<?php

	set_time_limit(0);

	$height=$_POST["height"];
	if(intval($height)<=0){
		echo "Given height is invalid";
		exit;
	}

	$width=$_POST["width"];
	if(intval($width)<=0){
		echo "Given width is invalid";
		exit;
	}

	$path=$_POST["path"];
	if(!file_exists($path)){
		echo "No file or directory at given pathname";
		exit;
	}

	$thumb_dir=$_POST["thumb_dir"];
	if(!file_exists($thumb_dir)){
		mkdir($thumb_dir);
		chmod($thumb_dir,0777);
	}

		if ( !function_exists('image_type_to_extension') ) {

			function image_type_to_extension ($type, $dot = true){
				$e = array ( 1 => 'gif', 'jpeg', 'png', 'swf', 'psd', 'bmp',
					'tiff', 'tiff', 'jpc', 'jp2', 'jpf', 'jb2', 'swc',
					'aiff', 'wbmp', 'xbm');

				// We are expecting an integer.
				$type = (int)$type;
				if (!$type) {
					trigger_error( '...come up with an error here...', E_USER_NOTICE );
					return null;
				}

				if ( !isset($e[$type]) ) {
					trigger_error( 'Type not recognized', E_USER_NOTICE );
					return null;
				}

				return ($dot ? '.' : '') . $e[$type];
			}
		}


	if(is_dir($path)){
		$d=dir($path);
		$atLeastOne=false;
		while(false !== ($entry = $d->read())){
			$checkType=@getimagesize($path."/".$entry);
			if($checkType){
				$check=convert($width,$height,$path."/".$entry,$thumb_dir);
				$atLeastOne=$check||$atLeastOne;
				//echo $entry;
			}
		}

		if(!$atLeastOne){
			echo "No images resized";
			exit;
		}
	}
	else{
		$check=convert($width,$height,$path,$thumb_dir);
		if(!$check){
			echo "Image conversion failed";
			exit;
		}
	}

	function convert($w,$h,$p,$t){
		$size = getimagesize($p);

		if(!$size){
			$file = fopen("photouploadlog", 'a');
			fwrite($file,"Image appears to be invalid- file:$p time:".time()."\n");
			return false;
		}

		$ext=image_type_to_extension($size[2]);

		$x=pathinfo($p);
		$thumbname=substr($p,0,0-strlen(strrchr($p,"."))).".jpg";
		$x=pathinfo($thumbname);
		$thumbname=$t."/BFS-".$x['basename'];

		$uploaded;
		$upname=$p;

		if($ext==".jpg"||$ext==".jpeg")
			$uploaded=imagecreatefromjpeg($p);
		elseif($ext==".gif")
			$uploaded=imagecreatefromgif($p);
		elseif($ext==".png")
			$uploaded=imagecreatefrompng($p);
		else{
			$file = fopen("photouploadlog", 'a');
			fwrite($file,"Image extension appears to be invalid- file:$p time:".time()."\n");
			return false;
		}

		if(!$uploaded){
			$file = fopen("photouploadlog", 'a');
			fwrite($file,"Source image appears to be invalid- file:$p time:".time()."\n");
			return false;
		}

		$ratio=1.0;
		if($size[0]/$w>$size[1]/$h)
			$ratio=1/($size[0]/$w);
		else
			$ratio=1/($size[1]/$h);

		$width=floor($ratio*$size[0]);
		$height=floor($ratio*$size[1]);

		$dim=min($size[0],$size[1]);
		$thumb=imagecreatetruecolor($w,$h);
		$white=imagecolorallocate($thumb,255,255,255);
		imagefill($thumb,0,0,$white);

		imagecopyresampled($thumb,$uploaded,floor(($w-$width)/2),floor(($h-$height)/2),0,0,$width,$height,$size[0],$size[1]);

		if($ext==".jpg"||$ext==".jpeg"){
			imagejpeg($thumb,$thumbname);
		}
		elseif($ext==".gif"){
			imagegif($thumb,$thumbname);
		}
		elseif($ext==".png"){
			imagepng($thumb,$thumbname);
		}

		imagedestroy($thumb);
		imagedestroy($uploaded);

		if(file_exists($thumbname)){
			$file = fopen("photosuccesses", 'a');
			fwrite($file,"thumb: $thumbname, width: ".$size[0].", height: ".$size[1].", ratio: $ratio, adjusted width: $width, adjusted height: $height\n");
			return true;
		}
		else{
			$file = fopen("photofailures", 'a');
			fwrite($file,"thumb: $thumbname, width: ".$size[0].", height: ".$size[1].", ratio: $ratio, adjusted width: $width, adjusted height: $height\n");
			return false;
		}
	}

	echo "good";

?>