import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:one_key/models/area.dart';
import 'package:one_key/models/notebook.dart';
import 'package:one_key/models/tableOuter.dart';
import 'package:one_key/provider/notebook_model.dart';
import 'package:one_key/provider/select_table_model.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/res/colors.dart';
import 'package:one_key/utils/utils.dart';
import 'package:one_key/widgets/app_bar.dart';
import 'package:one_key/widgets/area_item.dart';
import 'package:one_key/widgets/common_button.dart';
import 'package:one_key/widgets/table_item.dart';
import 'package:one_key/models/table.dart' as t;
import 'package:provider/provider.dart';

class SelectTablePage extends StatefulWidget{

  final String rid;//预订id
  final DateTime dateTime;//日期
  final String ddate_slot;//时段

  SelectTablePage(this.rid,this.dateTime,this.ddate_slot);

  @override
  State<StatefulWidget> createState() {
    // TODO: implement createState
    return new SelectTablePageState();
  }
}

class SelectTablePageState extends State<SelectTablePage>{

  List<Area> areas=[];//区域列表
  List<t.Table> selectTables=[];//选择的桌位

  List<TableOuter> tableOuterList=[];//区域-桌位列表

  Map<String,List<t.Table>> areaTableMap={};//区域-桌位Map

  SelectTableModel selectTableModel=new SelectTableModel();

  Map<String,Notebook> tableMap={};//记录已预订桌位对应的订单

  String currentArea;//当前选中区域

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_){
      getTableList();
    });
  }

  //获取桌位列表
  getTableList() async {
    UserModel userModel=Provider.of<UserModel>(context,listen:false);
    Map<String,String> params={
      "sellerid":userModel.user.sellerid
    };
    tableOuterList= await selectTableModel.getTableList(context, params);
    _getReserveList(userModel.user.sellerid);
  }

  //获取已预订列表
  _getReserveList(String sid) async {
    NoteBookModel model = new NoteBookModel();
    Map<String, String> params = {
      "sid": sid,
      "rdate": _getRdate(),
      "ddate_solt": widget.ddate_slot,
      "y": "200",
      "x": "1",
      "keywords": "",
      "sort": "1"
    };
    List<Notebook> noteBooks=await model.getReserveList(context, params);
    for(Notebook notebook in noteBooks){
      if(notebook.tid.isEmpty)continue;
      if(notebook.status=="1"||notebook.status=="2"||notebook.status=="5"){//已预订，用餐中，已安排
        List<String> tids=notebook.tid.split(",");
        for(String tid in tids){
          tableMap["$tid"]=notebook;
        }
    }
    }
    initData();
  }

  //初始桌位数据
  initData(){
    for(TableOuter outer in tableOuterList){
      int count=0;
      for(t.Table table in outer.list){
        if(table.tablestatus=="0"){//没有用餐中
          if(tableMap["${table.id}"]!=null){
            Notebook notebook=tableMap["${table.id}"];
            table.sign=notebook.status;
            table.notebookId=notebook.id;
            table.reserver=notebook.rnameStr;
          }else{
            table.sign="";
            table.notebookId="";
            if(table.enable=="1"){
              count++;
            }
          }
        }else{
          table.sign="2";
          table.notebookId="";
        }
      }
      areaTableMap["${outer.name}"]=outer.list;
      Area area=Area();
      area.name=outer.name;
      area.count=count;
      areas.add(area);
    }
    currentArea=areaTableMap.keys.first;
    setState(() {
    });
  }

  //获取一天开始-结束时间字符串
  String _getRdate() {
    //一天开始时间
    double startDay = (DateTime.parse((widget.dateTime.year.toString() +
        "-" +
        Utils.addZeroNumber(widget.dateTime.month) +
        "-" +
        Utils.addZeroNumber(widget.dateTime.day) +
        " 00:00:00"))
        .millisecondsSinceEpoch) /
        1000;
    //一天结束时间
    double endDay = (DateTime.parse((widget.dateTime.year.toString() +
        "-" +
        Utils.addZeroNumber(widget.dateTime.month) +
        "-" +
        Utils.addZeroNumber(widget.dateTime.day) +
        " 23:59:59"))
        .millisecondsSinceEpoch) /
        1000;
    return startDay.floor().toString() + "-" + endDay.floor().toString();
  }

  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return SafeArea(
      child: areaTableMap.isEmpty?Container(
        width: double.infinity,
        height: double.infinity,
        color: MyColours.color_ffffff,
      ):Column(
        children: <Widget>[
          MyAppBar(
            "选择桌位",
            showBack: true,
          ),
          Expanded(
            child: Container(
              color: MyColours.color_ffffff,
              child: Row(
                children: <Widget>[
                  Container(
                    width: ScreenUtil().setWidth(189),
                    height: double.infinity,
                    color: MyColours.color_f1f1f1,
                    child: ListView.builder(itemBuilder: (context,index){
                      return AreaItem(areas[index],currentArea,(area){
                        setState(() {
                          currentArea=(area as Area).name;
                        });
                      });
                    },itemExtent: ScreenUtil().setHeight(207),itemCount: areas.length,),
                  ),
                  Expanded(
                    child: Padding(padding: EdgeInsets.symmetric(vertical: ScreenUtil().setHeight(10),horizontal: ScreenUtil().setWidth(9)),child: GridView.builder(gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3,childAspectRatio: 0.8),itemBuilder: (context,index){
                      return TableItem(areaTableMap[currentArea][index],onSelected:(table){
                        if((table as t.Table).selected){
                          selectTables.add(table);
                        }else{
                          selectTables.removeWhere((t)=>t.id==table.id);
                        }
                      },canSelected: true,);
                    },itemCount: areaTableMap[currentArea].length,),),
                  )
                ],
              ),
            ),
          ),
          Container(
            width: double.infinity,
            height: ScreenUtil().setHeight(100),
            alignment: Alignment.center,
            decoration: BoxDecoration(
              color: MyColours.color_ffffff,
              border: Border(top: BorderSide(color: MyColours.color_bfbfbf,width: ScreenUtil().setHeight(1)))
            ),
            child: CommonButton(
              content: "确定",
              width: 600,
              height: 76,
              fontSize: 34,
              state: 1,
              onPress: (){
                if(selectTables.length>0){
                  String tid="";
                  for(t.Table table in selectTables){
                    tid+=table.id+",";
                  }
                  tid=tid.substring(0,tid.length-1);
                  Navigator.of(context).pop(tid);
                }
              },
            )
          )
        ],
      ),
    );
  }
}