import { ProjectStatus } from "@prisma/client";
import {
  IsString,
  IsOptional,
  IsEnum,
  IsDateString,
  IsObject,
  MinLength,
  MaxLength,
  Matches,
} from "class-validator";

/**
 * DTO for updating an existing project
 * All fields are optional to support partial updates
 */
export class UpdateProjectDto {
  @IsOptional()
  @IsString({ message: "name must be a string" })
  @MinLength(1, { message: "name must not be empty" })
  @MaxLength(255, { message: "name must not exceed 255 characters" })
  name?: string;

  @IsOptional()
  @IsString({ message: "description must be a string" })
  @MaxLength(10000, { message: "description must not exceed 10000 characters" })
  description?: string | null;

  @IsOptional()
  @IsEnum(ProjectStatus, { message: "status must be a valid ProjectStatus" })
  status?: ProjectStatus;

  @IsOptional()
  @IsDateString({}, { message: "startDate must be a valid ISO 8601 date string" })
  startDate?: Date | null;

  @IsOptional()
  @IsDateString({}, { message: "endDate must be a valid ISO 8601 date string" })
  endDate?: Date | null;

  @IsOptional()
  @IsString({ message: "color must be a string" })
  @Matches(/^#[0-9A-F]{6}$/i, {
    message: "color must be a valid hex color code (e.g., #FF5733)",
  })
  color?: string | null;

  @IsOptional()
  @IsObject({ message: "metadata must be an object" })
  metadata?: Record<string, unknown>;
}