ts_aimz/pages/shop/goodsDetail/goodsDetail.js

// pages/shop/goodsDetail/goodsDetail.js
import Shop from '../../../net/api/shop'
import {
    sImgPrefix,
} from '../../../net/mainUrl'
const app = getApp()
const deviceInfo = wx.getDeviceInfo()
const screenInfo = wx.getWindowInfo();
const statusBarHeight = screenInfo.statusBarHeight; // 状态栏高度
const navBarHeight = deviceInfo.platform == 'IOS' ? 48 : 50; // 导航栏高度（iOS 为 44px，Android 为 48px）
Page({

    /**
     * 页面的初始数据
     */
    data: {
        animationClass: '',
        statusBarHeight: statusBarHeight,
        totalHeight: navBarHeight,
        id: '',
        msgType: 'info',
        msgHint: '',
        msgShow: false,
        goods: null,
        isagree: false
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad(options) {
        wx.setNavigationBarTitle({
            title: '我要买',
        })
        wx.setNavigationBarColor({
            frontColor: '#FFFFFF', // 必写项，字体颜色仅支持#ffffff和#000000
            backgroundColor: '#000000', // 传递的颜色值，仅支持十六进制颜色
        })
        const id = options.id
        if (id != '') {
            this.setData({
                id: id
            })
            this.doGetDetail()
        } else {
            this.setData({
                msgType: 'error',
                msgHint: '数据有误,请刷新重试',
                msgShow: true
            })
            setTimeout(() => {
                wx.navigateBack()
            }, 1200);
        }
    },
    onShow() {
        this.setData({
            animationClass: 'fade-in'
        })
    },
    onHide() {
        this.setData({
            animationClass: 'fade-out'
        })
    },
    doBack() {
        wx.navigateBack()
    },
    doPreImg(e) {
        const url = e.currentTarget.dataset.url
        wx.previewImage({
            urls: [url],
        })
    },
    doChangeDeal() {
        this.setData({
            isagree: !this.data.isagree
        })
    },
    //显示购买协议
    doShowDeal() {
        wx.navigateTo({
            url: '/pages/treaty/rule/rule?id=db805bf2-eef9-47d5-941b-cdc3b83ec316&needToken=true',
        })
    },
    //提交购买
    doConfirm() {
        if (this.data.isagree) {
            this.doSaveOrder()
        } else {
            this.setData({
                msgHint: '请阅读并同意购买协议',
                msgType: 'info',
                msgShow: true
            })
        }
    },
    async doSaveOrder() {
        try {
            wx.showLoading({
                title: '购买中..',
            });

            const res = await Shop.doSaveOrder(this.data.id);
            wx.hideLoading();

            if (res && res.data != '') {
                await this.doConfirmOrder(res.data);
            } else {
                this.setData({
                    msgHint: '网络错误,请稍后重试',
                    msgType: 'error',
                    msgShow: true
                });
            }
        } catch (err) {
            wx.hideLoading();
            this.setData({
                msgHint: err.msg ? err.msg : '网络错误,请稍后重试',
                msgType: 'error',
                msgShow: true
            });
        }
    },

    async doConfirmOrder(id) {
        try {
            wx.showLoading({
                title: '购买中...',
            });

            await Shop.doConfirmOrder(id);
            wx.hideLoading();

            this.setData({
                msgHint: '购买成功',
                msgType: 'success',
                msgShow: true
            });

            setTimeout(() => {
                this.backPageRefresh()
            }, 1500);
        } catch (err) {
            wx.hideLoading();
            this.setData({
                msgHint: err.msg ? err.msg : '网络错误,请稍后重试',
                msgType: 'error',
                msgShow: true
            });
        }
    },
    doGetDetail() {
        const that = this
        wx.showLoading({
            title: '加载中...',
        })
        Shop.doGetGoodsDetail(that.data.id)
            .then(res => {
                wx.hideLoading()
                console.log(res)
                if (res.goodsPhoto && res.goodsPhoto != '') {
                    res.goodsPhoto = sImgPrefix + res.goodsPhoto
                    that.setData({
                        goods: res
                    })
                } else {
                    that.setData({
                        msgHint: '网络错误,请稍后重试',
                        msgType: 'error',
                        msgShow: true
                    })
                    setTimeout(() => {
                        wx.navigateBack()
                    }, 1200);
                }
            })
            .catch(err => {
                wx.hideLoading()
                that.setData({
                    msgHint: err.msg ? err.msg : '网络错误,请稍后重试',
                    msgType: 'error',
                    msgShow: true
                })
                setTimeout(() => {
                    wx.navigateBack()
                }, 1200);
            })
    },
    backPageRefresh: function () {
        var pages = getCurrentPages();
        var beforePage = pages[pages.length - 2];
        beforePage.setData({
            needRefresh: true
        });
        wx.navigateBack();
    }
})