<?php
if(!defined('IN_INDEX')) {
	header('Location: ../index.php');
	exit;
}

// upload folder:
$uploaded_images_path = 'images/avatars/';

if ($settings['avatars'] > 0 && isset($_SESSION[$settings['session_prefix'].'user_id'])) {
	$avatarInfo = getAvatar($_SESSION[$settings['session_prefix'].'user_id']);
	$filename = $avatarInfo === false ? false : $avatarInfo[1];

	// remove existing avatar
	if (isset($_GET['delete'])) {
		if ($filename !== false && file_exists($uploaded_images_path.$filename)) {
			@chmod($uploaded_images_path.$filename, 0777);
			@unlink($uploaded_images_path.$filename);
		}
		header('Location: index.php?mode=avatar&deleted=true');
		exit;
	}

	// upload a new avatar
	if (isset($_FILES['probe']) && $_FILES['probe']['size'] != 0 && !$_FILES['probe']['error']) {
		unset($errors);
		$image_info = getimagesize($_FILES['probe']['tmp_name']);

		if(!is_array($image_info) || $image_info[2] != 1 && $image_info[2] != 2 && $image_info[2] != 3) $errors[] = 'invalid_file_format';

		if(empty($errors)) {
			if($_FILES['probe']['size'] > $settings['avatar_max_filesize']*1000 || $image_info[0] > $settings['avatar_max_width'] || $image_info[1] > $settings['avatar_max_height']) {
				#$compression = 10;
				$width  = $image_info[0];
				$height = $image_info[1];

				// resize if too large:
				if($width != $settings['avatar_max_width'] || $height != $settings['avatar_max_height']) {
					if($width >= $height) {
						$new_width  = $settings['avatar_max_width'];
						$new_height = intval($height*$new_width/$width);
					}
					else {
						$new_height = $settings['avatar_max_height'];
						$new_width = intval($width*$new_height/$height);
					}
				}
				else {
					$new_width=$width;
					$new_height=$height;
				}

				$img_tmp_name = uniqid(rand()).'.tmp';

				for($compression = 100; $compression > 1; $compression = $compression - 10) {
					if(!resize_image($_FILES['probe']['tmp_name'], $uploaded_images_path.$img_tmp_name, $new_width, $new_height, $compression)) {
						$file_size = $_FILES['probe']['size']; // @filesize($_FILES['probe']['tmp_name']);
						break;
					}
					$file_size = @filesize($uploaded_images_path.$img_tmp_name);
					if($image_info[2]!=2 && $file_size > $settings['avatar_max_filesize']*1000 || $file_size <= $settings['avatar_max_filesize']*1000) 
						break;
				}
				if($file_size > $settings['avatar_max_filesize']*1000) {
					$smarty->assign('width',$image_info[0]);
					$smarty->assign('height',$image_info[1]);
					$smarty->assign('filesize',number_format($_FILES['probe']['size']/1000,0,',',''));
					$smarty->assign('max_width',$settings['avatar_max_width']);
					$smarty->assign('max_height',$settings['avatar_max_height']);
					$smarty->assign('max_filesize',$settings['avatar_max_filesize']);
					$errors[] = 'file_too_large';
				}
				if(isset($errors)) {
					if(file_exists($uploaded_images_path.$img_tmp_name)) {
						@chmod($uploaded_images_path.$img_tmp_name, 0777);
						@unlink($uploaded_images_path.$img_tmp_name);
					}
				}
			}
		}

		if(empty($errors)) {
			$nr = 0;
			switch($image_info[2]) {
				case 1: $filename = $_SESSION[$settings['session_prefix'].'user_id'].'_'.time().'.gif'; break;
				case 2: $filename = $_SESSION[$settings['session_prefix'].'user_id'].'_'.time().'.jpg'; break;
				case 3: $filename = $_SESSION[$settings['session_prefix'].'user_id'].'_'.time().'.png'; break;
			}
			if(isset($img_tmp_name)) {
				@rename($uploaded_images_path.$img_tmp_name, $uploaded_images_path.$filename) or $errors[] = 'upload_error';
				$smarty->assign('image_downsized',true);
				$smarty->assign('new_width',$new_width);
				$smarty->assign('new_height',$new_height);
				$smarty->assign('new_filesize',number_format($file_size/1000,0,',',''));
			}
			else {
				@move_uploaded_file($_FILES['probe']['tmp_name'], $uploaded_images_path.$filename) or $errors[] = 'upload_error';
			}
		}

		if (empty($errors)) {
			@chmod($uploaded_images_path.$filename, 0644);
			$smarty->assign('avatar_uploaded', true);
		}
		else {
			$smarty->assign('errors',$errors);
			$smarty->assign('form', true);
		}
	}

	// show avatar
	if ($filename !== false && file_exists($uploaded_images_path.$filename)) {
		$avatar = $uploaded_images_path.$filename;
	}

	if (isset($avatar)) {
		//$avatar .= '?u='.uniqid();
		$smarty->assign('avatar', $avatar);
	} else {
		$smarty->assign('upload', 'true');
	}
	if (isset($_GET['deleted']))
		$smarty->assign('avatar_deleted', true);

	if (empty($errors) && isset($_FILES['probe']['error'])) {
		$smarty->assign('server_max_filesize', ini_get('upload_max_filesize'));
		$errors[] = 'upload_error_2';
		$smarty->assign('errors', $errors);
	}
}

$template = 'avatar.tpl';
?>