import 'dart:io';

import 'package:common_utils/common_utils.dart';
import 'package:flutter/material.dart';
import 'package:flutter_easyrefresh/easy_refresh.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:one_key/constant/state.dart';
import 'package:one_key/pages/coupon/coupon_item.dart';
import 'package:one_key/pages/coupon/coupon_item_f.dart';
import 'package:one_key/provider/SmsModel.dart';
import 'package:one_key/provider/coupon_provider.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/res/colors.dart';
import 'package:one_key/utils/dialog_util.dart';
import 'package:one_key/utils/event_bus.dart';
import 'package:one_key/route/navigator_util.dart';
import 'package:one_key/utils/utils.dart';
import 'package:one_key/widgets/h_empty_view.dart';
import 'package:one_key/widgets/page_exception.dart';
import 'package:one_key/widgets/round_button.dart';
import 'package:one_key/widgets/system_app_bar.dart';
import 'package:one_key/widgets/v_empty_view.dart';
import 'package:provider/provider.dart';
// import 'package:sendsms/sendsms.dart';
// import 'package:sendsms/sendsms.dart';
import 'package:flutter_sms/flutter_sms.dart';

import '../../../../models/coupon_model.dart';
import '../../../../utils/screen_util.dart';

/**
 * 支付返券选择页面
 */
class PaymentGiftSelectPage extends StatefulWidget {
  final String? type;
  final List<CouponSunModel>? couponList;
  final String? from;
  final String? end;

  final bool mulSelect;
  PaymentGiftSelectPage(
      {Key? key,
      this.type,
      this.couponList,
      this.from,
      this.end,
      this.mulSelect = true})
      : super(key: key);

  @override
  _PaymentGiftSelectPageState createState() => _PaymentGiftSelectPageState();
}

class _PaymentGiftSelectPageState extends State<PaymentGiftSelectPage> {
  EasyRefreshController _controller = EasyRefreshController();
  late CouponProvider couponProvider;

  List<CouponSunModel> selectDataList = [];
  bool all = false;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      // if (!couponProvider.hasModify) {
      _couponNetworkData();
      // } else {
      //   couponProvider.pageStateSelect = PageState.Success;
      //   // couponProvider.notifyListeners();
      // }
    });
  }

  @override
  void dispose() {
    super.dispose();
  }

  ///获取优惠券列表数据(status == 1)

  _couponNetworkData({bool isShowLoading = true}) async {
    Map<String, String> params = {
      "uid": Provider.of<UserModel>(context, listen: false).user!.openid!,
      "is_type": widget.type!
    };
    params['status'] = '1';

    await couponProvider.getCustomerSelectActivityMarking(context, params,
        isShowLoading: isShowLoading);

    // if (DateUtil.getDateTime(endDate)
    //      List<String> start = fromDate.split('-');

    // String from = '${start[0]}' +
    //     '-' +
    //     Utils.addZeroNumber(int.parse(start[1])) +
    //     '-' +
    //     Utils.addZeroNumber(int.parse(start[2])) +
    //     ' 00:00:00';
    // List<String> endList = endDate.split('-');
    // String end = '${endList[0]}' +
    //     '-' +
    //     Utils.addZeroNumber(int.parse(endList[1])) +
    //     '-' +
    //     Utils.addZeroNumber(int.parse(endList[2])) +
    //     ' 23:59:59';

    // Map<String, String?> params = {
    //   'sellerid': Provider.of<UserModel>(context, listen: false).user!.sellerid,
    //   'stime': '${(DateUtil.getDateMsByTimeStr(from)! / 1000).floor()}',
    //   'etime': '${(DateUtil.getDateMsByTimeStr(end)! / 1000).floor()}',
    // };
    //                       .compareTo(DateUtil.getDateTime(fromDate)) <
    //                   0) {
    //                 Utils.showToast('结束日期不能早于开始日期');
    //                 return;
    //               }

    // outerloop:
    List<CouponSunModel> temp = [];
    for (int i = 0; i < couponProvider.couponListSelect!.length; i++) {
      CouponSunModel data = couponProvider.couponListSelect![i];
      // data.stime
      // data.etime
      //重组数据
      if (data.expirationDate?.validForever == '1') {
        //长期有效
        temp.add(couponProvider.couponListSelect![i]);
      } else {
        // 券开始早于活动开始 && 券结束大于活动结束
        DateTime dateTimes = DateTime.fromMillisecondsSinceEpoch(
            int.parse(data.stime.toString()) * 1000);
        String fromC =
            DateUtil.formatDate(dateTimes, format: DateFormats.y_mo_d);

        DateTime dateTimeseEnd = DateTime.fromMillisecondsSinceEpoch(
            int.parse(data.etime.toString()) * 1000);
        String endC =
            DateUtil.formatDate(dateTimeseEnd, format: DateFormats.y_mo_d);
        if (DateUtil.getDateTime(fromC)
                    .compareTo(DateUtil.getDateTime(widget.from!)) <=
                0 &&
            DateUtil.getDateTime(widget.end!)
                    .compareTo(DateUtil.getDateTime(endC)) <=
                0) {
          temp.add(couponProvider.couponListSelect![i]);
        }
      }
    }
    couponProvider.couponListSelect = temp;
    if (couponProvider.couponListSelect!.length == 0) {
      couponProvider.pageStateSelect = PageState.Empty;
      setState(() {});
    } else {
      for (var item in couponProvider.couponListSelect!) {
        for (var itemselect in widget.couponList!) {
          if (itemselect.id == item.id) {
            item.isCheck = true;
            // item.number = itemselect.number;
            // item.numberC.text = item.number.toString();
            selectDataList.add(item);
            // break outerloop;
          }
        }
      }
      if (selectDataList.length == couponProvider.couponListSelect!.length) {
        all = true;
      }

      setState(() {});
    }
  }

  @override
  Widget build(BuildContext context) {
    couponProvider = Provider.of<CouponProvider>(context, listen: true);
    return Scaffold(
        backgroundColor: MyColours.color_ffffff,
        appBar: SystemAppBar(
          '选择优惠券',
          onTap: () {
            if (Navigator.canPop(context)) {
              Navigator.pop(context);
            }
          },
        ),
        body: Column(
          children: [
            Expanded(child: Consumer<CouponProvider>(
              builder: (context, model, _) {
                if (model.pageStateSelect != PageState.Success) {
                  return ExceptionPage(
                    pageState: model.pageStateSelect,
                    callback: () async {
                      if (model.pageStateSelect == PageState.Empty) {
                        //去创建免费优惠券
                        bool? needRefresh;

                        needRefresh = await NavigatorUtil.goCouponEditPage(
                            context,
                            from: widget.from,
                            end: widget.end,
                            isMine: true);

                        print(needRefresh);
                        if (needRefresh != null && needRefresh) {
                          //刷新页面数据
                          // _controller.callRefresh();
                          _couponNetworkData();
                        }
                      } else {
                        _couponNetworkData();
                      }

                      // offset = 0;
                      // getMessage(showLoading: true);
                    },
                    emptyMsg: "暂时没有可用的优惠券哦，",
                    emptyImg: "empty_search",
                    showMsg: "加载中，请稍候...",
                    showText: '去创建',
                  );
                } else {
                  return EasyRefresh.custom(
                    controller: _controller,
                    shrinkWrap: true,
                    slivers: [
                      SliverList(
                        delegate: SliverChildBuilderDelegate(
                            (BuildContext context, int index) {
                          return VEmptyView(40);
                        }, childCount: 1),
                      ),
                      SliverList(
                        delegate: SliverChildBuilderDelegate(
                            (BuildContext context, int index) {
                          CouponSunModel sunModel =
                              couponProvider.couponListSelect![index];
                          return InkWell(
                              onTap: () {
                                if (sunModel.isType != '3') {
                                  //改这里 ******8
                                  if (widget.mulSelect) {
                                    sunModel.isCheck = !sunModel.isCheck;
                                    if (sunModel.isCheck) {
                                      selectDataList.add(sunModel);
                                    } else {
                                      selectDataList.remove(sunModel);
                                    }
                                    if (couponProvider.couponListSelect!
                                        .every((element) => element.isCheck)) {
                                      all = true;
                                    } else {
                                      all = false;
                                    }
                                  } else {
                                    couponProvider.couponListSelect!
                                        .forEach((element) {
                                      element.isCheck = false;
                                    });
                                    selectDataList = [];
                                    selectDataList.add(sunModel);
                                    sunModel.isCheck = true;
                                  }

                                  setState(() {});
                                }
                              },
                              // child: Row(
                              //   children: [
                              //     HEmptyView(30),
                              //     !widget.hasModify
                              //         ? Checkbox(
                              //             value: couponProvider
                              //                 .couponListSelect[index].isCheck,
                              //             checkColor: MyColours.color_ffffff,
                              //             activeColor: MyColours.app_main,
                              //             onChanged: (bool value) {},
                              //           )
                              //         : Container(),
                              // Image.asset(
                              //     couponProvider.listData[index]['checked']
                              //         ? 'assets/select.png'
                              //         : 'assets/unselect.png',
                              //     width: ScreenUtil().setWidth(44)),
                              child: CouponItemF(
                                  from: 'select',
                                  showCheck: true,
                                  radio: widget.mulSelect,
                                  needNum: false,
                                  couponSonModel:
                                      couponProvider.couponListSelect![index],
                                  onPressed: () {
                                    NavigatorUtil.goCouponDetailPage(context,
                                        couponProvider.couponListSelect![index],
                                        idStr: couponProvider
                                            .couponListSelect![index].id);
                                  },
                                  onPressedSelect: () {
                                    // bool old = couponProvider
                                    //     .couponListSelect[index].isCheck;
                                    //改这里 ******8
                                    if (widget.mulSelect) {
                                      couponProvider.couponListSelect![index]
                                              .isCheck =
                                          !couponProvider
                                              .couponListSelect![index].isCheck;
                                      if (couponProvider
                                          .couponListSelect![index].isCheck) {
                                        selectDataList.add(couponProvider
                                            .couponListSelect![index]);
                                      } else {
                                        selectDataList.remove(couponProvider
                                            .couponListSelect![index]);
                                      }
                                      if (couponProvider.couponListSelect!
                                          .every(
                                              (element) => element.isCheck)) {
                                        all = true;
                                      } else {
                                        all = false;
                                      }
                                    } else {
                                      couponProvider.couponListSelect!
                                          .forEach((element) {
                                        element.isCheck = false;
                                      });
                                      selectDataList = [];
                                      selectDataList.add(couponProvider
                                          .couponListSelect![index]);
                                      couponProvider.couponListSelect![index]
                                          .isCheck = true;
                                    }
                                    setState(() {});
                                  }));
                        }, childCount: couponProvider.couponListSelect!.length),
                      )
                    ],
                    // onRefresh: () async {
                    //   // offset = 0;
                    //   // getMessage(showLoading: false);
                    // },
                    // onLoad: () async {
                    //   // offset++;
                    //   // getMessage(showLoading: false);
                    // },
                  );
                }
              },
            )),
            VEmptyView(20),
            if (couponProvider.pageStateSelect == PageState.Success)
              widget.mulSelect
                  ? Container(
                      padding: EdgeInsets.only(
                          left: w(20), top: w(12), right: w(20), bottom: w(25)),
                      child: Row(
                        crossAxisAlignment: CrossAxisAlignment.center,
                        children: [
                          InkWell(
                              onTap: () {
                                all = !all;
                                if (all) {
                                  selectDataList = [];
                                  for (var item
                                      in couponProvider.couponListSelect!) {
                                    item.isCheck = true;
                                    selectDataList.add(item);
                                  }
                                } else {
                                  selectDataList = [];
                                  for (var item
                                      in couponProvider.couponListSelect!) {
                                    item.isCheck = false;
                                  }
                                }
                                setState(() {});
                              },
                              child: Row(
                                children: [
                                  Image.asset(
                                    Utils.getImgPath(
                                        all ? 'c_mul_select' : 'c_not_edit'),
                                    width: ScreenUtil().setWidth(40),
                                  ),
                                  HEmptyView(10),
                                  Text(
                                    '全选',
                                    style: TextStyle(
                                        fontSize: ScreenUtil().setWidth(32),
                                        fontWeight: FontWeight.bold,
                                        color: MyColours.color_000000),
                                  ),
                                  HEmptyView(20),
                                ],
                              )),
                          Expanded(
                              child: RoundButton(
                            onPressed: () async {
                              //如果是免费的优惠券，有个数的，数量为0的时候提示
                              bool can = true;
                              for (int i = 0; i < selectDataList.length; i++) {
                                CouponSunModel element = selectDataList[i];
                                if (element.isType == '3' &&
                                    element.isCheck &&
                                    element.number == 0) {
                                  Utils.showToast('请输入【${element.aname}】的数量');
                                  can = false;
                                  break;
                                }
                              }
                              if (can) {
                                Map temp = {
                                  'coupon': selectDataList,
                                };
                                if (Navigator.canPop(context)) {
                                  Navigator.pop(context, temp);
                                }
                              }
                            },
                            text: '确定选择${selectDataList.length}个优惠券',
                            fontSize: 34,
                            isBold: false,
                            height: ScreenUtil().setWidth(80),
                            // width: double.infinity,
                            radius: ScreenUtil().setWidth(10),
                          )),
                        ],
                      ))
                  : Container(
                      padding: EdgeInsets.only(
                          left: w(20), top: w(12), right: w(20), bottom: w(25)),
                      child: RoundButton(
                        onPressed: () async {
                          Map temp = {
                            'coupon': selectDataList,
                          };
                          if (Navigator.canPop(context)) {
                            Navigator.pop(context, temp);
                          }
                        },
                        text: '确定',
                        fontSize: 34,
                        isBold: false,
                        height: ScreenUtil().setWidth(80),
                        width: double.infinity,
                        radius: ScreenUtil().setWidth(10),
                      ))
          ],
        ));
  }
}