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|
import {
canonicalizeBaseUrl,
TalerConfigResponse,
} from "@gnu-taler/taler-util";
import { Fragment, h, VNode } from "preact";
import { useEffect, useState } from "preact/hooks";
import { ErrorMessage } from "../components/ErrorMessage.js";
import {
Input,
LightText,
SubTitle,
Title,
WarningBox,
} from "../components/styled/index.js";
import { useTranslationContext } from "../context/translation.js";
import { Button } from "../mui/Button.js";
export interface Props {
initialValue?: string;
expectedCurrency?: string;
onCancel: () => Promise<void>;
onVerify: (s: string) => Promise<TalerConfigResponse | undefined>;
onConfirm: (url: string) => Promise<string | undefined>;
withError?: string;
}
function useEndpointStatus<T>(
endpoint: string,
onVerify: (e: string) => Promise<T>,
): {
loading: boolean;
error?: string;
endpoint: string;
result: T | undefined;
updateEndpoint: (s: string) => void;
} {
const [value, setValue] = useState<string>(endpoint);
const [dirty, setDirty] = useState(false);
const [loading, setLoading] = useState(false);
const [result, setResult] = useState<T | undefined>(undefined);
const [error, setError] = useState<string | undefined>(undefined);
const [handler, setHandler] = useState<number | undefined>(undefined);
useEffect(() => {
if (!value) return;
window.clearTimeout(handler);
const h = window.setTimeout(async () => {
setDirty(true);
setLoading(true);
try {
const url = canonicalizeBaseUrl(value);
const result = await onVerify(url);
setResult(result);
setError(undefined);
setLoading(false);
} catch (e) {
const errorMessage =
e instanceof Error ? e.message : `unknown error: ${e}`;
setError(errorMessage);
setLoading(false);
setResult(undefined);
}
}, 500);
setHandler(h);
}, [value, setHandler, onVerify]);
return {
error: dirty ? error : undefined,
loading: loading,
result: result,
endpoint: value,
updateEndpoint: setValue,
};
}
export function ExchangeSetUrlPage({
initialValue,
expectedCurrency,
onCancel,
onVerify,
onConfirm,
}: Props): VNode {
const { i18n } = useTranslationContext();
const { loading, result, endpoint, updateEndpoint, error } =
useEndpointStatus(initialValue ?? "", onVerify);
const [confirmationError, setConfirmationError] = useState<
string | undefined
>(undefined);
return (
<Fragment>
<section>
{!expectedCurrency ? (
<Title>
<i18n.Translate>Add new exchange</i18n.Translate>
</Title>
) : (
<SubTitle>
<i18n.Translate>Add exchange for {expectedCurrency}</i18n.Translate>
</SubTitle>
)}
{!result && (
<LightText>
<i18n.Translate>
Enter the URL of an exchange you trust.
</i18n.Translate>
</LightText>
)}
{result && (
<LightText>
<i18n.Translate>
An exchange has been found! Review the information and click next
</i18n.Translate>
</LightText>
)}
{result && expectedCurrency && expectedCurrency !== result.currency && (
<WarningBox>
<i18n.Translate>
This exchange doesn't match the expected currency
<b>{expectedCurrency}</b>
</i18n.Translate>
</WarningBox>
)}
{error && (
<ErrorMessage
title={
<i18n.Translate>Unable to verify this exchange</i18n.Translate>
}
description={error}
/>
)}
{confirmationError && (
<ErrorMessage
title={<i18n.Translate>Unable to add this exchange</i18n.Translate>}
description={confirmationError}
/>
)}
<p>
<Input invalid={!!error}>
<label>URL</label>
<input
type="text"
placeholder="https://"
value={endpoint}
onInput={(e) => updateEndpoint(e.currentTarget.value)}
/>
</Input>
{loading && (
<div>
<i18n.Translate>loading</i18n.Translate>...
</div>
)}
{result && !loading && (
<Fragment>
<Input>
<label>
<i18n.Translate>Version</i18n.Translate>
</label>
<input type="text" disabled value={result.version} />
</Input>
<Input>
<label>
<i18n.Translate>Currency</i18n.Translate>
</label>
<input type="text" disabled value={result.currency} />
</Input>
</Fragment>
)}
</p>
</section>
<footer>
<Button variant="contained" color="secondary" onClick={onCancel}>
<i18n.Translate>Cancel</i18n.Translate>
</Button>
<Button
variant="contained"
disabled={
!result ||
!!error ||
(!!expectedCurrency && expectedCurrency !== result.currency)
}
onClick={() => {
const url = canonicalizeBaseUrl(endpoint);
return onConfirm(url).then((r) =>
r ? setConfirmationError(r) : undefined,
);
}}
>
<i18n.Translate>Next</i18n.Translate>
</Button>
</footer>
</Fragment>
);
}
|
