/**
 * Terminal DTOs
 *
 * Data Transfer Objects for terminal WebSocket events.
 * Validated using class-validator decorators.
 */

import {
  IsString,
  IsOptional,
  IsNumber,
  IsInt,
  Min,
  Max,
  MinLength,
  MaxLength,
} from "class-validator";

/**
 * DTO for creating a new terminal PTY session.
 */
export class CreateTerminalDto {
  @IsOptional()
  @IsString()
  @MaxLength(128)
  name?: string;

  @IsOptional()
  @IsInt()
  @Min(1)
  @Max(500)
  cols?: number;

  @IsOptional()
  @IsInt()
  @Min(1)
  @Max(200)
  rows?: number;

  @IsOptional()
  @IsString()
  @MaxLength(4096)
  cwd?: string;
}

/**
 * DTO for sending input data to a terminal PTY session.
 */
export class TerminalInputDto {
  @IsString()
  @MinLength(1)
  @MaxLength(64)
  sessionId!: string;

  @IsString()
  data!: string;
}

/**
 * DTO for resizing a terminal PTY session.
 */
export class TerminalResizeDto {
  @IsString()
  @MinLength(1)
  @MaxLength(64)
  sessionId!: string;

  @IsNumber()
  @IsInt()
  @Min(1)
  @Max(500)
  cols!: number;

  @IsNumber()
  @IsInt()
  @Min(1)
  @Max(200)
  rows!: number;
}

/**
 * DTO for closing a terminal PTY session.
 */
export class CloseTerminalDto {
  @IsString()
  @MinLength(1)
  @MaxLength(64)
  sessionId!: string;
}