59 lines
1.4 KiB
TypeScript
59 lines
1.4 KiB
TypeScript
import { Record as ImmutableRecord, List as ImmutableList } from 'immutable';
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import {
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ALERT_SHOW,
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ALERT_DISMISS,
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ALERT_CLEAR,
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} from '../actions/alerts';
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const AlertRecord = ImmutableRecord({
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key: 0,
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title: '',
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message: '',
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severity: 'info',
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actionLabel: '',
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actionLink: '',
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action: () => {},
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dismissAfter: 6000 as number | false,
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});
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import type { AnyAction } from 'redux';
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type PlainAlert = Record<string, any>;
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type Alert = ReturnType<typeof AlertRecord>;
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type State = ImmutableList<Alert>;
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/** Get next key based on last alert. */
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const getNextKey = (state: State): number => {
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const last = state.last();
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return last ? last.key + 1 : 0;
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};
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/** Import the alert. */
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const importAlert = (state: State, alert: PlainAlert): State => {
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const key = getNextKey(state);
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const record = AlertRecord({ ...alert, key });
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return state.push(record);
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};
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/** Delete an alert by its key. */
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const deleteAlert = (state: State, alert: PlainAlert): State => {
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return state.filterNot(item => item.key === alert.key);
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};
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export default function alerts(state: State = ImmutableList<Alert>(), action: AnyAction): State {
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switch (action.type) {
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case ALERT_SHOW:
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return importAlert(state, action);
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case ALERT_DISMISS:
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return deleteAlert(state, action.alert);
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case ALERT_CLEAR:
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return state.clear();
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default:
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return state;
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}
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}
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export {
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Alert,
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};
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