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import React from 'react';
import { useContext, useCallback } from 'react';
import { useApolloClient } from '@apollo/react-hooks';
import { Redirect } from 'react-router-dom';
import {
useMeQuery,
User,
useSignInMutation,
useSignUpMutation,
} from '../graphql/types';
import { useCacheService } from './cache.service';
const MyContext = React.createContext<User | null>(null);
export const useMe = () => {
return useContext(MyContext);
};
export const withAuth = <P extends object>(
Component: React.ComponentType<P>
) => {
return (props: any) => {
if (!isSignedIn()) {
if (props.history.location.pathname === '/sign-in') {
return null;
}
return <Redirect to="/sign-in" />;
}
const signOut = useSignOut();
const { data, error, loading } = useMeQuery();
useCacheService();
if (loading) return null;
if (data === undefined) return null;
if (error || !data.me) {
signOut();
return <Redirect to="/sign-in" />;
}
return (
<MyContext.Provider value={data.me}>
<Component {...(props as P)} />
</MyContext.Provider>
);
};
};
export const useSignIn = useSignInMutation;
export const useSignUp = useSignUpMutation;
export const useSignOut = () => {
const client = useApolloClient();
return useCallback(() => {
// "expires" represents the lifespan of a cookie. Beyond that date the cookie will
// be deleted by the browser. "expires" cannot be viewed from "document.cookie"
document.cookie = `authToken=;expires=${new Date(0)}`;
// Clear cache
return client.clearStore();
}, [client]);
};
export const isSignedIn = () => {
return /authToken=.+(;|$)/.test(document.cookie);
};
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