import { uniqBy } from 'lodash';
import { Ctx, Field, ObjectType } from 'type-graphql';
import { Column, Entity, ManyToOne, OneToMany } from 'typeorm';
import { RetailerProductVariant } from '@/entities';
import { ContextType } from '@/types';
import { AggregateProduct } from '../AggregateProduct';
import { AbstractRetailerProductData } from './AbstractRetailerProductData';

@Entity({ name: 'retailer_products' })
@ObjectType({
  implements: AbstractRetailerProductData.objectTypeImplements,
})
export default class RetailerProduct extends AbstractRetailerProductData {
  @OneToMany(() => RetailerProductVariant, (variant) => variant.product)
  variants!: RetailerProductVariant[];

  @Field(() => [RetailerProductVariant], { name: 'variants' })
  async variantsResolver(
    @Ctx() { dbDataLoader }: ContextType
  ): Promise<RetailerProductVariant[]> {
    return uniqBy(
      await dbDataLoader.retailerProductVariantsByRetailerProductId.load(
        this.id
      ),
      'retailer'
    );
  }

  @ManyToOne(
    () => AggregateProduct,
    (aggregateProduct) => aggregateProduct.retailerProducts,
    {
      nullable: false,
    }
  )
  @Field(() => AggregateProduct)
  aggregateProduct!: AggregateProduct;

  @Column()
  aggregateProductId!: string;
}