ChickenFarm/UI/CF.APP/chicken_farm/lib/stores/dict_stroe.dart

import 'package:chicken_farm/apis/system/_dict.dart';
import 'package:chicken_farm/core/utils/storage.dart';
import 'package:chicken_farm/modes/system/dict.dart';

class DictStore {
  static final DictStore _instance = DictStore._internal();
  static const String _localStorgeKey = 'vb_dict_';
  final Map<String, List<DictDataModel>> _cache = {};

  factory DictStore() => _instance;

  DictStore._internal();

  /// 根据字典类型获取字典数据列表
  /// 先从缓存中查找，如果缓存中没有则调用接口查询
  Future<List<DictDataModel>?> getDictByType(String dictType) async {
    // 先从内存缓存中查找
    if (_cache.containsKey(dictType)) {
      return _cache[dictType];
    }

    // 再从本地存储中查找
    // final cachedDict = await StorageUtils.getObject<List<dynamic>>(
    //   '$_localStorgeKey$dictType',
    // );
    // if (cachedDict != null) {
    //   try {
    //     final dictList = cachedDict
    //         .map(
    //           (item) => item is Map<String, dynamic>
    //               ? DictDataModel.fromJson(item)
    //               : null,
    //         )
    //         .where((item) => item != null)
    //         .cast<DictDataModel>()
    //         .toList();
    //     _cache[dictType] = dictList;
    //     return dictList;
    //   } catch (e) {
    //     // 解析失败，继续从网络获取
    //   }
    // }

    // 如果本地都没有，则调用接口查询
    final dictData = await DictApi().getDicts(dictType);
    if (dictData != null) {
      // 存入缓存
      _cache[dictType] = dictData;
      await StorageUtils.setObject(
        '$_localStorgeKey$dictType',
        dictData.map((e) => e.toJson()).toList(),
      );

      return dictData;
    }

    return null;
  }

  /// 根据字典类型和值查询标签
  Future<String?> getLabelByTypeAndValue(String dictType, String value) async {
    final dict = await getDictByTypeAndValue(dictType, value);
    return dict?.dictLabel.isNotEmpty == true ? dict?.dictLabel : null;
  }

  /// 根据字典类型和值查询字典项
  Future<DictDataModel?> getDictByTypeAndValue(
    String dictType,
    String value,
  ) async {
    final dictList = await getDictByType(dictType);
    if (dictList != null) {
      final dict = dictList.firstWhere(
        (element) => element.dictValue == value,
        orElse: () => DictDataModel(
          dictCode: 0,
          dictSort: 0,
          dictLabel: '',
          dictValue: '',
          dictType: dictType,
        ),
      );
      // 检查是否找到了匹配的字典项
      if (dict.dictCode != 0 ||
          dict.dictLabel.isNotEmpty ||
          dict.dictValue.isNotEmpty) {
        return dict;
      }
    }
    return null;
  }

  /// 清除指定字典类型的缓存
  void clearDictCache(String dictType) {
    _cache.remove(dictType);
    //StorageUtils.remove('$_localStorgeKey$dictType');
  }

  /// 清除所有字典缓存
  void clearAll() {
    _cache.clear();
    //StorageUtils.removeWithPrefix(_localStorgeKey);
  }
}