<?php declare(strict_types=1);

namespace BitBadger\PDODocument;

use Exception;
use Throwable;

/**
 * Exceptions occurring during document processing
 */
class DocumentException extends Exception
{
    /**
     * Constructor
     *
     * @param string $message A message for the exception
     * @param int $code The code for the exception (optional; defaults to 0)
     * @param Throwable|null $previous The previous exception (optional; defaults to `null`)
     */
    public function __construct(string $message, int $code = 0, ?Throwable $previous = null)
    {
        parent::__construct($message, $code, $previous);
    }

    public function __toString(): string
    {
        $codeStr = $this->code == 0 ? '' : "[$this->code] ";
        return __CLASS__ . ": $codeStr$this->message\n";
    }
}