import { Component, OnInit, ViewEncapsulation, Input, Output, ElementRef, 
  NgZone, EventEmitter, ChangeDetectorRef,OnChanges,ContentChild,TemplateRef} from '@angular/core';
import { AjaxSetting, AceTableService, CBparams } from './ace-table.service'
import * as $ from 'jquery'

interface DataInfo {
  page: number;
  totalPage?: number;
  total?: number;
  startId?: number;
  endId?: number;
}

interface ModalState {
  show: boolean;
  text?: string;
}

interface ShowTr {
  el: any;
  show: boolean;
}

@Component({
  selector: 'ace-table',
  templateUrl: './ace-table.component.html',
  styleUrls: ['./ace-table.component.scss'],
  encapsulation: ViewEncapsulation.None,
  providers: [AceTableService],
})
export class AceTableComponent implements OnInit {
  @ContentChild(TemplateRef) template;
  @Input() DEGUGGER:boolean = false;
  @Input() tbTitle;      //表格标题
  _dataSource: Array<object> = [];//遍历的数据
  @Input() set dataSource(val: Array<object>) {
    this._dataSource = val;
    this.init();
  }
  get dataSource() {
    return this._dataSource
  }

  @Input() theadSource: Array<object> //表头数据
  @Input() widths: Array<number> = []; //默认宽度100;
  @Input() minWidth: number = 100;//最小宽度
  _tableHeight:number;
   @Input() get tableHeight():number{
    return this._tableHeight
  }
  set tableHeight(val){
    this._tableHeight = val;
    if(this.tableEle){
      this.styInit()
    }
  }
  // @Input() rowNumber: number = 10;   //一页的函数，默认10
  @Input() multipleChoice: boolean = true; //是否可以多选
  @Input() loading: boolean = false;   //加载动画
  @Input() dataInf: DataInfo = {     //数据的相关信息
    page: 1,
    totalPage: 1,
    total: 1,
    startId: 0,
    endId: 0
  };
  @Input() modalState: ModalState = { //modal框的设置
    show: false,
    text: "初次打开页面不加载数据，请组合条件进行搜索数据..."
  };
  @Input() operateState: boolean = false;  //控制开关状态
  @Input() changeState: boolean = false;  //操作状态
  @Input() paginNum: number = 5;  //翻页器显示的数量

  @Output() onSelect = new EventEmitter();  //选中了某一行触发的事件
  @Output() onChangeRows = new EventEmitter();  //改变了每页行数的事件
  @Output() onChangePage = new EventEmitter();  //翻页
  @Output() onReflresh = new EventEmitter();   //刷新单项

  @Output() onChangeInfomation = new EventEmitter();
  @Output() onDelInfomation = new EventEmitter();
  @Output() onAjaxOver = new EventEmitter();

  private wrapEle: any;       //容器
  private tableEle: any;      //表格区
  private theadEle: any;      //头部
  public theadSty: any;        //头部的样式
  public thOffsetLeft: number = 0; //头部偏移量
  private contentEle: any;      //内容区
  private moveBlock: any;     //拖动的模型
  private lineEle: any;       //标志线
  public wrapWidth: number;  //容器宽度
  private tableWidth: number;      //表格区宽度
  private colsWidth: Array<number> = []; //每一列的实际宽度
  private movedCol: number | null;   //可以移动的列的下标
  private moveStarX: number | null = null;  //初始位置
  private moveCurrX: number | null = null;  //最新的位置
  private colSetVals: Array<number> = [];  //用户设置的固定宽度，包括拖动，固定宽度
  private setColsTotal: number;   //设置的值的固定宽度
  private tdpadding: number;     //td,td padding值
  private closeStatus: boolean = false; //收起
  private checkRow: object = {};   //选中的行
  private selectAll: boolean = false;   //选中的行
  private windowResize: any;     //window.onresize 绑定的函数
  private mouseUpFunction: any;     //window.mouseup 绑定的函数
  private inPutEle: any;      //底部页数输入框
  public inputValue: any = 1;     //底部页数输入框 输入的值
  public inputTextSty: object = {  //输入框样式
    "z-index": 5
  };
  private operaRefresh: Array<boolean>;  //正在刷新的行的集合

  private operaShowDetail: Array<ShowTr> = [];  //正在展开的行的集合
  @Input() rowNumber: number = 30;   //一页的函数，默认30
  _selectOption:Array<number>=[
    10,20,30,50,100
  ];
  @Input() set selectOption(arr:Array<number>){
    this._selectOption = arr;
  }
  get selectOption(){
    return this._selectOption
  }
  constructor(
    private el: ElementRef,
    private zone: NgZone,
    public service: AceTableService,
    public cd: ChangeDetectorRef
  ) {
    this.cd.detach();

  }

  ngOnChanges() {
    this.do();
    setTimeout(() => {
      this.tableResize();
    });
    this.inputValue = this.dataInf.page;
  }

  ngOnInit() {
    if (!this.theadSource) {
      throw new Error('theadSource is undefined.theadSource is required.')
    };
    this.colsWidth = [];
    Promise.resolve().then(() => {
      this.init();
      this.getElementWidth();

      if ("colsWidth" in this) {
        this.setUserSettingWidth() ? this.styInit() : "";
      } else {
        this.styInit()
      }

    }).then(() => {
      //绑定事件
      let timeout;
      this.windowResize = function () {
        clearTimeout(timeout);
        setTimeout(() => {
          this.zone.run(() => {
            this.tableResize();
          });
        }, 200)
      };
      this.windowResize = this.windowResize.bind(this);
      window.addEventListener('resize', this.windowResize);

    }).then(() => {
      this.mouseUpFunction = this.mouseUp.bind(this);
      document.body.addEventListener('mouseup', this.mouseUpFunction);
    }).then(() => {
      if (this.ajaxUrl) {

        if (typeof this.setParamsFn != 'function') {
          throw 'settingParams must be function , it is used to setting http params';
        }
        this.modalState.show = true;
      }
    });



  }

  ngOnDestroy() {
    document.body.removeEventListener('mouseup', this.mouseUpFunction);
    window.removeEventListener('resize', this.windowResize);

  }

  do() {
    this.cd.detectChanges();
  }

  //获取关键节点
  init() {
    this.wrapEle = (<any>$(this.el.nativeElement)).find('.ace-wrap');
    this.tableEle = $(this.wrapEle).find('.ace-table-content');
    this.theadEle = (<any>$(this.el.nativeElement)).find('.ace-table-thead');
    this.contentEle = (<any>$(this.el.nativeElement)).find('.ace-table-list');
    this.moveBlock = (<any>$(this.el.nativeElement)).find('.ace-move-block');
    this.lineEle = (<any>$(this.el.nativeElement)).find('.ace-move-line');
    this.inPutEle = (<any>$(this.el.nativeElement)).find('.text-area-view').find('input');
    if (this.operateState) {
      this.operaRefresh = [];
      for (let i = 0; i < this.dataSource.length; i++) {
        this.operaRefresh.push(false);
      }
    };

  }

  //计算没设置固定宽度td的宽度
  styInit() {
    if ('tableHeight' in this) {
      //设置默认高度:
      $(this.tableEle).css({ height: this.tableHeight + 'px', overflow: "hidden" });

    }

    this.setColsTotal = this.colsWidth.reduce((total, next) => {
      return total + next;
    }, 0);
    //默认值minWidth不足以填满table
    var val;
    if (this.tableWidth > (this.setColsTotal + this.minWidth * (this.theadSource.length - this.colsWidth.length))) {
      //平均分配
      val = Math.floor((this.tableWidth - this.setColsTotal) / (this.theadSource.length - this.colsWidth.length));
    } else {
      //统一设置为this.minWidth
      val = this.minWidth
    }
    for (let i = this.colsWidth.length; i < this.theadSource.length; i++) {
      this.colsWidth[i] = val;
    }
  }

  //获取宽度,wrap 跟table，如果table大于wrap，需要添加滚动属性给wrap
  getElementWidth() {
    this.wrapWidth = $(this.wrapEle).width();
    this.tableWidth = $(this.tableEle).width() - 17;
    this.theadSty = { width: this.wrapWidth + "px" };

  }

  //设置用户自定义的宽度
  setUserSettingWidth() {

    //widths不够
    if (this.widths.length < this.theadSource.length) {

      this.widths.forEach((val, idx) => {
        this.colSetVals[idx] = val;
        this.colsWidth.push(val);
      })
      return true
    } else {
      //widths过多，不需要计算默认值
      this.widths.forEach((val, idx) => {
        if (idx > this.colsWidth.length) return
        val > this.minWidth ? this.colsWidth[idx] = val : this.colsWidth[idx] = this.minWidth;
      });
      return false
    }
  }



  //resize table
  tableResize() {
    if (!this.wrapEle) return

    this.getElementWidth();

    //没设置宽度的td计算
    var nosetArr = [];
    this.theadSource.forEach((val, idx) => {
      if (!this.colSetVals[idx]) {
        nosetArr.push(idx)
      }
    });
    let x = Math.floor((this.tableWidth - this.setColsTotal - (this.multipleChoice ? 50 : 0) - (this.operateState ? 200 : 0) - (this.changeState ? 200 : 0)) / nosetArr.length);
    x = x > this.minWidth ? x : this.minWidth;

    nosetArr.forEach((val) => {
      this.colsWidth[val] = x;
    });
    this.checkScroll();
  }

  //判断是否需要  横向滚动条  或者纵向滚动条
  checkScroll() {
    //纵向
    var scrollY = 'hidden', scrollX = 'hidden';
    if ('tableHeight' in this) {
      var h = $(this.contentEle).height();
      var contentH = $(this.theadEle).height() + h;

      if (contentH > this.tableHeight || h < 10) {
        scrollY = 'scroll'
        this.theadSty = { width: this.wrapWidth - 17 + "px" }
        $(this.contentEle).css('padding-right', 0);
      } else {
        $(this.contentEle).css('padding-right',0);
        this.theadSty = { width: this.wrapWidth + "px" }
      }
    }

    var total = this.colsWidth.reduce((pre, next) => {
      return pre + next;
    }, ((this.multipleChoice ? 50 : 0) + (this.operateState ? 200 : 0) + (this.changeState ? 200 : 0)));
    if (total > this.tableWidth) {
      scrollX = 'scroll';
    }
    $(this.tableEle).css({ overflowX: scrollX, overflowY: scrollY });
    this.do();
  }

  //计算th宽度
  getThSty(idx) {
    return "colsWidth" in this ? { width: this.colsWidth[idx] + "px" } : '';
  }

  // 收起表单
  close() {
    this.closeStatus = !this.closeStatus;
    if (this.closeStatus) {
      (<any>$(this.wrapEle)).slideUp();
    } else {
      (<any>$(this.wrapEle)).slideDown();
    }
    this.do();
  }



  //关闭表单时候的按钮动画
  closeIconSty() {
    // return this.closeStatus?{display:'none'}:{display:'block'};
    if (this.closeStatus) {
      return { transform: "rotate(180deg)" };
    } else {
      return { transform: "rotate(0)" };
    }
  }

  //获取key值
  getKeys(data: any) {
    var arr = [];
  
    this.theadSource.forEach((val: any, idx: number)=>{
      var tdData: any = {};
      if (typeof data[val.name] == 'object'&&data[val.name]!==null) {
        data[val.name].rowspan ? tdData.rowspan = data[val.name].rowspan : 1;
        data[val.name].slot ? tdData.slot = data[val.name].slot :false;
        if('value' in data[val.name]){
          tdData.text = data[val.name].value;
        }
        if('position' in data[val.name]){
          tdData.position = data[val.name].position;
        }
        arr.push(tdData);
      } else if (val.name in data) {

        tdData.text = data[val.name];
        arr.push(tdData);
      }else{
        if(this.DEGUGGER){
          arr.push("");
        }
      }
    });
    return arr;
  }

  //拖动横向滚动条
  tableScroll(e: any) {
    if (e.target.scrollLeft != -this.thOffsetLeft) {
      this.thOffsetLeft = -e.target.scrollLeft;
      this.do();
    }
    
  }

  //th拖动事件
  //1.只能在右边拖动
  //2.20px是触发的条件
  //3.鼠标变形
  //4.点击之后，隐藏标签出现，获取offsetX
  //5.隐藏标签有mouseon事件，竖条跟着走。
  //6.松开鼠标结束
  //7.判断能否移动到该位置（过小的问题）
  thMoving(e: any, idx) {
    if (this.colsWidth[idx] - e.offsetX < 20) {
      if($(e.target).css('cursor')!='e-resize'){
        $(e.target).css({ cursor: 'e-resize' });
        
      }
    } else {
      if($(e.target).css('cursor')!='default'){
        $(e.target).css({ cursor: 'default' });
        
      }
    }

  }

  //记录下移动的th的下标
  tdisClilked(e: any, idx) {
    if (this.colsWidth[idx] - e.offsetX < 20) {
      this.movedCol = idx;
      $(this.moveBlock).css('z-index', 10);
    }
  }

  mySetTimeout = null;
  //坐标线位置, 移动中
  moveBlockEvent(e: any) {
    var css:any = {
      transform:'translateX(' + e.offsetX + 'px)'
    }
    if($(this.lineEle).css('opacity') as any==0){
      css.opacity = 1;
      this.moveStarX = e.clientX;
    }
    this.moveCurrX = e.clientX;
    $(this.lineEle).css(css);


  }
  mouseUpSet=null;
  //松开鼠标
  mouseUp(e) {
    if(this.mouseUpSet) clearTimeout(this.mouseUpSet);
    this.mouseUpSet = setTimeout(()=>{
      
      if (this.lineEle[0].style.opacity == 1) {
        if (this.movedCol == null) return
        
        $(this.lineEle).css('opacity', 0);
        $(this.moveBlock).css('z-index', -1);
        //计算移动的距离
        let moveSize = this.moveCurrX - this.moveStarX;
        if (this.colsWidth[this.movedCol] + moveSize < this.minWidth) {
          this.colsWidth[this.movedCol] = this.minWidth;
        } else {
          this.colsWidth[this.movedCol] = this.colsWidth[this.movedCol] + moveSize;
        }
        this.colSetVals[this.movedCol] = this.colsWidth[this.movedCol];
  
        this.setColsTotal = this.colSetVals.reduce((pre, next) => {
          if (next) {
            return pre + next;
          } else {
            return pre;
          }
        })
        this.tableResize();
        this.moveCurrX = null;
        this.moveStarX = null;
        this.movedCol = null;
        this.do();
      }
    },30)
    
  }

  //选中一行
  onCheckRow(idx: number) {
    setTimeout(() => {
      var num = 0;
      for (var i in this.checkRow) {
        if (this.checkRow[i] == false) break;
        num++
      };
      this.emitSelect()
      this.selectAll = num == this.dataSource.length;
      this.do();
    })
    
  }

  //全选
  onSelectedAll() {
    setTimeout(() => {
      this.dataSource.forEach((val, idx) => {
        this.checkRow[idx] = this.selectAll
      })
      this.emitSelect();
      this.do();
    }, 30)
  }
  //选中删除指定行
  delRow(): void {
    for (var key in this.checkRow) {
      this.dataSource.splice((<any>key), 1)
    };
    this.checkRow = {};
    this.do();
  }
  //重置选中
  initCheckRow() {
    var arr = []
    for (var i in this.checkRow) {
      arr.push(i);
    }
    arr.forEach((val) => {
      delete this.checkRow[val]
    })
    this.selectAll = false;
    this.do();
  }

  //output 返回选中的数据
  emitSelect() {
    var arr = [];
    for (var i in this.checkRow) {
      if (this.checkRow[i]) {
        arr.push(this.dataSource[i])
      }
    }
    this.onSelect.emit(arr);
  }

  //改变每页行数
  onPageNumerChanged(e: any) {
    this.rowNumber = e.target.value;
    if (this.ajaxUrl) {
      this.sendAjax(1);
    }
    this.onChangeRows.emit(e.target.value);
    this.do();
  }

  //翻页 
  onToPage(page: any) {
    if (page == 1) {
      if (this.dataInf.page != 1) {
        if (this.ajaxUrl) {
          this.sendAjax(page);
        }

        this.onChangePage.emit(page);
      }
    } else if (page == this.dataInf.totalPage) {
      if (this.dataInf.page != this.dataInf.totalPage) {
        if (this.ajaxUrl) {
          this.sendAjax(page);
        }
        this.onChangePage.emit(page);
      }
    } else if (page > 1 && page < this.dataInf.totalPage) {
      if (this.ajaxUrl) {
        this.sendAjax(page);
      }
      this.onChangePage.emit(page)
    }
    this.do();
  }

  //计算显示的页数
  computPagination() {
    var paginNum = this.paginNum;
    var cPage = this.dataInf.page;
    var total = this.dataInf.totalPage;
    var result = [];
    if (total <= paginNum) {

      for (var i = 1; i <= total; i++) {
        result.push(i)
      }
    } else if (cPage <= (paginNum - 1) / 2) {
      for (var i = 1; i <= paginNum; i++) {
        result.push(i)
      };
    } else if (cPage + ((paginNum - 1) / 2) >= total) {

      for (var i = total; i > total - paginNum; i--) {
        result.unshift(i)
      }
    } else {

      for (var i = cPage - (paginNum - 1) / 2; i <= cPage + (paginNum - 1) / 2; i++) {
        result.push(i)
      }
    }
    return result;
  }

  //键盘输入 页数
  onInputPageNum() {
    this.inputTextSty["z-index"] = -1;
    Promise.resolve().then(() => {
      this.inPutEle.focus();
    })
  }
  //检查输入的值
  onCheckInputValue(e: any) {
    if (this.modalState.show) {
      e.preventDefault();
      return
    }
    var value = e.target.value;
    var pro = new Promise(function (resolve, reject) {
      resolve();
    });

    pro.then(() => {
      if (/^[0-9]+$/.test(value) == false) {
        throw new Error('输入的值无效')
      }
    }).then(() => {
      if (value >= 1 && value <= this.dataInf.totalPage) {
        this.inPutEle.blur();
        this.onToPage(value);
        this.inputTextSty["z-index"] = 5;
      } else {
        throw new Error('超出了页数范围')
      }
    }).catch(err => {
      this.modalState.show = true;
      this.modalState.text = err;
      setTimeout(() => {
        this.inputValue = this.dataInf.page;
        this.modalState.show = false
      }, 1500)
    })
  }

  //输入框失去焦点
  onInputBlur() {
    this.inputTextSty["z-index"] = 5;
  }
  //鼠标变形
  onCheckChangePageAU(order: string | any) {

    //首页
    switch (order) {
      case "first":
        if (this.dataInf.page == 1) {
          return { disable: true }
        }
        break;
      case "pre":
        if (this.dataInf.page - 1 <= 0) {
          return { disable: true }
        };
        break;
      case "last":
        if (this.dataInf.page >= this.dataInf.totalPage) {
          return { disable: true }
        }; break;
      case "next": if (this.dataInf.page - 0 + 1 > this.dataInf.totalPage) {
        return { disable: true }
      }; break;
    }
  }

  //设置刷新动画
  getReflreshSty(idx: number): string {
    if (!this.operaRefresh) return ""
    return this.operaRefresh[idx] ? "fa-spin" : ""
  }

  //改变刷新动画的状态
  onChangeReflreshState(idx: number): void {
    this.operaRefresh[idx] = !this.operaRefresh[idx];
    this.onReflresh.emit({
      state: this.operaRefresh[idx],
      data: this.dataSource[idx]
    });
    this.do();

  };

  //修改属性
  onChangeInfo(idx: number): void {
  
    this.onChangeInfomation.emit(this.dataSource[idx]);
    this.do();
  };
  //删除选中行
  onDelInfo(idx: number): void {

    this.onDelInfomation.emit(this.dataSource[idx]);
    this.do();
  };

  //展示detail
  onShowDetail(e: any, idx: number): void {
    if (this.operaShowDetail[idx] && this.operaShowDetail[idx].show) {  //删除

      $(this.operaShowDetail[idx].el).remove();
      this.operaShowDetail[idx].show = false;
    } else {
      var curTr = $(e.target).closest('tr');
      var ele = $(`
        <tr>
         <td class='ace-tb-detail' colspan="${this.computeNotDataColspan()}">
         ${(<any>this.dataSource[idx]).detail}
         </td>
        </tr>  
      `);
      this.operaShowDetail[idx] = {
        el: ele[0],
        show: true
      };
      ele.insertAfter(curTr);
    }
    this.do();
  };

  // 全新功能  
  @Input() ajaxUrl: string;  //请求的地址
  @Input() setParamsFn;     // 设置请求参数的函数
  @Input() cbParams: CBparams;  //设置响应时候的各个字段的名称


  //启动第一次请求
  firstAjax() {
    this.sendAjax(1);
  };

  sendAjaxPage: number;  //请求的page

  //发送ajax
  sendAjax(page: number) {
    if (!this.cbParams) {
      throw new Error('ace-table cbParams undefined')
    }
    this.modalState.show = false;
    this.loading = true;
    this.sendAjaxPage = page;
    this.do();
    this.service.toAjax({
      url: this.ajaxUrl,
      setParams: this.setParamsFn,
      cb: this.ajaxCB,
      page,
      limit: this.rowNumber,
      cbParams: this.cbParams
    });
  }

  //请求成功
  ajaxCB = ({
    code,
    items,
    page,
    total,
    msg,
    data
  }) => {
    //根据code判断

    setTimeout(() => {
      this.checkScroll();
      setTimeout(() => {
        this.tableResize();
      })
      this.loading = false;
      this.do();
    }, 30)

    $(this.el.nativeElement).find('.ace-tb-detail').closest('tr').remove();

    this.initCheckRow();
    
    if (code == 200) {
      this.modalState.show = false;
      this.dataSource = items;
      this.dataInf.page = page;
      this.dataInf.total = total;
      this.dataInf.startId = ((page - 1) * this.rowNumber + 1)>0?((page - 1) * this.rowNumber + 1):0;
      this.dataInf.endId =( (page-1) * this.rowNumber)+this.dataSource.length;
      this.dataInf.totalPage = Math.ceil(total / this.rowNumber);
    } else {
      this.modalState.show = true;
      if (typeof msg == 'string') {
        this.modalState.text = msg;
      } else {
        this.modalState.text = '请求失败 错误码：' + code;
      }


    }
    this.onAjaxOver.emit(data);
  }

  //无数据时候的展示
  computeNotDataColspan() {
    var result = this.theadSource.length;
    if (this.multipleChoice) result++;
    if (this.changeState) result++;
    if (this.operateState) result++;

    return result;
  };

  //判断是否展示
  computeNotDataRow() {
    return this.dataSource.length == 0 && this.modalState.show == false && this.loading == false;
  }

  computedRowData(item) {
    if (typeof item == 'string' && item.indexOf("</") > -1) {
      return true
    } else {
      return false
    }
  }

}