<?php
/**
 * Exception based on HTTP response
 */

namespace WpOrg\Requests\Exception;

use WpOrg\Requests\Exception;
use WpOrg\Requests\Exception\Http\StatusUnknown;

/**
 * Exception based on HTTP response
 */
class Http extends Exception
{
    /**
     * HTTP status code
     *
     * @var int
     */
    protected $code = 0;

    /**
     * Reason phrase
     *
     * @var string
     */
    protected $reason = 'Unknown';

    /**
     * Create a new exception
     *
     * There is no mechanism to pass in the status code, as this is set by the
     * subclass used. Reason phrases can vary, however.
     *
     * @param  string|null  $reason  Reason phrase
     * @param  mixed  $data  Associated data
     */
    public function __construct($reason = null, $data = null)
    {
        if ($reason !== null) {
            $this->reason = $reason;
        }

        $message = sprintf('%d %s', $this->code, $this->reason);
        parent::__construct($message, 'httpresponse', $data, $this->code);
    }

    /**
     * Get the status message.
     *
     * @return string
     */
    public function getReason()
    {
        return $this->reason;
    }

    /**
     * Get the correct exception class for a given error code
     *
     * @param  int|bool  $code  HTTP status code, or false if unavailable
     * @return string Exception class name to use
     */
    public static function get_class($code)
    {
        if (! $code) {
            return StatusUnknown::class;
        }

        $class = sprintf('\WpOrg\Requests\Exception\Http\Status%d', $code);
        if (class_exists($class)) {
            return $class;
        }

        return StatusUnknown::class;
    }
}
