import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  DeleteDateColumn,
  Index,
} from 'typeorm';

export type PaymentProvider = 'stripe' | 'mercadopago' | 'bank_transfer';
export type PaymentMethodType = 'card' | 'bank_account' | 'wallet';

/**
 * Entidad para metodos de pago guardados por tenant.
 * Almacena informacion tokenizada/encriptada de metodos de pago.
 * Mapea a billing.payment_methods (DDL: 05-billing-usage.sql)
 */
@Entity({ name: 'payment_methods', schema: 'billing' })
export class BillingPaymentMethod {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Index()
  @Column({ name: 'tenant_id', type: 'uuid' })
  tenantId: string;

  // Proveedor
  @Index()
  @Column({ type: 'varchar', length: 30 })
  provider: PaymentProvider;

  // Tipo
  @Column({ name: 'method_type', type: 'varchar', length: 20 })
  methodType: PaymentMethodType;

  // Datos tokenizados del proveedor
  @Column({ name: 'provider_customer_id', type: 'varchar', length: 255, nullable: true })
  providerCustomerId: string;

  @Column({ name: 'provider_method_id', type: 'varchar', length: 255, nullable: true })
  providerMethodId: string;

  // Display info (no sensible)
  @Column({ name: 'display_name', type: 'varchar', length: 100, nullable: true })
  displayName: string;

  @Column({ name: 'card_brand', type: 'varchar', length: 20, nullable: true })
  cardBrand: string;

  @Column({ name: 'card_last_four', type: 'varchar', length: 4, nullable: true })
  cardLastFour: string;

  @Column({ name: 'card_exp_month', type: 'integer', nullable: true })
  cardExpMonth: number;

  @Column({ name: 'card_exp_year', type: 'integer', nullable: true })
  cardExpYear: number;

  @Column({ name: 'bank_name', type: 'varchar', length: 100, nullable: true })
  bankName: string;

  @Column({ name: 'bank_last_four', type: 'varchar', length: 4, nullable: true })
  bankLastFour: string;

  // Estado
  @Index()
  @Column({ name: 'is_default', type: 'boolean', default: false })
  isDefault: boolean;

  @Column({ name: 'is_active', type: 'boolean', default: true })
  isActive: boolean;

  @Column({ name: 'is_verified', type: 'boolean', default: false })
  isVerified: boolean;

  @CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
  createdAt: Date;

  @UpdateDateColumn({ name: 'updated_at', type: 'timestamptz' })
  updatedAt: Date;

  @DeleteDateColumn({ name: 'deleted_at', type: 'timestamptz', nullable: true })
  deletedAt: Date;
}
