<?php
/* Copyright (C) 2018	Andreu Bisquerra	<jove@bisquerra.com>
 *
 * 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 <https://www.gnu.org/licenses/>.
 */

// This page return an image of public photos of a category or product.
// Test to check image can be publically viewed is done inside the viewimage.php wrapper.

//if (! defined('NOREQUIREUSER'))	define('NOREQUIREUSER','1');	// Not disabled cause need to load personalized language
//if (! defined('NOREQUIREDB'))		define('NOREQUIREDB','1');		// Not disabled cause need to load personalized language
if (!defined('NOREQUIRESOC')) {
	define('NOREQUIRESOC', '1');
}
//if (! defined('NOREQUIRETRAN'))		define('NOREQUIRETRAN','1');
if (!defined('NOTOKENRENEWAL')) {
	define('NOTOKENRENEWAL', '1');
}
if (!defined('NOREQUIREMENU')) {
	define('NOREQUIREMENU', '1');
}
if (!defined('NOREQUIREHTML')) {
	define('NOREQUIREHTML', '1');
}
if (!defined('NOREQUIREAJAX')) {
	define('NOREQUIREAJAX', '1');
}

if (!defined('INCLUDE_PHONEPAGE_FROM_PUBLIC_PAGE')) {
	require '../../main.inc.php'; // Load $user and permissions
}

$id = GETPOST('id', 'int');
$w = GETPOST('w', 'int');
$h = GETPOST('h', 'int');
$query = GETPOST('query', 'alpha');

if (!isModEnabled('takepos')) {
	accessforbidden('Module not enabled');
}


/*
 * View
 */

if ($query == "cat") {
	require_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
	require_once DOL_DOCUMENT_ROOT.'/core/lib/categories.lib.php';

	$object = new Categorie($db);
	$result = $object->fetch($id);

	$upload_dir = $conf->categorie->multidir_output[$object->entity];
	$pdir = get_exdir($object->id, 2, 0, 0, $object, 'category').$object->id."/photos/";
	$dir = $upload_dir.'/'.$pdir;

	foreach ($object->liste_photos($dir) as $key => $obj) {
		if ($obj['photo_vignette']) {
			$filename = $obj['photo_vignette'];
		} else {
			$filename = $obj['photo'];
		}
		$file = DOL_URL_ROOT.'/viewimage.php?cache=1&publictakepos=1&modulepart=category&entity='.$object->entity.'&file='.urlencode($pdir.$filename);
		header('Location: '.$file);
		exit;
	}
	header('Location: ../../public/theme/common/nophoto.png');
	exit;
} elseif ($query == "pro") {
	require_once DOL_DOCUMENT_ROOT."/product/class/product.class.php";

	$objProd = new Product($db);
	$objProd->fetch($id);
	$image = $objProd->show_photos('product', $conf->product->multidir_output[$objProd->entity], 'small', 1);

	$match = array();
	preg_match('@src="([^"]+)"@', $image, $match);
	$file = array_pop($match);
	if ($file == "") {
		header('Location: ../../public/theme/common/nophoto.png');
		exit;
	} else {
		if (!defined('INCLUDE_PHONEPAGE_FROM_PUBLIC_PAGE')) {
			header('Location: '.$file.'&cache=1');
			exit;
		} else {
			header('Location: '.$file.'&cache=1&publictakepos=1&modulepart=product');
			exit;
		}
	}
} else {
	// TODO We don't need this. Size of image must be defined on HTML page, image must NOT be resized when downloaded.

	// The file
	$filename = $query.".jpg";

	// Dimensions
	list($width, $height) = getimagesize($filename);
	$new_width = $w;
	$new_height = $h;

	// Resample
	$image_p = imagecreatetruecolor($new_width, $new_height);
	$image = imagecreatefromjpeg($filename);
	imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

	// Output
	imagejpeg($image_p, null, 100);
}
