next-ucap-messenger/projects/ucap-webmessenger-protocol-event/src/lib/services/event-protocol.service.ts

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

import { Observable } from 'rxjs';
import { map, takeWhile, timeout, take } from 'rxjs/operators';

import { ProtocolService } from '@ucap-webmessenger/protocol';

import {
  InfoRequest,
  InfoResponse,
  encodeInfo,
  decodeInfo,
  decodeInfoData,
  InfoData
} from '../models/info';
import {
  SVC_TYPE_EVENT,
  SSVC_TYPE_EVENT_INFO_REQ,
  SSVC_TYPE_EVENT_INFO_RES,
  SSVC_TYPE_EVENT_INFO_DATA,
  SSVC_TYPE_EVENT_SEND_REQ,
  SSVC_TYPE_EVENT_PUSH_CL_REQ,
  SSVC_TYPE_EVENT_READ_REQ,
  SSVC_TYPE_EVENT_DEL_REQ,
  SSVC_TYPE_EVENT_CANCEL_REQ
} from '../types/service';
import {
  SendRequest,
  SendResponse,
  decodeSend,
  encodeSend
} from '../models/send';
import { PushRequest, encodePush } from '../models/push';
import {
  ReadResponse,
  ReadRequest,
  encodeRead,
  decodeRead
} from '../models/read';
import {
  DelRequest,
  DelResponse,
  encodeDel,
  decodeDel
} from '@ucap-webmessenger/protocol-buddy';
import {
  CancelRequest,
  CancelResponse,
  encodeCancel,
  decodeCancel
} from '../models/cancel';

@Injectable({
  providedIn: 'root'
})
export class EventProtocolService {
  constructor(private protocolService: ProtocolService) {}

  public info(req: InfoRequest): Observable<InfoResponse | InfoData> {
    return this.protocolService
      .call(SVC_TYPE_EVENT, SSVC_TYPE_EVENT_INFO_REQ, ...encodeInfo(req))
      .pipe(
        takeWhile(res => SSVC_TYPE_EVENT_INFO_RES !== res.subServiceType, true),
        map(res => {
          if (SSVC_TYPE_EVENT_INFO_DATA === res.subServiceType) {
            return {
              ...decodeInfoData(res),
              Type: SSVC_TYPE_EVENT_INFO_DATA
            };
          }
          return {
            ...decodeInfo(res),
            Type: SSVC_TYPE_EVENT_INFO_RES
          };
        })
      );
  }

  public send(req: SendRequest): Observable<SendResponse> {
    return this.protocolService
      .call(SVC_TYPE_EVENT, SSVC_TYPE_EVENT_SEND_REQ, ...encodeSend(req))
      .pipe(
        take(1),
        map(res => {
          return decodeSend(res);
        })
      );
  }

  public push(req: PushRequest): void {
    return this.protocolService.send(
      SVC_TYPE_EVENT,
      SSVC_TYPE_EVENT_PUSH_CL_REQ,
      ...encodePush(req)
    );
  }

  public read(req: ReadRequest): Observable<ReadResponse> {
    return this.protocolService
      .call(SVC_TYPE_EVENT, SSVC_TYPE_EVENT_READ_REQ, ...encodeRead(req))
      .pipe(
        take(1),
        map(res => {
          return decodeRead(res);
        })
      );
  }

  public del(req: DelRequest): Observable<DelResponse> {
    return this.protocolService
      .call(SVC_TYPE_EVENT, SSVC_TYPE_EVENT_DEL_REQ, ...encodeDel(req))
      .pipe(
        take(1),
        map(res => {
          return decodeDel(res);
        })
      );
  }

  public cancel(req: CancelRequest): Observable<CancelResponse> {
    return this.protocolService
      .call(SVC_TYPE_EVENT, SSVC_TYPE_EVENT_CANCEL_REQ, ...encodeCancel(req))
      .pipe(
        take(1),
        map(res => {
          return decodeCancel(res);
        })
      );
  }
}