import { Entity, ManyToOne, OptionalProps, Property } from '@mikro-orm/core';
import { Product } from 'src/modules/product/entities/product.entity';
import { BaseEntity } from 'src/common/entities/base.entity';
import { Invoice } from './invoice.entity';


@Entity({ tableName: 'invoice_items' })
export class InvoiceItem extends BaseEntity {
  [OptionalProps]?: 'createdAt' | 'deletedAt' | 'subTotal' | 'total';

  @ManyToOne(() => Invoice)
  invoice!: Invoice;

  @ManyToOne(() => Product)
  product!: Product;


  @Property({ type: 'int' })
  quantity!: number;

  @Property({ type: 'int'})
  unitPrice: number;

  @Property({
    type: 'int',
    columnType: 'int GENERATED ALWAYS AS (COALESCE(unit_price, 0) * quantity) STORED',
    persist: false,
    nullable: true
  })
  subTotal!: number;

  @Property({
    type: 'int',
    nullable: true
  })
  discount?: number;

  @Property({
    type: 'int',
    nullable: true,
    columnType: 'int GENERATED ALWAYS AS ((COALESCE(unit_price, 0) * quantity) - COALESCE(discount, 0)) STORED',
    persist: false
  })
  total!: number;

  @Property({ type: 'text', nullable: true })
  description?: string;

  @Property({ type: 'string', nullable: true })
  paymentMethod?: string;


  @Property({ nullable: true, columnType: 'timestamptz' })
  confirmedAt?: Date;


  @Property({ type: 'json', nullable: true })
  attachments?: string[]

}