<!-- 
 wx:index = "index":列表循環后所有位置都可以訪問索引
 -->
<view class="item" wx:for="{{list}}" wx:index = "index">
 <view class="left">
 <image class="avatar"></image>
 </view>
 <view class="right">
 <view class="nickname">{{item.nickName}}</view>
 <view class="content">{{item.content}}</view>
 <view class="image-list">
  <image class="image" wx:for="{{item.imageList}}"></image>
 </view>
 <view class="time-area">
  <view class="time">{{item.time}}</view>
  <view>
  <!--
   data-index="{{index}}"
   1.設置后在回調函數中currentTarget.dataset中顯示
   -->
  <image class="operation-button" src="../../images/caozuo.png" catchtap="showOperationPannel" data-index="{{index}}"></image>
  <!-- 判斷當前索引和面盤索引是否一致 -->
  <view class="operation-pannel" wx:if="{{showOperationPannelIndex == index}}">
   <!-- 設置索引和點擊函數 -->
   <view class="tab" catchtap="clickLove" data-index="{{index}}">
   <image class="image" src="../../images/love-white.png"></image>
   <text>贊</text>
   </view>
   <view class="tab">
   <image class="image" src="../../images/comment-white.png"></image>
   <text>評論</text>
   </view>
  </view>
  </view>
  
 </view>
 <view class="love-comment">
  <!-- 
  item.loveList=重復
  item.loveList
  <view class="love" wx:if="{{item.loveList.length > 0}}">
  <image class="love-icon" src="../../images/love-blue.png"></image>
  <text class="love-nickname" wx:for="{{item.loveList}}">老夫子 蘭陵王</text>
  </view>
  -->
  <view class="love" wx:if="{{item.loveList.length > 0}}">
  <image class="love-icon" src="../../images/love-blue.png"></image>
  <!-- love和整個循環的item不沖突 -->
  <text class="love-nickname" wx:for-items="{{item.loveList}}"
  wx:for-item = "love"
  >{{love.nickName}}</text>
  </view>
  <view class="comment" wx:if="{{item.commentList.length > 0}}">
  <view wx:for-items="{{item.commentList}}"
  wx:for-item = "comment">
   <text class="comment-nickname">{{comment.nickName}}</text>
   <text class="comment-content">{{comment.content}}</text>
  </view>
  </view>
 </view>
 </view>
</view>

// pages/circle/list.js
var that;
Page({

 /**
 * 頁面的初始數據
 */
 data: {
 userInfo:null,
 list:[],
 // 當前點擊操作面板的索引，每條朋友圈一個面板
 showOperationPannelIndex:-1,
 },

 /**
 * 生命周期函數--監聽頁面加載
 */
 onLoad: function (options) {
 that = this;
 for (var i = 1; i < 10; i++) {
  // 定義一個對象存儲數據
  var circleData = {};
  circleData.nickName = "朋友-" + i;
  circleData.content = "朋友發布內容-" + i;
  circleData.time = "2020-05-0" + i;

  //圖片列表
  var imageList = [];
  // 點贊列表
  var loveList = [];
  // 評論列表
  var commentList = [];


  // 這三個數組賦值給circleData
  circleData.imageList = imageList;
  circleData.loveList = loveList;
  circleData.commentList = commentList;

  // 給3個數組賦值
  for (var j = 1; j < i; j++) {
  // 圖片路徑，占位
  imageList.push(j);
  // loveList，定義loveData對象
  var loveData = {};
  loveData.nickName = "點贊-" + j;
  // 點贊數組加入loveList
  loveList.push(loveData);

  // 評論數據
  var commentData = {};
  commentData.nickName = "蘭陵王-" + j + "：";
  commentData.content = "評論內容-" + j;
  // 加入數據
  commentList.push(commentData);
  }

  that.data.list.push(circleData);
 }
 // 重新渲染
 that.setData({
  list: that.data.list
 })
 //獲取用戶信息
 wx.getStorage({
  key: "userInfo",
  success(res){
  //轉換成對象
  console.log("getStorage success:",JSON.parse(res.data));
  that.setData({
   userInfo:JSON.parse(res.data)
  })
  }
 })
 },
 //控制操作面板展示
 showOperationPannel(e){
 console.log("showOperationPannel",e);
 // 獲取點擊的索引
 var index = e.currentTarget.dataset.index;
 // 如果正在展示，則關閉
 if(that.data.showOperationPannelIndex == index){
  that.setData({
  // 索引從0開始
  showOperationPannelIndex:-1
  })
 }
 else{
  that.setData({
  // 設置成當前點擊的索引
  showOperationPannelIndex:index
  })
 }
 
 },
 // 點贊功能
 clickLove(e){
 console.log(e);
 var index = e.currentTarget.dataset.index;
 // 將這條數據取出
 var circleData = that.data.list[index];
 var loveList = circleData.loveList;
 var isHaveLove = false;
 for(var i = 0; i < loveList.length; i++){
  if(that.data.userInfo.nickName == loveList[i].nickName){
  isHaveLove = true;
  // 移除點贊
  loveList.splice(i,1);
  break;
  }
 }

 if(!isHaveLove){
  loveList.push({nickName:that.data.userInfo.nickName});
 }
 that.setData({
  list:that.data.list,
  // 關閉點贊評論面板
  showOperationPannelIndex:-1
 })

 },
 
})