A plugin that provides license keys to the EDD SL Updates on Multisite plugin for Inventory Presser add-ons

a-provide-licenses.php

<?php
defined( 'ABSPATH' ) OR exit;
/**
 * Plugin Name: Make Licenses Available for Updates on Multisite
 * Plugin URI: https://gist.github.com/csalzano/621deacc33f2482da205f294b445485a
 * Description: A plugin that provides license keys to the EDD SL Updates on Multisite plugin for Inventory Presser add-ons
 * Version: 1.0.0
 * Author: Corey Salzano
 * Author URI: https://coreysalzano.com/
 * Text Domain: invp-make-licenses-available
 * Domain Path: /languages
 * License: GPLv2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 */

class Make_Licenses_Available_For_Updates{

	function populate_license_key( $args, $site_id ) {
		$option = get_blog_option( $site_id, $this->find_option_name() );
		if( ! empty( $option['license_key'] ) ) {
			$args['license'] = $option['license_key'];
		}
		return $args;
	}

	/**
	 * Extract the plugin slug from current_filter() and return the name of the
	 * option I'm using to store that plugins options and, most importantly, the
	 * license key.
	 *
	 * @return string The name of the option where plugin settings are stored
	 */
	function find_option_name() {

		/**
		 * Current_filter() is something like
		 *  `edd_sl_multisite_updater_divert-contact-form-7-leads-to-friday-systems`
		 */
		switch( substr( current_filter(), 25 ) ) {

			case 'divert-contact-form-7-leads-to-friday-systems':
				return 'divert_cf7_settings';

			case 'make-list-widget':
				return 'make_list_widget_settings';

			case 'payment-calculator-widget':
				return 'payment_calculator_widget_settings';

			case 'similar-vehicles-widget':
				return 'similar_vehicles_widget_settings';

			case 'taxonomy-drop-down-search-widget':
				return 'invp_drop_down_widget_settings';

			case 'taxonomy-filters-widget':
				return 'invp_filters_widget_settings';
		}
		return '';
	}

	function hooks() {

		add_action( 'init', 'wp_clean_plugins_cache' );

		add_filter( 'edd_sl_multisite_updater_divert-contact-form-7-leads-to-friday-systems', array( $this, 'populate_license_key' ), 10, 2 );
		add_filter( 'edd_sl_multisite_updater_make-list-widget',                              array( $this, 'populate_license_key' ), 10, 2 );
		add_filter( 'edd_sl_multisite_updater_payment-calculator-widget',                     array( $this, 'populate_license_key' ), 10, 2 );
		add_filter( 'edd_sl_multisite_updater_similar-vehicles-widget',                       array( $this, 'populate_license_key' ), 10, 2 );
		add_filter( 'edd_sl_multisite_updater_taxonomy-drop-down-search-widget',              array( $this, 'populate_license_key' ), 10, 2 );
		add_filter( 'edd_sl_multisite_updater_taxonomy-filters-widget',                       array( $this, 'populate_license_key' ), 10, 2 );
	}
}
$make_licenses_available_239480723478234 = new Make_Licenses_Available_For_Updates();
$make_licenses_available_239480723478234->hooks();