150 lines
3.9 KiB
TypeScript
Executable File
150 lines
3.9 KiB
TypeScript
Executable File
"use client"
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import { createContext, useContext, useEffect, useState, type ReactNode } from "react"
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import { useRouter } from "next/navigation"
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import { validateToken } from "@/lib/api"
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// 安全的localStorage访问方法
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const safeLocalStorage = {
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getItem: (key: string): string | null => {
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if (typeof window !== 'undefined') {
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return localStorage.getItem(key)
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}
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return null
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},
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setItem: (key: string, value: string): void => {
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if (typeof window !== 'undefined') {
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localStorage.setItem(key, value)
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}
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},
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removeItem: (key: string): void => {
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if (typeof window !== 'undefined') {
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localStorage.removeItem(key)
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}
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}
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}
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interface User {
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id: number;
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username: string;
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account?: string;
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avatar?: string;
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}
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interface AuthContextType {
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isAuthenticated: boolean
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token: string | null
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user: User | null
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login: (token: string, userData: User) => void
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logout: () => void
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updateToken: (newToken: string) => void
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}
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// 创建默认上下文
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const AuthContext = createContext<AuthContextType>({
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isAuthenticated: false,
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token: null,
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user: null,
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login: () => {},
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logout: () => {},
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updateToken: () => {}
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})
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export const useAuth = () => useContext(AuthContext)
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interface AuthProviderProps {
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children: ReactNode
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}
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export function AuthProvider({ children }: AuthProviderProps) {
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// 避免在服务端渲染时设置初始状态
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const [token, setToken] = useState<string | null>(null)
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const [user, setUser] = useState<User | null>(null)
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const [isAuthenticated, setIsAuthenticated] = useState(false)
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// 初始页面加载时显示为false，避免在服务端渲染和客户端水合时不匹配
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const [isLoading, setIsLoading] = useState(false)
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const [isInitialized, setIsInitialized] = useState(false)
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const router = useRouter()
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// 初始化认证状态
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useEffect(() => {
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// 仅在客户端执行初始化
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setIsLoading(true)
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const initAuth = async () => {
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try {
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const storedToken = safeLocalStorage.getItem("token")
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if (storedToken) {
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// 验证token是否有效
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const isValid = await validateToken()
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if (isValid) {
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// 从localStorage获取用户信息
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const userDataStr = safeLocalStorage.getItem("user")
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if (userDataStr) {
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const userData = JSON.parse(userDataStr) as User
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setToken(storedToken)
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setUser(userData)
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setIsAuthenticated(true)
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} else {
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// token有效但没有用户信息，清除token
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handleLogout()
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}
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} else {
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// token无效，清除
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handleLogout()
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}
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}
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} catch (error) {
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console.error("验证token时出错:", error)
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handleLogout()
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} finally {
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setIsLoading(false)
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setIsInitialized(true)
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}
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}
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initAuth()
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}, []) // 空依赖数组，仅在组件挂载时执行一次
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const handleLogout = () => {
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safeLocalStorage.removeItem("token")
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safeLocalStorage.removeItem("user")
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setToken(null)
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setUser(null)
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setIsAuthenticated(false)
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}
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const login = (newToken: string, userData: User) => {
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safeLocalStorage.setItem("token", newToken)
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safeLocalStorage.setItem("user", JSON.stringify(userData))
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setToken(newToken)
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setUser(userData)
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setIsAuthenticated(true)
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}
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const logout = () => {
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handleLogout()
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// 登出后不强制跳转到登录页
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// router.push("/login")
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}
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// 用于刷新 token 的方法
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const updateToken = (newToken: string) => {
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safeLocalStorage.setItem("token", newToken)
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setToken(newToken)
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}
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return (
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<AuthContext.Provider value={{ isAuthenticated, token, user, login, logout, updateToken }}>
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{isLoading && isInitialized ? (
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<div className="flex h-screen w-screen items-center justify-center">加载中...</div>
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) : (
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children
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)}
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</AuthContext.Provider>
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)
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}
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