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/*
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/>
*/
/**
* Imports.
*/
import {
canonicalizeBaseUrl,
Logger,
URL,
codecForMerchantConfigResponse,
LibtoolVersion,
} from "@gnu-taler/taler-util";
import { InternalWalletState, MerchantInfo } from "../common.js";
import { readSuccessResponseJsonOrThrow } from "../index.js";
const logger = new Logger("taler-wallet-core:merchants.ts");
export async function getMerchantInfo(
ws: InternalWalletState,
merchantBaseUrl: string,
): Promise<MerchantInfo> {
const canonBaseUrl = canonicalizeBaseUrl(merchantBaseUrl);
const existingInfo = ws.merchantInfoCache[canonBaseUrl];
if (existingInfo) {
return existingInfo;
}
const configUrl = new URL("config", canonBaseUrl);
const resp = await ws.http.get(configUrl.href);
const configResp = await readSuccessResponseJsonOrThrow(
resp,
codecForMerchantConfigResponse(),
);
logger.info(
`merchant "${canonBaseUrl}" reports protocol ${configResp.version}"`,
);
const merchantInfo: MerchantInfo = {
supportsMerchantProtocolV1: !!LibtoolVersion.compare(
"1:0:0",
configResp.version,
)?.compatible,
supportsMerchantProtocolV2: !!LibtoolVersion.compare(
"2:0:0",
configResp.version,
)?.compatible,
};
ws.merchantInfoCache[canonBaseUrl] = merchantInfo;
return merchantInfo;
}
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