import {
  type FrameProcessorPlugin,
  VisionCameraProxy,
} from 'react-native-vision-camera';
import type {
  Frame,
  ImageLabelerPlugin,
  ImageLabelingOptions,
  Label,
} from './types';
import { Platform } from 'react-native';

const LINKING_ERROR: string =
  `The package 'react-native-vision-camera-v3-image-labeling' doesn't seem to be linked. Make sure: \n\n` +
  Platform.select({ ios: "- You have run 'pod install'\n", default: '' }) +
  '- You rebuilt the app after installing the package\n' +
  '- You are not using Expo Go\n';

export function createImageLabelerPlugin(
  options: ImageLabelingOptions
): ImageLabelerPlugin {
  const plugin: FrameProcessorPlugin | undefined =
    VisionCameraProxy.initFrameProcessorPlugin('scanImage', {
      ...options,
    });
  if (!plugin) {
    throw new Error(LINKING_ERROR);
  }
  return {
    scanImage: (frame: Frame): Label => {
      'worklet';
      return plugin.call(frame) as unknown as Label;
    },
  };
}