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import React from "react";
import without from "lodash/without";
import { useTranslation } from "react-i18next";
import { Alert } from "react-bootstrap";
import {
alertService,
AlertInfoEx,
kAlertHostId,
AlertInfo,
} from "@/services/alert";
import { convertI18nText } from "@/common";
interface AutoCloseAlertProps {
alert: AlertInfo;
close: () => void;
}
export const AutoCloseAlert: React.FC<AutoCloseAlertProps> = (props) => {
const { alert, close } = props;
const { dismissTime } = alert;
const { t } = useTranslation();
const timerTag = React.useRef<number | null>(null);
const closeHandler = React.useRef<(() => void) | null>(null);
React.useEffect(() => {
closeHandler.current = close;
}, [close]);
React.useEffect(() => {
const tag =
dismissTime === "never"
? null
: typeof dismissTime === "number"
? window.setTimeout(() => closeHandler.current?.(), dismissTime)
: window.setTimeout(() => closeHandler.current?.(), 5000);
timerTag.current = tag;
return () => {
if (tag != null) {
window.clearTimeout(tag);
}
};
}, [dismissTime]);
const cancelTimer = (): void => {
const { current: tag } = timerTag;
if (tag != null) {
window.clearTimeout(tag);
}
};
return (
<Alert
className="m-3"
variant={alert.type ?? "primary"}
onClick={cancelTimer}
onClose={close}
dismissible
>
{(() => {
const { message } = alert;
if (typeof message === "function") {
const Message = message;
return <Message />;
} else return convertI18nText(message, t);
})()}
</Alert>
);
};
const AlertHost: React.FC = () => {
const [alerts, setAlerts] = React.useState<AlertInfoEx[]>([]);
// react guarantee that state setters are stable, so we don't need to add it to dependency list
React.useEffect(() => {
const consume = (alert: AlertInfoEx): void => {
setAlerts((old) => [...old, alert]);
};
alertService.registerConsumer(consume);
return () => {
alertService.unregisterConsumer(consume);
};
}, []);
return (
<div id={kAlertHostId} className="alert-container">
{alerts.map((alert) => {
return (
<AutoCloseAlert
key={alert.id}
alert={alert}
close={() => {
setAlerts((old) => without(old, alert));
}}
/>
);
})}
</div>
);
};
export default AlertHost;
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