import { Column, Entity, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';
import { TransformationType } from './transformation-type';
import { Work } from './work';

@Entity()
export class Transformation implements TransformationEntityInterface {
  @PrimaryGeneratedColumn()
  public readonly id!: number;

  @ManyToOne(() => Work, (work: Work) => work.transformationOf, {
    nullable: false,
    onDelete: 'CASCADE',
    onUpdate: 'CASCADE',
  })
  public byWork!: Promise<Work>;

  @ManyToOne(
    () => TransformationType,
    (transformationType: TransformationTypeEntityInterface) => transformationType.transformations,
    {
      nullable: false,
      onDelete: 'RESTRICT',
      onUpdate: 'CASCADE',
    }
  )
  public type!: Promise<TransformationTypeEntityInterface>;

  @ManyToOne(() => Work, (work: WorkEntityInterface) => work.transformedBy, {
    nullable: true,
    onDelete: 'CASCADE',
    onUpdate: 'CASCADE',
  })
  public ofWork!: Promise<WorkEntityInterface> | null;

  @Column({
    nullable: false,
    default: 0,
  })
  public order!: number;
}