<?php

	/**
	 * AVE.cms
	 *
	 * @package AVE.cms
	 * @version 4.x
	 * @filesource
	 * @copyright © 2007-2014 AVE.cms, http://www.ave-cms.ru
	 *
	 * @license GPL v.2
	 */

	// Изображение (Каскад / Мега)
	function get_field_image_mega($field_value, $action, $field_id = 0, $tpl = '', $tpl_empty = 0, &$maxlength = null, $document_fields = array(), $rubric_id = 0, $default = null, $_tpl=null)
	{

		global $AVE_Template, $img_pixel;

		$fld_dir  = dirname(__FILE__) . '/';
		$tpl_dir  = $fld_dir . 'tpl/';
		$fld_name = basename($fld_dir);

		$lang_file = $fld_dir . 'lang/' . (defined('ACP')
			? $_SESSION['admin_language']
			: $_SESSION['user_language']) . '.txt';

		$AVE_Template->config_load($lang_file, 'lang');
		$AVE_Template->assign('config_vars', $AVE_Template->get_config_vars());
		$AVE_Template->config_load($lang_file, 'admin');

		$res = 0;
		$iniset_count = ini_get('max_file_uploads');

		switch ($action)
		{
			case 'edit':
				$items = array();
				$image_items = array();

				if ($_REQUEST['action'] != 'new' && trim($field_value) !== '')
				{
					$items = @unserialize($field_value); 

					if ($items != false)
					{
						foreach($items as $k => $v)
						{
							$image_item = explode('|', $v);

							$image[$k]['url'] = $image_item[0];
							$image[$k]['thumb'] = ($image_item[0] != '')
								? make_thumbnail(['size' => 't128x128', 'link' => $image_item[0]])
								: $img_pixel;

							$image[$k]['title'] = $image_item[1] ?? '';
							$image[$k]['description'] = $image_item[2] ?? '';
							$image[$k]['link'] = (isset($image_item[3]))
								? htmlspecialchars($image_item[3], ENT_QUOTES)
								: '';
						}

						if (! empty($image))
						{
							$image_items = $image;
						}
					}
				}

				$show_upload = true;
				$default = explode('|', $default);

				if (count($default) > 1)
					list ($path, $watermark, $position, $transparency) = $default;
				else
					{
						list ($path) = $default;
						$watermark = false;
						$position = null;
						$transparency = null;
					}

				if (preg_match("/%id/i", $path))
				{
					if ($_REQUEST['action'] != 'new')
					{
						$path_upload = trim(@str_replace('%id', $_REQUEST['Id'], $path), '/');
						$show_upload = true;
					}
					else
						{
							$path_upload = (! empty($path)) ? trim($default[0], '/') : '';
							$show_upload = false;
						}
				}
				else
					{
						$path_upload = (! empty($path)) ? trim($path, '/') : '';
						$show_upload = true;
					}

				$dir_upload = '/' . UPLOAD_DIR . '/' . ((! empty($path_upload)) ? $path_upload . '/' : '');
				$tpl_file = get_field_tpl($tpl_dir, $field_id, 'admin', $_tpl);

				$AVE_Template->assign('max_files', $AVE_Template->get_config_vars('max_f_f') . $iniset_count);
				$AVE_Template->assign('dir_upload', $AVE_Template->get_config_vars('upl_dir') . $dir_upload);
				$AVE_Template->assign('dir_uploaded', $dir_upload);
				$AVE_Template->assign('show_upload', $show_upload);
				$AVE_Template->assign('field_dir', $fld_name);
				$AVE_Template->assign('images', $image_items);
				$AVE_Template->assign('field_id', $field_id);
				$AVE_Template->assign('doc_id', (isset($_REQUEST['Id']) ? (int)$_REQUEST['Id'] : 0));

				return $AVE_Template->fetch($tpl_file);
				break;

			case 'doc':
				$items = (isset($field_value) && trim($field_value) !== '')
					? @unserialize($field_value)
					: [];

				$res = [];
				if ($items !== false && is_array($items))
				{
					foreach ($items as $image_item)
					{
						$field_data = explode('|', clean_php($image_item));

						if (! empty($field_data))
						{
							if ($tpl_empty)
							{
								$image_obj = array();
								$image_obj['url']			= $field_data[0];
								$image_obj['title']		    = isset($field_data[1]) ? $field_data[1] : '';
								$image_obj['description']	= isset($field_data[2]) ? $field_data[2] : '';
								$image_obj['link']			= isset($field_data[3]) ? $field_data[3] : '';
								$image_obj['http']          = (!empty($image_obj['link']) && preg_match('/^(http|https)/', $image_obj['link']));
								$res[] = $image_obj;
							}
							else
								{
									$rendered_item = preg_replace_callback(
										'/\[tag:parametr:(\d+)\]/i',
										function($data) use($field_data)
										{
											return isset($field_data[(int)$data[1]]) ? $field_data[(int)$data[1]] : '';
										},
										$tpl
									);

									$rendered_item = preg_replace_callback(
										'/\[tag:watermark:(.+?):([a-zA-Z]+):([0-9]+)\]/',
										function($m) { return watermarks($m[1], $m[2], $m[3]); },
										$rendered_item
									);

									$rendered_item = preg_replace_callback('/\[tag:([r|c|f|t|s]\d+x\d+r*):(.+?)]/', 'callback_make_thumbnail', $rendered_item);
									$res[] = $rendered_item;
								}
						}
					}
				}

				$tpl_file = get_field_tpl($tpl_dir, $field_id, 'doc', $_tpl);

				if ($tpl_empty && $tpl_file)
				{
					$AVE_Template->assign('field_id', $field_id);
					$AVE_Template->assign('field_value', $res);
					$AVE_Template->assign('field_count', count($res));
					$AVE_Template->assign('rubric_id', $rubric_id);
					$AVE_Template->assign('default', $default);
					return $AVE_Template->fetch($tpl_file);
				}

				// Если картинок нет, возвращаем пустую строку, а не шаблон с тегами
				return (! empty($res)) ? implode(PHP_EOL, $res) : '';
				break;

			case 'req':
				$items = (isset($field_value) && trim($field_value) !== '')
					? @unserialize($field_value)
					: [];

				$res = array();
				if ($items !== false && is_array($items))
				{
					foreach ($items as $image_item)
					{
						$field_data = explode('|', clean_php($image_item));

						if (! empty($field_data))
						{
							if ($tpl_empty)
							{
								$image_obj = array();
								$image_obj['url']			= $field_data[0];
								$image_obj['title']		    = isset($field_data[1]) ? $field_data[1] : '';
								$image_obj['description']	= isset($field_data[2]) ? $field_data[2] : '';
								$image_obj['link']			= isset($field_data[3]) ? $field_data[3] : '';
								$image_obj['http']          = (!empty($image_obj['link']) && preg_match('/^(http|https)/', $image_obj['link']));
								$res[] = $image_obj;
							}
							else
								{
									$rendered_item = preg_replace_callback(
										'/\[tag:parametr:(\d+)\]/i',
										static function($data) use($field_data)
										{
											return isset($field_data[(int)$data[1]]) ? $field_data[(int)$data[1]] : '';
										},
										$tpl
									);
									$rendered_item = preg_replace_callback(
										'/\[tag:watermark:(.+?):([a-zA-Z]+):([0-9]+)\]/',
										function($m) { return watermarks($m[1], $m[2], $m[3]); },
										$rendered_item
									);

									$rendered_item = preg_replace_callback('/\[tag:([r|c|f|t|s]\d+x\d+r*):(.+?)]/', 'callback_make_thumbnail', $rendered_item);
									$res[] = $rendered_item;
								}
						}
					}
				}

				$tpl_file = get_field_tpl($tpl_dir, $field_id, 'req', $_tpl);

				if ($tpl_empty && $tpl_file)
				{
					$AVE_Template->assign('field_id', $field_id);
					$AVE_Template->assign('field_value', $res);
					$AVE_Template->assign('field_count', count($res));
					$AVE_Template->assign('rubric_id', $rubric_id);
					$AVE_Template->assign('default', $default);
					return $AVE_Template->fetch($tpl_file);
				}

				// Если данных нет, возвращаем пустую строку
				return (! empty($res)) ? implode(PHP_EOL, $res) : '';
				break;

			case 'save':
				$field_value_new = [];
				if (is_array($field_value))
				{
					foreach ($field_value as $v)
					{
						if (! empty($v['url']))
						{
							$field_value_new[] = $v['url']
							. ($v['title'] ? '|' . stripslashes(htmlspecialchars($v['title'], ENT_QUOTES)) : '|')
							. ($v['description'] ? '|' . stripslashes(htmlspecialchars($v['description'], ENT_QUOTES)) : '|')
							. ($v['link'] ? '|' . ltrim($v['link'], '/') : '|');
						}
					}
				}
				return (!empty($field_value_new)) ? serialize($field_value_new) : '';
				break;

			case 'api':
				if (empty($field_value)) return $field_value;
				$images = @unserialize($field_value);
				if (!$images) return false;
				$items = [];
				foreach ($images AS $k => $v)
				{
					$_item = explode('|', $v);
					$items[$k] = [
						'url'         => $_item[0],
						'title'       => ($_item[1] ?? ''),
						'description' => ($_item[2] ?? ''),
						'link'        => ($_item[3] ?? '')
					];
				}
				return $items;
				break;

			case 'name' :
				return $AVE_Template->get_config_vars('name');
				break;

			case 'upload':
				$error = false;
				$search = ['%d', '%m', '%Y'];
				$replace = [date('d'), date('m'), date('Y')];

				$files_input = 'mega_files' . '_' . $_REQUEST['field_id'] . '_' . $_REQUEST['doc_id'];
				$default = explode('|', $default);
				$path_upload  = $default[0] ?? '';
				$watermark    = $default[1] ?? false;
				$position     = $default[2] ?? 'center';
				$transparency = $default[3] ?? '50';

				if (! empty($path_upload)) $path_upload = str_replace($search, $replace, $path_upload);

				if(preg_match("/%id/i", $path_upload))
					$path = trim(@str_replace('%id', $_REQUEST['doc_id'], $path_upload), '/');
				else
					$path = (! empty($path_upload)) ? $path_upload : '';

				if (! function_exists('getExtension'))
				{
					function getExtension($file) {
						return pathinfo($file, PATHINFO_EXTENSION);
					}
				}

				$valid_formats = array("jpg", "png", "gif", "bmp", "jpeg", "webp");
				$dir = '/' . UPLOAD_DIR . '/' . ((! empty($path)) ? trim($path, '/') . '/' : '');
				$dir_abs = BASE_DIR . $dir;

				if (!is_dir($dir_abs) && !mkdir($dir_abs, 0777, true) && !is_dir($dir_abs)) {
					throw new \RuntimeException(sprintf('Directory "%s" was not created', $dir_abs));
				}

				$new_files = []; $thumbs = [];
				foreach ($_FILES[$files_input]['name'] as $name => $value)
				{
					$filename = strtolower(stripslashes(prepare_url($_FILES[$files_input]['name'][$name])));
					$ext = strtolower(getExtension($filename));

					if (in_array($ext, $valid_formats))
					{
						if (file_exists($dir_abs . $filename)) $filename = rand(1000, 9999) . '_' . $filename;
						if (@move_uploaded_file($_FILES[$files_input]['tmp_name'][$name], $dir_abs . $filename))
						{
							$new_files[] = $filename;
							$thumbs[] = make_thumbnail(array('link' => $dir . $filename, 'size' => 't128x128'));
							if ((bool)$watermark) watermarks($dir . $filename, $position, $transparency);
						} else { $error = true; }
					} else { $error = true; @unlink($_FILES[$files_input]['tmp_name'][$name]); }
				}

				if ($error !== true)
				{
					echo json_encode(array(
						'files' => $new_files, 'thumbs' => $thumbs, 'dir' => $dir, 'respons' => 'success',
						'message' => $AVE_Template->get_config_vars('resp_s_m'),
						'header' => $AVE_Template->get_config_vars('resp_s_h'),
						'theme' => 'accept'
					));
				} else {
					echo json_encode(array(
						'respons' => 'error', 'message' => $AVE_Template->get_config_vars('resp_e_m'),
						'header' => $AVE_Template->get_config_vars('resp_e_h'), 'theme' => 'error'
					));
				}
				exit;
		}

		return $res ?: '';
	}