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/*
This file is part of GNU Taler
(C) 2022 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 { Amounts, TalerErrorDetail, TalerProtocolTimestamp } from "@gnu-taler/taler-util";
import { TalerError, WalletApiOperation } from "@gnu-taler/taler-wallet-core";
import { format, isFuture, parse } from "date-fns";
import { useState } from "preact/hooks";
import { useAsyncAsHook } from "../../hooks/useAsyncAsHook.js";
import { wxApi } from "../../wxApi.js";
import { Props, State } from "./index.js";
export function useComponentState(
{ amount: amountStr, onClose, onSuccess }: Props,
api: typeof wxApi,
): State {
const amount = Amounts.parseOrThrow(amountStr);
const [subject, setSubject] = useState<string | undefined>();
const [timestamp, setTimestamp] = useState<string | undefined>()
const [operationError, setOperationError] = useState<
TalerErrorDetail | undefined
>(undefined);
const hook = useAsyncAsHook(async () => {
const resp = await api.wallet.call(WalletApiOperation.PreparePeerPushPayment, {
amount: amountStr
})
return resp
})
if (!hook) {
return {
status: "loading",
error: undefined
}
}
if (hook.hasError) {
return {
status: "loading-uri",
error: hook
}
}
const { amountEffective, amountRaw } = hook.response
const debitAmount = Amounts.parseOrThrow(amountRaw)
const toBeReceived = Amounts.parseOrThrow(amountEffective)
let purse_expiration: TalerProtocolTimestamp | undefined = undefined
let timestampError: string | undefined = undefined;
const t = timestamp === undefined ? undefined : parse(timestamp, "dd/MM/yyyy", new Date())
if (t !== undefined) {
if (Number.isNaN(t.getTime())) {
timestampError = 'Should have the format "dd/MM/yyyy"'
} else {
if (!isFuture(t)) {
timestampError = 'Should be in the future'
} else {
purse_expiration = {
t_s: t.getTime() / 1000
}
}
}
}
async function accept(): Promise<void> {
if (!subject || !purse_expiration) return;
try {
const resp = await api.wallet.call(WalletApiOperation.InitiatePeerPushPayment, {
partialContractTerms: {
summary: subject,
amount: amountStr,
purse_expiration
},
});
onSuccess(resp.transactionId);
} catch (e) {
if (e instanceof TalerError) {
setOperationError(e.errorDetail);
}
console.error(e);
throw Error("error trying to accept");
}
}
const unableToCreate = !subject || Amounts.isZero(amount) || !purse_expiration
return {
status: "ready",
cancel: {
onClick: onClose,
},
subject: {
error: subject === undefined ? undefined : !subject ? "Can't be empty" : undefined,
value: subject ?? "",
onInput: async (e) => setSubject(e),
},
expiration: {
error: timestampError,
value: timestamp === undefined ? "" : timestamp,
onInput: async (e) => {
setTimestamp(e)
}
},
create: {
onClick: unableToCreate ? undefined : accept,
},
debitAmount,
toBeReceived,
error: undefined,
operationError,
};
}
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