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/*
This file is part of GNU Taler
(C) 2022-2024 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/>
*/
import { ObservabilityEvent, TalerAuthenticationHttpClient, TalerBankConversionHttpClient, TalerCoreBankHttpClient, TalerMerchantInstanceHttpClient, TalerMerchantManagementHttpClient } from "@gnu-taler/taler-util";
type Listener<Event> = (e: Event) => void;
type Unsuscriber = () => void;
export type Subscriber<Event> = (fn: Listener<Event>) => Unsuscriber;
export class ActiviyTracker<Event> {
private observers = new Array<Listener<Event>>();
constructor() {
this.notify = this.notify.bind(this)
this.subscribe = this.subscribe.bind(this)
}
notify(data: Event): void {
this.observers.forEach((observer) => observer(data))
}
subscribe(func: Listener<Event>): Unsuscriber {
this.observers.push(func);
return () => {
this.observers.forEach((observer, index) => {
if (observer === func) {
this.observers.splice(index, 1);
}
});
};
}
}
/**
* build http client with cache breaker due to SWR
* @param url
* @returns
*/
export interface APIClient<T, C> {
getRemoteConfig(): Promise<C>;
VERSION: string;
lib: T,
onActivity: Subscriber<ObservabilityEvent>;
cancelRequest(id: string): void;
}
export interface MerchantLib {
instance: TalerMerchantManagementHttpClient;
authenticate: TalerAuthenticationHttpClient;
subInstanceApi: (instanceId: string) => MerchantLib;
}
export interface BankLib {
bank: TalerCoreBankHttpClient;
conversion: TalerBankConversionHttpClient;
auth: (user: string) => TalerAuthenticationHttpClient;
}
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