xref: /applications/standard/camera/common/src/main/ets/default/featureservice/FeatureManager.ts

/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { Action } from '../redux/actions/Action';
import { CameraBasicFunction } from '../function/CameraBasicFunction';
import { CaptureFunction } from '../function/CaptureFunction';
import { Log } from '../utils/Log';
import { FunctionId } from './FunctionId';
import type { EventBus } from '../worker/eventbus/EventBus';
import { EventBusManager } from '../worker/eventbus/EventBusManager';
import { ModeAssembler } from './ModeAssembler';
import { RecordFunction } from '../function/RecordFunction';
import { WorkerManager } from '../worker/WorkerManager';
import { ZoomFunction } from '../function/ZoomFunction';
import type { IModeMap } from './IModeMap';

const TAG = '[FeatureManager]:';

export class FeatureManager {
  appEventBus: EventBus = EventBusManager.getInstance().getEventBus();
  private mModeAssembler: ModeAssembler;
  private mPreMode: string = 'PHOTO';
  public mCurrentMode: string = this.mPreMode;
  private mFunctionsMap = new Map();

  constructor(mode: string, modeMap: IModeMap) {
    Log.info(`${TAG} constructor`);
    this.initFunctionsMap();
    this.mModeAssembler = new ModeAssembler(this.mFunctionsMap, modeMap);
    this.mPreMode = mode;
    this.mCurrentMode = mode;
    this.mFunctionsMap.get(FunctionId.CAMERA_BASIC_FUNCTION).load();
    this.mModeAssembler.assembler(null, this.mPreMode);
    // 接收到modeChange的消息，调用changeMode做处理
    this.appEventBus.on(Action.ACTION_CHANGE_MODE, this.changeMode.bind(this));
  }

  public changeMode(data: any): void {
    // 外部条件触发mode切换，传入下一个mode名称
    Log.info(`${TAG} changeMode start data:  ${JSON.stringify(data)}`);
    this.mModeAssembler.assembler(this.mPreMode, data.mode);
    this.mPreMode = data.mode;
  }

  private initFunctionsMap(): void {
    Log.info(`${TAG} initFunctionsMap invoke E.`);
    this.mFunctionsMap.set(FunctionId.CAMERA_BASIC_FUNCTION, CameraBasicFunction.getInstance());
    this.mFunctionsMap.set(FunctionId.CAPTURE_FUNCTION, new CaptureFunction());
    this.mFunctionsMap.set(FunctionId.RECORDING_FUNCTION, new RecordFunction());
    this.mFunctionsMap.set(FunctionId.ZOOM_FUNCTION, new ZoomFunction());
    Log.info(`${TAG} initFunctionsMap invoke X.`);
  }
}