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

@Entity('invitation_codes')
export class InvitationCode {
  @PrimaryGeneratedColumn({ type: 'bigint' })
  id: bigint;

  @Index({ unique: true })
  @Column({ type: 'char', length: 64 })
  code_hash: string;

  @Column({ type: 'varchar', length: 20 })
  code_prefix: string;

  @Column({ type: 'int', unsigned: true, default: 1 })
  max_uses: number;

  @Column({ type: 'int', unsigned: true, default: 0 })
  used_count: number;

  @Column({ type: 'datetime', nullable: true })
  expires_at?: Date | null;

  @Column({ type: 'enum', enum: ['active', 'revoked'], default: 'active' })
  status: 'active' | 'revoked';

  @Column({ type: 'varchar', length: 255, nullable: true })
  note?: string | null;

  @Column({ type: 'bigint', nullable: true })
  created_by?: bigint | null;

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

@Entity('invitation_code_usages')
@Index(['invitation_code_id', 'user_id'], { unique: true })
export class InvitationCodeUsage {
  @PrimaryGeneratedColumn({ type: 'bigint' })
  id: bigint;

  @Column({ type: 'bigint' })
  invitation_code_id: bigint;

  @Column({ type: 'bigint' })
  user_id: bigint;

  @Column({ type: 'varchar', length: 100 })
  email: string;

  @CreateDateColumn({ type: 'datetime' })
  used_at: Date;
}