<?php
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Base Integration Class
 *
 * @package    Activity_Log_Pro
 * @subpackage Activity_Log_Pro/integrations
 * @since      1.0.0
 */

/**
 * Base Integration Class
 *
 * This class serves as the foundation for all plugin integrations.
 * All specific plugin integrations should extend this class.
 *
 * @package    Activity_Log_Pro
 * @subpackage Activity_Log_Pro/integrations
 * @author     Activity Log Pro
 */
abstract class ACTLOGPRO_Integration_Base {

    /**
     * The ID of this integration.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $integration_id    The ID of this integration.
     */
    protected $integration_id;

    /**
     * The name of this integration.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $integration_name    The name of this integration.
     */
    protected $integration_name;

    /**
     * The description of this integration.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $integration_description    The description of this integration.
     */
    protected $integration_description;

    /**
     * The plugin file path that this integration depends on.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $plugin_dependency    The plugin file path that this integration depends on.
     */
    protected $plugin_dependency;

    /**
     * Whether this integration is marked as active in the settings.
     *
     * @since    1.0.0
     * @access   protected
     * @var      boolean    $is_marked_active    Whether this integration is marked as active in the settings.
     */
    protected $is_marked_active = false;

    /**
     * Initialize the class and set its properties.
     *
     * @since    1.0.0
     * @param    boolean    $is_marked_active    Whether this integration is marked as active in the settings.
     */
    public function __construct($is_marked_active = false) {
        // Set whether this integration is marked as active in the settings
        $this->is_marked_active = $is_marked_active;
        
        // Set default properties
        $this->set_properties();
        
        // Check if this is a premium integration and premium is not enabled
        $premium_integrations = array('woocommerce', 'yoast');
        if (in_array($this->integration_id, $premium_integrations) && !ACTLOGPRO_Premium_Helper::is_premium_enabled()) {
            // Don't register hooks for premium integrations when premium is disabled
            return;
        }
        
        // Register hooks
        $this->register_hooks();
    }

    /**
     * Set the properties of this integration.
     *
     * @since    1.0.0
     */
    abstract protected function set_properties();

    /**
     * Register the hooks related to this integration.
     *
     * @since    1.0.0
     */
    abstract protected function register_hooks();

    /**
     * Get the integration ID.
     *
     * @since    1.0.0
     * @return   string    The ID of this integration.
     */
    public function get_id() {
        return $this->integration_id;
    }

    /**
     * Get the integration name.
     *
     * @since    1.0.0
     * @return   string    The name of this integration.
     */
    public function get_name() {
        return $this->integration_name;
    }

    /**
     * Get the integration description.
     *
     * @since    1.0.0
     * @return   string    The description of this integration.
     */
    public function get_description() {
        return $this->integration_description;
    }

    /**
     * Get the plugin dependency.
     *
     * @since    1.0.0
     * @return   string    The plugin file path that this integration depends on.
     */
    public function get_plugin_dependency() {
        return $this->plugin_dependency;
    }

    /**
     * Check if the integration is active.
     *
     * @since    1.0.0
     * @return   boolean    True if the integration is active, false otherwise.
     */
    public function is_active() {
        // Check if this is a premium integration and premium is not enabled
        $premium_integrations = array('woocommerce', 'yoast');
        if (in_array($this->integration_id, $premium_integrations) && !ACTLOGPRO_Premium_Helper::is_premium_enabled()) {
            return false;
        }
        
        // Check if the integration file exists
        $integration_id = $this->get_id();
        
        // For premium integrations, check in premium directory first
        if (in_array($this->integration_id, $premium_integrations) && defined('ACTLOGPRO_PREMIUM_PLUGIN_DIR')) {
            $premium_file_path = ACTLOGPRO_PREMIUM_PLUGIN_DIR . 'integrations/class-alp-' . $integration_id . '-integration.php';
            $file_exists = file_exists($premium_file_path);
        } else {
            // For free integrations, check in free plugin directory
            $integration_file_path = ACTLOGPRO_PLUGIN_DIR . 'integrations/' . $integration_id . '/class-alp-' . $integration_id . '-integration.php';
            $default_file_path = ACTLOGPRO_PLUGIN_DIR . 'integrations/class-alp-' . $integration_id . '-integration.php';
            $file_exists = file_exists($integration_file_path) || file_exists($default_file_path);
        }
        
        if (!$file_exists) {
            return false;
        }
        
        // Check if the plugin dependency is active
        if (!empty($this->plugin_dependency)) {
            // For WooCommerce, we need a special check
            if ($this->plugin_dependency === 'woocommerce/woocommerce.php') {
                // Check if WooCommerce is active using multiple methods
                $is_plugin_active = is_plugin_active($this->plugin_dependency);
                $wc_function_exists = function_exists('WC');
                $wc_class_exists = class_exists('WooCommerce');
                
                if (!($is_plugin_active || ($wc_function_exists && $wc_class_exists))) {
                    return false;
                }
            } else if ($this->plugin_dependency === 'wordpress-seo/wp-seo.php') {
                // Check if Yoast SEO is active using multiple methods
                $is_plugin_active = is_plugin_active($this->plugin_dependency);
                $yoast_function_exists = function_exists('WPSEO');
                $yoast_class_exists = class_exists('WPSEO_Options');
                
                if (!($is_plugin_active || ($yoast_function_exists || $yoast_class_exists))) {
                    return false;
                }
            } else if (!is_plugin_active($this->plugin_dependency)) {
                return false;
            }
        }
        
        // Check if this integration is marked as active in the settings
        if (!$this->is_marked_active) {
            return false;
        }
        
        // If all checks pass, consider it active
        return true;
    }
}