/**
 * 相机拍照能力（契约 §8.8/§9，T-M3-12）。@kit.CameraKit CameraPicker。
 *  - opencamera：拉起系统相机拍照 → 出站 getcameraaAddress（拼写原样双 a，照片 uri 裸串）。
 * 系统相机选择器无需申请相机权限。
 */
import { camera, cameraPicker } from '@kit.CameraKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { common } from '@kit.AbilityKit';
import { BridgeController } from 'feature_bridge';
import { InboundHandlers, OutboundHandlers } from 'contracts';
import { Logger } from 'common';
import { CapabilityContext, CapabilityProvider } from '../core/CapabilityProvider';

export class CameraProvider implements CapabilityProvider {
  readonly name: string = 'camera';
  private readonly log: Logger = Logger.tag('CameraProvider');
  private bridge: BridgeController | undefined = undefined;
  private context: common.UIAbilityContext | undefined = undefined;

  register(bridge: BridgeController, ctx: CapabilityContext): void {
    this.bridge = bridge;
    this.context = ctx.uiAbilityContext;
    bridge.registerHandler(InboundHandlers.OpenCamera, (_d: string, _cb: (resp: string) => void) => {
      this.capture();
    });
  }

  private capture(): void {
    const ctx = this.context;
    if (ctx === undefined) {
      return;
    }
    const profile: cameraPicker.PickerProfile = {
      cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK,
    };
    cameraPicker.pick(ctx, [cameraPicker.PickerMediaType.PHOTO], profile)
      .then((result: cameraPicker.PickerResult) => {
        if (result.resultCode === 0 && result.resultUri !== '') {
          this.bridge?.callHandler(OutboundHandlers.GetCameraAddress, result.resultUri);
        } else {
          this.log.i(`camera canceled: resultCode=${result.resultCode}`);
        }
      })
      .catch((e: BusinessError) => {
        this.log.i(`camera failed: ${e.code} ${e.message}`);
      });
  }
}