Created
December 14, 2018 19:46
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MobX enhanced logic for Snackbar notifications
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// - 1 - | |
import { just, Maybe, nothing } from 'maybeasy'; | |
import { action, computed, observable } from 'mobx'; | |
import { Alert } from './types'; | |
class AlertsStore { | |
// - 2 - | |
@observable | |
alerts: Alert[] = []; | |
// - 3 - | |
@computed | |
get current(): Maybe<Alert> { | |
return this.alerts.length === 0 ? nothing() : just(this.alerts[0]); | |
} | |
// - 4 - | |
@action | |
hide = () => { | |
if (this.alerts.length > 0) { | |
this.alerts[0].display = false; | |
} | |
}; | |
// - 5 - | |
@action | |
process = () => { | |
this.alerts = this.alerts.slice(1); | |
}; | |
// - 6 - | |
@action | |
push = (alert: Alert) => { | |
this.hide(); | |
this.alerts.push({ ...alert, display: true }); | |
}; | |
} | |
// - 7 - | |
const alertsStore = new AlertsStore(); | |
export default alertsStore; |
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