<?php
namespace FBPATCH;

/*
* it means someone outside wp is accessing the file, in this case kill it.
*/
if (!defined('ABSPATH')) {
	die('You can not access this file!');
}


/*
*
*/
class Fbpatch {
	const SLUG_TOOGLE_ADMIN_MENU = ['_name'=>'toogle_admin_menu_url_fbpatch', 'toggle'=>'toggle', 'show'=>'show', 'hide'=>'hide'];
	const OPTION_TOGGLE_MENU = ['_name'=>'toggle_admin_menu_option_fbpatch', 'show'=>'show', 'hide'=>'hide'];
	const NONCE = ['_name'=>'nonce_name', '_action'=>'action_name'];
	const ADMIN_POST_PATCH_CHOICE = 'add_patches';

	/*
	* get path an url from plugin root
	*
	*/
	public static function root_path() {
		return plugin_dir_path(__DIR__);
	}
	public static function root_url() {
		return plugin_dir_url(__DIR__);
	}
		

	/*
	* ---------------------------------------------------------------------------
	* OPTIONS
	* these functions are used to select which patch is applied
	*
	*/

	private static $_patches = [
		'_name'=>'fbpatch_list_of_patches',
		'calculations'=>['checked'=>true,  'title'=>'calculations title', 'description'=>'calculation description'],
		'hide_show'   =>['checked'=>true,  'title'=>'hide/show title',    'description'=>'hide/show description'],
		'modals'      =>['checked'=>false, 'title'=>'modals title',       'description'=>'modals description'],
		'urls'        =>['checked'=>false, 'title'=>'urls title',         'description'=>'urls description'],
	];

	private static function set_option_patches() {
		/*
		* get the list of patches in option
		* create option if needed
		*
		*/
		$raw_patches_option = get_option(self::$_patches['_name']);
		if (false === $raw_patches_option) {
			add_option(self::$_patches['_name']);
		}
		$patches_option = unserialize($raw_patches_option);
		if (empty($patches_option)) {
			$patches_option = array();
		}

		/*
		* if the option miss patches, add them
		*
		*/
		foreach (self::$_patches as $patch => $data) {
			if ($patch === '_name') {
				continue;
			}
			if (isset($patches_option[$patch])) {
				continue;
			}
			$patches_option[$patch] = $data;
		}

		/*
		* if the option has additional patches, delete them
		*
		*/
		foreach ($patches_option as $patch => $data) {
			if (isset(self::$_patches[$patch])) {
				continue;
			}
			unset($patches_option[$patch]);
		}

		/*
		* change the option list with the update patches
		*
		*/
		ksort($patches_option);
		$serialize_patches_option = serialize($patches_option);
		update_option(self::$_patches['_name'], $serialize_patches_option);
	}
	public static function get_patches() {
		self::set_option_patches();
		$patches = get_option(self::$_patches['_name']);
		return unserialize($patches);
	}
	public static function set_patches($patches_on) {
		/*
		* loop through the option list and update occording to the received list
		*
		*/
		$raw_patches = get_option(self::$_patches['_name']);
		$patches_option = unserialize($raw_patches);
		foreach($patches_option as $patch => $data) {
			if (in_array($patch, $patches_on)) {
				$patches_option[$patch]['checked'] = true;
			}
			else {
				$patches_option[$patch]['checked'] = false;
			}
		}

		/*
		* change the option list with the update patches
		*
		*/
		ksort($patches_option);
		$serialize_patches_option = serialize($patches_option);
		update_option(self::$_patches['_name'], $serialize_patches_option);
	}

	/*
	* this function will include the files of the different patches if they are set in the options
	*
	*/
	public static function init_hook() {
		$patches = Fbpatch::get_patches();
		foreach($patches as $patch => $data) {
			if ($data['checked'] === true) {
				include_once(self::root_path() . '/php/patches/'.$patch.'.php');
			}
		}
	}


	/*
	* ---------------------------------------------------------------------------
	* HIDE SHOW
	* to hide the chosen elements of the form without deleting the data in acf fields
	*
	*/

	private static $_post_id = 0;
	private static $_has_elements_to_skip = false;
	private static $_skip_elements = array();

	public static function is_post_id($id) {
		return self::$_post_id == $id;
	}
	public static function is_to_skip($key) {
		return in_array($key, self::$_skip_elements);
	}

	/*
	* create an array of the elements to forget
	*
	*/
	public static function set_post_elements_to_forget($id, $is_to_skip, $skip_array) {
		self::$_post_id = $id;
		self::$_has_elements_to_skip = $is_to_skip;
		self::$_skip_elements = $skip_array;

		error_log("self::_post_id: " . json_encode(self::$_post_id));
		error_log("self::_skip_elements: " . json_encode(self::$_skip_elements));
	}

	/*
	* if there is elements to skip, add the filter, otherwise removes it (to be sure)
	*
	*/
	public static function init_skip_hook() {
		if (false === self::$_has_elements_to_skip) {
			remove_filter("update_post_metadata", __NAMESPACE__.'\filter_elements_to_skip');
			return;
		}

		add_filter("update_post_metadata", __NAMESPACE__.'\filter_elements_to_skip', 10, 5);
	}

	/*
	* after insertion finished, removes filter
	*
	*/
	public static function end_skip_hook() {
		remove_filter("update_post_metadata", __NAMESPACE__.'\filter_elements_to_skip');
	}


}


?>