<?php
/**
 * slimblog functions and definitions.
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package Slimblog
 */

if ( ! function_exists( 'slimblog_setup' ) ) :
/**
 * Sets up theme defaults and registers support for various WordPress features.
 *
 * Note that this function is hooked into the after_setup_theme hook, which
 * runs before the init hook. The init hook is too late for some features, such
 * as indicating support for post thumbnails.
 */
function slimblog_setup() {
	/*
	 * Make theme available for translation.
	 * Translations can be filed in the /languages/ directory.
	 * If you're building a theme based on slimblog, use a find and replace
	 * to change 'slimblog' to the name of your theme in all the template files.
	 */
	load_theme_textdomain( 'slimblog', get_template_directory() . '/languages' );

	// Add default posts and comments RSS feed links to head.
	add_theme_support( 'automatic-feed-links' );

	/*
	 * Let WordPress manage the document title.
	 * By adding theme support, we declare that this theme does not use a
	 * hard-coded <title> tag in the document head, and expect WordPress to
	 * provide it for us.
	 */
	add_theme_support( 'title-tag' );

	/*
	 * Enable support for Post Thumbnails on posts and pages.
	 *
	 * @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
	 */
	add_theme_support( 'post-thumbnails' );

	// This theme uses wp_nav_menu() in one location.
	register_nav_menus( array(
		'primary' => esc_html__( 'Primary Menu', 'slimblog' ),
	) );

	/*
	 * Switch default core markup for search form, comment form, and comments
	 * to output valid HTML5.
	 */
	add_theme_support( 'html5', array(
		'search-form',
		'comment-form',
		'comment-list',
		'gallery',
		'caption',
	) );

	// Set up the WordPress core custom background feature.
	add_theme_support( 'custom-background', apply_filters( 'slimblog_custom_background_args', array(
		'default-color' => 'ffffff',
		'default-image' => '',
	) ) );
}
endif; // slimblog_setup
add_action( 'after_setup_theme', 'slimblog_setup' );

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * Priority 0 to make it available to lower priority callbacks.
 *
 * @global int $content_width
 */
function slimblog_content_width() {
	$GLOBALS['content_width'] = apply_filters( 'slimblog_content_width', 640 );
}
add_action( 'after_setup_theme', 'slimblog_content_width', 0 );

/**
 * Register widget area.
 *
 * @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
 */
function slimblog_widgets_init() {
	register_sidebar( array(
		'name'          => esc_html__( 'Sidebar', 'slimblog' ),
		'id'            => 'sidebar-1',
		'description'   => '',
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h2 class="widget-title">',
		'after_title'   => '</h2>',
	) );
}
add_action( 'widgets_init', 'slimblog_widgets_init' );

function cleanblog_excerpt_length($length)
	{
	return 160;
	}

add_filter('excerpt_length', 'cleanblog_excerpt_length', 999);
/**
 * Enqueue scripts and styles.
 */
function slimblog_scripts() {
	wp_enqueue_script( "jquery" );

	wp_enqueue_style( 'slimblog-style', get_stylesheet_uri() );

	wp_enqueue_style( 'slimblog-responsive-css', get_template_directory_uri() . '/responsive.css');

	wp_enqueue_style( 'slimblog-generic-icons-css', get_template_directory_uri() . '/genericons/genericons.css');

	wp_enqueue_style( 'google_fonts', 'http://fonts.googleapis.com/css?family=Roboto+Slab:400,700', false );

	wp_enqueue_style( 'slimblog-fonts', slimblog_fonts_url(), array(), null );

	wp_enqueue_script( 'slimblog-navigation-heler', get_template_directory_uri() . '/js/helpers.js', array(), '20120206', true );

	wp_enqueue_script( 'slimblog-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20130115', true );

	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}
}
add_action( 'wp_enqueue_scripts', 'slimblog_scripts' );

/**
 * Register Google Fonts
 */
function slimblog_fonts_url() {
    $fonts_url = '';

	/* Translators: If there are characters in your language that are not
	 * supported by Roboto Slab, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$font_families = array();
	
	$heading_font_family = get_theme_mod( 'slimblog_google_fonts_heading_font', null );
	$body_font_family = get_theme_mod( 'slimblog_google_fonts_body_font', null );

	if ( !empty( $heading_font_family ) && $heading_font_family !== 'none' ) {
		$heading_font = _x( 'on', $heading_font_family . ' font: on or off', 'slimblog' );
		if ( 'off' !== $heading_font ) {
			$font_families[] = $heading_font_family;
		}
	}

	if ( !empty( $body_font_family ) && $body_font_family !== 'none' && $body_font_family !== $heading_font_family ) {
		$body_font = _x( 'on', $body_font_family . ' font: on or off', 'slimblog' );
		if ( 'off' !== $body_font ) {
			$font_families[] = $body_font_family;
		}
	}


	if ( count( $font_families ) === 4 ) {
		array_slice( $font_families, 2 );
	}

	if ( !empty( $font_families ) ) {
		$query_args = array(
			'family' => urlencode( implode( '|', $font_families ) ),
			'subset' => urlencode( 'latin,latin-ext' ),
		);

		$fonts_url = add_query_arg( $query_args, '//fonts.googleapis.com/css' );
	}

	return $fonts_url;

}

function slimblog_load_theme_fonts()
{
	$heading = get_theme_mod( 'slimblog_google_fonts_heading_font' );
	$body = get_theme_mod( 'slimblog_google_fonts_body_font' );
	if ( ( !empty( $heading ) && $heading != 'none' ) || ( !empty( $body ) && $body != 'none' ) ) {
		echo '<style type="text/css">';
		$imports = array();
		$styles = array();
		if ( !empty( $heading ) && $heading != 'none' ) {
			$imports[] = '@import url(//fonts.googleapis.com/css?family=' . urlencode( $heading ) . ');';
			$styles[] = 'h1, h2, h3, h4, h5, h6 { font-family: "' . $heading . '" !important }';
		}
		if ( !empty( $body ) && $body != 'none' ) {
			$imports[] = '@import url(//fonts.googleapis.com/css?family=' . urlencode( $body ) . ');';
			$styles[] = 'body, .herotext, .herobuttons .button { font-family: "' . $body . '" !important }';
		}

		echo implode( "\r\n", $imports );
		echo implode( "\r\n", $styles );
		echo '</style>';

	}
}
add_action( 'wp_head', 'slimblog_load_theme_fonts' );

/**
 * Implement the Custom Header feature.
 */
require get_template_directory() . '/inc/custom-header.php';

/**
 * Custom template tags for this theme.
 */
require get_template_directory() . '/inc/template-tags.php';

/**
 * Custom functions that act independently of the theme templates.
 */
require get_template_directory() . '/inc/extras.php';

/**
 * Customizer additions.
 */
require get_template_directory() . '/inc/customizer.php';

/**
 * Load Jetpack compatibility file.
 */
require get_template_directory() . '/inc/jetpack.php';
