import 'dart:convert';
import 'dart:math' as mm;

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:flutter_swiper_view/flutter_swiper_view.dart';
import 'package:get/get.dart';
import 'package:huixiang/constant.dart';
import 'package:huixiang/data/activity.dart';
import 'package:huixiang/data/base_data.dart';
import 'package:huixiang/data/base_list_data.dart';
import 'package:huixiang/data/member_vo.dart';
import 'package:huixiang/data/mini_detail.dart';
import 'package:huixiang/data/shopping_cart.dart';
import 'package:huixiang/data/store_info.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/min_api.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/store/shop/shop_scroll_controller.dart';
import 'package:huixiang/store/shop/shop_scroll_coordinator.dart';
import 'package:huixiang/store/store_view/people_num.dart';
import 'package:huixiang/store/store_view/product_sku.dart';
import 'package:huixiang/store/store_view/shop_car.dart';
import 'package:huixiang/store/store_view/store_info.dart';
import 'package:huixiang/store/store_view/store_order_list.dart';
import 'package:huixiang/utils/constant.dart';
import 'package:huixiang/utils/flutter_utils.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/utils/shared_preference.dart';
import 'package:huixiang/view_widget/custom_image.dart';
import 'package:huixiang/view_widget/receive_success.dart';
import 'package:huixiang/view_widget/round_button.dart';
import 'package:intl/intl.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

class StoreOrderPage extends StatefulWidget {
  final Map<String, dynamic>? arguments;

  StoreOrderPage({this.arguments});

  @override
  State<StatefulWidget> createState() {
    return _StoreOrderPage();
  }
}

class _StoreOrderPage extends State<StoreOrderPage>
    with TickerProviderStateMixin {
  TabController? tabcontroller;
  ApiService? apiService;
  MinApiService? minService;
  StoreInfo? storeInfo;
  List<Activity>? activitys;
  StoreOrderListPage? storeOrderListPage;
  ScrollPhysics scrollPhysics = NeverScrollableScrollPhysics();

  ShoppingCart? shopCarGoods;
  int tableId = 0;
  String parentId = "";
  String parentCode = "";
  String tenant = "";
  String storeId = "";
  int numberOfPeople = 0;
  String? vipLevelName;
  MemberVo? memberVo;
  MiniDetail? miniDetail;

  ///小程序token
  String? minToken;
  String? pName;
  String? pid;
  String? cName;
  String? cid;

  @override
  void initState() {
    super.initState();
    _shopCoordinator = ShopScrollCoordinator();

    tableId = widget.arguments?["tableId"] ?? 0;
    tenant = widget.arguments?["tenant"];
    storeId = widget.arguments?["id"];

    tabcontroller = TabController(length: 1, vsync: this);

    _pageScrollController = _shopCoordinator.pageScrollController(0);

    apiService = ApiService(
      Dio(),
      context: context,
      token: SharedInstance.instance.token,
    );
    minLogin();
  }

  /// 小程序登录
  minLogin() async {
    S.current.zhengzaijiazai.loading;
    minToken = widget.arguments?["miniToken"];
    await queryStoreInfo();
    SharedInstance.instance.saveMini(minToken, tenant, storeId);
    minService = MinApiService(
      Dio(),
      context: context,
      token: minToken ?? "",
      tenant: tenant,
      storeId: storeId,
    );

    queryMemberInfo();

    queryShopCar().then((value) {
      this.shopCarGoods = value;
      setState(() {});
    });
    if (tableId > 0) {
      getParentInfo();
    }
  }

  ///会员信息
  queryMemberInfo() async {
    BaseData? baseData = await minService?.memberInfo().catchError((error) {
      debugPrint("${error}");
      return BaseData()..isSuccess = false;
    });
    if (baseData?.isSuccess ?? false) {
      SharedInstance.instance.saveMiniMember(jsonEncode(baseData!.data));
      memberVo = MemberVo.fromJson(baseData.data);
    }
  }

  ///获取父订单（火锅订单加菜前调用）
  getParentInfo() async {
    BaseData? baseData =
        await minService?.getParentInfo("$tableId").catchError((error) {
      debugPrint("${error}");
      return BaseData()..isSuccess = false;
    });
    if (baseData?.isSuccess ?? false) {
      if (baseData?.data != null) {
        parentId = baseData!.data["id"];
        parentCode = baseData.data["parentCode"];
      } else {
        queryStoreInfo1();
      }
    }
  }

  ///获取桌子信息
  queryStoreInfo1() async {
    BaseData<StoreInfo>? baseData = await minService?.queryStoreInfo1({
      "getCoupon": true,
      "storeId": storeId,
      "tableId": tableId,
    }).catchError((error) {
      debugPrint("${error}");
      return BaseData<StoreInfo>()..isSuccess = false;
    });
    if ((baseData?.isSuccess ?? false) && baseData?.data != null) {
      StoreInfo storeInfo = baseData!.data!;
      showPeopleNum(storeInfo.storeTable?.tableName);
    }
  }

  /// 查询店铺信息
  queryStoreInfo() async {
    BaseData<StoreInfo>? baseData =
        await apiService?.queryStoreInfo(storeId).catchError((error) {
      debugPrint("${error}");
      return BaseData<StoreInfo>()..isSuccess = false;
    });
    if ((baseData?.isSuccess ?? false) && baseData?.data != null) {
      storeInfo = baseData!.data;
      activitys = storeInfo?.informationVOPageVO?.list
          ?.map((e) => Activity.fromJson(e))
          .toList();
      if (mounted) {
        setState(() {});
      }
    }
  }

  RefreshController? refreshController;
  bool dialogShowing = false;

  final ScrollController controller1 = ScrollController();
  final ScrollController controller2 = ScrollController();

  late ShopScrollCoordinator _shopCoordinator;
  ShopScrollController? _pageScrollController;

  @override
  Widget build(BuildContext context) {
    return PopScope(
      onPopInvoked: (isPop) {
        if (dialogShowing) {
          SmartDialog.dismiss();
        }
      },
      canPop: true,
      child: Container(
        color: Colors.white,
        child: Stack(
          children: [
            Positioned(
              left: 0,
              right: 0,
              top: 0,
              bottom: 54.h,
              child: Listener(
                onPointerUp: _shopCoordinator.onPointerUp,
                child: CustomScrollView(
                  controller: _pageScrollController,
                  physics: ClampingScrollPhysics(),
                  slivers: [
                    SliverAppBar(
                      expandedHeight: 360.h,
                      pinned: true,
                      collapsedHeight: kToolbarHeight,
                      systemOverlayStyle: SystemUiOverlayStyle.dark,
                      surfaceTintColor: Colors.white,
                      backgroundColor: Colors.white,
                      flexibleSpace: FlexibleSpaceBar(
                        title: Title(
                          _pageScrollController!,
                          storeInfo?.storeName ?? '',
                        ),
                        centerTitle: false,
                        titlePadding: EdgeInsets.symmetric(
                          vertical: 10,
                        ),
                        background: Container(
                          child: Stack(
                            children: [
                              Positioned.fill(
                                child: Column(
                                  children: [
                                    buildSwiper(),
                                    Spacer(),
                                  ],
                                ),
                              ),
                              Positioned(
                                top: 0,
                                left: 0,
                                right: 0,
                                child: Container(
                                  height: kToolbarHeight,
                                  decoration: BoxDecoration(
                                    gradient: LinearGradient(
                                      colors: [
                                        Colors.white.withAlpha(60),
                                        Colors.white.withAlpha(30),
                                        Colors.transparent,
                                      ],
                                      begin: Alignment.topCenter,
                                      end: Alignment.bottomCenter,
                                    ),
                                  ),
                                ),
                              ),
                              Positioned(
                                child: Container(
                                  decoration: BoxDecoration(
                                    borderRadius: BorderRadius.vertical(
                                      top: Radius.circular(18),
                                    ),
                                  ),
                                  child: StoreInfoView(
                                    storeInfo,
                                    widget.arguments?["distance"],
                                  ),
                                ),
                                top: 300,
                                left: 0,
                                right: 0,
                              ),
                              Positioned(
                                top: 40,
                                left: 10,
                                child: GestureDetector(
                                  behavior: HitTestBehavior.opaque,
                                  onTap: () {
                                    Navigator.of(context).pop();
                                  },
                                  child: Container(
                                    padding: EdgeInsets.all(10.h),
                                    child: Icon(
                                      Icons.arrow_back_ios,
                                      color: Colors.black,
                                      size: 24,
                                    ),
                                  ),
                                ),
                              )
                            ],
                          ),
                        ),
                      ),
                      centerTitle: false,
                      leadingWidth: 0,
                      automaticallyImplyLeading: false,
                    ),
                    SliverPersistentHeader(
                      pinned: true,
                      floating: false,
                      delegate: _SliverAppBarDelegate(
                        maxHeight: 50,
                        minHeight: 50,
                        child: Container(
                          width: Get.width,
                          decoration: BoxDecoration(
                            color: Colors.white,
                            borderRadius: BorderRadius.only(
                              topLeft: Radius.circular(8),
                              topRight: Radius.circular(8),
                            ),
                          ),
                          child: Row(
                            children: [
                              20.vd,
                              Column(
                                mainAxisAlignment: MainAxisAlignment.center,
                                children: [
                                  Text(
                                    // Color(0xFF32A060),
                                    S.of(context).diandan,
                                    style: TextStyle(
                                      color: Colors.black,
                                      fontSize: 18.sp,
                                      fontWeight: FontWeight.bold,
                                    ),
                                  ),
                                  5.d,
                                  Container(
                                    width: 20,
                                    height: 3,
                                    decoration: BoxDecoration(
                                      borderRadius: BorderRadius.circular(2),
                                      color: Color(0xFF32A060),
                                    ),
                                  ),
                                  10.d,
                                ],
                              ),
                              Spacer(),
                            ],
                          ),
                        ),
                      ),
                    ),
                    SliverFillRemaining(
                      child: StoreOrderListPage(
                        widget.arguments,
                        activitys,
                        storeInfo,
                        shopCarGoods,
                        _shopCoordinator,
                        minToken,
                        tenant,
                        tableId,
                        _queryMiNiDetail,
                        () {
                          queryShopCar().then((value) {
                            this.shopCarGoods = value;
                            setState(() {});
                          });
                        },
                        scrollPhysics,
                      ),
                    ),
                  ],
                  // pinnedHeaderSliverHeightBuilder: () {
                  //   final double statusBarHeight = MediaQuery.of(context).padding.top;
                  //   return statusBarHeight + kToolbarHeight + 38;
                  // },
                  // body: StoreOrderListPage(
                  //   widget.arguments,
                  //   activitys,
                  //   storeInfo,
                  //   shopCarGoods,
                  //   controller1,
                  //   controller2,
                  //   nestedScrollViewKey,
                  //   minToken,
                  //   tenant,
                  //   tableId,
                  //   _queryMiNiDetail,
                  //       () {
                  //     queryShopCar().then((value) {
                  //       this.shopCarGoods = value;
                  //       setState(() {});
                  //     });
                  //   },
                  //   scrollPhysics,
                  // ),
                ),
              ),
            ),
            Positioned(
              bottom: 30,
              left: 0,
              right: 0,
              child: Container(
                margin: EdgeInsets.symmetric(horizontal: 14),
                height: 45.h,
                // color: Color(0xFFFAFAFA),
                decoration: BoxDecoration(
                  color: Color(0xFF383A38),
                  borderRadius: BorderRadius.circular(100),
                ),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceAround,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    SizedBox(
                      width: 70,
                      child:  InkWell(
                          onTap: () {
                            if (count() != 0) showShoppingCart();
                          },
                          child: Stack(
                            alignment: Alignment.bottomLeft,
                            children: [
                              Positioned(
                                left: 5.h,
                                top: 5.h,
                                bottom: 5.h,
                                child:Image.asset(
                                  "assets/image/shopping_bag.png",
                                  width: 35.h,
                                  height: 35.h,
                                  fit: BoxFit.fitWidth,
                                ),
                              ),
                              if (count() != 0)
                                Positioned(
                                  right: 5,
                                  top: 5,
                                  child: RoundButton(
                                    width: 17.w,
                                    height: 17.h,
                                    text: "${count()}",
                                    textColor: Colors.white,
                                    fontWeight: MyFontWeight.regular,
                                    backgroup: Color(0xFFF65720),
                                    fontSize: 12.sp,
                                    radius: 100,
                                  ),
                                ),
                            ],
                          ),
                      ),
                    ),
                    Text.rich(
                      TextSpan(
                        children: [
                          TextSpan(
                            text: "￥ ",
                            style: TextStyle(
                              fontSize: 12.sp,
                              color: Color(0xFFFFFFFF),
                              fontWeight: MyFontWeight.bold,
                            ),
                          ),
                          TextSpan(
                            text: "${shopCarGoods?.cartSum ?? 0}",
                            style: TextStyle(
                              fontSize: 20.sp,
                              fontFamily: 'JDZhengHT',
                              color: Color(0xFFFFFFFF),
                              fontWeight: MyFontWeight.medium,
                            ),
                          ),
                        ],
                      ),
                    ),
                    Spacer(),
                    GestureDetector(
                      onTap: () {
                        if (AppUtils.compareTime(
                                storeInfo?.openStartTime,
                                DateFormat('HH:mm:ss')
                                    .format(DateTime.now())) &&
                            (!AppUtils.compareTime(
                                storeInfo?.openEndTime,
                                DateFormat('HH:mm:ss')
                                    .format(DateTime.now())))) {
                          toDownOrder();
                        } else
                          SmartDialog.showToast(
                              "营业时间:${storeInfo?.openStartTime}-${storeInfo?.openEndTime}",
                              alignment: Alignment.center);
                      },
                      child: RoundButton(
                        width: 103.w,
                        height: 54.h,
                        text: S.current.jiesuan,
                        textColor: Colors.white,
                        fontWeight: MyFontWeight.bold,
                        backgroup: Color(0xFF32A060),
                        radius: 100,
                        fontSize: 16.sp,
                        padding: EdgeInsets.symmetric(vertical: 5.h),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  ///领取优惠券
  _receiveCoupon(couponId) async {
    BaseData? baseData = await apiService?.receiveCoupon(couponId);
    if (baseData?.isSuccess ?? false) {
      queryStoreInfo();
      showAlertDialog();
    }
  }

  /// 领取成功弹窗
  showAlertDialog() {
    //显示对话框
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return ReceiveSuccess();
      },
    );
  }

  ///显示选择人数的弹窗
  showPeopleNum(String? tableName) async {
    var people = await showDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) {
        return PeopleNumView(tableName ?? "");
      },
    );

    if (people != null && people > 0) {
      setState(() {
        this.numberOfPeople = people;
      });
    } else {
      Navigator.of(context).pop();
    }
  }

  ///计算个数
  int count() {
    if (shopCarGoods?.shoppingCartSkuItemList?.isEmpty ?? true) return 0;
    int count = 0;
    shopCarGoods?.shoppingCartSkuItemList?.forEach((element) {
      count += (element.buyNum ?? 0);
    });
    return count;
  }

  ///去下单结算页面
  toDownOrder() async {
    int num = count();

    if (parentId == "") {
      if (num == 0) {
        SmartDialog.showToast("请先选择您要购买的商品！～", alignment: Alignment.center);
        return;
      }
    }

    await Navigator.of(context).pushNamed(
      '/router/settlement',
      arguments: {
        "storeInfo": storeInfo,
        "tableId": tableId,
        "parentCode": parentCode,
        "parentId": parentId,
        // "pName": pName,
        "pid": pid,
        // "cName": cName,
        "cid": cid,
        "shoppingCart": shopCarGoods,
        "numberOfPeople": numberOfPeople,
        "distance": widget.arguments?["distance"],
        "vipLevelName": memberVo?.memberRankVo?.rankName ?? "",
        "isVips": memberVo?.isVip ?? false,
        "subscribeParam": miniDetail?.subscribeParam,
      },
    );

    if (miniDetail?.subscribeParam?.isEnableSubscribe ?? false) {
      clearShopCar();
      this.shopCarGoods = await queryShopCar();
    }

    if (tableId > 0) {
      getParentInfo();
    }
    queryShopCar().then((value) {
      this.shopCarGoods = value;
      setState(() {});
    });
  }

  Widget buildSwiper() {
    return Container(
      width: double.infinity,
      height: 240.h,
      child: Swiper(
        pagination: SwiperPagination(
          alignment: Alignment.bottomCenter,
          builder: DotSwiperPaginationBuilder(
            size: 8.w,
            activeSize: 8.w,
            space: 5.w,
            activeColor: Colors.white,
            color: Colors.white.withAlpha(76),
          ),
          margin: EdgeInsets.only(bottom: 13.h),
        ),
        autoplay: storeInfo?.bannerList?.isNotEmpty ?? false,
        duration: 1000,
        autoplayDelay: 2000,
        itemBuilder: (context, position) {
          return Container(
            child: MImage(
              (position < (storeInfo?.bannerList?.length ?? 0))
                  ? (storeInfo?.bannerList![position].imgUrl ?? "")
                  : "",
              height: 230.h,
              width: double.infinity,
              fit: BoxFit.cover,
              radius: BorderRadius.zero,
              errorSrc: "assets/image/default_2_1.webp",
              fadeSrc: "assets/image/default_2_1.webp",
            ),
          );
        },
        itemCount: storeInfo?.bannerList?.length ?? 1,
      ),
    );
  }

  /// 购物车的key,用于刷新UI
  GlobalKey shopCartKey = GlobalKey();

  ///购物车弹窗
  showShoppingCart() {
    queryShopCar().then((value) {
      this.shopCarGoods = value;
      dialogShowing = true;
      SmartDialog.show(
        builder: (ctx) {
          return ShopCar(
            shopCartKey,
            this.shopCarGoods,
            clearShopCar,
            toDownOrder,
            shopCartAdd,
            shopCartReduce,
          );
        },
        onDismiss: () {
          dialogShowing = false;
        },
        alignment: Alignment.bottomCenter,
      );
    });
  }

  ///清空购物车
  clearShopCar() async {
    BaseData<bool>? baseData =
        await minService?.clearShoppingCart(num.parse(storeId));
    if (baseData?.isSuccess ?? false) {
      shopCarGoods = null;
      setState(() {});
    }
  }

  ///选规格
  _queryMiNiDetail(String id, int count) async {
    S.current.zhengzaijiazai.loading;
    if (count < 0) {
      shopCarGoods?.shoppingCartSkuItemList?.forEach((element) async {
        if (element.productId == id) {
          await shopCartReduce(element);
          setState(() {});
        }
      });
      return;
    }
    BaseData<MiniDetail>? baseData = await minService?.miNiDetail(id);
    if (baseData?.isSuccess ?? false) {
      miniDetail = baseData!.data;
      if (baseData.data != null) {
        showStoreSelector(baseData.data!, id, count);
      }
    }
  }

  ///选规格弹窗
  showStoreSelector(MiniDetail miniDetail, String? id, int count) async {
    if (miniDetail.attrStyle == 0) {
      _addShopCar(miniDetail, [], count);
    } else {
      SmartDialog.dismiss();
      dialogShowing = true;
      showModalBottomSheet(
        backgroundColor: Colors.transparent,
        context: context,
        isDismissible: false,
        builder: (_) {
          return ProductSku(
            miniDetail,
            shopCarGoods,
            id,
            _addShopCar,
            add,
            reduce,
          );
        },
      );
    }
  }

  ///添加购物车
  Future _addShopCar(MiniDetail? miniDetail, selectSkus, int count) async {
    ProductSkuVOList? productSku;
    if (selectSkus != null && selectSkus.length == 0) {
      productSku = miniDetail?.productSkuVOList?.first;
    } else {
      productSku = miniDetail?.productSkuVOList?.firstWhere((element) {
        bool gg = true;
        selectSkus.forEach((element1) {
          if ((element.skuNameStr?.indexOf(element1) ?? 0) < 0) {
            gg = false;
            return gg;
          }
        });
        return gg;
      });
    }
    String? skuId = productSku?.id;
    String skuValue = selectSkus
        .toString()
        .replaceAll("[", "")
        .replaceAll("]", "")
        .replaceAll(",", "");

    if (miniDetail?.subscribeParam?.isEnableSubscribe ?? false) {
      clearShopCar();
    }

    BaseListData<ShoppingCart>? baseDate = await minService?.addShoppingCart({
      "storeId": storeInfo?.id,
      "storeName": storeInfo?.storeName ?? "",
      "numberOfPeople": numberOfPeople,
      "tableId": tableId,
      "parentId": parentId,
      "parentCode": parentCode,
      "shoppingCartSkuItemList": [
        {
          "buyNum": count,
          "id": skuId,
          "productId": miniDetail?.id,
          "productName": miniDetail?.productName,
          "skuName": skuValue,
          "storeId": storeInfo?.id,
          "skuPrice": productSku?.skuPrice,
          "skuStock": productSku?.skuStock,
          "tableId": tableId,
        },
      ],
    }).catchLEr<ShoppingCart>();
    // SmartDialog.dismiss();
    if (baseDate?.isSuccess ?? false) {
      this.shopCarGoods = await queryShopCar();
      if (miniDetail?.subscribeParam?.isEnableSubscribe ?? false) toDownOrder();
      setState(() {});
    } else {
      if (baseDate?.msg?.isNotEmpty ?? false) {
        SmartDialog.showToast(
          "${baseDate?.msg}",
          alignment: Alignment.center,
        );
      }
    }
  }

  ///查询购物车
  Future<ShoppingCart?> queryShopCar() async {
    pName = ""; //活动
    pid = ""; //活动
    cName = ""; //优惠券
    cid = ""; //优惠券
    if (storeInfo?.posType?.code == "NORMALSTORE" && tableId == 0) {
      return null;
    }
    BaseListData<ShoppingCart>? baseDate =
        await minService?.getShoppingCart(tableId).catchLEr<ShoppingCart>();
    if ((baseDate?.isSuccess ?? false) &&
        (baseDate!.data?.isNotEmpty ?? false)) {
      if (baseDate.data![0].selectDiscount == 1) {
        baseDate.data![0].couponList?.forEach((element) {
          if (element.isMaxCoupon ?? false) {
            // cName = element.promotionName;
            cid = element.id;
          }
        });
      } else if (baseDate.data![0].selectDiscount == 2) {
        baseDate.data![0].promotionInfoList?.forEach((element) {
          if (element.isMaxPromotion ?? false) {
            // pName = element.name;
            pid = element.id;
          }
        });
      }
      return baseDate.data![0];
    } else {
      return null;
    }
  }

  ///购物车➕1
  Future<ShoppingCart?> shopCartAdd(SkuItemList cartSkuItem) async {
    Map<String, dynamic> shopCarTemp = shopCarGoods?.toJson() ?? {};
    cartSkuItem.buyNum = (cartSkuItem.buyNum ?? 0) + 1;
    shopCarTemp["shoppingCartSkuItemList"] = [cartSkuItem.toJson()];
    BaseListData<ShoppingCart>? baseDate =
        await minService?.shoppingCartSingle(shopCarTemp);
    if (baseDate?.isSuccess ?? false) {
      this.shopCarGoods = await queryShopCar();
      shopCartKey.currentState?.setState(() {});
    } else {
      this.shopCarGoods = await queryShopCar();
      shopCartKey.currentState?.setState(() {});
      if (baseDate?.msg?.isNotEmpty ?? false) {
        SmartDialog.showToast(
          "${baseDate!.msg}",
          alignment: Alignment.center,
        );
      }
    }
    setState(() {});
    return this.shopCarGoods;
  }

  ///购物车➖1
  Future<ShoppingCart?> shopCartReduce(SkuItemList cartSkuItem) async {
    Map<String, dynamic> shopCarTemp = shopCarGoods?.toJson() ?? {};
    cartSkuItem.buyNum = (cartSkuItem.buyNum ?? 0) - 1;
    shopCarTemp["shoppingCartSkuItemList"] = [cartSkuItem.toJson()];
    BaseListData<ShoppingCart>? baseDate =
        await minService?.shoppingCartSingle(shopCarTemp);
    if (baseDate?.isSuccess ?? false) {
      this.shopCarGoods = await queryShopCar();
      if (shopCartKey.currentState != null) {
        shopCartKey.currentState!.setState(() {});
      }
      setState(() {});
    }
    return this.shopCarGoods;
  }

  ///商品➕1
  add(MiniDetail miniDetail, selectSkus) async {
    ProductSkuVOList? productSku =
        miniDetail.productSkuVOList?.firstWhere((element) {
      return skuY(element, selectSkus);
    });
    String? skuId = productSku?.id;
    int shopSkuIndex = shopCarGoods?.shoppingCartSkuItemList
            ?.indexWhere((element) => skuId == element.id) ??
        -1;
    Map<String, dynamic>? shopCarTemp = shopCarGoods?.toJson();
    shopCarGoods?.tableId = "$tableId";

    if (shopSkuIndex >= 0) {
      int buy =
          shopCarGoods?.shoppingCartSkuItemList?[shopSkuIndex].buyNum ?? 0;
      shopCarGoods?.shoppingCartSkuItemList?[shopSkuIndex].buyNum = (buy + 1);
      SkuItemList? cartSkuItem = shopCarGoods?.shoppingCartSkuItemList
          ?.firstWhere((element) => skuId == element.id);
      shopCarTemp?["shoppingCartSkuItemList"] = [cartSkuItem?.toJson()];
    } else {
      await _addShopCar(miniDetail, selectSkus, 1);
      return;
    }

    BaseListData<ShoppingCart>? baseDate =
        await minService?.shoppingCartSingle(shopCarTemp ?? {});
    if (baseDate?.isSuccess ?? false) {
      this.shopCarGoods = await queryShopCar();
      debugPrint("count.toString()");
      setState(() {});
    } else {
      SmartDialog.showToast("${baseDate?.msg}", alignment: Alignment.center);
    }
  }

  ///商品➖1
  reduce(MiniDetail miNiDetail, selectSkus) async {
    ProductSkuVOList? productSku =
        miNiDetail.productSkuVOList?.firstWhere((element) {
      return skuY(element, selectSkus);
    });
    String? skuId = productSku?.id;
    SkuItemList? shopSkuItem = shopCarGoods?.shoppingCartSkuItemList
        ?.firstWhere((element) => skuId == element.id);
    int shopSkuIndex = shopCarGoods?.shoppingCartSkuItemList
            ?.indexWhere((element) => skuId == element.id) ??
        -1;

    if ((shopSkuItem?.buyNum ?? 0) > 1) {
      int butNum =
          shopCarGoods?.shoppingCartSkuItemList?[shopSkuIndex].buyNum ?? 0;
      shopCarGoods?.shoppingCartSkuItemList?[shopSkuIndex].buyNum = butNum - 1;
    }
    shopCarGoods?.tableId = "$tableId";

    Map<String, dynamic>? shopCarTemp = shopCarGoods?.toJson();
    SkuItemList? cartSkuItem = shopCarGoods?.shoppingCartSkuItemList
        ?.firstWhere((element) => skuId == element.id);
    shopCarTemp?["shoppingCartSkuItemList"] = [cartSkuItem?.toJson()];

    BaseListData<ShoppingCart>? baseDate =
        await minService?.shoppingCartSingle(shopCarTemp ?? {});
    if (baseDate?.isSuccess ?? false) {
      queryShopCar().then((value) {
        this.shopCarGoods = value;
        setState(() {});
      });
    } else {
      SmartDialog.showToast(baseDate?.msg ?? "", alignment: Alignment.center);
    }
  }

  bool skuY(ProductSkuVOList productSku, selectSkus) {
    bool gg = true;
    selectSkus.forEach((element1) {
      if ((productSku.skuNameStr?.indexOf(element1) ?? 0) < 0) {
        gg = false;
        return gg;
      }
    });
    return gg;
  }
}

class Title extends StatefulWidget {
  final ShopScrollController controller;
  final String title;

  // final Function scrollChange;

  Title(this.controller, this.title /*, this.scrollChange*/);

  @override
  State<StatefulWidget> createState() {
    return _Title();
  }
}

class _Title extends State<Title> {
  double alpha = 0;

  @override
  void initState() {
    super.initState();
    widget.controller.addListener(() {
      double maxScrollExtent = widget.controller.position.maxScrollExtent;
      debugPrint(
          " maxScrollExtent: $maxScrollExtent   offset: ${widget.controller.offset}    s/m: ${(widget.controller.offset / maxScrollExtent)}");
      double alphaTemp =
          (widget.controller.offset / maxScrollExtent) > 0.70 ? 1 : 0;
      if (alpha != alphaTemp && mounted) {
        alpha = alphaTemp;
        setState(() {});
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Container(
        alignment: Alignment.bottomLeft,
        height: kToolbarHeight,
        child: alpha == 0
            ? null
            : Container(
                child: Row(
                  children: [
                    GestureDetector(
                      behavior: HitTestBehavior.opaque,
                      onTap: () {
                        Navigator.of(context).pop();
                      },
                      child: Container(
                        margin: EdgeInsets.only(left: 10.w),
                        padding: EdgeInsets.all(10.h),
                        child: Icon(
                          Icons.arrow_back_ios,
                          color: Colors.black,
                          size: 24,
                        ),
                      ),
                    ),
                    Expanded(
                      child: Text(
                        widget.title ?? "",
                        overflow: TextOverflow.ellipsis,
                        style: TextStyle(
                          color: Colors.black,
                          fontWeight: FontWeight.bold,
                          fontSize: 18.sp,
                        ),
                      ),
                    ),
                  ],
                ),
              ));
  }
}

class _SliverAppBarDelegate extends SliverPersistentHeaderDelegate {
  _SliverAppBarDelegate({
    required this.minHeight,
    required this.maxHeight,
    required this.child,
  });

  final double minHeight;
  final double maxHeight;
  final Widget child;

  @override
  double get minExtent => this.minHeight;

  @override
  double get maxExtent => mm.max(maxHeight, minHeight);

  @override
  Widget build(
      BuildContext context, double shrinkOffset, bool overlapsContent) {
    return SizedBox.expand(child: child);
  }

  @override
  bool shouldRebuild(_SliverAppBarDelegate oldDelegate) {
    return maxHeight != oldDelegate.maxHeight ||
        minHeight != oldDelegate.minHeight ||
        child != oldDelegate.child;
  }
}