bigbuffet-rw/app/soapbox/reducers/auth.js
2021-03-24 14:15:36 -05:00

87 lines
2.5 KiB
JavaScript

import {
AUTH_APP_CREATED,
AUTH_LOGGED_IN,
AUTH_APP_AUTHORIZED,
AUTH_LOGGED_OUT,
SWITCH_ACCOUNT,
VERIFY_CREDENTIALS_SUCCESS,
VERIFY_CREDENTIALS_FAIL,
} from '../actions/auth';
import { Map as ImmutableMap, fromJS } from 'immutable';
const defaultState = ImmutableMap({
app: ImmutableMap(),
tokens: ImmutableMap(),
me: null,
});
const localState = fromJS(JSON.parse(localStorage.getItem('soapbox:auth')));
const initialState = defaultState.merge(localState);
const importToken = (state, token) => {
return state.setIn(['tokens', token.access_token], fromJS(token));
};
const importCredentials = (state, token, account) => {
return state.withMutations(state => {
state.setIn(['users', account.id], ImmutableMap({
id: account.id,
access_token: token,
}));
state.setIn(['tokens', token, 'account'], account.id);
state.update('me', null, me => me || account.id);
});
};
// If `me` doesn't match an existing user, attempt to shift it.
const maybeShiftMe = state => {
const users = state.get('users', ImmutableMap());
const me = state.get('me');
if (!users.get(me)) {
return state.set('me', users.first(ImmutableMap()).get('id'));
} else {
return state;
}
};
const importFailedToken = (state, token) => {
return state.withMutations(state => {
state.update('tokens', ImmutableMap(), tokens => tokens.delete(token));
state.update('users', ImmutableMap(), users => users.filterNot(user => user.get('access_token') === token));
maybeShiftMe(state);
});
};
const reducer = (state, action) => {
switch(action.type) {
case AUTH_APP_CREATED:
return state.set('app', fromJS(action.app));
case AUTH_APP_AUTHORIZED:
return state.update('app', ImmutableMap(), app => app.merge(fromJS(action.app)));
case AUTH_LOGGED_IN:
return importToken(state, action.token);
case AUTH_LOGGED_OUT:
return state.set('user', ImmutableMap());
case VERIFY_CREDENTIALS_SUCCESS:
return importCredentials(state, action.token, action.account);
case VERIFY_CREDENTIALS_FAIL:
return importFailedToken(state, action.token);
case SWITCH_ACCOUNT:
return state.set('me', action.accountId);
default:
return state;
}
};
export default function auth(oldState = initialState, action) {
const state = reducer(oldState, action);
localStorage.setItem('soapbox:auth', JSON.stringify(state.toJS()));
// Reload the page when the current user changes.
if (state.get('me') !== oldState.get('me')) {
location.reload();
}
return state;
};