next-ucap-messenger/projects/ucap-webmessenger-app/src/app/store/messenger/room/effects.ts

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

import { Actions, createEffect, ofType } from '@ngrx/effects';

import { Store } from '@ngrx/store';

import { NGXLogger } from 'ngx-logger';

import { of } from 'rxjs';
import { tap, switchMap, map, catchError } from 'rxjs/operators';
import {
  RoomInfo,
  UserInfoShort,
  UserInfo,
  RoomProtocolService,
  SSVC_TYPE_ROOM_INFO_ROOM,
  InfoData,
  SSVC_TYPE_ROOM_INFO_USER,
  SSVC_TYPE_ROOM_INFO_USER2,
  SSVC_TYPE_ROOM_INFO_RES,
  UserShortData,
  UserData
} from '@ucap-webmessenger/protocol-room';

import * as ChatStore from '@app/store/messenger/chat';

import { info, infoSuccess, infoFailure } from './actions';
import { SessionStorageService } from '@ucap-webmessenger/web-storage';
import { LoginInfo, KEY_LOGIN_INFO } from '@app/types';

@Injectable()
export class Effects {
  selectedRoomForInfo$ = createEffect(() =>
    this.actions$.pipe(
      ofType(ChatStore.selectedRoom),
      map(action => {
        const loginInfo = this.sessionStorageService.get<LoginInfo>(
          KEY_LOGIN_INFO
        );
        return info({
          roomSeq: action.roomSeq,
          isDetail: true,
          localeCode: loginInfo.localeCode
        });
      })
    )
  );

  info$ = createEffect(
    () => {
      let roomInfo: RoomInfo;
      let userInfoShortList: UserInfoShort[];
      let userInfoList: UserInfo[];

      return this.actions$.pipe(
        ofType(info),
        tap(() => {
          roomInfo = null;
          userInfoShortList = [];
          userInfoList = [];
        }),
        switchMap(req => {
          return this.roomProtocolService.info(req).pipe(
            map(res => {
              switch (res.Type) {
                case SSVC_TYPE_ROOM_INFO_ROOM:
                  roomInfo = (res as InfoData).roomInfo;
                  break;
                case SSVC_TYPE_ROOM_INFO_USER:
                  userInfoShortList.push(...(res as UserShortData).userInfos);
                  break;
                case SSVC_TYPE_ROOM_INFO_USER2:
                  userInfoList.push(...(res as UserData).userInfos);
                  break;
                case SSVC_TYPE_ROOM_INFO_RES:
                  this.store.dispatch(
                    infoSuccess({
                      roomInfo,
                      userInfoShortList,
                      userInfoList
                    })
                  );
                  break;
              }
            }),
            catchError(error => of(infoFailure({ error })))
          );
        })
      );
    },
    { dispatch: false }
  );

  constructor(
    private actions$: Actions,
    private store: Store<any>,
    private roomProtocolService: RoomProtocolService,
    private sessionStorageService: SessionStorageService,
    private logger: NGXLogger
  ) {}
}