tourism-wxapp/nova-tourism/pages/homestay/homestay-order2/index.js

// nova-tourism/pages/homestay/homestay-order2/index.js
let Parse = getApp().Parse;
const company = getApp().globalData.company
import dataSource from '../../../service/data';
import dateServ from '../../../service/date';
const rechText = require('../../../../utils/rech-text')
Page({

    /**
     * 页面的初始数据
     */
    data: {
        //屏幕高度
        statusBarHeight: 0, // 状态栏高度
        screenHeight: 0, // 屏幕高度
        customHeight: 0, // 自定义导航栏高度（如小程序右上角胶囊按钮）
        bottomNavHeight: 0, // 底部导航栏高度
        contentHeight: 0, // 可用内容高度

        roomList: [],
        startTime: null, // 入住开始时间
        endTime: null, // 入住结束时间
        roomId: null,
        count: 1, // 入住几晚
        date: '' //入住区间
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
        const systemInfo = wx.getSystemInfoSync();
        const statusBarHeight = systemInfo.statusBarHeight || 0;
        const screenHeight = systemInfo.screenHeight || 0;
        const custom = wx.getMenuButtonBoundingClientRect();
        const customHeight = custom.height + 10 + 2 || 0;
        const bottomNavHeight = systemInfo.screenHeight - systemInfo.safeArea.bottom || 0;

        const contentHeight = (screenHeight - bottomNavHeight - statusBarHeight - customHeight) * 750 / systemInfo.windowWidth;

        this.setData({
            contentHeight
        });

        const {
            objectId,
            date_start,
            date_end,
        } = options;
        const date_start1 = decodeURIComponent(date_start);
        const date_end1 = decodeURIComponent(date_end);
        this.setData({
            startTime: date_start1,
            endTime: date_end1,
            roomId: objectId

        })
        console.log('123', date_start1, date_end1);
        this.getroom()
        this.getdate()
    },
    //计算用户选择的入住和离店日期，并生成相应的日期范围和价格信息。
    getdate() {
        // let {
        //     startTime,
        //     endTime
        // } = this.formatTimeArea(this.data.start, this.data.end)
        // console.log('开始时间', this.data.start, '结束时间', this.data.end);
        // console.log('开始时间', startTime, '结束时间', endTime);
        var dataAll = dateServ.getDayAll(this.data.startTime, this.data.endTime);
        dataAll.pop(); // 最后一天为退房，不算在内
        console.log('dataAll',dataAll);
        // console.log(this.formatDate(startTime), this.formatDate(endTime))
        let dateStr = this.formatDate(this.data.startTime) + '-' + this.formatDate(this.data.endTime)
        console.log('dateStr',dateStr)
        this.setData({
            // showDate: false,
            date: `${this.formatDate(this.data.startTime)} - ${this.formatDate(this.data.endTime)}`,
            // priceInfoArr: dataAll,
            count: dataAll.length
        })

        console.log('天数',this.data.count);
    },
    //修改时间格式
    formatDate(date) {
        date = new Date(date);
        
        // 获取当前日期
        const today = new Date();
        
        // 格式化日期为 "月/日"
        const month = date.getMonth() + 1; // 月份从0开始，所以要加1
        const day = date.getDate();
        
        // 获取星期几
        const weekDays = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"];
        const weekDay = weekDays[date.getDay()]; // 获取星期几的中文
    
        // 判断是今天还是明天
        let dateDescription = '';
        if (date.toDateString() === today.toDateString()) {
            dateDescription = '今天';
        } else if (date.toDateString() === new Date(today.getTime() + 86400000).toDateString()) {
            dateDescription = '明天';
        } else {
            dateDescription = weekDay; // 其他情况返回星期几
        }
    
        // 返回格式化的字符串
        return `${month}月${day}日 ${dateDescription}`;
    },
    //获取房间信息
    async getroom() {
        let room = new Parse.Query('ShopRoom');
        room.equalTo('company', company);
        room.equalTo('objectId', this.data.roomId);
        room.equalTo('isEnabled', 'true');
        room.include('shop');
        room.notEqualTo('isDeleted', 'true');

        let room2 = await room.find();
        let roomList = room2.map(item => item.toJSON());
        this.setData({
            roomList
        })
        console.log('房间', this.data.roomList);
    },
    //计算选择日期的房间数量
    async checkOrderCount() {
        //   start1  end1   现在选择
        //   start2  end2     已有订单时间
        //   start1 < start2              end1 < end2
        //   start1 > start2              end1 > end2
        //   start1 = start2              end1 = end2
        let now = dateServ.changeDateTime(new Date(), '14:00:00')
        let Order = new Parse.Query("RoomOrder")
        Order.equalTo("room", this.data.roomId)
        Order.equalTo("company", company)
        Order.exists("status")
        Order.notEqualTo("status", 100)
        Order.notEqualTo("status", 400)
        Order.notEqualTo("status", 601)
        Order.notEqualTo("status", 700)
        Order.greaterThanOrEqualTo("startTime", this.data.endTime) //20  23    21 22  
        Order.lessThanOrEqualTo("endTime", this.data.startTime)
        Order.select("startTime", "endTime")
        let count = await Order.count()
        console.log(count);
        return count
    },
    //点击支付
    async submit() {
        if (!this.data.startTime || !this.data.endTime) {
            wx.showToast({
                title: '请选择入住时间',
                icon: 'none',
            })
            return
        }
        if (this.data.customers.length == 0) {
            wx.showToast({
                title: '请选择入住人',
                icon: 'none',
            })
            return
        }
        let count = await this.checkOrderCount()
        if (count >= this.data.room.total) {
            console.log(count);
            wx.showToast({
                title: '当前日期，已无剩余房间，请重新选择',
                icon: 'none',
            })
            return
        }
        let tradeNo = this.getTradeNo()
        let order = await this.setOrder(tradeNo)
        if (order) {
            this.setData({
                activeOrder: order,
                tradeNo,
                showPayment: true,
            })
        }
    },

    /**
     * 生命周期函数--监听页面初次渲染完成
     */
    onReady: function () {

    },

    /**
     * 生命周期函数--监听页面显示
     */
    onShow: function () {

    },

    /**
     * 生命周期函数--监听页面隐藏
     */
    onHide: function () {

    },

    /**
     * 生命周期函数--监听页面卸载
     */
    onUnload: function () {

    },

    /**
     * 页面相关事件处理函数--监听用户下拉动作
     */
    onPullDownRefresh: function () {

    },

    /**
     * 页面上拉触底事件的处理函数
     */
    onReachBottom: function () {

    },

    /**
     * 用户点击右上角分享
     */
    onShareAppMessage: function () {

    }
})