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import React, {
useState, useEffect, useContext, createContext
} from 'react';
import { User } from 'which-types';
import { post, get } from '../requests';
interface ContextType {
user: User | null,
setUser: (user: User) => void;
login: (username: string, password: string, remember?: boolean) => Promise<boolean>;
logout: () => void;
isAuthenticated: () => boolean;
}
const authContext = createContext<ContextType>({
user: null,
setUser: () => {},
login: async () => false,
logout: () => {},
isAuthenticated: () => false
});
const useProvideAuth = () => {
const [user, setUser] = useState<User | null>(null);
const login: ContextType['login'] = (username, password, remember = true) => {
return post('/authentication', {
strategy: 'local',
username,
password
}).then(response => {
const me = response.data.user;
const token = response.data.accessToken;
setUser(me);
localStorage.setItem('userId', me._id);
localStorage.setItem('token', token);
if (!remember) localStorage.setItem('shouldClear', 'true');
return true;
}).catch(() => false);
};
const logout = () => {
setUser(null);
localStorage.removeItem('userId');
localStorage.removeItem('token');
};
const isAuthenticated = () => Boolean(user);
useEffect(() => {
if (localStorage.getItem('shouldClear')) {
localStorage.clear();
}
const userId = localStorage.getItem('userId');
if (userId) {
get(`/users/${userId}`).then(response => {
setUser(response.data);
});
}
}, []);
return {
user, setUser, login, logout, isAuthenticated
};
};
export const AuthProvider: React.FC = ({ children }) => {
const auth = useProvideAuth();
const { Provider } = authContext;
return <Provider value={auth}>{children}</Provider>;
};
export const useAuth = (): ContextType => {
return useContext(authContext);
};
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