import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';

import { RPCService, RPCSubscribeService } from '@loafer/ng-rpc';
import {
  DiscoverZone as MDDiscoverZone,
  DiscoverHost as MDDiscoverHost,
  DiscoverPort as MDDiscoverPort,
  DiscoverService as MDDiscoverService,
  Zone,
  Host,
  Port,
  Service,
} from '@overflow/commons-typescript/model/discovery';

import { DiscoverySubject, DiscoveryNotify } from '../core/discovery-subject';
import * as DiscoverStore from '../store/discover';
import { DiscoverySubscriber } from '../subscriber/discovery.subscriber';

@Injectable()
export class DiscoveryService {

  public constructor(
    private discoverySubscriber: DiscoverySubscriber,
    private rpcService: RPCService,
  ) {

  }

  public discoverZone(probeID: string, discoverZone: MDDiscoverZone): Observable<DiscoveryNotify> {
    const discoverySubject: DiscoverySubject = new DiscoverySubject();
    this.discoverySubscriber.setDiscoverySubject(discoverySubject);

    this.rpcService.send('DiscoveryService.discoverZone', probeID, discoverZone);

    return discoverySubject;
  }
  public discoverHost(probeID: string, zone: Zone, discoverHost: MDDiscoverHost): Observable<DiscoveryNotify> {
    const discoverySubject: DiscoverySubject = new DiscoverySubject();
    this.discoverySubscriber.setDiscoverySubject(discoverySubject);

    this.rpcService.send('DiscoveryService.discoverHost', probeID, zone, discoverHost);

    return discoverySubject;
  }
  public discoverPort(probeID: string, host: Host, discoverPort: MDDiscoverPort): Observable<DiscoveryNotify> {
    const discoverySubject: DiscoverySubject = new DiscoverySubject();
    this.discoverySubscriber.setDiscoverySubject(discoverySubject);

    this.rpcService.send('DiscoveryService.discoverPort', probeID, host, discoverPort);

    return discoverySubject;
  }
  public discoverService(probeID: string, port: Port, discoverService: MDDiscoverService): Observable<DiscoveryNotify> {
    const discoverySubject: DiscoverySubject = new DiscoverySubject();
    this.discoverySubscriber.setDiscoverySubject(discoverySubject);

    this.rpcService.send('DiscoveryService.discoverService', probeID, port, discoverService);

    return discoverySubject;
  }
}