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import React, { useCallback } from "react";
import { Alert } from "reactstrap";
import without from "lodash/without";
import concat from "lodash/concat";
import {
alertService,
AlertInfoEx,
kAlertHostId,
AlertInfo,
} from "./alert-service";
import { useTranslation } from "react-i18next";
interface AutoCloseAlertProps {
alert: AlertInfo;
close: () => void;
}
export const AutoCloseAlert: React.FC<AutoCloseAlertProps> = (props) => {
const { alert } = props;
const { dismissTime } = alert;
const { t } = useTranslation();
React.useEffect(() => {
const tag =
dismissTime === "never"
? null
: typeof dismissTime === "number"
? window.setTimeout(props.close, dismissTime)
: window.setTimeout(props.close, 5000);
return () => {
if (tag != null) {
window.clearTimeout(tag);
}
};
}, [dismissTime, props.close]);
return (
<Alert className="m-3" color={alert.type ?? "primary"} toggle={props.close}>
{(() => {
const { message } = alert;
if (typeof message === "function") {
const Message = message;
return <Message />;
} else if (typeof message === "object" && message.type === "i18n") {
return t(message.key);
} else return alert.message;
})()}
</Alert>
);
};
// oh what a bad name!
interface AlertInfoExEx extends AlertInfoEx {
close: () => void;
}
export const AlertHost: React.FC = () => {
const [alerts, setAlerts] = React.useState<AlertInfoExEx[]>([]);
// react guarantee that state setters are stable, so we don't need to add it to dependency list
const consume = useCallback((alert: AlertInfoEx): void => {
const alertEx: AlertInfoExEx = {
...alert,
close: () => {
setAlerts((oldAlerts) => {
return without(oldAlerts, alertEx);
});
},
};
setAlerts((oldAlerts) => {
return concat(oldAlerts, alertEx);
});
}, []);
React.useEffect(() => {
alertService.registerConsumer(consume);
return () => {
alertService.unregisterConsumer(consume);
};
}, [consume]);
return (
<div id={kAlertHostId} className="alert-container">
{alerts.map((alert) => {
return (
<AutoCloseAlert key={alert.id} alert={alert} close={alert.close} />
);
})}
</div>
);
};
export default AlertHost;
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