<?php
/**
 * Register all actions and filters for the plugin.
 *
 * @package Inqyra
 */

// If this file is called directly, abort.
if (!defined('WPINC')) {
    die;
}

/**
 * Loader class for registering hooks.
 */
class Inqyra_Loader {

    /**
     * Array of actions registered with WordPress.
     *
     * @var array
     */
    protected $actions = [];

    /**
     * Array of filters registered with WordPress.
     *
     * @var array
     */
    protected $filters = [];

    /**
     * Add a new action to the collection.
     *
     * @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 function to call.
     * @param int    $priority      The priority at which the function should be fired.
     * @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.
     *
     * @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 function to call.
     * @param int    $priority      The priority at which the function should be fired.
     * @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);
    }

    /**
     * Utility function to register hooks into a collection.
     *
     * @param array  $hooks         The collection of hooks.
     * @param string $hook          The name of the WordPress hook.
     * @param object $component     A reference to the instance of the object.
     * @param string $callback      The name of the function to call.
     * @param int    $priority      The priority at which the function should be fired.
     * @param int    $accepted_args The number of arguments that should be passed.
     * @return array The collection of hooks with the new addition.
     */
    private function add($hooks, $hook, $component, $callback, $priority, $accepted_args) {
        $hooks[] = [
            'hook'          => $hook,
            'component'     => $component,
            'callback'      => $callback,
            'priority'      => $priority,
            'accepted_args' => $accepted_args,
        ];

        return $hooks;
    }

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

        foreach ($this->actions as $hook) {
            add_action(
                $hook['hook'],
                [$hook['component'], $hook['callback']],
                $hook['priority'],
                $hook['accepted_args']
            );
        }
    }
}
