<?php
/**
 * Exception based on HTTP response
 *
 * @package Requests\Exceptions
 */

namespace WpOrg\Requests\Exception;

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

/**
 * Exception based on HTTP response
 *
 * @package Requests\Exceptions
 */
class Http extends Exception {
    /**
     * HTTP status code
     *
     * @var integer
     */
    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;
    }
}