import { devWechatMock, wxAppId, wxRedirectUri } from './config.js'
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/** 从当前 URL 解析微信 OAuth code */
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export function extractOAuthCodeFromUrl () {
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if (typeof window === 'undefined') return ''
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const href = window.location.href
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if (href.indexOf('code=') === -1) return ''
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const parts = href.split('?')
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for (const q of parts) {
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if (q.indexOf('code=') !== -1) {
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const stateIdx = q.indexOf('&state')
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return q.substring(q.indexOf('code=') + 5, stateIdx > -1 ? stateIdx : q.length)
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}
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}
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return ''
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}
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/** 跳转微信 OAuth（仅非模拟环境） */
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export function redirectToWechatOAuth () {
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const uri = encodeURIComponent(wxRedirectUri)
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window.location.href =
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`https://open.weixin.qq.com/connect/oauth2/authorize?appid=${wxAppId}&redirect_uri=${uri}&response_type=code&scope=snsapi_base#wechat_redirect`
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}
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/**
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* 微信 OAuth：开发环境用模拟 openid，生产环境走微信授权
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* @param {Object} options
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* @param {Function} options.authorizeApi (data) => Promise
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* @param {Function} options.onSuccess (res) => void
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* @param {string} [options.fallbackCode] 页面内缓存的 code
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*/
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export function runWechatOAuthFlow ({ authorizeApi, onSuccess, fallbackCode = '' }) {
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if (typeof window === 'undefined') return
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const handleAuthorize = (code) => {
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if (!code) return
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authorizeApi({ code }).then(res => {
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if (res.code === 200) onSuccess(res)
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})
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}
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if (devWechatMock.enabled) {
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const mockOpenId = uni.getStorageSync('openId') || devWechatMock.openId
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uni.setStorageSync('openId', mockOpenId)
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handleAuthorize(devWechatMock.mockCode)
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return
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}
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const code = extractOAuthCodeFromUrl() || fallbackCode
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if (code) {
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handleAuthorize(code)
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return
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}
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redirectToWechatOAuth()
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}
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