app/lib/paegs/gang_page/gang_page.dart

import 'dart:convert';

import 'package:azlistview/azlistview.dart';
import 'package:bbyyy/beans/my_shop_bean_entity.dart';
import 'package:bbyyy/https/MyDio.dart';
import 'package:bbyyy/https/url.dart';
import 'package:bbyyy/my_tools/const.dart';
import 'package:bbyyy/my_tools/dims.dart';
import 'package:bbyyy/my_tools/event_bus.dart';
import 'package:bbyyy/my_tools/my_colors.dart';
import 'package:bbyyy/my_tools/my_cookie.dart';
import 'package:bbyyy/my_tools/my_tools.dart';
import 'package:bbyyy/my_tools/my_views.dart';
import 'package:bbyyy/paegs/gang_page/create_a_gang_page/create_a_gang_page.dart';
import 'package:bbyyy/paegs/gang_page/gang_in_page/gang_in_page.dart';
import 'package:bbyyy/paegs/gang_page/join_the_gang_page/join_the_gang_page.dart';
import 'package:bbyyy/paegs/gang_page/query_gang_page/query_gang_page.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:lpinyin/lpinyin.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

import 'application_page/application_page.dart';

class GangPage extends StatefulWidget {
  @override
  _GangPageState createState() => _GangPageState();
}

class _GangPageState extends State<GangPage>
    with AutomaticKeepAliveClientMixin {
  List<PopupMenuItem> popItems = [];
  List<MyShopBeanDataData> data = [];
  List<MyShopBeanDataData> applications = [];
  int page = 1;
  RefreshController controller = RefreshController(initialRefresh: true);
  bool needRE = false;
  int sIndex = 0;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    EventBus().on('needRE', (arg) {
      print(arg);
      needRE = arg;
    });
    popItems.add(PopupMenuItem(
      child: Text(
        '创建货帮',
        style: TextStyle(color: MyColors.c666666, fontSize: 14),
      ),
      value: '创建货帮',
    ));
    popItems.add(PopupMenuItem(
      child: Text(
        '加入货帮',
        style: TextStyle(color: MyColors.c666666, fontSize: 14),
      ),
      value: '加入货帮',
    ));
  }

  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    EventBus().off('needRE');
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Stack(
        children: [
          appBar(context),
          Container(
            margin:
                EdgeInsets.only(top: MediaQuery.of(context).padding.top + 50),
            decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.only(
                    topLeft: Radius.circular(16),
                    topRight: Radius.circular(16))),
            child: SmartRefresher(
              controller: controller,
              onRefresh: onRefresh,
              onLoading: onLoading,
              enablePullDown: true,
              enablePullUp: true,
              child: AzListView(
                padding: EdgeInsets.only(right: 20),
                itemBuilder: (c, index) {
                  return getGangItem(data[index]);
                },
                itemCount: data.length,
                data: data,
              ),
            ),
          )
        ],
      ),
    );
  }

  Container appBar(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        gradient: LinearGradient(
          colors: MyColors.lg,
        ),
      ),
      height: 152,
      child: SafeArea(
        bottom: false,
        child: Stack(
          children: [
            Container(
              height: 50,
              child: Row(
                children: [
                  GestureDetector(
                    onTap: () {
                      setState(() {
                        sIndex = 0;
                        controller.requestRefresh();
                      });
                    },
                    child: Text(
                      '货帮',
                      style: TextStyle(
                          color: Colors.white,
                          fontSize: sIndex == 0 ? 16 : 15,
                          fontWeight: sIndex == 0
                              ? FontWeight.bold
                              : FontWeight.normal),
                    ),
                  ),
                  Container(
                    width: 56,
                  ),
                  GestureDetector(
                    onTap: () {
                      setState(() {
                        sIndex = 1;
                        controller.requestRefresh();
                      });
                    },
                    child: Text(
                      '关注',
                      style: TextStyle(
                          color: Colors.white,
                          fontSize: sIndex == 1 ? 16 : 15,
                          fontWeight: sIndex == 1
                              ? FontWeight.bold
                              : FontWeight.normal),
                    ),
                  ),
                ],
                mainAxisAlignment: MainAxisAlignment.center,
              ),
              alignment: Alignment.center,
            ),
            Row(
              children: [
                GestureDetector(
                  onTap: (){
                    MyTools().toPage(context, QueryGangPage(), (then){});
                  },
                  behavior: HitTestBehavior.translucent,
                  child: Container(
                    child: SvgPicture.asset(
                      'images/svg/搜索.svg',
                      color: Colors.white,
                    ),
                    width: 50,
                    height: 50,
                    padding: EdgeInsets.all(15),
                  ),
                ),
                Container(
                  height: 50,
                  child: PopupMenuButton(
                    itemBuilder: (BuildContext context) {
                      return popItems;
                    },
                    onSelected: (v) {
                      if (v == '加入货帮') {
                        MyTools().toPage(context, JoinTheGangPage(), (then) {
                          controller.requestRefresh();
                        });
                      } else if (v == '创建货帮') {
                        MyTools().toPage(context, CreateAGangPage(), (then) {
                          controller.requestRefresh();
                        });
                      }
                    },
                    child: Container(
                      padding: EdgeInsets.all(8),
                      margin: EdgeInsets.only(right: 6),
                      child: SvgPicture.asset('images/svg/添加.svg'),
                    ),
                  ),
                  alignment: Alignment.centerRight,
                ),
              ],
              mainAxisAlignment: MainAxisAlignment.end,
            )
          ],
          alignment: Alignment.topCenter,
        ),
      ),
      alignment: Alignment.topCenter,
    );
  }

  Widget getGangItem(MyShopBeanDataData data) {
    if (data.shopPic == null) {
      return GestureDetector(
        onTap: () {
          MyTools().toPage(context, ApplicationPage(), (then) {
            controller.requestRefresh();
          });
        },
        behavior: HitTestBehavior.translucent,
        child: Container(
          height: 73,
          child: Column(
            children: [
              Expanded(
                child: Row(
                  children: [
                    Container(
                      margin: EdgeInsets.only(left: 14, right: 14),
                      child: SvgPicture.asset(
                        'images/svg/入帮申请.svg',
                        height: 45,
                        width: 45,
                      ),
                    ),
                    Expanded(
                      child: Container(
                        height: 45,
                        padding: EdgeInsets.only(right: 14),
                        child: Column(
                          children: [
                            Row(
                              children: [
                                Expanded(
                                    child: Text(
                                  '入帮申请',
                                  style: TextStyle(
                                      color: MyColors.c333333, fontSize: 15),
                                )),
                                Text(
                                  '',
                                  style: TextStyle(
                                      color: MyColors.c888888, fontSize: 12),
                                ),
                              ],
                            ),
                            Row(
                              children: [
                                Expanded(
                                  child: Text(
                                    applications.length == 0
                                        ? '暂无申请'
                                        : '你有新的申请消息',
                                    style: TextStyle(
                                        color: MyColors.c888888, fontSize: 12),
                                  ),
                                ),
                                Visibility(
                                  visible: applications.length != 0,
                                  child: Container(
                                    decoration: BoxDecoration(
                                        color: MyColors.cFF4233,
                                        borderRadius: BorderRadius.all(
                                            Radius.circular(8))),
                                    constraints: BoxConstraints(minWidth: 16),
                                    height: 16,
                                    padding: EdgeInsets.only(left: 5, right: 5),
                                    child: Text(
                                      '${applications.length}',
                                      style: TextStyle(
                                          color: Colors.white, fontSize: 8),
                                    ),
                                    alignment: Alignment.center,
                                  ),
                                )
                              ],
                            )
                          ],
                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        ),
                      ),
                    )
                  ],
                ),
              ),
              Container(
                margin: EdgeInsets.only(left: 73, right: 14),
                height: 0.5,
                color: MyColors.cE7E7E7,
              )
            ],
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
          ),
        ),
      );
    } else {
      return GestureDetector(
        onTap: () {
          MyTools().toPage(context, GangInPage(data, null), (then) {
            if (then == '删除货帮') {
              controller.requestRefresh();
            } else if (needRE) {
              needRE = false;
              controller.requestRefresh();
            }
          });
        },
        behavior: HitTestBehavior.translucent,
        child: Container(
          height: 73,
          child: Column(
            children: [
              Expanded(
                child: Row(
                  children: [
                    Container(
                      margin: EdgeInsets.only(left: 14, right: 14),
                      child: ClipRRect(
                        child: MyViews().netImg(imgURL(data.shopPic), 45, 45,
                            placeholder: 'images/svg/占位图.svg'),
                        borderRadius: BorderRadius.all(Radius.circular(4)),
                      ),
                    ),
                    Expanded(
                      child: Container(
                        height: 45,
                        padding: EdgeInsets.only(right: 14),
                        child: Column(
                          children: [
                            Row(
                              children: [
                                Expanded(
                                    child: Text(
                                  data.shopName,
                                  style: TextStyle(
                                      color: MyColors.c333333, fontSize: 15),
                                )),
                                Visibility(
                                  child: Container(
                                    decoration: BoxDecoration(
                                        color: MyColors.cFFCD00,
                                        borderRadius: BorderRadius.only(
                                            topLeft: Radius.circular(6),
                                            bottomRight: Radius.circular(6))),
                                    height: 18,
                                    width: 30,
                                    child: Text(
                                      '自建',
                                      style: TextStyle(
                                          color: Colors.white, fontSize: 10),
                                    ),
                                    alignment: Alignment.center,
                                    padding: EdgeInsets.only(bottom: 2),
                                  ),
                                  visible: data.ownerUid == MyCookie().getUID(),
                                ),
                              ],
                            ),
                            Row(
                              children: [
                                Expanded(
                                  child: Text(
                                    'ID：${data.shopUid}',
                                    style: TextStyle(
                                        color: MyColors.c888888, fontSize: 12),
                                  ),
                                ),
                                Visibility(
                                  child: Container(
                                    decoration: BoxDecoration(
                                        color: MyColors.cFF4233,
                                        borderRadius: BorderRadius.only(
                                            topLeft: Radius.circular(6),
                                            bottomRight: Radius.circular(6))),
                                    height: 18,
                                    width: 30,
                                    child: Text(
                                      '欠费',
                                      style: TextStyle(
                                          color: Colors.white, fontSize: 10),
                                    ),
                                    alignment: Alignment.center,
                                    padding: EdgeInsets.only(bottom: 2),
                                  ),
                                  visible: data.shopState == shopStateArrearage,
                                ),
                              ],
                            )
                          ],
                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        ),
                      ),
                    )
                  ],
                ),
              ),
              Container(
                margin: EdgeInsets.only(left: 73, right: 14),
                height: 0.5,
                color: MyColors.cE7E7E7,
              )
            ],
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
          ),
        ),
      );
    }
  }

  @override
  // TODO: implement wantKeepAlive
  bool get wantKeepAlive => true;

  queryGang() {
    var dJson;
    var conditions1 = [
      "role!=$shopUserOwner",
      "user_uid==${MyCookie().getUID()}",
      "review_state==1"
    ];
    var conditions2 = [
      "role==$shopUserOwner",
      "user_uid==${MyCookie().getUID()}"
    ];
    if(sIndex == 0){
      conditions1.add('private_shop==true');
      dJson = {
        "key": "shop_user",
        "filters": {
          "or": true,
          "conditions": conditions1,
          "filters": [
            {"conditions": conditions2}
          ]
        },
        "dims": shopUserDims,
        "paging": [page, 1000],
        "order_by": ["shop_name,DESC"]
      };
    }else{
      conditions1.add('private_shop==false');
      dJson = {
        "key": "shop_user",
        "filters": {
          "conditions": conditions1
        },
        "dims": shopUserDims,
        "paging": [page, 1000],
        "order_by": ["shop_name,DESC"]
      };
    }


    // if (sIndex == 1) {
    //   conditions1.add('collected == true');
    //   conditions2.add('collected == true');
    // }
    MyDio().query(dJson, (response, hasError) {
      if (!hasError) {
        MyShopBeanEntity entity =
            MyShopBeanEntity().fromJson(json.decode(response.data.toString()));
        if (page == 1) {
          data.clear();
        }

        data.addAll(entity.data.data);
        // data.sort((a, b) {
        //   String aT = PinyinHelper.getShortPinyin(a.shopName);
        //   String bT = PinyinHelper.getShortPinyin(b.shopName);
        //   return aT.compareTo(bT);
        // });
        _handleList(data);
        setState(() {
          endRe(controller);
        });
      }
    }, (error) {});
  }

  void _handleList(List<MyShopBeanDataData> list) {

    List<MyShopBeanDataData> selfBuilt = [];
    list.forEach((element) {
      if(element.ownerUid==MyCookie().getUID()){
        selfBuilt.add(element);
      }
    });
    selfBuilt.forEach((element) {
      list.removeWhere((data) => data.id==element.id);
    });
    if (list.isEmpty) return;
    for (int i = 0, length = list.length; i < length; i++) {
      String pinyin = PinyinHelper.getPinyinE(list[i].shopName);
      String tag = pinyin.substring(0, 1).toUpperCase();
      if (RegExp('[A-Z]').hasMatch(tag)) {
        list[i].tagIndex = tag;
      } else {
        list[i].tagIndex = '#';
      }
    }
    // A-Z sort.
    SuspensionUtil.sortListBySuspensionTag(list);
    data.insertAll(0, selfBuilt);
    if (applications.isNotEmpty) {
      MyShopBeanDataData shopB = MyShopBeanDataData();
      shopB.shopName = '★';
      // add hotCityList.

      data.insert(0, shopB);
    }

    // show sus tag.
    SuspensionUtil.setShowSuspensionStatus(data);

    setState(() {});
  }

  enquiryApplication() {
    MyDio().query({
      "key": "shop_user",
      "filters": {
        "conditions": ["owner_uid==${MyCookie().getUID()}", "review_state==0"]
      },
      "dims": shopUserDims,
      "paging": [1, 2000]
    }, (response, hasError) {
      if (!hasError) {
        MyShopBeanEntity entity =
            MyShopBeanEntity().fromJson(json.decode(response.data.toString()));
        applications.clear();
        applications.addAll(entity.data.data);
      }
      setState(() {
        endRe(controller);
      });
    }, (error) {});
  }

  void onRefresh() {
    page = 1;
    queryGang();
    enquiryApplication();
  }

  void onLoading() {
    page++;
    queryGang();
    enquiryApplication();
  }
}