<?php
/**
 * webtrees: online genealogy
 * Copyright (C) 2017 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
namespace Fisharebest\Webtrees\Functions;

/**
 * Class FunctionsMedia - common functions
 */
class FunctionsMedia {
	/**
	 * Convert raw values from php.ini file into bytes
	 *
	 * @param string $val
	 *
	 * @return int
	 */
	public static function sizeToBytes($val) {
		if (!$val) {
			// no value was passed in, assume no limit and return -1
			$val = -1;
		}
		switch (substr($val, -1)) {
			case 'g':
			case 'G':
				return (int) $val * 1024 * 1024 * 1024;
			case 'm':
			case 'M':
				return (int) $val * 1024 * 1024;
			case 'k':
			case 'K':
				return (int) $val * 1024;
			default:
				return (int) $val;
		}
	}

	/**
	 * Send a dummy image, where one could not be found or created.
	 *
	 * @param int    $status HTTP status code, such as 404 for "Not found"
	 * @param string $message
	 */
	public static function outputHttpStatusAsImage($status, $message) {
		$width      = 100;
		$height     = 100;
		$image      = imagecreatetruecolor($width, $height);
		$foreground = imagecolorallocate($image, 255, 0, 0);
		$background = imagecolorallocate($image, 224, 224, 224);

		// Draw a border
		imagefilledrectangle($image, 0, 0, $width, $height, $foreground);
		imagefilledrectangle($image, 1, 1, $width - 2, $height - 2, $background);

		// Draw text
		imagestring($image, 5, 5, 30, (string) $status, $foreground);
		imagestring($image, 5, 5, 50, $message, $foreground);


		http_response_code(404);
		header('Content-Type: image/png');
		imagepng($image);
		imagedestroy($image);
	}
}
