<?php
// include("header.php");

require('settings.php');
require('playlist.php');

function processimage($srcname) {

	$src = @imagecreatefromjpeg($srcname);
	if (!$src) { 
		$src = @imagecreatefrompng($srcname);
		if (!$src) {
			$src = @imagecreatefromgif($srcname);
		}
	}
	if (!$src) { return false; }

	// Capture the size of the uploaded image
	$sw = imagesx($src);
	$sh = imagesy($src);

	if ($sw == 0 || $sh == 0) { 
	return;
	}

	// Try "fit width"
	$center = true;
	$sdx = 0; 
	$sdy = 0;
	
	$nw = W;
	$nh = round($sh * ($nw / $sw)); // calc nh to keep ratio
	if ($nh >= H) {
	//    if ($center) { $sdy = round(($nh - H) / 2); }
		if ($center) { $sdy = round( (($nh - H) / 2) * ($sw / $nw) ); }
	
	} else {
	// if height is to small "fit height"
		$nh = H;
		$nw = round($sw * ($nh / $sh));
		if ($center) { $sdx = round( (($nw - W) / 2) * ($sh / $nh) ); }
	}

	// Create a blank image
	$scaledimage = imagecreatetruecolor(W, H);
	// Copy from source and resize
	imagecopyresampled($scaledimage, $src, 0, 0, $sdx, $sdy, W, H, $sw-(2 * $sdx), $sh-(2 * $sdy));
	// Clean up memory
	imagedestroy($src);

	$base = date('Ymd_His')."_".getmypid();
	$fsname = IMAGEFOLDER.$base.".png";
	$thname = IMAGEFOLDER.$base."_th.png";

	// Write to a file
	imagepng($scaledimage,$fsname);
	// Create a blank image
	$scaledthumb = imagecreatetruecolor(TH_W, TH_H);
	// Copy from source and resize
	imagecopyresampled($scaledthumb, $scaledimage, 0, 0, 0, 0, TH_W, TH_H, W, H);
	// Write to a file
	imagepng($scaledthumb,$thname);
	// Clean up memory
	imagedestroy($scaledthumb);
	imagedestroy($scaledimage);
	return $base;
}

$upload = $_FILES['uploadedfile']['tmp_name'];

$uploadWorked = false;
if (is_uploaded_file($upload)) {
	$base = processimage($upload);
	if ($base):
		playlist_add($base, $_REQUEST['insertbefore']);
		$uploadWorked = true;
		header('Location: success.php');
	endif;
}
if (!$uploadWorked):
	header('Location: error.php');
endif;
?>