✏️ Editing: class-integration-manager.php

<?php

/**
 * Class MC4WP_Integration_Manager
 *
 * @ignore
 * @access private
 */
class MC4WP_Integration_Manager
{
    /**
     * @var MC4WP_Integration_Fixture[]
     */
    protected $integrations = [];

/**
     * @var MC4WP_Integration_Tags
     */
    protected $tags;

/**
    * Constructor
    */
    public function __construct()
    {
        $this->tags = new MC4WP_Integration_Tags();
    }

/**
     * Add hooks
     */
    public function add_hooks()
    {
        add_action('after_setup_theme', [ $this, 'initialize' ]);

$this->tags->add_hooks();
    }

/**
     * Add hooks
     */
    public function initialize()
    {
        /*** @var MC4WP_Integration_Fixture $integration */
        $enabled_integrations = $this->get_enabled_integrations();

foreach ($enabled_integrations as $integration) {
            $integration->load()->initialize();
        }
    }

/**
     * Get an integration instance
     *
     * @return MC4WP_Integration_Fixture[]
     * @throws Exception
     */
    public function get_all()
    {
        return $this->integrations;
    }

/**
     * Get an integration instance
     *
     * @param string $slug
     * @return MC4WP_Integration
     * @throws Exception
     */
    public function get($slug)
    {
        if (! isset($this->integrations[ $slug ])) {
            throw new Exception(sprintf('No integration with slug %s has been registered.', $slug));
        }

return $this->integrations[ $slug ]->load();
    }

/**
     * Register a new integration class
     *
     * @param string $slug
     * @param string $class
     * @param bool $enabled
     */
    public function register_integration($slug, $class, $enabled = false)
    {
        $raw_options                 = $this->get_integration_options($slug);
        $this->integrations[ $slug ] = new MC4WP_Integration_Fixture($slug, $class, $enabled, $raw_options);
    }

/**
     * Deregister an integration class
     *
     * @param string $slug
     */
    public function deregister_integration($slug)
    {
        if (isset($this->integrations[ $slug ])) {
            unset($this->integrations[ $slug ]);
        }
    }

/**
     * Checks whether a certain integration is enabled (in the settings)
     *
     * This is decoupled from the integration class itself as checking an array is way "cheaper" than instantiating an object
     *
     * @param MC4WP_Integration_Fixture $integration
     *
     * @return bool
     */
    public function is_enabled(MC4WP_Integration_Fixture $integration)
    {
        return $integration->enabled;
    }

/**
     * @param MC4WP_Integration $integration
     * @return bool
     */
    public function is_installed($integration)
    {
        return $integration->is_installed();
    }

/**
     * Get the integrations which are enabled
     *
     * - Some integrations are always enabled because they need manual work
     * - Other integrations can be enabled in the settings page
     * - Only returns installed integrations
     *
     * @return array
     */
    public function get_enabled_integrations()
    {
        // get all enabled integrations
        $enabled_integrations = array_filter($this->integrations, [ $this, 'is_enabled' ]);

// remove duplicate values, for whatever reason..
        $enabled_integrations = array_unique($enabled_integrations);

// filter out integrations which are not installed
        $installed_enabled_integrations = array_filter($enabled_integrations, [ $this, 'is_installed' ]);

return $installed_enabled_integrations;
    }

/**
     * Gets all integration options in a keyed array
     *
     * @return array
     */
    private function load_options()
    {
        $options = (array) get_option('mc4wp_integrations', []);

/**
         * Filters global integration options
         *
         * This array holds ALL integration settings
         *
         * @since 3.0
         * @param array $options
         * @ignore
         */
        return (array) apply_filters('mc4wp_integration_options', $options);
    }

/**
     * Gets the raw options for an integration
     *
     * @param $slug
     * @return array
     */
    public function get_integration_options($slug)
    {
        static $options;
        if ($options === null) {
            $options = $this->load_options();
        }

return isset($options[ $slug ]) ? $options[ $slug ] : [];
    }
}

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