62 lines
1.3 KiB
TypeScript
62 lines
1.3 KiB
TypeScript
import * as SecureStore from 'expo-secure-store';
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import {
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createContext,
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ReactNode,
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useContext,
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useEffect,
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useState,
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} from 'react';
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type User = {
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username: string;
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};
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type AuthContextType = {
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user: User | null;
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login: (username: string) => Promise<void>;
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logout: () => Promise<void>;
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loading: boolean;
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};
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const AuthContext = createContext<AuthContextType | null>(null);
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export function AuthProvider({ children }: { children: ReactNode }) {
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const [user, setUser] = useState<User | null>(null);
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const [loading, setLoading] = useState(true);
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useEffect(() => {
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SecureStore.getItemAsync('user').then((storedUser) => {
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if (storedUser) {
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setUser(JSON.parse(storedUser));
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}
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setLoading(false);
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});
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}, []);
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const login = async (username: string) => {
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const userData = { username };
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setUser(userData);
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await SecureStore.setItemAsync('user', JSON.stringify(userData));
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};
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const logout = async () => {
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setUser(null);
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await SecureStore.deleteItemAsync('user');
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};
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return (
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<AuthContext.Provider value={{ user, login, logout, loading }}>
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{children}
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</AuthContext.Provider>
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);
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}
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export function useAuth() {
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const context = useContext(AuthContext);
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if (!context) {
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throw new Error('useAuth must be used within AuthProvider');
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}
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return context;
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}
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