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Diffstat (limited to 'packages/merchant-backoffice-ui/src/context/backend.ts')
-rw-r--r-- | packages/merchant-backoffice-ui/src/context/backend.ts | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/packages/merchant-backoffice-ui/src/context/backend.ts b/packages/merchant-backoffice-ui/src/context/backend.ts new file mode 100644 index 000000000..9ef7bfdea --- /dev/null +++ b/packages/merchant-backoffice-ui/src/context/backend.ts @@ -0,0 +1,82 @@ +/* + This file is part of GNU Taler + (C) 2021 Taler Systems S.A. + + GNU Taler is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +/** +* +* @author Sebastian Javier Marchano (sebasjm) +*/ + +import { createContext, h, VNode } from 'preact' +import { useCallback, useContext, useState } from 'preact/hooks' +import { useBackendDefaultToken, useBackendURL } from '../hooks'; + +interface BackendContextType { + url: string; + token?: string; + triedToLog: boolean; + resetBackend: () => void; + clearAllTokens: () => void; + addTokenCleaner: (c: () => void) => void; + updateLoginStatus: (url: string, token?: string) => void; +} + +const BackendContext = createContext<BackendContextType>({ + url: '', + token: undefined, + triedToLog: false, + resetBackend: () => null, + clearAllTokens: () => null, + addTokenCleaner: () => null, + updateLoginStatus: () => null, +}) + +function useBackendContextState(defaultUrl?: string, initialToken?: string): BackendContextType { + const [url, triedToLog, changeBackend, resetBackend] = useBackendURL(defaultUrl); + const [token, _updateToken] = useBackendDefaultToken(initialToken); + const updateToken = (t?: string) => { + _updateToken(t) + } + + const tokenCleaner = useCallback(() => { updateToken(undefined) }, []) + const [cleaners, setCleaners] = useState([tokenCleaner]) + const addTokenCleaner = (c: () => void) => setCleaners(cs => [...cs, c]) + const addTokenCleanerMemo = useCallback((c: () => void) => { addTokenCleaner(c) }, [tokenCleaner]) + + const clearAllTokens = () => { + cleaners.forEach(c => c()) + for (let i = 0; i < localStorage.length; i++) { + const k = localStorage.key(i) + if (k && /^backend-token/.test(k)) localStorage.removeItem(k) + } + resetBackend() + } + + const updateLoginStatus = (url: string, token?: string) => { + changeBackend(url); + if (token) updateToken(token); + }; + + + return { url, token, triedToLog, updateLoginStatus, resetBackend, clearAllTokens, addTokenCleaner: addTokenCleanerMemo } +} + +export const BackendContextProvider = ({ children, defaultUrl, initialToken }: { children: any, defaultUrl?: string, initialToken?: string }): VNode => { + const value = useBackendContextState(defaultUrl, initialToken) + + return h(BackendContext.Provider, { value, children }); +} + +export const useBackendContext = (): BackendContextType => useContext(BackendContext); |