<!--index.wxml-->
<wxs src="./../../wxs/subString.wxs" module="tools"/>
<view class="container">
  <view class="userinfo">
    <view class="addDiv {{addShow?'':'hide'}}">
      <view class="addDivContent">
        <input bindinput='bindAddText' placeholder="请输入内容" focus="{{inputFocus}}" value="{{addText}}" class="addDivInput" />
        <view class="addDivButton">
          <button class="addDivButtonMargin" bindtap="addTodo" type="primary" size="mini">确定添加</button>
          <button bindtap="cancelTodo" type="default" size="mini">取消</button>
        </view>
      </view>
    </view>
    <button wx:if="{{!hasUserInfo && canIUse}}" open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 获取头像昵称 </button>
    <block wx:else>
      <image bindtap="bindViewTap" class="userinfo-avatar" src="{{userInfo.avatarUrl}}" mode="cover"></image>
      <text class="userinfo-nickname">{{userInfo.nickName}}</text>
    </block>
    <view class="listDivTop">
      <view class="listDivType">
        <view class="{{(todoTabId=='tab1'?'listDivTypeSelected':'')}}" data-id="tab1" bindtap="onChangeSelect">全部</view>
        <view class="{{(todoTabId=='tab2'?'listDivTypeSelected':'')}}" data-id="tab2" bindtap="onChangeSelect">已完成</view>
        <view class="{{(todoTabId=='tab3'?'listDivTypeSelected':'')}}" data-id="tab3" bindtap="onChangeSelect">未完成</view>
      </view>
      <view>
        <button type="primary" size="mini" bindtap="addDivShow">添加</button>
      </view>
    </view>
    <view class="listDivContent">
      <view class="items">
        <view wx:for="{{todoDtBind}}" wx:key="{{index}}" class="listDivItem">
          <view bindtouchstart="touchStart" bindtouchmove="touchMove" bindtouchend="touchEnd" data-state="{{item.state}}" data-index="{{index}}" style="{{item.txtStyle}}" class="inner txt">
            <view class="listDivRow">
              <view>{{index+1}}.{{tools.sub(item.content)}}</view>
              <view class="itemTime">{{item.addTime}}</view>
            </view>

          </view>
          <view wx:if="{{item.state==2}}" data-index="{{index}}" bindtap="finishItem" class="inner finish">标记完成</view>
          <view data-index="{{index}}" bindtap="delItem" class="inner del">删除</view>
        </view>
      </view>
    </view>
  </view>
</view>

//index.js
//获取应用实例
const app = getApp()

Page({
  data: {
    addShow: false, //添加输入面板是否显示
    inputFocus: false,//是否选中
    addText: '',//新增内容
    todoTabId: 'tab1',//tab选中
    totalCount: 70,//总数据
    pageSize: 20,//显示行数
    pageNum: 1,//页码
    todoDtBind: [],//绑定的数据集合
    todoList: [],//数据集合(所有的)
    delBtnWidth: 60, //删除按钮宽度
    finishBtnWidth: 80, //删除按钮宽度
    startX: "", //触摸开始滑动的位置
    userInfo: {},
    hasUserInfo: false,
    canIUse: wx.canIUse('button.open-type.getUserInfo')
  },
  //事件处理函数
  bindViewTap: function() {
    wx.navigateTo({
      url: '../logs/logs'
    })
  },
  onShow: function() {
    this.setData({
      pageNum: 1
    })
    this.getBindDtInfo("正在加载中");
    this.setBindDtInfo(this.data.todoTabId);
  },
  /**
   * 获取绑定数据
   * @param msg:加载信息
   */
  getBindDtInfo: function(msg) {
    wx.showLoading({
      title: msg,
    })
    setTimeout(function() {
      wx.hideLoading()
    }, 2000)
    var vNum = this.data.pageNum;
    var count = vNum * this.data.pageSize;//页码乘以行数得到的理论条数
    var showCount = 0;//显示条数
    if (count <= this.data.totalCount) {
      showCount = count;
    } else {
      showCount = this.data.totalCount;
      vNum = vNum - 1;
    }
    let objItem = {};
    let dtInfo = [];//创造数据
    for (var i = 0; i < showCount; i++) {
      objItem = {
        id: i + 1,
        content: '计划工作项目' + (i + 1).toString(),
        addTime: this.getStrDate(Date.parse(new Date()) / 1000),
        state: (i < 6) ? 2 : 1,//前6行显示为未完成
        txtStyle: ''
      }
      dtInfo.push(objItem)
    }
    this.setData({
      todoList: dtInfo,
      pageNum: vNum
    });
  },
  /**
   * 页面上拉触底事件
   */
  onReachBottom: function() {
    if (this.data.todoList.length <= this.data.totalCount) {
      let vNum = this.data.pageNum + 1;
      this.setData({
        pageNum: vNum
      })
      this.getBindDtInfo("正在加载中");
      this.setBindDtInfo(this.data.todoTabId);
    } else {
      wx.showToast({
        title: '没有更多数据',
        icon: 'none',
        duration: 2000
      })
    }
  },
  /**
   * 通过时间戳获取时间表达式
   */
  getStrDate: function(vTime) {
    var res = /^\d+$/;
    if (!res.test(vTime)) {
      return vTime;
    }
    var date = new Date(vTime * 1000);
    var Y = date.getFullYear(); //年
    var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1); //月
    var D = date.getDate() < 10 ? '0' + date.getDate() : date.getDate(); //日
    var h = date.getHours() < 10 ? '0' + date.getHours() : date.getHours(); //时
    var m = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes(); //分
    var s = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds(); //秒
    var strDate = Y + "/" + M + "/" + D + " " + h + ":" + m + ":" + s;
    return strDate;
  },
  /**
   * 添加按钮事件
   */
  addDivShow: function() {
    this.setData({
      addShow: true,
      inputFocus: true
    });
  },
  //输入内容绑定至数据
  bindAddText: function(e) {
    this.setData({
      addText: e.detail.value
    })
  },
  //确定新增按钮事件
  addTodo: function() {
    var content = this.data.addText;
    if (content.trim() == "") {
      wx.showToast({
        title: '添加的内容信息不能为空!',
        icon: 'none',
        duration: 2000
      })
      return;
    }
    var dtInfo = this.data.todoList;
    var objAdd = {
      id: dtInfo.length + 1,
      content: content,
      addTime: this.getStrDate(Date.parse(new Date()) / 1000),
      state: 2,
      txtStyle: ''
    }
    dtInfo.unshift(objAdd);
    var count = this.data.totalCount + 1;
    this.setData({
      todoList: dtInfo,
      totalCount: count,
      addShow: false,
      inputFocus: false,
      addText: ''
    });
    this.setBindDtInfo(this.data.todoTabId)
  },
  //取消按钮事件
  cancelTodo: function() {
    this.setData({
      addShow: false,
      inputFocus: false,
      addText: ''
    });
  },
  //设置绑定数据集合
  setBindDtInfo: function(vTabId) {
    var dtInfo = [];
    if (vTabId == "tab1") {
      dtInfo = this.data.todoList;
    } else if (vTabId == "tab2") {
      for (var i = 0; i < this.data.todoList.length; i++) {
        if (this.data.todoList[i].state == 1) {
          dtInfo.push(this.data.todoList[i]);
        }
      }
    } else {
      for (var i = 0; i < this.data.todoList.length; i++) {
        if (this.data.todoList[i].state == 2) {
          dtInfo.push(this.data.todoList[i]);
        }
      }
    }
    this.setData({
      todoDtBind: dtInfo,
      todoTabId: vTabId
    });
  },
  /**
   * 类型选中事件(全部,已完成,未完成)
   */
  onChangeSelect: function(e) {
    var dtInfo = this.data.todoList;
    dtInfo.forEach(function(item) {
      item.txtStyle = "";
    })
    var self = this;
    var id = e.currentTarget.dataset.id;
    this.setBindDtInfo(id);
  },
  // 滑动开始
  touchStart: function(e) {
    var dtInfo = this.data.todoDtBind;
    dtInfo.forEach(function(item) {
      item.txtStyle = "";
    })
    if (e.touches.length == 1) {
      this.setData({
        //设置触摸起始点水平方向位置
        startX: e.touches[0].clientX,
        todoDtBind: dtInfo
      });
    }
  },
  //滑动
  touchMove: function(e) {
    if (e.touches.length == 1) {
      //移动时水平方向位置
      var moveX = e.touches[0].clientX;
      var dValueX = this.data.startX - moveX; //差值:手指点击开始的X坐标位置减去移动的水平位置坐标
      var operBtnWidth = this.data.delBtnWidth;
      var state = e.currentTarget.dataset.state;
      if (state == 2) {
        operBtnWidth = this.data.delBtnWidth + this.data.finishBtnWidth;
      }
      var txtStyle = "";
      //没有移动或者向右滑动不进行处理
      if (dValueX == 0 || dValueX < 0) {
        txtStyle = "left:0px";
      } else {
        txtStyle = "left:-" + dValueX + "px";
      }
      if (dValueX >= operBtnWidth) {
        //文本移动的最大距离
        txtStyle = "left:-" + operBtnWidth + "px";
      }
      var index = e.currentTarget.dataset.index;
      var dtInfo = this.data.todoDtBind;
      dtInfo[index].txtStyle = txtStyle;
      this.setData({
        todoDtBind: dtInfo
      })
    }
  },
  //滑动结束
  touchEnd: function(e) {
    if (e.changedTouches.length == 1) {
      var endX = e.changedTouches[0].clientX;
      var dValueX = this.data.startX - endX;
      var operBtnWidth = this.data.delBtnWidth;
      var state = e.currentTarget.dataset.state;
      if (state == 2) {
        operBtnWidth = this.data.delBtnWidth + this.data.finishBtnWidth;
      }
      var txtStyle = ""
      if (dValueX > operBtnWidth / 2) {
        txtStyle = "left:-" + operBtnWidth + "px";
      } else {
        txtStyle = "left:0px"
      }
      var index = e.currentTarget.dataset.index;
      var dtInfo = this.data.todoDtBind;
      dtInfo[index].txtStyle = txtStyle;
      this.setData({
        todoDtBind: dtInfo
      })
    }
  },
  //标记完成
  finishItem: function(e) {
    var index = e.currentTarget.dataset.index;
    var dtInfo = this.data.todoDtBind;
    dtInfo[index].state = 1;
    dtInfo[index].txtStyle = "left:0px";
    this.setData({
      todoDtBind: dtInfo
    })
    this.setBindDtInfo(this.data.todoTabId);
    wx.showToast({
      title: '已完成成功',
      icon: 'success',
      duration: 2000
    })
  },
  //删除按钮事件
  delItem: function(e) {
    var index = e.currentTarget.dataset.index;
    var dtInfo = this.data.todoDtBind;
    var dtInfoList = this.data.todoList;
    var removeIndex = -1;
    for (var i = 0; i < dtInfoList.length; i++) {
      if (dtInfoList[i].id == dtInfo[index].id) {
        removeIndex = i;
      }
    }
    dtInfoList.splice(removeIndex, 1);
    var count = this.data.totalCount - 1;
    this.setData({
      todoList: dtInfoList,
      totalCount: count
    })
    this.setBindDtInfo(this.data.todoTabId);
    wx.showToast({
      title: '删除成功',
      icon: 'success',
      duration: 2000
    })
  },
  onLoad: function() {

    if (app.globalData.userInfo) {
      this.setData({
        userInfo: app.globalData.userInfo,
        hasUserInfo: true
      })
    } else if (this.data.canIUse) {
      // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回
      // 所以此处加入 callback 以防止这种情况
      app.userInfoReadyCallback = res => {
        this.setData({
          userInfo: res.userInfo,
          hasUserInfo: true
        })
      }
    } else {
      // 在没有 open-type=getUserInfo 版本的兼容处理
      wx.getUserInfo({
        success: res => {
          app.globalData.userInfo = res.userInfo
          this.setData({
            userInfo: res.userInfo,
            hasUserInfo: true
          })
        }
      })
    }
  },
  getUserInfo: function(e) {
    console.log(e)
    app.globalData.userInfo = e.detail.userInfo
    this.setData({
      userInfo: e.detail.userInfo,
      hasUserInfo: true
    })
  }
})

var sub =function(val) {
  if (val == undefined || val.length == 0) {
    return;
  }
  if (val.length > 10) {
    return val.substring(0, 10) + "..."
  } else {
    return val;
  }
}

module.exports={
  sub:sub
}

/**index.wxss**/

.userinfo {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.userinfo-avatar {
  width: 128rpx;
  height: 128rpx;
  margin: 20rpx;
  border-radius: 50%;
}

.userinfo-nickname {
  color: #aaa;
}

.addDiv {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background-color: #fff;
  z-index: 999;
}

.addDivContent {
  padding: 10px;
}

.addDivInput {
  border: solid 1px gainsboro;
  border-radius: 6px;
  height: 60px;
  margin-bottom: 10px;
}

.addDivButtonMargin {
  margin-right: 20px;
}

.hide {
  display: none;
}

.listDivTop {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  padding-top: 10px;
  padding-bottom: 10px;
  width: 96%;
  border-bottom: 1px solid gainsboro;
}

.listDivType {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  width: 60%;
  color: #999;
}

.listDivTypeSelected {
  color: green;
  font-weight: 600;
}

.listDivContent {
  width: 100%;
  color: #666;
  margin: 0 auto;
  padding: 40rpx 0;
  position: absolute;
  top: 150px;
}

.items {
  width: 100%;
}

.listDivRow {
  width: 98%;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.listDivItem {
  position: relative;
  height: 80rpx;
  line-height: 80rpx;
  overflow: hidden;
}

.inner {
  position: absolute;
  top: 0;
}

.inner.txt {
  width: 100%;
  z-index: 5;
  transition: left 0.2s ease-in-out;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background-color: lightcyan;
}

.itemTime {
  font-size: 12px;
}

.inner.del {
  width: 60px;
  text-align: center;
  z-index: 4;
  right: 0;
  background-color: red;
}

.inner.finish {
  width: 80px;
  text-align: center;
  z-index: 4;
  right: 60px;
  background-color: green;
}