<?php
/**
 * Registers all actions and filters for the plugin.
 *
 * @link       https://ancestorpress.com/
 * @since      0.1.0
 * @package    APFAAR_Family_Archive
 * @subpackage APFAAR_Family_Archive/includes
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Orchestrates the hooks of the plugin.
 *
 * Maintains a list of all hooks registered with WordPress and executes them
 * when the plugin is loaded. (Same pattern as AP Family Trees.)
 *
 * @since      0.1.0
 * @package    APFAAR_Family_Archive
 * @subpackage APFAAR_Family_Archive/includes
 */
class APFAAR_Loader {

	/**
	 * The array of actions registered with WordPress.
	 *
	 * @since  0.1.0
	 * @access protected
	 * @var    array $actions
	 */
	protected $actions;

	/**
	 * The array of filters registered with WordPress.
	 *
	 * @since  0.1.0
	 * @access protected
	 * @var    array $filters
	 */
	protected $filters;

	/**
	 * Initialise the collections.
	 *
	 * @since 0.1.0
	 */
	public function __construct() {
		$this->actions = array();
		$this->filters = array();
	}

	/**
	 * Add a new action to the collection.
	 *
	 * @since 0.1.0
	 * @param string $hook          The name of the WordPress action.
	 * @param object $component     A reference to the instance of the object.
	 * @param string $callback      The name of the callback.
	 * @param int    $priority      The priority at which the function should fire.
	 * @param int    $accepted_args The number of arguments that should be passed.
	 */
	public function add_action( $hook, $component, $callback, $priority = 10, $accepted_args = 1 ) {
		$this->actions = $this->add( $this->actions, $hook, $component, $callback, $priority, $accepted_args );
	}

	/**
	 * Add a new filter to the collection.
	 *
	 * @since 0.1.0
	 * @param string $hook          The name of the WordPress filter.
	 * @param object $component     A reference to the instance of the object.
	 * @param string $callback      The name of the callback.
	 * @param int    $priority      The priority at which the function should fire.
	 * @param int    $accepted_args The number of arguments that should be passed.
	 */
	public function add_filter( $hook, $component, $callback, $priority = 10, $accepted_args = 1 ) {
		$this->filters = $this->add( $this->filters, $hook, $component, $callback, $priority, $accepted_args );
	}

	/**
	 * Add a hook to the collection.
	 *
	 * @since  0.1.0
	 * @access private
	 * @param  array  $hooks         The collection of hooks being registered.
	 * @param  string $hook          The name of the WordPress filter/action.
	 * @param  object $component     A reference to the instance of the object.
	 * @param  string $callback      The name of the function definition on the $component.
	 * @param  int    $priority      The priority at which the function should fire.
	 * @param  int    $accepted_args The number of arguments that should be passed.
	 * @return array                 The collection of actions and filters registered with WordPress.
	 */
	private function add( $hooks, $hook, $component, $callback, $priority, $accepted_args ) {
		$hooks[] = array(
			'hook'          => $hook,
			'component'     => $component,
			'callback'      => $callback,
			'priority'      => $priority,
			'accepted_args' => $accepted_args,
		);
		return $hooks;
	}

	/**
	 * Register all filters and actions with WordPress.
	 *
	 * @since 0.1.0
	 */
	public function run() {
		foreach ( $this->filters as $hook ) {
			add_filter( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
		}
		foreach ( $this->actions as $hook ) {
			add_action( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
		}
	}
}
