WP - redirect all guests to homepage

wp-redirect-all-guests-to-homepage.php

<?php 

// redirect front-end
add_action( 'template_redirect', 'redirect_guests_home' );
function redirect_guests_home() {
	
	if ( !is_user_logged_in() )  {
	
		$homepage_id = get_option('page_on_front');
	
	if ( ! is_page( $homepage_id ) ) {                                                                                  
			wp_redirect( get_home_url() ); 
		}    
		
	}
}

// redirect wp-admin and wp-login.php 
add_action('init','redirect_guest_login_home');
function redirect_guest_login_home(){
	
	if ( !is_user_logged_in() ) {
	
		$page_viewed = basename($_SERVER['REQUEST_URI']);
		if ( $page_viewed == "wp-login.php" OR ( strpos( $page_viewed, "wp-admin") !== false ) ) {
			wp_redirect( get_home_url() );
			exit();
		}
	}
}