import Perk from '../entity/Perk';
import PerkAdapterInterface from './PerkAdapterInterface';
import FileFactoryInterface from '../../File/factories/FileFactoryInterface';
import Image from '../../Image/entity/Image';

export default class PerkAdapter implements PerkAdapterInterface {
  protected imageAdapter: FileFactoryInterface;

  constructor(imageAdapter: FileFactoryInterface) {
    this.imageAdapter = imageAdapter;
  }
  
  adapt(json: any, instance: Perk): Perk {
    instance.title = json.title;
    instance.description = json.description;
    instance.image = json.image ? <Image>this.imageAdapter.transformToEntity(json.image) : null;
    
    return instance;
  }

  prepare(instance: Perk): object {
    let perk_image = instance.image ? instance.image.id : false;

    return {
      title: instance.title,
      description: instance.description,
      image_id: perk_image,
    };
  }
  
  transformToEntity(json: any): Perk {
    return this.adapt(json, new Perk());
  }
  
  transformToPayload(instance: Perk): any {
    return this.prepare(instance);
  }
}