app/lib/pages/home/classify/commodity_detail_page.dart

/*
 * ====================================================
 * package   : pages.home.classify
 * author    : Created by nansi.
 * time      : 2019/5/20  2:47 PM 
 * remark    : 
 * ====================================================
 */

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:recook/base/base_store_state.dart';
import 'package:recook/constants/header.dart';
import 'package:recook/manager/http_manager.dart';
import 'package:recook/manager/user_manager.dart';
import 'package:recook/models/base_model.dart';
import 'package:recook/models/goods_detail_model.dart';
import 'package:recook/pages/home/classify/brandgoods_list_page.dart';
import 'package:recook/pages/home/classify/goods_page.dart';
import 'package:recook/pages/home/classify/material_page.dart' as MP;
import 'package:recook/pages/home/classify/mvp/goods_detail_model_impl.dart';
import 'package:recook/pages/home/widget/modify_detail_app_bar.dart';
import 'package:recook/pages/home/widget/modify_detail_bottom_bar.dart';
import 'package:recook/utils/share_tool.dart';
import 'package:recook/utils/user_level_tool.dart';
import 'package:recook/widgets/cache_tab_bar_view.dart';
import 'package:recook/widgets/toast.dart';

class CommodityDetailPage extends StatefulWidget {
  final Map arguments;

  const CommodityDetailPage({Key key, this.arguments}) : super(key: key);

  static setArguments(int goodsID) {
    return {"goodsID": goodsID};
  }

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

class _CommodityDetailPageState extends BaseStoreState<CommodityDetailPage>
    with TickerProviderStateMixin {
  TabController _tabController;
  AppBarController _appBarController;
  BottomBarController _bottomBarController;
  ValueNotifier<bool> _openSkuChoosePage = ValueNotifier(false);
  int _goodsId;
  GoodsDetailModel _goodsDetail;

  @override
  void initState() {
    super.initState();
    _goodsId = widget.arguments["goodsID"];
    _tabController = TabController(length: 2, vsync: this);
    _appBarController = AppBarController();
    _bottomBarController = BottomBarController();

    _tabController.addListener(() {
      if (_tabController.index == 1) {
        _bottomBarController.hidden.value = true;
      } else {
        _bottomBarController.hidden.value = false;
      }
    });
    _getDetail();
    UserManager.instance.refreshShoppingCartNumberWithPage.addListener(_refreshShoppingCartNumberWithPageListener);
    UserManager.instance.refreshGoodsDetailPromotionState.addListener(_refreshPromotionState);
  }

  _refreshPromotionState(){
    _getDetail();
  }

  _refreshShoppingCartNumberWithPageListener()  {
    _updateShoppingCartNum();
  }

  @override
  void dispose() {
    _tabController?.dispose();
    _bottomBarController?.dispose();
    _appBarController?.dispose();
    UserManager.instance.refreshShoppingCartNumberWithPage.removeListener(_refreshShoppingCartNumberWithPageListener);
    UserManager.instance.refreshGoodsDetailPromotionState.removeListener(_refreshPromotionState);
    super.dispose();
  }

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

  _updateShoppingCartNum() async {
    if (UserManager.instance.refreshShoppingCartNumber.value || UserManager.instance.refreshShoppingCartNumberWithPage.value) {
      UserManager.instance.refreshShoppingCartNumber.value = false;
      UserManager.instance.refreshShoppingCartNumberWithPage.value = false;
      GoodsDetailModel model = await GoodsDetailModelImpl.getDetailInfo(_goodsId, UserManager.instance.user.info.id);
      if (model.code != HttpStatus.SUCCESS) {
        return;
      }
      _goodsDetail.data.shoppingTrolleyCount = model.data.shoppingTrolleyCount;
      setState(() {});
    }else{
      
    }
  }

  @override
  Widget buildContext(BuildContext context, {store}) {
    
      Scaffold scaffold = Scaffold(
    // return Scaffold(
      // backgroundColor: AppColor.frenchColor,
      backgroundColor: Colors.white,
      body: SafeArea(
        top: false,
        bottom: true,
        child: Stack(
          children: <Widget>[
            Positioned(
                top: 0,left: 0,right: 0,bottom: 0,
                child: Column(
                  children: <Widget>[
                    Expanded(
                      flex: 1,
                      child: CacheTabBarView(controller: _tabController, children: [
                          GoodsPage(
                            openbrandList: (){
                              // _goodsDetail.data.brandId;
                              AppRouter.push(
                                context, 
                                RouteName.BRANDGOODS_LIST_PAGE,
                                arguments: BrandGoodsListPage.setArguments(_goodsDetail.data.brand.id, _goodsDetail.data.brand.name));
                            },
                            goodsId: _goodsId,
                            openSkuChoosePage: _openSkuChoosePage,
                            goodsDetail: _goodsDetail,
                            onScroll: (notification) {
                              // double maxScroll = notification.metrics.maxScrollExtent;
                              double offset = notification.metrics.pixels;
                              double scale = offset / 180;
                              scale = scale.clamp(0.0, 1.0);

                              _appBarController.scale.value = scale;

                              // if (offset > maxScroll + 5) {
                              //   _tabController.animateTo(1);
                              // }
                            },
                          ),
                        // DetailPage(
                        //   goodsID: _goodsId,
                        // ),
                        MP.MaterialPage(goodsID: _goodsId,),
                      ]),
                    ),
                    _bottomBar()
                  ],
                )),
            Positioned(
              top: 0,
              right: 0,
              left: 0,
              child: _buildCustomAppBar(context),
              // child: Container(),
            ),
          ],
        ),
      ),
    );
    //黑色
    // SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark);
    // return scaffold;
    return AnnotatedRegion<SystemUiOverlayStyle>(value: SystemUiOverlayStyle.dark, child: scaffold,);
  }

  _buildCustomAppBar(BuildContext context) {
    return DetailAppBar(
      tabBar: _buildTabBar(),
      controller: _appBarController,
      // onShareClick: () {
      //   _showShare(context);
      // },
    );
  }

  TabBar _buildTabBar() {
    return TabBar(
        isScrollable: true,
        labelPadding: EdgeInsets.symmetric(horizontal: 10, vertical: 5),
        indicatorColor: AppColor.themeColor,
        indicatorSize: TabBarIndicatorSize.label,
        controller: _tabController,
        tabs: [
          Text("商品", style: TextStyle(color: Colors.black)),
          // Text("详情", style: TextStyle(color: Colors.black)),
          Text(
            "发现",
            style: TextStyle(color: Colors.black),
          ),
        ]);
  }

  _bottomBar() {
    return DetailBottomBar(
      goodsDetail: _goodsDetail,
      controller: _bottomBarController,
      collected: _goodsDetail == null ? false : _goodsDetail.data.isFavorite,
      shopCartNum: _goodsDetail?.data==null ? '': _goodsDetail.data.shoppingTrolleyCount > 99 ? "99+":_goodsDetail.data.shoppingTrolleyCount == 0 ? "":_goodsDetail.data.shoppingTrolleyCount.toString(),
      addToShopCartListener: () {
        AppRouter.push(context, RouteName.GOODS_SHOPPING_CART);
      },
      collectListener: (bool favorite) {
        if (favorite) {
          if (UserManager.instance.user.info.id == 0) {
            AppRouter.pushAndRemoveUntil(context, RouteName.LOGIN);
            Toast.showError('请先登录...');
            return;
          }
          _addFavorite();
        } else {
          _cancelFavorite();
        }
//        GoodsDetailModelImpl.
      },
      buyListener: () {
        _openSkuChoosePage.value = true;
      },
      shareListener: () {
        _showShare(context);
      },
    );
  }



  _showShare(BuildContext context) {
    if (UserLevelTool.currentRoleLevelEnum() ==  UserRoleLevel.Vip || UserLevelTool.currentRoleLevelEnum() ==  UserRoleLevel.None){
      //跳到分享邀请
      // _showInviteShare(context);
      ShareTool().inviteShare(context);
      return;
    }
    String goodsTitle = "${_goodsDetail.data.getPriceString()} | ${_goodsDetail.data.goodsName} | ${_goodsDetail.data.description}";
    ShareTool().goodsShare(
      context, 
      goodsPrice: _goodsDetail.data.getPriceString(),
      miniTitle: goodsTitle,
      goodsName: _goodsDetail.data.goodsName,
      goodsDescription: _goodsDetail.data.description,
      miniPicurl: _goodsDetail.data.mainPhotos.length > 0 ? _goodsDetail.data.mainPhotos[0].url : "",
      goodsId: _goodsDetail.data.id.toString(), 
      amount: _goodsDetail.data.price.min.commission > 0 ?
        _goodsDetail.data.price.min.commission.toString()
        : ""
    );
  }

  _getDetail() async {
    _goodsDetail =
        await GoodsDetailModelImpl.getDetailInfo(_goodsId, UserManager.instance.user.info.id);
    if (_goodsDetail.code != HttpStatus.SUCCESS) {
      Toast.showError(_goodsDetail.msg);
      return;
    }
    _bottomBarController.setFavorite(_goodsDetail.data.isFavorite);
    setState(() {});
  }

  _addFavorite() async {
    HttpResultModel<BaseModel> resultModel = await GoodsDetailModelImpl.favoriteAdd(
        UserManager.instance.user.info.id, _goodsDetail.data.id);
    if (!resultModel.result) {
      Toast.showInfo(resultModel.msg);
      return;
    }
    _bottomBarController.setFavorite(true);
  }

  _cancelFavorite() async {
    HttpResultModel<BaseModel> resultModel = await GoodsDetailModelImpl.favoriteCancel(
        UserManager.instance.user.info.id, _goodsDetail.data.id);
    if (!resultModel.result) {
      Toast.showInfo(resultModel.msg);
      return;
    }
    _bottomBarController.setFavorite(false);
  }
}