File includes/component/license-active-notice/ts-active-license-notice.php

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<?php
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}
/**
 * Active License Notice class
 *
 * @class wcap_active_license_notice
 * @version 1.0
 */

class wcap_active_license_notice {
    
    /**
     * @var string The name of the plugin
     * @access public
     */
    public $plugin_name = '';

    /**
     * @var string The option name where the license key is stored
     * @access public
     */
    public $plugin_license_option = '';

    /**
     * Store the path of the license page.
     * @var string Path of the license page.
     * @access public
     */
    public $ts_license_page_url = '';

    /**
     * Store the plguin locale.
     * @var string Used Plugin locale.
     * @access public
     */
    public $ts_locale = '';
    
    /**
     *  Default Constructor
     * 
     * @access public
     * @since  7.7
     */
    public function __construct( $ts_plugin_name = '', $ts_license_option_name = '', $ts_license_page_url = '', $ts_locale = '' ) {
        $this->plugin_name           = $ts_plugin_name;
        $this->plugin_license_option = $ts_license_option_name;
        $this->ts_license_page_url   = $ts_license_page_url;
        $this->ts_locale             = $ts_locale;
        if ( '' != $this->plugin_license_option ) {
            add_action( 'admin_init', array( &$this, 'ts_check_if_license_active' ) );
        }

        
    }

    /* Check if the license key is active for the plugin. If not active a notice will be displayed
    * 
    * @access public
    * @since 7.7
    */
    public function ts_check_if_license_active() {
        if ( ! $this->ts_check_active_license() ) {
            add_action( 'admin_notices', array( &$this, 'ts_license_active_notice' ) );
        }
    }

    /** 
     * Returns the result of the license key
     * 
     * @access public
     * @return bool
     * @since  7.7
     */
    public function ts_check_active_license() {
        $status = get_option( $this->plugin_license_option );
        if( false !== $status && 'valid' == $status ) {
            return true;
        } else {
            return false;
        }
    }
    
    /**
     *  Display the notice if the license key is not active
     * 
     * @access public
     * @since 7.7
     */

    public function ts_license_active_notice() {
        $class = 'notice notice-error';
        $message = __( 'We have noticed that the license for <b>' . $this->plugin_name . '</b> plugin is not active. To receive automatic updates & support, please activate the license <a href= "'. $this->ts_license_page_url .'"> here </a>.', "'. $this->ts_locale .'"  );
        printf( '<div class="%1$s"><p>%2$s</p></div>', $class, $message );
    }
}

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