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import { h, createContext } from 'preact';
import { useEffect, useContext } from 'preact/hooks';
import { useDispatcher, fetchJSON } from './actions';
const initialState = { user: null, discussions: [] };
const reducer = (action) => {
switch (action.type) {
case 'login': {
const { username, password } = action;
return fetchJSON('/discdag/login', 'POST', { username, password })
.then(() => reducer({ type: 'refresh' }));
}
case 'logout': {
return fetchJSON('/discdag/logout', 'POST')
.then(() => reducer({ type: 'refresh' }));
}
case 'refresh': {
return fetchJSON('/discdag/list')
.then(({ user, discussions }) =>
(state) => ({ ...state, user, discussions })
);
}
default:
return undefined;
}
};
const UserContext = createContext(initialState);
export const UserContainer = ({ children }) => {
const { state, dispatch, DispatchProvider } = useDispatcher({
reducer,
initialState,
});
useEffect(() => dispatch({ type: 'refresh' }), []);
return (
<DispatchProvider>
<UserContext.Provider value={state}>
{children}
</UserContext.Provider>
</DispatchProvider>
);
};
export const useUser = () => useContext(UserContext);
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