import { voipCall } from '@kit.CallServiceKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { common } from '@kit.AbilityKit';
import { image } from '@kit.ImageKit';
import { resourceManager } from '@kit.LocalizationKit';

export interface VoipScene {
  scene: string;
}

export interface Content {
  data: string;
  header: string;
  callId: string;
}

export class VoipCallService {
  private static callId: string | undefined;

  public static async processVoIPMainMsg(data: string,
    context: common.UIAbilityContext): Promise<void> {
    hilog.info(0x0000, 'testTag', `Process VoIP message: ${data}`);

    let content: Content = JSON.parse(data);
    let scene: VoipScene = JSON.parse(content.data);
    let callId: string = content.callId;
    if (!callId) {
      hilog.error(0x0000, 'testTag', `CallId is null`);
    }
    VoipCallService.callId = callId;

    // 注册voipCallUiEvent事件
    voipCall.on('voipCallUiEvent', async (event) => {
      hilog.info(0x0000, 'testTag', `Process voip call ui event: ${JSON.stringify(event)}.`);

      await VoipCallService.processVoipCallEvent(event.voipCallUiEvent);
    });

    const resourceMgr: resourceManager.ResourceManager = context.resourceManager;
    // example.png表示用户头像，取值为“/resources/rawfile”路径下的文件名
    const fileData: Uint8Array = await resourceMgr.getRawFileContent('example.png');
    const buffer = fileData.buffer;
    const imageSource: image.ImageSource = image.createImageSource(buffer);
    const pixelMap: image.PixelMap = await imageSource.createPixelMap();
    if (pixelMap) {
      pixelMap.getImageInfo((err, imageInfo) => {
        if (imageInfo) {
          hilog.info(0x0000, 'testTag',
            `User profile imageInfo: ${imageInfo.size.width} * ${imageInfo.size.height}.`);
        }
      });
    }

    // 构造上报来电的参数。注意，voipCallType.scene为您自定义的场景类型字段，从云侧推送消息时，请注意与端侧取值保持一致
    let call: voipCall.VoipCallAttribute = {
      callId: callId,
      voipCallType: scene?.scene === 'video' ? voipCall.VoipCallType.VOIP_CALL_VIDEO :
      voipCall.VoipCallType.VOIP_CALL_VOICE,
      userName: 'push',
      userProfile: pixelMap,
      abilityName: 'VoIPUIAbility',
      voipCallState: voipCall.VoipCallState.VOIP_CALL_STATE_RINGING
    };

    // 上报来电
    let error = await voipCall.reportIncomingCall(call);
    hilog.info(0x0000, 'testTag', `ReportIncomingCall result: ${error}.`);

    // ...应用播放振动和铃声
  }

  public static async processVoipCallEvent(event: voipCall.VoipCallUiEvent) {
    switch (event) {
      case voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_VOICE_ANSWER:
      case voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_VIDEO_ANSWER:
        // 立即向Call Service Kit上报answered状态
        await voipCall.reportCallStateChange(VoipCallService.callId,
          voipCall.VoipCallState.VOIP_CALL_STATE_ANSWERED);

        //...在应用内完成接听

        // 应用内接听后，向Call Service Kit上报active状态
        voipCall.reportCallStateChange(VoipCallService.callId,
          voipCall.VoipCallState.VOIP_CALL_STATE_ACTIVE);
        break;
      case voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_REJECT:
      case voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_HANGUP:
        // ...应用内完成挂断

        // 向Call Service Kit上报通话状态
        await voipCall.reportCallStateChange(VoipCallService.callId,
          voipCall.VoipCallState.VOIP_CALL_STATE_DISCONNECTED);
        break;
      default: {
        break;
      }
    }
  }

  public static close(): void {
    hilog.info(0x0000, 'testTag', `Close VoIP`);

    VoipCallService.processVoipCallEvent(voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_HANGUP);
    voipCall.off('voipCallUiEvent');
  }
}

import { VoipCallService } from '../service/VoipCallService';
import { voipCall } from '@kit.CallServiceKit';

@Component
export default struct CallComponent {
  @StorageLink('close') end: boolean | undefined = undefined;

  build() {
    Flex({ direction: FlexDirection.Column, justifyContent: FlexAlign.SpaceBetween }) {
      Row() {
      }
      .width('100%')
      .justifyContent(FlexAlign.Center)

      Row({ space: 30 }) {

        Column() {
          Button()
            .width(80)
            .height(80)
            .backgroundColor(Color.Green)
            .onClick(() => {
              VoipCallService.processVoipCallEvent(voipCall.VoipCallUiEvent.VOIP_CALL_EVENT_VIDEO_ANSWER);
            })

          Text('Answer').fontColor(Color.White).padding({ top: 5 })
        }

        Column() {
          Button()
            .width(80)
            .height(80)
            .backgroundColor(Color.Red)
            .onClick(() => {
              this.end = true;
              VoipCallService.close();
            })

          Text('Hang Up').fontColor(Color.White).padding({ top: 5 })
        }

      }
      .width('100%')
      .justifyContent(FlexAlign.Center)
    }
    .padding('30 10')
    .backgroundColor(Color.Black)
  }
}