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qms/lib/context.tsx
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import React, { createContext, useContext, useState, useEffect, useCallback } from 'react'
import { AppUser } from '@/types'
interface AppContextValue {
user: AppUser | null
loading: boolean
login: (email: string, password: string) => Promise<string | null>
logout: () => Promise<void>
refreshUser: () => Promise<void>
}
const AppContext = createContext<AppContextValue>({} as AppContextValue)
export function AppProvider({ children }: { children: React.ReactNode }) {
const [user, setUser] = useState<AppUser | null>(null)
const [loading, setLoading] = useState(true)
const refreshUser = useCallback(async () => {
try {
const res = await fetch('/api/auth/me')
if (res.ok) {
const { user } = await res.json()
setUser(user)
} else {
setUser(null)
}
} catch {
setUser(null)
}
}, [])
useEffect(() => {
refreshUser().finally(() => setLoading(false))
}, [refreshUser])
const login = async (email: string, password: string): Promise<string | null> => {
const res = await fetch('/api/auth/login', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ email, password }),
})
const data = await res.json()
if (res.ok) {
setUser(data.user)
return null
}
return data.error || 'Login failed'
}
const logout = async () => {
await fetch('/api/auth/me', { method: 'DELETE' })
setUser(null)
}
return (
<AppContext.Provider value={{ user, loading, login, logout, refreshUser }}>
{children}
</AppContext.Provider>
)
}
export const useApp = () => useContext(AppContext)