import type { Envelope } from './envelope.ts'
import type { Reason } from './reason.ts'

export type FailedNotification = {
    event: 'failed'
    reason: Reason
}

export type CommonNotification = {
    // The official documentation is not up to date, so we need to check the source code
    // https://github.com/takenet/lime-csharp/blob/master/src/Lime.Protocol/Notification.cs#L47
    event: 'accepted' | 'consumed' | 'dispatched' | 'received' | 'deleted'
}

export type Notification = Envelope & (FailedNotification | CommonNotification)

export const isNotification = (envelope: Envelope): envelope is Notification =>
    'event' in envelope && typeof envelope.event === 'string'