flutter_integrated_whb/lib/pages/home/home_page.dart

import 'dart:async';
import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:qhd_prevention/customWidget/custom_alert_dialog.dart';
import 'package:qhd_prevention/customWidget/toast_util.dart';
import 'package:qhd_prevention/tools/auth_service.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:qhd_prevention/customWidget/ItemWidgetFactory.dart';
import 'package:qhd_prevention/pages/KeyProjects/keyProjects_tab_list.dart';
import 'package:qhd_prevention/pages/badge_manager.dart';
import 'package:qhd_prevention/pages/home/NFC/home_nfc_list_page.dart';
import 'package:qhd_prevention/pages/home/SafeCheck/safeCheck_tab_list.dart';
import 'package:qhd_prevention/pages/home/home_danger_page.dart';
import 'package:qhd_prevention/pages/home/risk/riskControl_page.dart';
import 'package:qhd_prevention/pages/home/study/study_garden_page.dart';
import 'package:qhd_prevention/pages/home/tap/tabList/work_tab_list_page.dart';
import 'package:qhd_prevention/pages/home/userInfo_page.dart';
import 'package:qhd_prevention/pages/app/danger_wait_list_page.dart';
import 'package:qhd_prevention/pages/home/work/laws_regulations_page.dart';
import 'package:qhd_prevention/pages/home/workSet_page.dart';

import 'EquipmentInspection/equipment_inspection_list_page.dart';
import 'SafetyCommitment/safety_commitment_page.dart';
import 'Safetymeeting/safety_meeting_list_page.dart';
import 'hidden_roll_widget.dart';
import '../../http/ApiService.dart';
import '../../tools/tools.dart';

class HomePage extends StatefulWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  int _eight_work_count = 0;
  int _safetyEnvironmentalInspection = 0;

  // 缓存 key
  static const String _hiddenCacheKey = 'hidden_roll_cache';

  String _workKey(int idx) {
    switch (idx) {
      case 1:
        return 'dpc'; // 待排查
      case 2:
        return 'dzg'; // 待整改
      case 3:
        return 'ycq'; // 已超期
      case 4:
        return 'dys'; // 待验收
      case 5:
        return 'yys'; // 已验收
      default:
        return '';
    }
  }

  /// 按钮信息
  List<Map<String, dynamic>> buttonInfos = [
    {
      "icon": "assets/icon-apps/home-base.png",
      "title": "人员信息",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-rili.png",
      "title": "工作安排",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-risk.png",
      "title": "风险布控",
      "unreadCount": 0,
    },
    {"icon": "assets/icon-apps/home-fl.png", "title": "法律法规", "unreadCount": 0},
    {"icon": "assets/icon-apps/home-gw.png", "title": "特殊作业", "unreadCount": 0},
    {
      "icon": "assets/icon-apps/home-zdgcgl.jpg",
      "title": "重点工程管理",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-cns.png",
      "title": "安全承诺",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-study.png",
      "title": "学习园地",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-base.png",
      "title": "安全检查",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/home-speEquip.jpg",
      "title": "设备巡检",
      "unreadCount": 0,
    },
    {
      "icon": "assets/icon-apps/safetymeeting.png",
      "title": "安全例会",
      "unreadCount": 0,
    },
    // {"icon": "assets/icon-apps/home-xj.png", "title": "燃气巡检", "unreadCount": 0},
  ];

  /// 我的工作
  List<Map<String, dynamic>> workInfos = [
    {
      "icon": "assets/icon-apps/jobico1.png",
      "index": 1,
      "detail": "待排查",
      "num": '0',
    },
    {
      "icon": "assets/icon-apps/jobico2.png",
      "index": 2,
      "detail": "待整改",
      "num": '0',
    },
    {
      "icon": "assets/icon-apps/jobico3.png",
      "index": 3,
      "detail": "已超期",
      "num": '0',
    },
    {
      "icon": "assets/icon-apps/jobico4.png",
      "index": 4,
      "detail": "待验收",
      "num": '0',
    },
    {
      "icon": "assets/icon-apps/jobico5.png",
      "index": 5,
      "detail": "已验收",
      "num": '0',
    },
  ];

  /// 排查数据
  List<Map<String, dynamic>> pcData = [
    {
      "index": 1,
      "detail": {"jiancha": '0', "yinhuan": '0', "yanshou": '0'},
    },
    {
      "index": 2,
      "detail": {"jiancha": '0', "yinhuan": '0', "yanshou": '0'},
    },
    {
      "index": 3,
      "detail": {"jiancha": '0', "yinhuan": '0', "yanshou": '0'},
    },
  ];

  /// 隐患播报列表及状态
  List<Map<String, dynamic>> hiddenList = [];
  bool _initialLoadingHidden = true;

  final List<List<String>> tagLabels = [
    ['我', '的'],
    ['部', '门'],
    ['监', '管'],
  ];

  @override
  void initState() {
    super.initState();
    // 使用初始化加载：先恢复缓存（若存在则直接显示），然后再发起网络请求（成功则覆盖缓存）
    _initialLoad();
    BadgeManager().initAllModules();
  }

  /// 首次加载：先恢复缓存（如果有），然后在后台去刷新（只有当无缓存时才显示 loading）
  Future<void> _initialLoad() async {
    final result = await AuthService.checkUpdate();
    if (FormUtils.hasValue(result, 'pd')) {
      // 有更新 提示更新
      Map pd = result['pd'];
      CustomAlertDialog.showAlert(
        context,
        title: '更新通知',
        content: pd['UPLOAD_CONTENT'] ?? '',
        onConfirm: () {
          ToastUtil.showNormal(context, '更新去吧！');
        },
      );
      return;
    }
    await _loadHiddenCache();
    // 拉取其他数据 + 隐患列表（当 hiddenList 为空时显示 loading，否则不显示）
    await _fetchData();
    await _fetchHiddenList(showLoading: hiddenList.isEmpty);
  }

  Future<void> _onRefresh() async {
    await BadgeManager().initAllModules();
    await Future.wait([
      _fetchData(),
      // 下拉刷新时不展示 loading（因为用户主动触发），但仍会更新缓存（成功时）
      _fetchHiddenList(showLoading: false),
    ]);
  }

  /// 从 SharedPreferences 读取缓存并设置 hiddenList（如果存在）
  Future<void> _loadHiddenCache() async {
    try {
      final prefs = await SharedPreferences.getInstance();
      final jsonStr = prefs.getString(_hiddenCacheKey);
      if (jsonStr != null && jsonStr.isNotEmpty) {
        final parsed = jsonDecode(jsonStr) as List<dynamic>;
        final list =
            parsed.map((e) => Map<String, dynamic>.from(e as Map)).toList();
        setState(() {
          hiddenList = list;
          _initialLoadingHidden = false; // 有缓存则不显示首次loading
        });
      } else {
        // 无缓存：保持 _initialLoadingHidden = true（只在需要显示 loading 时 setState）
        setState(() {
          _initialLoadingHidden = true;
        });
      }
    } catch (e) {
      debugPrint('加载 hidden cache 失败: $e');
      // 出错时认为无缓存
      setState(() {
        _initialLoadingHidden = true;
      });
    }
  }

  /// 保存 hiddenList 到 SharedPreferences（调用时确保传入最新 list）
  Future<void> _saveHiddenCache(List<Map<String, dynamic>> list) async {
    try {
      final prefs = await SharedPreferences.getInstance();
      final jsonStr = jsonEncode(list);
      await prefs.setString(_hiddenCacheKey, jsonStr);
    } catch (e) {
      debugPrint('保存 hidden cache 失败: $e');
    }
  }

  /// 获取隐患播报列表（带缓存/加载控制逻辑）
  Future<void> _fetchHiddenList({bool showLoading = true}) async {
    // 仅在需要展示 loading 且当前没有数据时 setState 显示 loading indicator
    if (showLoading && hiddenList.isEmpty) {
      setState(() {
        _initialLoadingHidden = true;
      });
    }

    try {
      final res = await ApiService.getHiddenRoll().timeout(
        const Duration(seconds: 10),
      );
      final list = (res['hiddenList'] as List).cast<Map<String, dynamic>>();

      // 请求成功：覆盖 UI 与缓存（始终覆盖）
      setState(() {
        hiddenList = list;
        _initialLoadingHidden = false;
      });

      // 保存缓存（覆盖）
      await _saveHiddenCache(list);
    } catch (e) {
      debugPrint('fetchHiddenList error: $e');

      // 请求失败：如果已有缓存（hiddenList 非空），就保留缓存（什么也不做）
      // 如果没有缓存（首次且失败），需要把 loading 关掉（避免一直转圈）
      if (hiddenList.isEmpty) {
        setState(() {
          _initialLoadingHidden = false;
        });
      }
    }
  }

  Future<void> _fetchData() async {
    try {
      // “我的工作”数据
      final data = await ApiService.getWork();
      final hidCount = data['hidCount'] as Map<String, dynamic>? ?? {};

      // 告知BadgeManager去更新“安全巡检”和“八项作业”角标
      BadgeManager().updateEnvInspectCount();
      BadgeManager().updateEightWorkCount();

      // 拉取其他数据
      final results = await Future.wait([
        ApiService.getUserData(),
        ApiService.getDeptData(),
        ApiService.getSuperviseDeptData(),
      ]);
      final myData = results[0];
      final deptData = results[1];
      final superDeptData = results[2];

      //更新页面状态
      setState(() {
        // ———— 更新 workInfos ————
        workInfos =
            workInfos.map((info) {
              final idx = info['index'] as int;
              final key = _workKey(idx);
              final num = (hidCount[key] ?? 0).toString();
              return {...info, 'num': num};
            }).toList();

        // ———— 从 BadgeManager 拿最新的本页角标 ————
        _safetyEnvironmentalInspection = BadgeManager().envInspectCount;
        _eight_work_count = BadgeManager().eightWorkCount;

        // ———— 更新 buttonInfos 中两个角标位置 ————
        buttonInfos =
            buttonInfos.map((info) {
              switch (info['title'] as String) {
                case '特殊作业':
                  info['unreadCount'] = _eight_work_count;
                  break;
                case '安全检查':
                  info['unreadCount'] = _safetyEnvironmentalInspection;
                  break;
                default:
                  // 其它保持原样
                  break;
              }
              return info;
            }).toList();

        // ———— 更新排查数据 pcData ————
        pcData =
            [myData, deptData, superDeptData].asMap().entries.map((entry) {
              final idx = entry.key;
              final pdMap = (entry.value['pd'] as Map<String, dynamic>?) ?? {};
              return {
                'index': idx + 1,
                'detail': {
                  'jiancha': pdMap['check_count']?.toString() ?? '0',
                  'yinhuan': pdMap['hidden_count']?.toString() ?? '0',
                  'yanshou': pdMap['rectify_count']?.toString() ?? '0',
                },
              };
            }).toList();
      });
    } catch (e) {
      debugPrint('加载首页数据失败：$e');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: RefreshIndicator(
        onRefresh: _onRefresh,
        child: ListView(
          physics: const AlwaysScrollableScrollPhysics(),
          padding: const EdgeInsets.all(10),
          children: [
            ClipRRect(
              borderRadius: BorderRadius.circular(5),
              child: Image.asset('assets/images/banner.jpg', fit: BoxFit.cover),
            ),
            const SizedBox(height: 10),
            _buildIconSection(context),
            const SizedBox(height: 10),
            _buildWorkSection(context),
            const SizedBox(height: 10),
            Container(
              decoration: BoxDecoration(
                borderRadius: BorderRadius.circular(5),
                color: Colors.white,
              ),
              child: Column(
                children: [
                  ListItemFactory.createBuildSimpleSection("隐患播报"),
                  hiddenList.isEmpty
                      ? SizedBox(
                        height: 150,
                        child: Center(child: CircularProgressIndicator()),
                      )
                      : HiddenRollWidget(hiddenList: hiddenList),
                ],
              ),
            ),
            const SizedBox(height: 10),
            _buildPCDataSection(),
            SizedBox(height: 20),
          ],
        ),
      ),
    );
  }

  Widget _buildWorkSection(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          ListItemFactory.createBuildSimpleSection("我的工作"),
          Padding(
            padding: const EdgeInsets.fromLTRB(10, 0, 10, 10),
            child: LayoutBuilder(
              builder: (context, constraints) {
                const spacing = 10.0;
                final totalWidth = constraints.maxWidth;
                final itemWidth = (totalWidth - spacing * 2) / 3;
                return Wrap(
                  spacing: spacing,
                  runSpacing: spacing,
                  children:
                      workInfos.map((info) {
                        return SizedBox(
                          width: itemWidth,
                          child: _buildGridItem(
                            context,
                            icon: info["icon"]!,
                            title: info["num"]!,
                            subtitle: info["detail"]!,
                            index: info["index"]!,
                          ),
                        );
                      }).toList(),
                );
              },
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildPCDataSection() {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          ListItemFactory.createBuildSimpleSection("排查数据"),
          ...pcData.map(_widgetPCDataItem),
        ],
      ),
    );
  }

  double _itemWidth(BuildContext context) =>
      (MediaQuery.of(context).size.width - 20) / 4;

  Widget _buildIconSection(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(vertical: 10),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
      ),
      child: Wrap(
        runSpacing: 16,
        children:
            buttonInfos.asMap().entries.map((entry) {
              final idx = entry.key;
              final info = entry.value;
              return _buildIconButton(
                context: context,
                iconPath: info["icon"] as String,
                label: info["title"] as String,
                unreadCount: info["unreadCount"] as int,
                onPressed: () async {
                  switch (idx) {
                    case 0: // 人员信息
                      pushPage(UserinfoPage(), context);
                      break;
                    case 1: // 法律法规
                      pushPage(WorkSetPage(), context);
                      break;
                    case 2: // 风险布控
                      pushPage(RiskControlPage(), context);
                      break;
                    case 3: // 法律法规
                      pushPage(LawsRegulationsPage(), context);
                      break;
                    case 4: // 八项作业
                      await pushPage(WorkTabListPage(), context);
                      break;
                    case 5: // 重点工程管理
                      await pushPage(KeyprojectsTabList(), context);
                      break;
                    case 6: //安全承诺
                      pushPage(SafetyCommitmentPage(), context);
                      break;
                    case 7:
                      pushPage(StudyGardenPage(), context);
                      break;
                    case 9:
                      pushPage(EquipmentInspectionListPage(), context);
                      break;
                    case 8: // 安全检查
                      await pushPage(SafecheckTabList(), context);
                      break;
                    case 10:
                      pushPage(SafetyMeetingListPage(), context);
                      break;
                    case 11:
                      pushPage(HomeNfcListPage(), context);
                      break;
                  }

                  _onRefresh();
                },
              );
            }).toList(),
      ),
    );
  }

  Widget _buildIconButton({
    required BuildContext context,
    required String iconPath,
    required String label,
    required VoidCallback onPressed,
    int unreadCount = 0,
  }) {
    final w = _itemWidth(context);
    return InkWell(
      onTap: onPressed,
      borderRadius: BorderRadius.circular(8),
      child: SizedBox(
        width: w,
        child: Stack(
          clipBehavior: Clip.none,
          children: [
            Align(
              alignment: Alignment.topCenter,
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Image.asset(iconPath, width: 40, height: 40),
                  const SizedBox(height: 5),
                  Text(label, style: const TextStyle(fontSize: 14)),
                ],
              ),
            ),
            if (unreadCount > 0)
              Positioned(
                right: 20,
                top: -5,
                child: Container(
                  padding: const EdgeInsets.symmetric(
                    horizontal: 4,
                    vertical: 2,
                  ),
                  decoration: BoxDecoration(
                    color: Colors.red,
                    borderRadius: BorderRadius.circular(10),
                  ),
                  constraints: const BoxConstraints(
                    minWidth: 16,
                    minHeight: 16,
                  ),
                  child: Center(
                    child: Text(
                      unreadCount > 99 ? '99+' : '$unreadCount',
                      style: const TextStyle(
                        color: Colors.white,
                        fontSize: 11,
                        height: 1,
                      ),
                      textAlign: TextAlign.center,
                    ),
                  ),
                ),
              ),
          ],
        ),
      ),
    );
  }

  Widget _widgetPCDataItem(Map<String, dynamic> item) {
    final detail = item["detail"] as Map<String, String>;
    final values = [detail["jiancha"]!, detail["yinhuan"]!, detail["yanshou"]!];
    const labels = ["检查数", "发现隐患数", "已验收隐患数"];
    const colors = [Color(0xFF3283FF), Color(0xFFF37B1D), Color(0xFF41B852)];
    final idx = int.tryParse(item["index"].toString())! - 1;

    return Padding(
      padding: const EdgeInsets.fromLTRB(15, 0, 10, 15),
      child: Column(
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              for (var i = 0; i < 3; i++)
                Column(
                  children: [
                    Text(
                      values[i],
                      style: TextStyle(
                        color: colors[i],
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                    const SizedBox(height: 4),
                    Text(
                      labels[i],
                      style: TextStyle(color: Colors.black38, fontSize: 15),
                    ),
                  ],
                ),
              Container(
                color: idx == 0 ? Colors.red : Colors.blue,
                width: 20,
                height: 40,
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Text(
                      tagLabels[idx][0],
                      style: TextStyle(color: Colors.white, fontSize: 12),
                    ),
                    Text(
                      tagLabels[idx][1],
                      style: TextStyle(color: Colors.white, fontSize: 12),
                    ),
                  ],
                ),
              ),
            ],
          ),
          SizedBox(height: 10),
          Divider(height: 1, color: Colors.black12),
        ],
      ),
    );
  }

  Widget _buildGridItem(
    BuildContext context, {
    required String icon,
    required String title,
    required String subtitle,
    required int index,
  }) {
    return GestureDetector(
      onTap: () {
        if (index == 1) {
          pushPage(HomeDangerPage(), context);
        } else if (index == 2) {
          pushPage(DangerWaitListPage(DangerType.wait, 2), context);
        } else if (index == 3) {
          pushPage(DangerWaitListPage(DangerType.expired, 3), context);
        } else if (index == 4) {
          pushPage(DangerWaitListPage(DangerType.waitAcceptance, 4), context);
        } else if (index == 5) {
          pushPage(DangerWaitListPage(DangerType.acceptance, 5), context);
        }
      },
      child: Container(
        padding: const EdgeInsets.all(8),
        decoration: BoxDecoration(
          color: const Color(0xfbf9f9ff),
          borderRadius: BorderRadius.circular(6),
        ),
        child: Row(
          children: [
            Image.asset(icon, width: 35, height: 35),
            const SizedBox(width: 5),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    title,
                    style: const TextStyle(
                      fontSize: 16,
                      fontWeight: FontWeight.bold,
                    ),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                  ),
                  const SizedBox(height: 4),
                  Text(
                    subtitle,
                    style: const TextStyle(fontSize: 14, color: Colors.black),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}