThemeTemplateAll() async {
    final response = await _dio.get<dynamic>(
      '/theme/themetemplate/all',
      queryParameters: const {'status': 'ENABLED'},
    );
    final list = _extractList(response.data);
    return list
        .whereType<Map<String, dynamic>>()
        .map(ThemeTemplate.fromJson)
        .where((t) => t.id.isNotEmpty && t.isEnabled)
        .toList();
  }

  /// 查询门店下各设备分组的主题预览列表（界面配置）。
  ///
  /// GET /theme/page/org/{orgId}/photos
  Future<List<ThemeGroup>> getStoreThemeGroups(String orgId) async {
    final response = await _dio.get<dynamic>(
      '/theme/page/org/$orgId/photos',
    );
    final data = response.data;
    if (data is List) {
      return data
          .whereType<Map<String, dynamic>>()
          .map(ThemeGroup.fromJson)
          .where((g) => g.groupId > 0)
          .toList();
    }
    if (data is Map<String, dynamic>) {
      final code = data['code'];
      final isSuccess = code == null || code == 200 || code == 0;
      if (!isSuccess) return [];
      final list = data['data'] ?? data['list'];
      if (list is List) {
        return list
            .whereType<Map<String, dynamic>>()
            .map(ThemeGroup.fromJson)
            .where((g) => g.groupId > 0)
            .toList();
      }
    }
    return [];
  }

  /// 兼容列表响应的三种形态：
  /// `{list: [...]}` / `{data: [...]}` / 直接数组。
  static List<dynamic> _extractList(dynamic data) {
    if (data is List) return data;
    if (data is Map<String, dynamic>) {
      final list = data['list'];
      if (list is List) return list;
      final innerData = data['data'];
      if (innerData is List) return innerData;
    }
    return const <dynamic>[];
  }
}