import {Directive, OptionDefinition} from '../../Directive'
import {Inject, Injectable} from '../../../di'
import {Queue} from '../../../support/bus'
import {Queueables} from '../../../service/Queueables'

@Injectable()
export class WorkDirective extends Directive {
    @Inject()
    protected readonly queue!: Queue

    @Inject()
    protected readonly queueables!: Queueables

    getDescription(): string {
        return 'pop a single item from the queue and execute it'
    }

    getKeywords(): string | string[] {
        return 'queue-work'
    }

    getOptions(): OptionDefinition[] {
        return []
    }

    async handle(): Promise<void> {
        try {
            const queueable = await this.queue.pop()
            if ( !queueable ) {
                this.info('There are no items in the queue.')
                return
            }

            this.info(`Fetched 1 item from the queue`)
            await queueable.execute()
            this.success('Executed 1 item from the queue')
        } catch (e: unknown) {
            this.error('Failed to execute queueable:')
            this.error(e)
            process.exitCode = 1
        }
    }
}