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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';
interface AutoCloseAlertProps {
alert: AlertInfo;
close: () => void;
}
export const AutoCloseAlert: React.FC<AutoCloseAlertProps> = (props) => {
const { alert } = props;
React.useEffect(() => {
const tag = window.setTimeout(props.close, 5000);
return () => window.clearTimeout(tag);
}, [props.close]);
return (
<Alert className="m-3" color={alert.type ?? 'primary'} toggle={props.close}>
{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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