import { ref } from "vue";
import { defineStore } from "pinia";
import { miniAppLogin, logout as logoutApi, refreshToken as refreshTokenApi } from "@/utils/auth";

/**
 * JWT 认证状态管理
 * 管理小程序的 token 和认证状态
 */
export default defineStore("authStore", () => {
	// Token 状态
	const accessToken = ref(uni.getStorageSync("accessToken") || "");
	const refreshToken = ref(uni.getStorageSync("refreshToken") || "");
	const jwtUserInfo = ref(uni.getStorageSync("jwtUserInfo") || null);
	const isLoggingIn = ref(false);
	const isRefreshing = ref(false);

	/**
	 * 小程序授权登录
	 * @param {Object} params - 登录参数 { authCode, platform, corpId }
	 * @returns {Promise}
	 */
	async function login({ authCode, platform = "alipay", corpId }) {
		if (isLoggingIn.value) {
			return { success: false, message: "正在登录中..." };
		}

		isLoggingIn.value = true;

		try {
			const result = await miniAppLogin({ authCode, platform, corpId });

			if (result.success && result.data) {
				// 保存 token 和用户信息
				accessToken.value = result.data.accessToken;
				refreshToken.value = result.data.refreshToken;
				jwtUserInfo.value = result.data.userInfo;

				// 持久化到 storage
				uni.setStorageSync("accessToken", result.data.accessToken);
				uni.setStorageSync("refreshToken", result.data.refreshToken);
				uni.setStorageSync("jwtUserInfo", result.data.userInfo);

				return { success: true, message: result.message, data: result.data };
			} else {
				return { success: false, message: result.message || "登录失败" };
			}
		} catch (error) {
			console.error("登录失败:", error);
			return { success: false, message: "登录失败，请稍后再试" };
		} finally {
			isLoggingIn.value = false;
		}
	}

	/**
	 * 刷新 Token
	 * @returns {Promise<string|null>} 返回新的 accessToken，失败返回 null
	 */
	async function refreshAccessToken() {
		if (!refreshToken.value) {
			console.warn("没有 refreshToken，无法刷新");
			return null;
		}

		if (isRefreshing.value) {
			// 避免并发刷新，等待一下
			await new Promise((resolve) => setTimeout(resolve, 100));
			return accessToken.value;
		}

		isRefreshing.value = true;

		try {
			const result = await refreshTokenApi(refreshToken.value);

			if (result.success && result.data) {
				// 更新 token
				accessToken.value = result.data.accessToken;
				uni.setStorageSync("accessToken", result.data.accessToken);

				return result.data.accessToken;
			} else {
				// 刷新失败，清除登录状态
				console.error("Token 刷新失败:", result.message);
				clearAuth();
				return null;
			}
		} catch (error) {
			console.error("Token 刷新异常:", error);
			clearAuth();
			return null;
		} finally {
			isRefreshing.value = false;
		}
	}

	/**
	 * 退出登录
	 */
	async function logout() {
		try {
			if (accessToken.value) {
				await logoutApi(accessToken.value);
			}
		} catch (error) {
			console.error("退出登录请求失败:", error);
		} finally {
			clearAuth();
		}
	}

	/**
	 * 清除认证信息
	 */
	function clearAuth() {
		accessToken.value = "";
		refreshToken.value = "";
		jwtUserInfo.value = null;

		uni.removeStorageSync("accessToken");
		uni.removeStorageSync("refreshToken");
		uni.removeStorageSync("jwtUserInfo");
	}

	/**
	 * 获取认证状态
	 */
	const isAuthenticated = () => !!accessToken.value;

	return {
		accessToken,
		refreshToken,
		jwtUserInfo,
		isLoggingIn,
		isRefreshing,

		login,
		logout,
		refreshAccessToken,
		clearAuth,
		isAuthenticated,
	};
});