backend/src/comments/dto/comment.dto.ts

import { MediaEntityType } from '@prisma/client';
import { Transform, Type } from 'class-transformer';
import {
  IsBoolean,
  IsEmail,
  IsEnum,
  IsInt,
  IsOptional,
  IsString,
  Min,
  MinLength,
} from 'class-validator';

export class CreatePublicCommentDto {
  @IsEnum(MediaEntityType)
  entityType!: MediaEntityType;

  @IsString()
  @MinLength(1)
  entityId!: string;

  @IsString()
  @MinLength(2)
  authorName!: string;

  @IsOptional()
  @IsEmail()
  authorEmail?: string;

  @IsString()
  @MinLength(1)
  text!: string;
}

export class ListPublicCommentsDto {
  @IsEnum(MediaEntityType)
  entityType!: MediaEntityType;

  @IsString()
  @MinLength(1)
  entityId!: string;
}

export class ListCommentsDto {
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  page?: number;

  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  pageSize?: number;

  @IsOptional()
  @IsEnum(MediaEntityType)
  entityType?: MediaEntityType;

  @IsOptional()
  @IsString()
  entityId?: string;

  /** Filter by approval: true = approved, false = pending, omit = all */
  @IsOptional()
  @Transform(({ value }) => {
    if (value === 'true' || value === true) return true;
    if (value === 'false' || value === false) return false;
    return value;
  })
  @IsBoolean()
  isApproved?: boolean;
}

export class UpdateCommentApprovalDto {
  @IsBoolean()
  isApproved!: boolean;
}