import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  Index,
  ManyToOne,
  JoinColumn,
} from 'typeorm';
import { UserEntity } from './user.entity';

@Entity('audit_logs')
@Index(['tenant_id', 'entity_type', 'entity_id'])
export class AuditLogEntity {
  @PrimaryGeneratedColumn('uuid')
  id: string;

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

  @Column({ type: 'varchar', length: 50 })
  entity_type: string;

  @Column({ type: 'uuid' })
  entity_id: string;

  @Column({ type: 'varchar', length: 50 })
  action: string;

  @Column({ type: 'jsonb', nullable: true })
  changes: { field: string; old_value: any; new_value: any }[] | null;

  @Column({ type: 'uuid', nullable: true })
  performed_by: string | null;

  @ManyToOne(() => UserEntity, { nullable: true })
  @JoinColumn({ name: 'performed_by' })
  performer: UserEntity;

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