<?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';
	const ACF_DATE_CLASS = 'dfb_date';

	/*
	* 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',
		'dates'       => ['checked'=>true,  'title'=>'dates',              'description'=>"gerer des dates pour acf dans n'importe quels formats (fonctionne bien pour divi, pas certain pour d'autres plugins)"],
		'calculations'=> ['checked'=>true,  'title'=>'calculations',       'description'=>"afficher le total des calculs dès l'ouverture des formulaires"],
		'hide_show'   => ['checked'=>true,  'title'=>'masquer les offres', 'description'=>"permettre de masquer les offres en editant un formulaire, sans les supprimer"],
		'modals'      => ['checked'=>false, 'title'=>'modals',             'description'=>"permettre plusieurs modals sur une meme page"],
		'urls'        => ['checked'=>false, 'title'=>'urls',               'description'=>"permettre de rentrer des urls sans 'http://'"],
	];

	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'], '', '', 'no');
		}
		$patches_option = unserialize($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])) {
				// updates the title and the description
				$patches_option[$patch]['title'] = $data['title'];
				$patches_option[$patch]['description'] = $data['description'];
			}
			else {
				// add the option
				$patches_option[$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;
	}

	/*
	* if there is elements to skip, add the filter
	*
	*/
	public static function init_skip_hook() {
		if (true === self::$_has_elements_to_skip) {
			add_filter("update_post_metadata", __NAMESPACE__.'\filter_elements_to_skip', 10, 5);
		}
	}

	/*
	* after insertion finished, removes filter and reset variables
	*
	*/
	public static function end_skip_hook() {
		if (true === self::$_has_elements_to_skip) {
			remove_filter("update_post_metadata", __NAMESPACE__.'\filter_elements_to_skip');
		}
		self::$_post_id = 0;
		self::$_has_elements_to_skip = false;
		self::$_skip_elements = array();
	}


	/*
	* ---------------------------------------------------------------------------
	* DATES
	* stores the real dates in the database
	*
	*/
	private static $dates_option = 'dfb_acf_dates_option';

	/*
	* stores acf dates by post_id
	*
	*/
	public static function update_acf_date($post_id, $acf_key, $acf_date) {
		if (empty($acf_date)) {
			return;
		}
		$dates = get_option(self::$dates_option);

		/*
		* if option does not exists, add it with its first value
		*
		*/
		if ($dates === false) {
			$dates[$post_id] = array($acf_key => $acf_date);
			add_option(self::$dates_option, $dates, '', false);
			return;
		}

		/*
		* if the option does not contains key for this post_id, add it
		*
		*/
		if (!isset($dates[$post_id])) {
			$dates[$post_id] = array($acf_key => $acf_date);
			update_option(self::$dates_option, $dates, false);
			return;
		}

		/*
		* if the post_id dont contains this acf field yet just add it
		*
		*/
		if (!isset($dates[$post_id][$acf_key])) {
			$dates[$post_id][$acf_key] = $acf_date;
			update_option(self::$dates_option, $dates, false);
			return;
		}

		/*
		* if the acf_key already exists,
		* only update option if it is different
		*
		*/
		if ($dates[$post_id][$acf_key] !== $acf_date) {
			$dates[$post_id][$acf_key] = $acf_date;
			update_option(self::$dates_option, $dates, false);
			return;
		}
	}

	/*
	* if acf_date exists for this acf field, use it instead of the value
	* return the date in acf format 'Ymd' or false if doesnt exists
	*
	*/
	public static function get_acf_date($post_id, $acf_key) {
		$dates = get_option(self::$dates_option);

		if ($dates === false) {
			return false;
		}
		if (!isset($dates[$post_id])) {
			return false;
		}
		if (!isset($dates[$post_id][$acf_key])) {
			return false;
		}

		/*
		* returns the date, or false if is empty
		*
		*/
		$date = $dates[$post_id][$acf_key];
		if (empty($date)) {
			return false;
		}
		return $date;
	}


}


?>