<?php



function wp_print_font_faces( $fonts = array() ) {

	if ( empty( $fonts ) ) {
		$fonts = WP_Font_Face_Resolver::get_fonts_from_theme_json();
	}

	if ( empty( $fonts ) ) {
		return;
	}

	$wp_font_face = new WP_Font_Face();
	$wp_font_face->generate_and_print( $fonts );
}


function wp_print_font_faces_from_style_variations() {
	$fonts = WP_Font_Face_Resolver::get_fonts_from_style_variations();

	if ( empty( $fonts ) ) {
		return;
	}

	wp_print_font_faces( $fonts );
}


function wp_register_font_collection( string $slug, array $args ) {
	return WP_Font_Library::get_instance()->register_font_collection( $slug, $args );
}


function wp_unregister_font_collection( string $slug ) {
	return WP_Font_Library::get_instance()->unregister_font_collection( $slug );
}


function wp_get_font_dir() {
	return wp_font_dir( false );
}


function wp_font_dir( $create_dir = true ) {
	/*
	 * Allow extenders to manipulate the font directory consistently.
	 *
	 * Ensures the upload_dir filter is fired both when calling this function
	 * directly and when the upload directory is filtered in the Font Face
	 * REST API endpoint.
	 */
	add_filter( 'upload_dir', '_wp_filter_font_directory' );
	$font_dir = wp_upload_dir( null, $create_dir, false );
	remove_filter( 'upload_dir', '_wp_filter_font_directory' );
	return $font_dir;
}


function _wp_filter_font_directory( $font_dir ) {
	if ( doing_filter( 'font_dir' ) ) {
		// Avoid an infinite loop.
		return $font_dir;
	}

	$font_dir = array(
		'path'    => untrailingslashit( $font_dir['basedir'] ) . '/fonts',
		'url'     => untrailingslashit( $font_dir['baseurl'] ) . '/fonts',
		'subdir'  => '',
		'basedir' => untrailingslashit( $font_dir['basedir'] ) . '/fonts',
		'baseurl' => untrailingslashit( $font_dir['baseurl'] ) . '/fonts',
		'error'   => false,
	);

	
	return apply_filters( 'font_dir', $font_dir );
}


function _wp_after_delete_font_family( $post_id, $post ) {
	if ( 'wp_font_family' !== $post->post_type ) {
		return;
	}

	$font_faces = get_children(
		array(
			'post_parent' => $post_id,
			'post_type'   => 'wp_font_face',
		)
	);

	foreach ( $font_faces as $font_face ) {
		wp_delete_post( $font_face->ID, true );
	}
}


function _wp_before_delete_font_face( $post_id, $post ) {
	if ( 'wp_font_face' !== $post->post_type ) {
		return;
	}

	$font_files = get_post_meta( $post_id, '_wp_font_face_file', false );
	$font_dir   = untrailingslashit( wp_get_font_dir()['basedir'] );

	foreach ( $font_files as $font_file ) {
		wp_delete_file( $font_dir . '/' . $font_file );
	}
}


function _wp_register_default_font_collections() {
	wp_register_font_collection(
		'google-fonts',
		array(
			'name'          => _x( 'Google Fonts', 'font collection name' ),
			'description'   => __( 'Install from Google Fonts. Fonts are copied to and served from your site.' ),
			'font_families' => 'https://s.w.org/images/fonts/wp-6.7/collections/google-fonts-with-preview.json',
			'categories'    => array(
				array(
					'name' => _x( 'Sans Serif', 'font category' ),
					'slug' => 'sans-serif',
				),
				array(
					'name' => _x( 'Display', 'font category' ),
					'slug' => 'display',
				),
				array(
					'name' => _x( 'Serif', 'font category' ),
					'slug' => 'serif',
				),
				array(
					'name' => _x( 'Handwriting', 'font category' ),
					'slug' => 'handwriting',
				),
				array(
					'name' => _x( 'Monospace', 'font category' ),
					'slug' => 'monospace',
				),
			),
		)
	);
}