YYHome/packages/cpt_main/lib/modules/notification/notification_view_model.dart

import 'package:cpt_main/modules/notification/notification_group_data.dart';
import 'package:plugin_platform/engine/toast/toast_engine.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:widgets/load_state_layout.dart';
import 'package:widgets/widget_export.dart';

import 'notification_state.dart';

part 'notification_view_model.g.dart';

@riverpod
class NotificationViewModel extends _$NotificationViewModel {
  @override
  NotificationState build() {
    return NotificationState(datas: []);
  }

  var _curPage = 1; //请求参数当前的页面
  var _needShowPlaceholder = true; //是否展示LoadingView

  // Refresh 控制器
  final EasyRefreshController refreshController = EasyRefreshController(
    controlFinishRefresh: true, //允许刷新
    controlFinishLoad: true, //允许加载
  );

  //刷新页面状态
  void changeLoadingState(LoadState loadState, String? errorMsg) {
    state = state.copyWith(loadingState: loadState, errorMessage: errorMsg);
  }

  // Refresh 刷新事件
  Future onRefresh() async {
    _curPage = 1;
    fetchList();
  }

  // Refresh 加载事件
  Future loadMore() async {
    _curPage++;
    fetchList();
  }

  // 重试请求
  Future retryRequest() async {
    _curPage = 1;
    _needShowPlaceholder = true;
    fetchList();
  }

  /// 获取服务器数据
  Future fetchList() async {
    if (_needShowPlaceholder) {
      changeLoadingState(LoadState.State_Loading, null);
    }

    // 获取 Applied 列表
    // var listResult = await _jobRepository.fetchJobAppliedList(
    //   state.jobId,
    //   state.selectedStatusId,
    //   state.keyword,
    //   curPage: _curPage,
    //   cancelToken: cancelToken,
    // );
    //
    // // 处理数据
    // if (listResult.isSuccess) {
    //   handleList(listResult.data?.rows);
    // } else {
    //   errorMessage = listResult.errorMsg;
    //   changeLoadingState(LoadState.State_Error);
    // }

    await Future.delayed(const Duration(milliseconds: 1500));

    List<NotificationGroupData> list = [];
    if (_curPage > 1) {

      //这里只加载一页吧
    } else {

      list.add(NotificationGroupData()
        ..groupId = "Toady"
        ..groupDatas = ["1", "2", "3", "4"]);

      list.add(NotificationGroupData()
        ..groupId = "Friday 11 oct 2024"
        ..groupDatas = ["1", "2", "3"]);

      list.add(NotificationGroupData()
        ..groupId = "Thursday 10 oct 2024"
        ..groupDatas = ["1", "2"]);

      list.add(NotificationGroupData()
        ..groupId = "Wednesday 9 oct 2024"
        ..groupDatas = ["1"]);

    }


    if (_curPage == 1) {
      //刷新的方式
      state = state.copyWith(datas: list);
      refreshController.finishRefresh();

      //更新展示的状态
      changeLoadingState(LoadState.State_Success, null);
    } else {
      //加载更多
      final allList = state.datas;
      allList.addAll(list);
      state.datas.addAll(list);

      // refreshController.finishLoad();
      refreshController.finishLoad(IndicatorResult.noMore);

      state = state.copyWith(datas: allList);
    }

    // 最后赋值
    _needShowPlaceholder = false;
  }

// 处理数据与展示的逻辑
// void handleList(List<JobAppliedListSGRows>? list) {
//   if (list != null && list.isNotEmpty) {
//     //有数据，判断是刷新还是加载更多的数据
//     if (_curPage == 1) {
//       //刷新的方式
//       state.datas.clear();
//       state.datas.addAll(list);
//       refreshController.finishRefresh();
//
//       //更新展示的状态
//       changeLoadingState(LoadState.State_Success);
//     } else {
//       //加载更多
//       state.datas.addAll(list);
//       refreshController.finishLoad();
//       update();
//     }
//   } else {
//     if (_curPage == 1) {
//       //展示无数据的布局
//       state.datas.clear();
//       changeLoadingState(LoadState.State_Empty);
//       refreshController.finishRefresh();
//     } else {
//       //展示加载完成，没有更多数据了
//       refreshController.finishLoad(IndicatorResult.noMore);
//     }
//   }
// }

  /// 点击标记全部
  void markAll() {
    ToastEngine.show("点击标记全部");
  }

}