import 'dart:async';
import 'dart:convert';
import 'dart:ffi';
import 'package:flutter/material.dart';
import 'package:qhd_prevention/customWidget/ItemWidgetFactory.dart';
import 'package:qhd_prevention/pages/home/danger_auto_scrollList.dart';
import 'package:qhd_prevention/pages/home/low_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/userInfo_page.dart';
import 'package:qhd_prevention/pages/home/work/danger_page.dart';
import 'package:qhd_prevention/pages/home/work/danger_wait_list_page.dart';
import 'package:qhd_prevention/pages/home/workSet_page.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> {
  late int _eight_work_count = 0;
  late int _safetyEnvironmentalInspection = 0;
  late final List<Map<String, dynamic>> buttonInfos;

  /// 我的工作
  List<Map<String, dynamic>> workInfos = [];
  final List<Map<String, dynamic>> pcData = [
    {
      "index": 1,
      "detail": {"jiancha": "2", "yinhuan": "20", "yanshou": "4"},
    },
    {
      "index": 2,
      "detail": {"jiancha": "4", "yinhuan": "10", "yanshou": "5"},
    },
    {
      "index": 3,
      "detail": {"jiancha": "3", "yinhuan": "23", "yanshou": "3"},
    },
  ];
  final List<List<String>> tagLabels = [
    ['我', '的'],
    ['部', '门'],
    ['监', '管'],
  ];

  Future<void> _onRefresh() async {
    // 模拟网络请求
    await Future.delayed(const Duration(seconds: 2));
    // 刷新数据逻辑，如 fetchData()
    setState(() {
      // TODO: 更新数据源
    });
  }

  @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),
            ListItemFactory.createBuildSimpleSection("隐患播报"),
            const SizedBox(height: 10),
            _buildPCDataSection(),
            SizedBox(height: 50),
          ],
        ),
      ),
    );
  }

  Widget _buildWorkSection(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          // _widgetTopTip(title: "我的工作"),
          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),
        ],
      ),
    );
  }

  /// 定义 item 宽度
  double _itemWidth(BuildContext context) {
    final screenW = MediaQuery.of(context).size.width;
    return (screenW - 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: () {
                  final index = entry.key;
                  // 你的导航逻辑
                  if (index == 0) {
                    pushPage(UserinfoPage(), context);
                  }
                  else if (index == 1) {
                    pushPage(WorkSetPage(), context);
                  }
                  else if (index == 2) {
                    pushPage(RiskControlPage(), context);
                  }
                  else if (index == 3) {
                    pushPage(LowPage(), context);
                  }
                  else if (index == 7) {
                    pushPage(StudyGardenPage(), context);
                  }

                },
              );
            }).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: [
            /// 中心对齐
            Align(
              alignment: Alignment.topCenter,
              child: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: [
                  Image.asset(iconPath, width: 40, height: 40),
                  const SizedBox(height: 5),
                  Text(label, style: const TextStyle(fontSize: 14)),
                ],
              ),
            ),
            if (unreadCount > 0)
              Positioned(
                right: -4,
                top: -4,
                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: Text(
                    unreadCount > 99 ? '99+' : '$unreadCount',
                    style: const TextStyle(
                      color: Colors.white,
                      fontSize: 10,
                      height: 1,
                    ),
                    textAlign: TextAlign.center,
                  ),
                ),
              ),
          ],
        ),
      ),
    );
  }

  // 排查数据列表 item
  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 int 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),
        ],
      ),
    );
  }

  // 构建灰色网格项
  Widget _buildGridItem(
    BuildContext context, {
    required String icon,
    required String title,
    required String subtitle,
    required int index,
  }) {
    return GestureDetector(
      onTap: () {
        if (index == 1) {
          pushPage(DangerPage(), 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(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Image.asset(icon, width: 35, height: 35),
            const SizedBox(width: 15),
            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,
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  void initState() {
    super.initState();
    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": _eight_work_count,
      },
      {
        "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": _safetyEnvironmentalInspection,
      },
      {
        "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,
      },
    ];

    _fetchData(); // 初始化时请求

  }
  Future<void> _fetchData() async {
    try {
      // “我的工作” 数量
      final raw = await ApiService.getWork();
      // 如果拿到的是 String，就 decode；如果本来就是 Map，就直接用
      final Map<String, dynamic> data = raw is String
          ? json.decode(raw as String) as Map<String, dynamic>
          : raw;

      final hidCount = data['hidCount'] as Map<String, dynamic>;
      setState(() {
        workInfos = [
          {
            "icon": "assets/icon-apps/jobico1.png",
            "index": 1,
            "detail": "待排查",
            "num": (hidCount['dpc'] ?? 0).toString(),
          },
          {
            "icon": "assets/icon-apps/jobico2.png",
            "index": 2,
            "detail": "待整改",
            "num": (hidCount['dzg'] ?? 0).toString(),
          },
          {
            "icon": "assets/icon-apps/jobico3.png",
            "index": 3,
            "detail": "已超期",
            "num": (hidCount['ycq'] ?? 0).toString(),
          },
          {
            "icon": "assets/icon-apps/jobico4.png",
            "index": 4,
            "detail": "待验收",
            "num": (hidCount['dys'] ?? 0).toString(),
          },
          {
            "icon": "assets/icon-apps/jobico5.png",
            "index": 5,
            "detail": "已验收",
            "num": (hidCount['yys'] ?? 0).toString(),
          },
        ];

      });
      // 安全检查数
      final checkJson =
      await ApiService.getSafetyEnvironmentalInspectionCount();
      setState(() {
        int confirmCount = int.parse(checkJson['confirmCount']['confirmCount']);
        int repulseCount = int.parse(checkJson['repulseCount']['repulseCount']);
        int repulseAndCheckCount = int.parse(checkJson['repulseAndCheckCount']['repulseAndCheckCount']);

        _safetyEnvironmentalInspection = confirmCount + repulseCount + repulseAndCheckCount;
      });

      // 特殊作业红点
      final redPointJson = await ApiService.getRedPoint();
      setState(() {
        final countMap = redPointJson['count'] as Map<String, dynamic>;
        for (var item in countMap.values) {
          _eight_work_count += (item ?? 0) as int;
        }
      });


    } catch (e) {
      // 出错时可以 Toast 或者在页面上显示错误状态
      print('加载首页数据失败：$e');
    }
  }
}