<?php
/**
 * Sample implementation of the Custom Header feature
 * https://codex.wordpress.org/Custom_Headers
 *
 * @package Billie
 */

/**
 * Set up the WordPress core custom header feature.
 */
function billie_custom_header_setup() {
	add_theme_support(
		'custom-header',
		apply_filters(
			'billie_custom_header_args',
			array(
				'default-image'          => get_template_directory_uri() . '/images/flower.jpg',
				'default-text-color'     => '000000',
				'flex-height'            => true,
				'flex-width'             => true,
				'width'                  => 2000,
				'height'                 => 600,
				'wp-head-callback'       => 'billie_customize_css',
				'admin-head-callback'    => 'billie_admin_header_style',
				'admin-preview-callback' => 'billie_admin_header_image',
			)
		)
	);

	register_default_headers(
		array(
			'flower' => array(
				'url'           => '%s/images/flower.jpg',
				'thumbnail_url' => '%s/images/flower.jpg',
				'description'   => __( 'Flower', 'billie' ),
			),
		)
	);
}

add_action( 'after_setup_theme', 'billie_custom_header_setup' );