import { ApiProperty } from "@nestjs/swagger";
import { IsString, IsOptional, IsNotEmpty, IsUUID, IsDateString, MaxLength } from "class-validator";

export class CreateTaskDto {
  @ApiProperty({ description: "Title of the task", example: "Implement login page" })
  @IsString()
  @IsNotEmpty()
  @MaxLength(150)
  title: string;

  @ApiProperty({ description: "Description of the task", required: false, example: "Implement the login page with JWT auth" })
  @IsString()
  @IsOptional()
  description?: string;

  @ApiProperty({ description: "Color code for the task", required: false, example: "#4F46E5" })
  @IsString()
  @IsOptional()
  @MaxLength(20)
  color?: string;

  @ApiProperty({ description: "Start date of the task", required: false, example: "2026-07-01" })
  @IsDateString()
  @IsOptional()
  startDate?: string;

  @ApiProperty({ description: "End date of the task", required: false, example: "2026-07-15" })
  @IsDateString()
  @IsOptional()
  endDate?: string;

  @ApiProperty({ description: "ID of the task phase this task belongs to", example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890" })
  @IsUUID()
  @IsNotEmpty()
  taskPhaseId: string;

  @ApiProperty({
    description: "IDs of users to assign to the task",
    required: false,
    type: [String],
    example: ["b2c3d4e5-f6a7-8901-bcde-f12345678901"],
  })
  @IsUUID("4", { each: true })
  @IsOptional()
  userIds?: string[];
}