<?
	// == Avatars Randomizer V3.20 =============================================
	// v1.00 - 18/11/2005: Release.
	// v2.00 - 02/08/2006: Integrated a cache systeme for resized pictures.
	// v2.10 - 14/07/2007: Integrated maxSize,defaultSize, dstSize parameters.
	// v3.10 - 22/04/2016: Corrected long standing bugs with non existing output
	//					   Use of Imagick() instead of GD.
	// v3.21 - 26/09/2016: Optimisation
	//					   Sharpening
	//					   Name change (avtR to Avat.R)
	// v3.24 - 30/07/2024: Remove cookie
	// =========================================================================

	// -- Variable initialisation...
	$engine		= "Avat.R";
	$version 	= "3.26";

	$srcDir = "pakal/";
	$sizedDir = "_imgSized/";
	$maxSize = 160;
	$defaultSize = 160;

	// -- Get the file list...
	clearstatcache();
	$fileList = scandir($srcDir);


	if (is_array($fileList) AND count($fileList) >= 3) {
		// -- remove "." and ".." values from the file list...
		unset ($fileList[0]);
		unset ($fileList[1]);

		// -- Remove a previous value from the file list...
		// if (isset($_COOKIE[$engine.$version]) AND is_numeric($_COOKIE[$engine.$version])) unset($fileList[$_COOKIE[$engine.$version]]);

		// -- Randomize the file...
		reset ($fileList);
		shuffle ($fileList);
		$randKey = array_rand($fileList, 1);
		$fileName = $fileList[$randKey];

		$srcFile = $srcDir.$fileName;

		// -- If converted image exists display it else convert it and then display....
		if (file_exists($srcFile)) {

			// -- Set the cookie for the next random...
			// SetCookie($engine.$version, $randKey, time()+(60*60*24*30));
			// $_COOKIE[$engine.$version] = $randKey;

			// -- Output the resize version or the full version...
			if ( isset($_GET["sz"]) AND is_numeric($_GET["sz"]) AND $_GET["sz"] > 0 AND $_GET["sz"] <= $maxSize ) {
				$dstSize = $_GET["sz"];
			} else {
				$dstSize = $defaultSize;
			}

			$sizedFile = $sizedDir.$dstSize."-".$fileName;

			header("Content-type: image/jpeg");
			header("Content-Transfer-Encoding: binary");
			header("Cache-Control: public");

			if ( file_exists($sizedFile) ) {
				header("Content-Length: ".filesize($sizedFile));
				readfile($sizedFile);
			} else {
				// -- Read source image...
				$srcImg = new Imagick();
				$srcImg->readImage($srcFile);

				// -- Resizing...
				$srcImg->resizeImage($dstSize, $dstSize, Imagick::FILTER_LANCZOS, 1, FALSE);

				// -- Set interlace & compression quality...
				$srcImg->setInterlaceScheme(Imagick::INTERLACE_PLANE);
				$srcImg->setImageCompressionQuality(95);

				// -- Sharpening...
				$sharpening = 0.3;
				$sigma = $sharpening * 1.3;
				$srcImg->unsharpMaskImage( 0, $sigma, $sharpening, 0.05 );


				// -- Save File...
				$srcImg->writeImage($sizedFile);

				// -- Direct output...
				header("Content-Length: ".strlen($srcImg->getImageBlob()));
				echo $srcImg->getImageBlob();

				// -- Clean up...
				$srcImg->clear();
				$srcImg->destroy();
			}
		}
	}
?>