import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  ManyToOne,
  JoinColumn,
} from 'typeorm';
import { QuestionBank } from './question-bank.entity';

export enum QuestionBankItemStatus {
  PENDING_REVIEW = 'PENDING_REVIEW',
  PUBLISHED = 'PUBLISHED',
}

export enum QuestionType {
  SHORT_ANSWER = 'SHORT_ANSWER',
  MULTIPLE_CHOICE = 'MULTIPLE_CHOICE',
  TRUE_FALSE = 'TRUE_FALSE',
}

export enum QuestionDifficulty {
  STANDARD = 'STANDARD',
  ADVANCED = 'ADVANCED',
  SPECIALIST = 'SPECIALIST',
}

export enum QuestionDimension {
  PROMPT = 'PROMPT',
  LLM = 'LLM',
  IDE = 'IDE',
  DEV_PATTERN = 'DEV_PATTERN',
  WORK_CAPABILITY = 'WORK_CAPABILITY',
}

@Entity('question_bank_items')
export class QuestionBankItem {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ name: 'bank_id' })
  bankId: string;

  @ManyToOne(
    () => QuestionBank,
    (bank: QuestionBank) => bank.items,
    { onDelete: 'CASCADE' },
  )
  @JoinColumn({ name: 'bank_id' })
  bank: QuestionBank;

  @Column({ type: 'text', name: 'question_text' })
  questionText: string;

  @Column({
    type: 'simple-enum',
    enum: QuestionType,
    default: QuestionType.SHORT_ANSWER,
  })
  questionType: QuestionType;

  @Column({ type: 'simple-json', nullable: true })
  options: string[] | null;

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

  @Column({ type: 'simple-json', name: 'key_points' })
  keyPoints: string[];

  @Column({
    type: 'simple-enum',
    enum: QuestionDifficulty,
    default: QuestionDifficulty.STANDARD,
  })
  difficulty: QuestionDifficulty;

  @Column({
    type: 'simple-enum',
    enum: QuestionDimension,
    default: QuestionDimension.PROMPT,
  })
  dimension: QuestionDimension;

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

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

  @Column({ type: 'simple-json', nullable: true, name: 'followup_hints' })
  followupHints: string[] | null;

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

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

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

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