mall-front-app/sheep/platform/share.js

import $store from '@/sheep/store';
import $platform from '@/sheep/platform';
import $router from '@/sheep/router';
import $url from '@/sheep/url';
// #ifdef H5
import $wxsdk from '@/sheep/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,...按需扩展
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,...按需扩展
const fromMap = ['forward', 'poster', 'link'];

// TODO 非繁人：分享的接入
// 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);
	// console.log("share.js link", shareInfo.link)
	// 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 = $store('user');
	let shareId = '0'; // 设置分享者用户ID
	if (typeof params.shareId === 'undefined') {
		if (user.isLogin) {
			// todo @非繁人 id为空
			shareId = user.userInfo.id;
		}
	}
	let page = '1'; // 页面类型: 1=首页(默认),2=商品,3=拼团商品,4=秒杀商品,5=邀请参团...按需扩展
	if (typeof params.page !== 'undefined') {
		page = params.page;
	}
	let query = '0'; // 设置页面ID: 如商品ID、拼团ID等
	if (typeof params.query !== 'undefined') {
		query = params.query;
	}
	let platform = platformMap.indexOf($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 = {
				linkId: shareParamsArray[2],
			};
			console.log(shareParams.query)
			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,
};