<?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 unisco
 */

if ( ! function_exists( 'unisco_header_setup' ) ) :
	/**
	 * Set up the WordPress core custom header feature.
	 *
	 * @uses unisco_header_style()
	 */
	function unisco_header_setup() {
		add_theme_support( 'custom-header', apply_filters( 'unisco_custom_header_args', array(
			'default-image'      => get_template_directory_uri() . '/images/slider.jpg',
			'default-text-color' => 'ffffff',
			'width'              => 1600,
			'height'             => 400,
			'flex-height'        => true,
			'wp-head-callback'   => 'unisco_header_style'
		) ) );
	}
endif;
add_action( 'after_setup_theme', 'unisco_header_setup' );


if ( ! function_exists( 'unisco_header_style' ) ) :
	/**
	 * Styles the header image and text displayed on the blog.
	 *
	 * @see unisco_custom_header_setup().
	 */
	function unisco_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, .navbar-light .navbar-nav .nav-link, .slider_title h1, .slider_title h4, .carousel-control-next, .carousel-control-prev {
                color: #<?php echo esc_attr( $header_text_color ); ?>;
            }

            .fa-slider {
                border-color: #<?php echo esc_attr( $header_text_color ); ?>;
            }

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