product-uniapp/utils/auth.js

/**
 * 静默登录 - 重新获取 token
 * 完全静默，不会跳转登录页
 * @returns {Promise<{success: boolean, token?: string, error?: string}>}
 */
export function silentLogin() {
	return new Promise((resolve, reject) => {
		uni.login({
			provider: 'weixin',
			success: (loginRes) => {
				console.log('Silent login code:', loginRes.code);
				// 调用后端接口获取新 token
				uni.request({
					url: 'https://bsh.info.yw.hnzhwlkj.cn/miniapp/login',
					method: 'POST',
					data: {
						code: loginRes.code
					},
					header: {
						'content-type': 'application/x-www-form-urlencoded',
						'Fdesk-Language': uni.getStorageSync('i18locale') || 'zh',
						'Fdesk-Login-Type': 'wechat',
						'Fdesk-System-Code': 'wechat'
					},
					success: (res) => {
						if (res.data.code == 200) {
							const { token, openid } = res.data.data;
							// 更新本地存储
							uni.setStorageSync('token', token);
							uni.setStorageSync('openid', openid);
							console.log('Silent login success, new token obtained');
							resolve({ success: true, token });
						} else {
							console.error('Silent login failed:', res.data.msg);
							// 不跳转登录页，只返回失败状态
							resolve({ success: false, error: res.data.msg });
						}
					},
					fail: (err) => {
						console.error('Silent login request failed:', err);
						// 不跳转登录页，只返回失败状态
						resolve({ success: false, error: err.errMsg });
					}
				});
			},
			fail: (err) => {
				console.error('uni.login failed:', err);
				// 不跳转登录页，只返回失败状态
				resolve({ success: false, error: err.errMsg });
			}
		});
	});
}

/**
 * 清除认证信息并跳转登录页
 */
export function clearAuthAndRedirect() {
	// 清除登录信息
	uni.removeStorageSync('token');
	uni.removeStorageSync('openid');
	uni.removeStorageSync('is_login');

	// 跳转到登录页
	uni.reLaunch({
		url: '/pages/login/index'
	});
}

/**
 * 检查是否正在登录中（防止并发重复登录）
 */
let isLoggingIn = false;
let loginPromise = null;

export function loginOnce() {
	if (isLoggingIn) {
		return loginPromise;
	}

	isLoggingIn = true;
	loginPromise = silentLogin().finally(() => {
		isLoggingIn = false;
		loginPromise = null;
	});

	return loginPromise;
}