mall-app-b/peach/platform/share.js

import $store from '@/peach/store'
import $platform from '@/peach/platform'
import $router from '@/peach/router'
import $url from '@/peach/url'
// #ifdef H5
import $wxsdk from '@/peach/libs/sdk-h5-weixin'
// #endif

// 设置分享的平台渠道: 1=H5,2=微信公众号网页,3=微信小程序,4=App
const platformMap = ['H5', 'WechatOfficialAccount', 'WechatMiniProgram', 'App']

// 设置分享方式: 1=直接转发,2=海报,3=复制链接
const fromMap = ['forward', 'poster', 'link']

// 设置分享信息参数
const getShareInfo = (
    scene = {
        title: '', // 自定义分享标题
        desc: '', // 自定义描述
        image: '', // 自定义分享图片
        params: {}, // 自定义分享参数
    },
    poster = {
        // 自定义海报数据
        type: 'user',
    }
) => {
    let shareInfo = {
        title: '', // 分享标题
        desc: '', // 描述
        image: '', // 分享图片
        path: '', // 分享页面+参数
        link: '', // 分享Url+参数
        query: '', // 分享参数
        poster, // 海报所需数据
    }

    const app = $store('app')
    const shareConfig = app.platform.share

    // 自动拼接分享用户参数
    const query = buildSpmQuery(scene.params)
    shareInfo.query = query

    // 配置分享链接地址
    shareInfo.link = buildSpmLink(query, shareConfig.linkAddress)

    // 配置转发参数
    if (shareConfig.methods.includes('forward')) {
        if (shareConfig.forwardInfo.title === '' || shareConfig.forwardInfo.image === '') {
            console.log('请在平台设置中配置转发信息')
        }
        // 设置自定义分享信息
        shareInfo.title = scene.title || shareConfig.forwardInfo.title
        shareInfo.image = $url.cdn(scene.image || shareConfig.forwardInfo.image)
        shareInfo.desc = scene.desc || shareConfig.forwardInfo.subtitle
        shareInfo.path = buildSpmPath(query)
    }

    return shareInfo
}

// 构造spm分享参数
const buildSpmQuery = (params) => {
    const user = $store('user')
    let shareId = '0' // 设置分享者用户ID
    if (typeof params.shareId === 'undefined') {
        if (user.isLogin) {
            shareId = user.userInfo.id
        }
    }
    let page = '1' // 页面类型: 1=首页(默认),2=商品,3=拼团商品,4=秒杀商品,5=邀请参团
    if (typeof params.page !== 'undefined') {
        page = params.page
    }
    let query = '0' // 设置页面ID: 如商品ID、拼团ID等
    if (typeof params.query !== 'undefined') {
        query = params.query
    }
    let platform = platformMap.indexOf($platform.name) + 1
    let from = '1'
    if (typeof params.from !== 'undefined') {
        from = platformMap.indexOf(params.from) + 1
    }
    //spmParams = ...  可按需扩展
    return `spm=${shareId}.${page}.${query}.${platform}.${from}`
}

// 构造页面分享参数
const buildSpmPath = (query) => {
    return `/pages/index/index?${query}`
}

// 构造分享链接
const buildSpmLink = (query, linkAddress = '') => {
    return `${linkAddress}?${query}`
}

// 解析Spm
const decryptSpm = (spm) => {
    const user = $store('user')
    let shareParamsArray = spm.split('.')
    let shareParams = {
        spm,
        shareId: 0,
        page: '',
        query: {},
        platform: '',
        from: '',
    }
    let query
    shareParams.shareId = shareParamsArray[0]
    switch (shareParamsArray[1]) {
        case '1':
            // 默认首页不跳转
            shareParams.page = '/pages/index/index'
            break
        case '2':
            // 普通商品
            shareParams.page = '/pages/goods/index'
            shareParams.query = {
                id: shareParamsArray[2],
            }
            break
        case '3':
            // 拼团商品
            shareParams.page = '/pages/goods/groupon'
            query = shareParamsArray[2].split(',')
            shareParams.query = {
                id: query[0],
                activity_id: query[1],
            }
            break
        case '4':
            // 秒杀商品
            shareParams.page = '/pages/goods/seckill'
            query = shareParamsArray[2].split(',')
            shareParams.query = {
                id: query[1],
            }
            break
        case '5':
            // 参与拼团
            shareParams.page = '/pages/activity/groupon/detail'
            shareParams.query = {
                id: shareParamsArray[2],
            }
            break
    }
    shareParams.platform = platformMap[shareParamsArray[3] - 1]
    shareParams.from = fromMap[shareParamsArray[4] - 1]
    if (shareParams.shareId != 0) {
        // 已登录 立即添加分享记录
        if (user.isLogin) {
            user.addShareLog(shareParams)
        } else {
            // 未登录 待用户登录后添加分享记录
            uni.setStorageSync('shareLog', shareParams)
        }
    }

    if (shareParams.page !== '/pages/index/index') {
        $router.go(shareParams.page, shareParams.query)
    }
    return shareParams
}

// 更新公众号分享sdk
const updateShareInfo = (shareInfo) => {
    // #ifdef H5
    if ($platform.name === 'WechatOfficialAccount') {
        $wxsdk.updateShareInfo(shareInfo)
    }
    // #endif
}

export default {
    getShareInfo,
    updateShareInfo,
    decryptSpm,
}