import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_blue_plus/flutter_blue_plus.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:star_lock/appRouters.dart';
import 'package:star_lock/flavors.dart';
import 'package:star_lock/mine/addLock/nearbyLock/nearbyLock_state.dart';
import '../../../app_settings/app_colors.dart';
import '../../../tools/appRouteObserver.dart';
import '../../../tools/titleAppBar.dart';
import 'nearbyLock_logic.dart';

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

  @override
  State<NearbyLockPage> createState() => _NearbyLockPageState();
}

class _NearbyLockPageState extends State<NearbyLockPage> with RouteAware {
  final NearbyLockLogic logic = Get.put(NearbyLockLogic());
  final NearbyLockState state = Get.find<NearbyLockLogic>().state;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: AppColors.mainBackgroundColor,
      appBar: F.sw(
        skyCall: () => TitleAppBar(
            barTitle: '附近的锁'.tr,
            haveBack: true,
            backgroundColor: AppColors.mainColor,
            actionsList: <Widget>[
              CupertinoActivityIndicator(
                radius: 18.w,
                color: Colors.white,
              ),
              SizedBox(width: 30.w)
            ]),
        xhjCall: () => TitleAppBar(
            barTitle: '附近的锁'.tr,
            haveBack: true,
            backgroundColor: Colors.white,
            iconColor: AppColors.blackColor,
            titleColor: AppColors.blackColor,
            actionsList: <Widget>[
              CupertinoActivityIndicator(
                radius: 18.w,
                color: AppColors.blackColor,
              ),
              SizedBox(width: 30.w)
            ]),
      ),
      body: Stack(
        children: [
          Obx(listView),
          Positioned(
            left: 16.w,
            bottom: 64.h,
            child: GestureDetector(
              onTap: () {
                Get.toNamed(Routers.lockAddFaqPage);
              },
              child: Container(
                padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 10.w),
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.circular(20.w),
                  boxShadow: const <BoxShadow>[
                    BoxShadow(
                      color: Colors.black12,
                      blurRadius: 8,
                      offset: Offset(0, 2),
                    ),
                  ],
                ),
                child: Wrap(
                  crossAxisAlignment: WrapCrossAlignment.center,
                  alignment: WrapAlignment.center,
                  children: [
                    Icon(Icons.help_outline,
                        color: AppColors.touristColor, size: 22.w),
                    SizedBox(width: 6.w),
                    ConstrainedBox(
                      constraints: BoxConstraints(
                          maxWidth: 1.sw - 80.w), // 适当减去icon和padding宽度
                      child: Text(
                        '找不到锁？点此查看。'.tr,
                        style: TextStyle(
                          color: AppColors.touristColor,
                          fontSize: 18.sp,
                          fontWeight: FontWeight.w500,
                        ),
                        maxLines: 3, // 最多显示3行
                        overflow: TextOverflow.ellipsis, // 超出部分省略号
                        softWrap: true, // 自动换行
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }

  Widget listView() {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: <Widget>[
        Expanded(
          child: ListView.separated(
            itemCount: state.devices.length,
            itemBuilder: (BuildContext c, int index) {
              return nearbyLockItem(
                  'images/icon_lockGroup_item.png', state.devices[index], () {
                String advName = state.devices[index].advertisementData.advName;
                state.selectLockName.value = advName;
                logic.getServerDatetime();
              });
            },
            separatorBuilder: (BuildContext context, int index) {
              return Divider(
                height: 1,
                color: AppColors.greyLineColor,
                indent: 20.w,
                endIndent: 0,
              );
            },
          ),
        ),
        // 移除了原有的"无法连接？尝试升级"按钮
      ],
    );
  }

  Widget nearbyLockItem(
      String lockTypeIcon, ScanResult scanResult, Function() action) {
    // 如果广播名称为空或空字符串，则不显示该项
    if (scanResult.advertisementData.advName.isEmpty) {
      return const SizedBox.shrink();
    }

    return GestureDetector(
      onTap: () {
        final String? serviceUuid =
            scanResult.advertisementData.serviceUuids.isNotEmpty
                ? scanResult.advertisementData.serviceUuids[0].toString()
                : null;

        // 检查 serviceUuid 是否存在且长度足够，并判断第 34 个字符是否为 '1'
        final isPaired = !logic.isPaired(serviceUuid!);
        if (serviceUuid != null && isPaired) {
          action();
        }
      },
      child: Column(
        children: <Widget>[
          Container(
            height: 89.h,
            width: 1.sw,
            color: Colors.white,
            child: Row(
              children: <Widget>[
                SizedBox(width: 20.w),
                Image.asset(
                  lockTypeIcon,
                  width: 56.w,
                  height: 56.w,
                ),
                SizedBox(width: 20.w),
                Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    // 第32、33两位00 表示休眠， 01表示唤醒
                    Text(scanResult.advertisementData.advName,
                        style: TextStyle(
                            fontSize: 20.sp,
                            color: logic.isSleeping(
                              scanResult.advertisementData.serviceUuids[0]
                                  .toString(),
                            )
                                ? Colors.grey
                                : AppColors.blackColor)),
                  ],
                ),
                SizedBox(
                  width: 10.w,
                ),
                Image.asset(
                  'images/mine/icon_mine_main_about.png',
                  width: 22.w,
                  height: 22.w,
                ),
                Expanded(child: SizedBox(width: 20.w)),
                Image.asset(
                  'images/main/icon_main_addLock.png',
                  width: 36.w,
                  height: 36.w,
                  color: AppColors.mainColor,
                ),
                SizedBox(width: 30.w),
              ],
            ),
          ),
        ],
      ),
    );
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();

    /// 路由订阅
    AppRouteObserver().routeObserver.subscribe(this, ModalRoute.of(context)!);
  }

  @override
  void dispose() {
    /// 取消路由订阅
    AppRouteObserver().routeObserver.unsubscribe(this);
    super.dispose();
  }

  /// 从上级界面进入 当前界面即将出现
  @override
  void didPush() {
    super.didPush();
  }

  /// 返回上一个界面 当前界面即将消失
  @override
  void didPop() {
    super.didPop();
    EasyLoading.isShow ? EasyLoading.dismiss() : null;
    state.ifCurrentScreen.value = false;
    logic.cancelBlueConnetctToastTimer();
    logic.stopScanBlueList();
  }

  /// 从下级返回 当前界面即将出现
  @override
  void didPopNext() {
    super.didPopNext();
    state.ifCurrentScreen.value = true;
    logic.startScanBlueList();
  }

  /// 进入下级界面 当前界面即将消失
  @override
  void didPushNext() {
    super.didPushNext();
    state.ifCurrentScreen.value = false;
    logic.cancelBlueConnetctToastTimer();
    logic.stopScanBlueList();
  }
}