import { CameraPreviewMode } from '../common/Common';
import { DeepPartial, PartiallyConstructible } from '../../utils';
import { OrientationLockMode } from '../common/Common';

/**
Determines which camera module to use on start-up.

- `FRONT`:
   Use the front camera.
- `BACK`:
   Use the default back camera.
- `BACK_WIDEST`:
   Use the back camera with the widest available angle. iOS only.
*/
export type CameraModule = 'FRONT' | 'BACK' | 'BACK_WIDEST';

/**
Configuration of the camera settings to be used while scanning.
*/
export class CameraConfiguration extends PartiallyConstructible {
  /**
    Determines which camera module to use on start-up.
    Default is BACK
    */
  public cameraModule: CameraModule = 'BACK';
  /**
    The zoom steps available to the user.
    */
  public zoomSteps: number[] = [1.0, 2.0, 5.0];
  /**
    The default zoom factor on start-up.
    Default is 1.0
    */
  public defaultZoomFactor: number = 1.0;
  /**
    Determines whether the flash is enabled on start-up.
    Default is false
    */
  public flashEnabled: boolean = false;
  /**
    Determines whether to lock the focus at the minimum possible distance (device-specific).
    Default is false
    */
  public minFocusDistanceLock: boolean = false;
  /**
    Determines whether touch-to-focus is enabled or not. Android only.
    Default is false
    */
  public touchToFocusEnabled: boolean = false;
  /**
    Determines whether pinch-to-zoom is enabled or not.
    Default is true
    */
  public pinchToZoomEnabled: boolean = true;
  /**
    Determines which mode to use when orientation should be locked to landscape or portrait.
    Default is NONE
    */
  public orientationLockMode: OrientationLockMode = 'NONE';
  /**
    Determines which camera preview mode to use.
    Default is FILL_IN
    */
  public cameraPreviewMode: CameraPreviewMode = 'FILL_IN';

  /** @param source {@displayType `DeepPartial<CameraConfiguration>`} */
  public constructor(source: DeepPartial<CameraConfiguration> = {}) {
    super();
    if (source.cameraModule !== undefined) {
      this.cameraModule = source.cameraModule;
    }
    if (source.zoomSteps !== undefined) {
      this.zoomSteps = source.zoomSteps.map((it) => it);
    }
    if (source.defaultZoomFactor !== undefined) {
      this.defaultZoomFactor = source.defaultZoomFactor;
    }
    if (source.flashEnabled !== undefined) {
      this.flashEnabled = source.flashEnabled;
    }
    if (source.minFocusDistanceLock !== undefined) {
      this.minFocusDistanceLock = source.minFocusDistanceLock;
    }
    if (source.touchToFocusEnabled !== undefined) {
      this.touchToFocusEnabled = source.touchToFocusEnabled;
    }
    if (source.pinchToZoomEnabled !== undefined) {
      this.pinchToZoomEnabled = source.pinchToZoomEnabled;
    }
    if (source.orientationLockMode !== undefined) {
      this.orientationLockMode = source.orientationLockMode;
    }
    if (source.cameraPreviewMode !== undefined) {
      this.cameraPreviewMode = source.cameraPreviewMode;
    }
  }
}