const app = getApp();
let iPageIndex = 1 // 当前第几页,0代表第一页 
let iPageSize = 10 //每页显示多少数据
Page({
    data: {
        imageUrl: getApp().globalData.imageUrl,
        id: "",
        source: "",
        user_author: "",
        sourcetime: "",
        title: "",
        content: "",
        affections: "",
        crisis: "",
        ssim: "",
        dataList: [], //放置返回数据的数组  
        loadMore: false, //"上拉加载"的变量，默认false，隐藏  
        loadAll: false, //“没有数据”的变量，默认false，隐藏  
        totalNum: 0
    },
    onLoad() {
        wx.setNavigationBarTitle({
            title: '详情'
        })
        let pages = getCurrentPages();
        let currentPage = pages[pages.length - 1]
        let options = currentPage.options
        this.setData({
            id: options.id
        })
    },
    onShow() {
        this.getData().then(() => {
            this.getLikeData()
        })
    },
    //页面上拉触底事件的处理函数
    onReachBottom: function () {
        console.log("上拉触底事件")
        let that = this
        if (!that.data.loadMore) {
            that.setData({
                loadMore: true, //加载中  
                loadAll: false //是否加载完所有数据
            });
            //加载更多，这里做下延时加载
            that.getLikeData();
        }
    },
    searchScrollLower() {
        this.getLikeData();
    },
    getData() {
        return new Promise((resolve, reject) => {
            app.globalData.request({
                action: 'getDataById',
                sId: this.data.id,
                sType: 'ZhuTiFenXiBl',
                token: wx.getStorageSync('token') || 't%2BrswgjvzGM='
            }).then(res => {
                let arr = res || [];
                if (arr.length > 0) {
                    let data = arr[0];
                    this.setData({
                        source: data._source.source,
                        user_author: data._source.user_author,
                        sourcetime: data._source.sourcetime,
                        title: data._source.title,
                        content: data._source.content,
                        affections: data._source.affections,
                        crisis: data._source.crisis,
                        ssim: data._source.ssim
                    })
                }
                resolve(true)
            }).catch(() => {
                reject(false)
            })
        })
    },
    getLikeData() {
        let sTimeType = wx.getStorageSync('sTimeType') || 34;
        let sStartTime = "";
        let sEndTime = "";
        if (sTimeType == 4) {
            sStartTime = wx.getStorageSync('sStartTime') || '';
            sEndTime = wx.getStorageSync('sEndTime') || '';
        }
        let obj = {
            action: "getSimilarityData",
            sId: this.data.id,
            sSsim: this.data.sSsim,
            sType: "ZhuTiFenXiBl",
            iPageIndex: iPageIndex,
            iPageSize: iPageSize,
            token: wx.getStorageSync('token') || 't%2BrswgjvzGM=',
            sTimeType: sTimeType,
            sStartTime: sStartTime,
            sEndTime: sEndTime
        }
        //第一次加载数据
        if (iPageIndex == 1) {
            this.setData({
                loadMore: true, //把"上拉加载"的变量设为true，显示  
                loadAll: false //把“没有数据”设为false，隐藏  
            })
        }
        app.globalData.request(obj, (database) => {
            this.setData({
                totalNum: database.totalNum
            })
        }).then(res => {
            if (res && res.length > 0) {
                iPageIndex++;
                //把新请求到的数据添加到dataList里  
                let list = this.data.dataList.concat(res);
                this.setData({
                    dataList: list, //获取数据数组    
                    loadMore: false //把"上拉加载"的变量设为false，显示  
                });
                if (res.length < pageSize) {
                    this.setData({
                      loadMore: false, //隐藏加载中。。
                      loadAll: true //所有数据都加载完了
                    });
                }
            } else {
                this.setData({
                    loadAll: true, //把“没有数据”设为true，显示  
                    loadMore: false //把"上拉加载"的变量设为false，隐藏  
                });
            }
        })
    }
})