zod-backend/src/card/entities/card.entity.ts

import {
  Column,
  CreateDateColumn,
  Entity,
  Index,
  JoinColumn,
  ManyToOne,
  OneToMany,
  PrimaryGeneratedColumn,
  UpdateDateColumn,
} from 'typeorm';
import { Customer } from '~/customer/entities';
import { CardColors, CardIssuers, CardScheme, CardStatus, CardStatusDescription, CustomerType } from '../enums';
import { Account } from './account.entity';
import { Transaction } from './transaction.entity';

@Entity('cards')
export class Card {
  @PrimaryGeneratedColumn('uuid')
  id!: string;

  @Index({ unique: true })
  @Column({ name: 'card_reference', nullable: false, type: 'varchar' })
  cardReference!: string;

  @Index({ unique: true })
  @Column({ name: 'vpan', nullable: false, type: 'varchar' })
  vpan!: string;

  @Column({ length: 6, name: 'first_six_digits', nullable: false, type: 'varchar' })
  firstSixDigits!: string;

  @Column({ length: 4, name: 'last_four_digits', nullable: false, type: 'varchar' })
  lastFourDigits!: string;

  @Column({ type: 'varchar', nullable: false })
  expiry!: string;

  @Column({ type: 'varchar', nullable: false, name: 'customer_type' })
  customerType!: CustomerType;

  @Column({ type: 'varchar', nullable: false, default: CardColors.BLUE })
  color!: CardColors;

  @Column({ type: 'varchar', nullable: false, default: CardStatus.PENDING })
  status!: CardStatus;

  @Column({ type: 'varchar', nullable: false, default: CardStatusDescription.PENDING_ACTIVATION })
  statusDescription!: CardStatusDescription;

  @Column({ type: 'decimal', precision: 10, scale: 2, default: 0.0, name: 'limit' })
  limit!: number;

  @Column({ type: 'varchar', nullable: false, default: CardScheme.VISA })
  scheme!: CardScheme;

  @Column({ type: 'varchar', nullable: false })
  issuer!: CardIssuers;

  @Column({ type: 'uuid', name: 'customer_id', nullable: false })
  customerId!: string;

  @Column({ type: 'uuid', name: 'parent_id', nullable: true })
  parentId?: string;

  @Column({ type: 'uuid', name: 'account_id', nullable: false })
  accountId!: string;

  @ManyToOne(() => Customer, (customer) => customer.childCards)
  @JoinColumn({ name: 'parent_id' })
  parentCustomer?: Customer;

  @ManyToOne(() => Customer, (customer) => customer.cards, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'customer_id' })
  customer!: Customer;

  @ManyToOne(() => Account, (account) => account.cards, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'account_id' })
  account!: Account;

  @OneToMany(() => Transaction, (transaction) => transaction.card, { cascade: true })
  transactions!: Transaction[];

  @CreateDateColumn({ name: 'created_at', type: 'timestamp with time zone' })
  createdAt!: Date;

  @UpdateDateColumn({ type: 'timestamp with time zone', name: 'updated_at' })
  updatedAt!: Date;
}