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

export type Session = Envelope & {
    state: 'new' | 'negotiating' | 'authenticating' | 'established' | 'finishing' | 'finished' | 'failed'

    encryptionOptions?: Array<string>
    compressionOptions?: Array<string>
    schemeOptions?: Array<string>

    encryption?: string
    compression?: string
    scheme?: string

    authentication?: Omit<Authentication, 'scheme'>
    reason?: Reason
}

export const isSession = (value: Envelope): value is Session => {
    return 'state' in value
}