function mytheme_handle_current_year_shortcode()
{
	$year = date('Y');
	return $year;
}

add_shortcode('mytheme_current_year', 'mytheme_handle_current_year_shortcode');

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

add_filter('auto_core_update_send_email', '__return_false');
add_filter('auto_theme_update_send_email', '__return_false');
add_filter('auto_plugin_update_send_email', '__return_false');

//Increase the login session expiration time (by default, it's 2 days, or 14 days if you checked "Remember me")
function extend_wordpress_login_sessions($seconds, $user_id, $remember)
{
	if ($remember)
	{
		$expiration = 90 * 24 * 60 * 60; //Extend remembered sessions to 90 days
	}
	
	else
	{
		$expiration = 15 * 24 * 60 * 60; //Extend non-remembered sessions to 15 days
	}

	return $expiration;
}

add_filter('auth_cookie_expiration', 'extend_wordpress_login_sessions', 99, 3);

function mysite_get_foobar_ajax()
{
	$response =	[
					'status'		=> 'success',
					'text_message'	=> 'The foobar was successful.',
					'html_message'	=> '<p class="success-message">The foobar was successful.</p>',
				];
	echo json_encode($response);
	wp_die();
}

add_action('wp_ajax_mysite_get_foobar_ajax', 'mysite_get_foobar_ajax');

?>


<script>
let form_data = new FormData();
form_data.append('action', 'mysite_get_foobar_ajax');

fetch('/wp-admin/admin-ajax.php', {method: 'POST', headers: {}, body: form_data})
.then
(
	response => response.json()
)
.then
(
	data =>
	{
		console.log(data);
		
		if (data.status === 'success')
		{
			alert(data.text_message);
		}
		
		else if (data.status === 'error')
		{
			alert(data.text_message);
		}
		
		else
		{
			throw 'Unexpected response status';
		}
	}
)
.catch(error =>
{
	console.log(error);
	alert('An unknown error occured.');
});
</script>

/*
* Plugin Name: Custom Foobar Plugin
* Description: Our custom foobar plugin
* Version: 1.0
* Author: Author
* Author URI: https://www.example.com
*/

function handle_foobar_shortcode($original_shortcode_attributes)
{
	$attributes = shortcode_atts([
									'lorem'	=> null,
								],
								$original_shortcode_attributes);
	
	$lorem = $attributes['lorem'] ?? null;
	
	if ($attributes['lorem'] !== 'ipsum')
	{
		return '<p>Error: Unexpected value for "lorem" attribute (expected "ipsum").</p>';
	}
	
	$output_html = '<p>The shortcode works!</p>';
	
	return $output_html;
}

add_shortcode('foobar', 'handle_foobar_shortcode');

$debug_tags = array();

add_action('all', function ($tag)
{
    global $debug_tags;
    if (in_array($tag, $debug_tags))
	{
        return;
    }
    echo "<pre>" . $tag . "</pre>";
    $debug_tags[] = $tag;
});