import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  ManyToOne,
  OneToOne,
  JoinColumn,
  OneToMany,
  Unique,
} from 'typeorm';
import { Tenant } from '../../tenant/tenant.entity';
import { AssessmentTemplate } from './assessment-template.entity';
import type { QuestionBankItem } from './question-bank-item.entity';

export enum QuestionBankStatus {
  DRAFT = 'DRAFT',
  PENDING_REVIEW = 'PENDING_REVIEW',
  PUBLISHED = 'PUBLISHED',
  REJECTED = 'REJECTED',
}

@Entity('question_banks')
@Unique(['templateId'])
export class QuestionBank {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ name: 'tenant_id', nullable: true })
  tenantId: string | null;

  @ManyToOne(() => Tenant, { nullable: true, onDelete: 'CASCADE' })
  @JoinColumn({ name: 'tenant_id' })
  tenant: Tenant;

  @Column({ name: 'template_id', nullable: true })
  templateId: string | null;

  @OneToOne(() => AssessmentTemplate, { nullable: true })
  @JoinColumn({ name: 'template_id' })
  template: AssessmentTemplate;

  @Column()
  name: string;

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

  @Column({
    type: 'simple-enum',
    enum: QuestionBankStatus,
    default: QuestionBankStatus.DRAFT,
  })
  status: QuestionBankStatus;

  @Column({ name: 'created_by', nullable: true, type: 'text' })
  createdBy: string | null;

  @Column({ name: 'reviewed_by', nullable: true, type: 'text' })
  reviewedBy: string | null;

  @Column({ name: 'reviewed_at', nullable: true, type: 'datetime' })
  reviewedAt: Date | null;

  @Column({ name: 'review_comment', nullable: true, type: 'text' })
  reviewComment: string | null;

  @OneToMany(
    'QuestionBankItem',
    (item: QuestionBankItem) => item.bank,
  )
  items: QuestionBankItem[];

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

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