next-ucap-messenger/projects/ucap-webmessenger-app/src/app/store/messenger/sync/reducers.ts

import { createReducer, on } from '@ngrx/store';
import { initialState } from './state';
import {
  buddy2Success,
  group2Success,
  roomSuccess,
  updateRoomForNewEventMessage
} from './actions';

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

export const reducer = createReducer(
  initialState,
  on(buddy2Success, (state, action) => {
    return {
      ...state,
      buddyInfoList: [...state.buddyInfoList, ...action.buddyList],
      buddy2SyncDate: action.syncDate
    };
  }),

  on(group2Success, (state, action) => {
    return {
      ...state,
      groupList: [...state.groupList, ...action.groupList],
      group2SyncDate: action.syncDate
    };
  }),

  on(roomSuccess, (state, action) => {
    return {
      ...state,
      roomList: [...state.roomList, ...action.roomList],
      roomUserInfoMap: {
        ...state.roomUserInfoMap,
        ...action.roomUserInfoMap
      },
      roomSyncDate: action.syncDate
    };
  }),

  on(updateRoomForNewEventMessage, (state, action) => {
    const roomList: RoomInfo[] = [];

    state.roomList.forEach((roomInfo, index) => {
      if (roomInfo.roomSeq === action.roomSeq) {
        roomList.push({
          ...roomInfo,
          finalEventDate: action.info.sendDate,
          finalEventMessage: action.info.sentMessage
        });
      } else {
        roomList.push(roomInfo);
      }
    });

    return {
      ...state,
      roomList
    };
  })
);