/**
 * 登录前修复 dcloud_appid 为空数组的用户
 * uni-id 只放行「字段不存在」或「数组包含当前 appid」的账号，空数组会被当成用户不存在
 */

const LOGIN_APP_IDS = ["__UNI__EB80D26", "__UNI__8BFD66E", "__UNI__0F0703D"];

function normalizeAccount(value) {
	if (typeof value === "number") return String(value).trim();
	if (typeof value === "string") return value.trim();
	return "";
}

module.exports = [{
	id: "fixEmptyDcloudAppid",
	regExp: [
		"^user/pub/login(.*)"
	],
	description: "登录前把 dcloud_appid 为空数组的用户补上三个应用的 appid",
	index: 201,
	mode: "onActionExecuting",
	enable: true,
	main: async function(event) {
		let { data = {}, util } = event;
		let { db, _ } = util;
		const username = normalizeAccount(data.username);
		const mobile = normalizeAccount(data.mobile);
		const email = normalizeAccount(data.email);
		const whereList = [];
		if (username) {
			whereList.push({ username }, { mobile: username }, { email: username });
		}
		if (mobile && mobile !== username) whereList.push({ mobile });
		if (email && email !== username) whereList.push({ email });
		if (whereList.length === 0) return { code: 0 };

		const whereJson = whereList.length === 1 ? whereList[0] : _.or(whereList);
		const userRes = await db.collection("uni-id-users").where(whereJson).field({
			dcloud_appid: true
		}).limit(10).get();
		const users = (userRes.data || []).filter(user => Array.isArray(user.dcloud_appid) && user.dcloud_appid.length === 0);
		for (let i = 0; i < users.length; i++) {
			await db.collection("uni-id-users").doc(users[i]._id).update({
				dcloud_appid: LOGIN_APP_IDS
			});
		}
		return { code: 0 };
	}
}]