<?php
/**
 * MainWP Logs Connectors.
 *
 * This file handles all interactions with the Client DB.
 *
 * @package MainWP/Dashboard
 */

namespace MainWP\Dashboard\Module\Log;

/**
 * Class Log_Connectors
 */
class Log_Connectors {

    /**
     * Holds instance of manager object
     *
     * @var Log_Manager
     */
    public $manager;

    /**
     * Connectors registered
     *
     * @var array
     */
    public $connectors = array();

    /**
     * Contexts registered to Connectors
     *
     * @var array
     */
    public $contexts = array();

    /**
     * Action taxonomy terms
     * Holds slug to localized label association
     *
     * @var array
     */
    public $term_labels = array(
        'logs_connector' => array(),
        'logs_context'   => array(),
        'logs_action'    => array(),
    );

    /**
     * Constructor.
     *
     * Run each time the class is called.
     *
     * @param Log_Manager $manager The main manager class.
     */
    public function __construct( $manager ) {
        $this->manager = $manager;
        $this->load_connectors();
    }

    /**
     * Load built-in connectors
     *
     * @uses \MainWP\Dashboard\Module\Log\Log_Connector
     */
    public function load_connectors() { //phpcs:ignore -- NOSONAR - complex method.
        $connectors = $this->manager->get_internal_connectors();

        $enabled_logging = ! empty( $this->manager->settings->options['enabled'] ) ? true : false;
        if ( $enabled_logging ) {
            $connectors = array_merge(
                $connectors,
                array(
                    'site',
                    'client',
                    'posts',
                    'installer',
                    'user',
                    'non-mainwp-changes',
                )
            );
        }

        $classes = array();
        foreach ( $connectors as $connector ) {
            include_once $this->manager->locations['dir'] . 'connectors/class-connector-' . $connector . '.php'; // NOSONAR - WP compatible.
            $class_name = sprintf( '\MainWP\Dashboard\Module\Log\Connector_%s', str_replace( '-', '_', $connector ) );
            if ( ! class_exists( $class_name ) ) {
                continue;
            }
            $class                   = new $class_name( $this->manager->log );
            $classes[ $class->name ] = $class;
        }

        if ( $enabled_logging ) {
            /**
             * Allows for adding additional connectors via classes that extend Connector.
             *
             * @param array $classes An array of Connector objects.
             */
            $this->connectors = apply_filters( 'mainwp_module_log_connectors', $classes, $this->manager->log );
        } else {
            $this->connectors = $classes; // do not load external connectors.
        }

        if ( empty( $this->connectors ) ) {
            return;
        }

        foreach ( $this->connectors as $connector ) {
            if ( ! method_exists( $connector, 'get_label' ) ) {
                continue;
            }
            $this->term_labels['logs_connector'][ $connector->name ] = $connector->get_label();
        }

        // Get excluded connectors.
        $excluded_connectors = array();

        foreach ( $this->connectors as $connector ) {
            if ( ! method_exists( $connector, 'get_label' ) ) {
                continue;
            }
            if ( ! method_exists( $connector, 'register' ) ) {
                continue;
            }
            if ( ! method_exists( $connector, 'get_context_labels' ) ) {
                continue;
            }
            if ( ! method_exists( $connector, 'get_action_labels' ) ) {
                continue;
            }

            // Check if the connectors extends the Connector class, if not skip it.
            if ( ! is_subclass_of( $connector, '\MainWP\Dashboard\Module\Log\Log_Connector' ) ) {
                continue;
            }

            // Store connector label.
            if ( ! in_array( $connector->name, $this->term_labels['logs_connector'], true ) ) {
                $this->term_labels['logs_connector'][ $connector->name ] = $connector->get_label();
            }

            $connector_name = $connector->name;
            $is_excluded    = in_array( $connector_name, $excluded_connectors, true );

            /**
             * Allows excluded connectors to be overridden and registered.
             *
             * @param bool   $is_excluded         True if excluded, otherwise false.
             * @param string $connector           The current connector's slug.
             * @param array  $excluded_connectors An array of all excluded connector slugs.
             */
            $is_excluded_connector = apply_filters( 'mainwp_module_log_check_connector_is_excluded', $is_excluded, $connector_name, $excluded_connectors );

            if ( $is_excluded_connector ) {
                continue;
            }

            $connector->register();

            // Link context labels to their connector.
            $this->contexts[ $connector->name ] = $connector->get_context_labels();

            // Add new terms to our label lookup array.
            $this->term_labels['logs_action']  = array_merge(
                $this->term_labels['logs_action'],
                $connector->get_action_labels()
            );
            $this->term_labels['logs_context'] = array_merge(
                $this->term_labels['logs_context'],
                $connector->get_context_labels()
            );
        }

        $labels = $this->term_labels['logs_connector'];

        /**
         * Fires after all connectors have been registered.
         *
         * @param array      $labels     All register connectors labels array
         * @param Connectors $connectors The Connectors object
         */
        do_action( 'mainwp_module_log_after_connectors_registration', $labels, $this );
    }
}