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

// Prevent direct access
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Class WBC_Loader
 *
 * Maintains lists of all hooks registered throughout the plugin
 * and registers them with WordPress.
 */
class WBC_Loader {

    /**
     * Array of actions registered with WordPress
     *
     * @var array
     */
    protected $actions = array();

    /**
     * Array of filters registered with WordPress
     *
     * @var array
     */
    protected $filters = array();

    /**
     * Initialize the loader
     */
    public function __construct() {
        $this->actions = array();
        $this->filters = array();
    }

    /**
     * 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 on which the action is defined.
     * @param string $callback      The name of the function definition on the $component.
     * @param int    $priority      Optional. The priority at which the function should be fired. Default 10.
     * @param int    $accepted_args Optional. The number of arguments that should be passed to the callback. Default 1.
     */
    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 on which the filter is defined.
     * @param string $callback      The name of the function definition on the $component.
     * @param int    $priority      Optional. The priority at which the function should be fired. Default 10.
     * @param int    $accepted_args Optional. The number of arguments that should be passed to the callback. Default 1.
     */
    public function add_filter( $hook, $component, $callback, $priority = 10, $accepted_args = 1 ) {
        $this->filters = $this->add( $this->filters, $hook, $component, $callback, $priority, $accepted_args );
    }

    /**
     * A utility function for registering hooks into a single collection
     *
     * @param array  $hooks         The collection of hooks being registered.
     * @param string $hook          The name of the WordPress filter being registered.
     * @param object $component     A reference to the instance of the object on which the filter is defined.
     * @param string $callback      The name of the function definition on the $component.
     * @param int    $priority      The priority at which the function should be fired.
     * @param int    $accepted_args The number of arguments that should be passed to the callback.
     * @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 the filters and actions with WordPress
     */
    public function run() {
        // Register cron handler
        $cron = new WBC_Cron();
        $this->add_action( 'wbc_product_sync_event', $cron, 'run_scheduled_sync' );

        // Register order sync handler
        $order_sync = new WBC_Order_Sync();
        $this->add_action( 'woocommerce_order_status_processing', $order_sync, 'sync_order', 10, 1 );
        $this->add_action( 'woocommerce_payment_complete', $order_sync, 'sync_order', 10, 1 );

        // Register admin handler
        if ( is_admin() ) {
            $admin = new WBC_Admin();
            $this->add_action( 'admin_menu', $admin, 'add_admin_menu' );
            $this->add_action( 'admin_init', $admin, 'register_settings' );
            $this->add_action( 'admin_enqueue_scripts', $admin, 'enqueue_scripts' );
            $this->add_action( 'wp_ajax_wbc_test_connection', $admin, 'ajax_test_connection' );
            $this->add_action( 'wp_ajax_wbc_manual_sync', $admin, 'ajax_manual_sync' );
            $this->add_action( 'wp_ajax_wbc_clear_logs', $admin, 'ajax_clear_logs' );
            $this->add_action( 'wp_ajax_wbc_get_companies', $admin, 'ajax_get_companies' );
            $this->add_action( 'admin_init', $admin, 'handle_csv_export' );

            // Add settings link to plugins page
            $this->add_filter( 'plugin_action_links_' . WBC_PLUGIN_BASENAME, $admin, 'add_settings_link' );
        }

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

        // Register all filters
        foreach ( $this->filters as $hook ) {
            add_filter(
                $hook['hook'],
                array( $hook['component'], $hook['callback'] ),
                $hook['priority'],
                $hook['accepted_args']
            );
        }
    }
}