<?php
/**
 * Sample implementation of the Custom Header feature
 *
 * You can add an optional custom header image to header.php like so ...
 *
 * <?php the_header_image_tag(); ?>
 *
 * @link https://developer.wordpress.org/themes/functionality/custom-headers/
 *
 * @package Albatross
 */

/**
 * Set up the WordPress core custom header feature.
 *
 * @uses albatross_header_style()
 */
function albatross_custom_header_setup()
{
	add_theme_support(
		'custom-header',
		apply_filters(
			'albatross_custom_header_args',
			array(
				'default-image' => '',
				'default-text-color' => '000000',
				'width' => 1920,
				'height' => 1080,
				'flex-height' => true,
				'wp-head-callback' => 'albatross_header_style',
			)
		)
	);
}

add_action('after_setup_theme', 'albatross_custom_header_setup');

if (!function_exists('albatross_header_style')) :
	/**
	 * Styles the header image and text displayed on the blog.
	 *
	 * @see albatross_custom_header_setup().
	 */
	function albatross_header_style()
	{
		$header_text_color = get_header_textcolor();

		/*
		 * If no custom options for text are set, let's bail.
		 * get_header_textcolor() options: Any hex value, 'blank' to hide text. Default: add_theme_support( 'custom-header' ).
		 */
		if (get_theme_support('custom-header', 'default-text-color') === $header_text_color) {
			return;
		}

		// If we get this far, we have custom styles. Let's do this.
		?>
        <style type="text/css">
            <?php
			// Has the text been hidden?
			if ( ! display_header_text() ) :
				?>
            .site-title,
            .site-description {
                position: absolute;
                clip: rect(1px, 1px, 1px, 1px);
            }

            <?php
			// If the user has set a custom color for the text use that.
		else :
			?>
            .site-title a,
            .site-description {
                color: #<?php echo esc_attr( $header_text_color ); ?>;
            }

            <?php endif; ?>
        </style>
		<?php
	}
endif;