<?php

if (! defined('ABSPATH')) {
    die('You are not allowed to call this page directly.');
}

/**
 * Integration of Polylang plugin with MemberPress
 */
class MeprPolylangIntegration
{
    /**
     * Constructor to initialize actions for setting user locale.
     */
    public function __construct()
    {
        add_action('mepr_signup', [$this, 'maybe_set_user_locale_at_register']);
        add_action('mepr_model_initialized', [$this, 'maybe_get_and_set_user_locale']);
    }

    /**
     * Sets the user locale at registration if Polylang is active.
     *
     * @param MeprTransaction $txn The transaction object containing user information.
     */
    public function maybe_set_user_locale_at_register($txn)
    {
        if (function_exists('pll_current_language')) {
            $user = $txn->user();
            update_user_meta($user->ID, 'locale', pll_current_language('locale'));
        }
    }

    /**
     * Gets and sets the user locale if Polylang is active and the user is not logged in.
     *
     * @param mixed $obj The object which can be a MeprTransaction or MeprSubscription.
     */
    public function maybe_get_and_set_user_locale($obj)
    {
        // Make sure we have the right object type.
        if (!is_null($obj) && ($obj instanceof MeprTransaction || $obj instanceof MeprSubscription)) {
            // Make sure we have a user.
            if (isset($obj->user_id) && $obj->user_id > 0 && !MeprUtils::is_user_logged_in()) {
                // Check that Polylang plugin is installed and activated.
                if (function_exists('pll_current_language')) {
                    if (function_exists('switch_to_locale')) {
                        switch_to_locale(get_user_locale($obj->user_id));
                    }
                    MeprOptions::fetch(true); // Force refresh MeprOptions singleton.
                }
            }
        }
    }
}

new MeprPolylangIntegration();