<?php 
/**
 * Functions.php => This file loads all the needed files for the theme to work properly.
 * IMPORTANT : DO NOT USE AN "ILLEGAL" COPY OF THIS THEME
 * IMPORTANT : DO NOT EVER EDIT THIS FILE
 * IMPORTANT : DO NOT COPY AND PASTE THIS FILE INTO YOUR CHILD THEME
 * IMPORTANT : DO NOT EVER COPY AND PASTE ANYTHING FROM THIS FILE TO YOUR CHILD THEME BECAUSE IT WILL CAUSE ERRORS
 *
 * White Paper is a very powerful theme and virtually anything can be customized
 * via a child theme. If you need any help altering a function, just let us know we are here to help!
 *
 * Advanced customizations aren't included with your purchase but if it's a simple task we can assist :)
 *
 *
 * @package White Paper WordPress Theme
 * @subpackage Templates
 * @version 1.0.0
 */

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class White_Papers_Init {
	
	function __construct(){
		/***********************************************************************************************/
		/* Theme Setup Actions and Filters */
		/***********************************************************************************************/

		add_action( 'after_setup_theme' , array( $this, 'wpc_theme_setup'));
		add_action( 'after_setup_theme' , array( $this, 'wpc_widgets'));
		add_action( 'vc_before_init', array( $this, 'wpc_vcSetAsTheme'));
		add_action( 'wp_enqueue_scripts' , array( $this, 'wpc_theme_scripts_styles'));
		add_action( 'widgets_init' , array( $this, 'wpc_register_sidebars'));
		add_action( 'wpc_pagination_nav', array($this, 'render_pagination_navigation'), 10, 3 );
		add_filter('user_contactmethods', array($this, 'add_to_author_profile'), 10, 1);
		add_filter( 'wp_nav_menu_objects', array($this, 'add_has_children_to_nav_items'));
		add_filter( 'excerpt_length', array($this , 'custom_excerpt_length'), 999 );
		add_action( 'wpc_breadcrumbs', array($this, 'render_wpc_breadcrumbs') );
		add_filter('style_loader_tag', array($this, 'wpc_remove_type_attr'), 10, 2);
		add_filter('script_loader_tag', array($this, 'wpc_remove_type_attr'), 10, 2);



		/***********************************************************************************************/
		/* Including White Paper Custom Hooks */
		/***********************************************************************************************/

		require_once get_parent_theme_file_path('inc/templates/related-posts.php');
		require_once get_parent_theme_file_path('inc/templates/featured-image.php');
		require_once get_parent_theme_file_path('inc/templates/author-bio.php');
		require_once get_parent_theme_file_path('inc/templates/social-share.php');
		require_once get_parent_theme_file_path('inc/templates/pre-loader.php');
		require_once get_parent_theme_file_path('inc/templates/comments.php');
		require_once get_parent_theme_file_path('inc/templates/login-nav.php');
		require_once get_parent_theme_file_path('inc/templates/top-bar-social.php');
		require_once get_parent_theme_file_path('inc/templates/search-form.php');
		require_once get_parent_theme_file_path('inc/templates/post-carousel.php');
		require_once get_parent_theme_file_path('inc/templates/footer-callout.php');
		require_once get_parent_theme_file_path('inc/templates/footer-carousel.php');
		require_once get_parent_theme_file_path('inc/templates/footer-social.php');
		require_once get_parent_theme_file_path('inc/templates/footer-copyright.php');
		require_once get_parent_theme_file_path('inc/templates/page-title.php');
		require_once get_parent_theme_file_path('inc/templates/headers.php');
		require_once get_parent_theme_file_path('inc/templates/topbar.php');
		require_once get_parent_theme_file_path('inc/templates/audio-post.php');
		require_once get_parent_theme_file_path('inc/templates/video-post.php');
		require_once get_parent_theme_file_path('inc/templates/check-post-format.php');
		require_once get_parent_theme_file_path('inc/templates/single-audio-post.php');
		require_once get_parent_theme_file_path('inc/templates/single-video-post.php');
		require_once get_parent_theme_file_path('inc/templates/slider.php');

		/***********************************************************************************************/
		/* Including Classes */
		/***********************************************************************************************/
		if (class_exists('Kirki')) {
			require_once get_parent_theme_file_path('inc/classes/theme-options.php');
		}
		require_once get_parent_theme_file_path('inc/metaboxes/post.settings.class.php');
		require_once get_parent_theme_file_path('inc/classes/nav-walker.php');
		require_once get_parent_theme_file_path('inc/classes/helper-functions.php');
		require_once get_parent_theme_file_path('inc/classes/class-tgm-plugin-activation.php');
		require_once get_parent_theme_file_path('inc/classes/required_plugins.php');
		require_once get_parent_theme_file_path('inc/classes/one-click-demo-importer.php');

	}

	/***********************************************************************************************/
		/* Function called on theme activation */
	/***********************************************************************************************/

	function wpc_theme_setup() {

		load_theme_textdomain('blue-paper', get_template_directory() . '/languages');

		/**
		***  Set up the content width value based on the theme's design and stylesheet.
		**/
		if (! isset ( $content_width )){
			global $content_width;
			$content_width = 800;
		}

		/** 
		***	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');

		/** 
		***	register nav manu for theme	
		*** register_nav_menus( array( '$location' => __( '$discription', 'theme_slug') , ) );
		**/
		register_nav_menus(
			array(
				'primary' => __('Main Menu', 'blue-paper'),
			)
		);

		/**
		*** Add default posts and comments RSS feed links to head.
		**/
		add_theme_support ('automatic-feed-links');
		
		add_theme_support('custom-header');

		add_theme_support('woocommerce');

		add_editor_style();

		/**
		*** Enable support for Post Thumbnails on posts and pages. @link http://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails
		**/
		add_theme_support ('post-thumbnails');

		/**
		*** our theme sidebar images and post images size
		**/

		add_image_size('blog-feature-img', 240, 172, true);
		add_image_size('blog-carousel-img', 1157, 495, true);
		add_image_size('footer-carousel', 318, 319, true);
		add_image_size('related-posts', 170, 113, true);

		/**
		*** 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'
		) );

		/**
		*** Setup the WordPress core custom background feature.
		**/
		add_theme_support('custom-background', apply_filters ('wpc_custom_background_args', array (
			'default-color' => '#F2F2F2',
			'default-image' => '' 
		)));

		/*
		 * Enable support for Post Formats.
		 *
		 * See: https://codex.wordpress.org/Post_Formats
		 */
		add_theme_support('post-formats', array(
			'video', 'gallery',  'audio'
		));
	}


	/**
	 * White paper - Loading all custom widget classes
	 * @since 1.0
	 */
	function wpc_widgets(){
		// Define array of custom widgets for the theme
		$widgets = apply_filters( 'wpc_custom_widgets', array(
			'recent-posts',
			'posts-carousel',
			'follow-us',
		));

		// Loading widgets classes
		foreach ( $widgets as $widget ) {
			require_once('inc/widgets/'. $widget .'.php');
		}
	}

	/**
	 * Visual Composer Support
	 * @since 1.0
	 */
	function wpc_vcSetAsTheme() {
	    vc_set_as_theme();
	}

	function wpc_theme_scripts_styles() {

		// Load the html5 shiv.
		wp_enqueue_script('html5', get_template_directory_uri().'/js/html5shiv.min.js');
		wp_script_add_data('html5', 'conditional', 'lt IE 9');

		// Required CSS
		wp_enqueue_style('wpc-lib-css', get_template_directory_uri().'/assests/css/lib.css');
		wp_enqueue_style('wpc-main-css', get_template_directory_uri().'/assests/css/main.css');
		wp_enqueue_style('wpc-style-css', get_template_directory_uri().'/style.css');
		wp_enqueue_style('wpc-revolution-css', get_template_directory_uri().'/assests/revolution/css/settings.css');
		wp_enqueue_style('wpc-rtl-css', get_template_directory_uri().'/assests/css/rtl.css');
		wp_enqueue_style('wpc-slick-css', get_template_directory_uri().'/assests/slick/slick.css');
		wp_enqueue_style('wpc-slick-theme-css', get_template_directory_uri().'/assests/slick/slick-theme.css');

		// JavaScript

		wp_enqueue_script('jquery-ui-core');
		wp_enqueue_script('wpc-popper-js', get_template_directory_uri().'/assests/js/popper.min.js', array('jquery'),'1.0',true);
		wp_enqueue_script('wpc-lib-js', get_template_directory_uri().'/assests/js/lib.js', array('jquery'),'1.2',true);
		wp_enqueue_script('wpc-themepunch-tools-js', get_template_directory_uri().'/assests/revolution/js/jquery.themepunch.tools.min.js', array('jquery'),'1.3',true);
		wp_enqueue_script('wpc-themepunch-js', get_template_directory_uri().'/assests/revolution/js/jquery.themepunch.revolution.min.js', array('jquery'),'1.4',true);
		wp_enqueue_script('wpc-themepunch-actions-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.actions.min.js', array('jquery'),'1.5',true);
		wp_enqueue_script('wpc-themepunch-carousel-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.carousel.min.js', array('jquery'),'1.6',true);
		wp_enqueue_script('wpc-themepunch-kenburn-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.kenburn.min.js', array('jquery'),'1.7',true);
		wp_enqueue_script('wpc-themepunch-layeranimation-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.layeranimation.min.js', array('jquery'),'1.8',true);
		wp_enqueue_script('wpc-themepunch-migration-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.migration.min.js', array('jquery'),'1.9',true);
		wp_enqueue_script('wpc-themepunch-navigation-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.navigation.min.js', array('jquery'),'1.11',true);
		wp_enqueue_script('wpc-themepunch-parallax-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.parallax.min.js', array('jquery'),'1.12',true);
		wp_enqueue_script('wpc-themepunch-slideanims-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.slideanims.min.js', array('jquery'),'1.13',true);
		wp_enqueue_script('wpc-themepunch-video-js', get_template_directory_uri().'/assests/revolution/js/extensions/revolution.extension.video.min.js', array('jquery'),'1.14',true);
		wp_enqueue_script('wpc-slick-js', get_template_directory_uri().'/assests/js/functions.js', array('jquery'),'1.15',true);
		wp_enqueue_script('wpc-themepunch-functions-js', get_template_directory_uri().'/assests/slick/slick.min.js', array('jquery'),'1.15',true);
		wp_enqueue_script('wpc-functions-js', get_template_directory_uri().'/assests/js/functions.js', array('jquery'),'1.15',true);
		wp_enqueue_script('wpc-responsive-menu-js', get_template_directory_uri().'/assests/js/responsive-menu.js', array('jquery'),'1.15',true);

		// Dynamic css for primary color and settings
		
		ob_start();
		include get_parent_theme_file_path('assests/css/primary-color.php');
		$inline_styles = ob_get_clean();

		wp_add_inline_style( 'wpc-main-css', $inline_styles );

	}


	/***********************************************************************************************/
		/* Sidebar call back  */
	/***********************************************************************************************/

	function wpc_register_sidebars() {
		register_sidebar( 
			array(
				'name'          => __( 'Main Side Bar', 'blue-paper' ),
				'id'            => 'main-side-bar',
				'description'   => __( 'Sidebar for all pages, posts and archives and blog pages', 'blue-paper' ),
			    'class'         => 'widget',
				'before_widget' => '<aside id="%1$s" class="widget widget_latestposts %2$s">',
				'after_widget'  => '</aside>',
				'before_title'  => '<h3 class="widget-title">',
				'after_title'   => '</h3>'  
			));
	}

	/***********************************************************************************************/
		/* White Paper pagination callback  */
	/***********************************************************************************************/

	function render_pagination_navigation($max_num_pages = '', $dk = '', $paged = ''){

		if ($max_num_pages == '') {
			$max_num_pages = $GLOBALS['wp_query']->max_num_pages;
		}

		// Don't print empty markup if there's only one page.
		if ( $max_num_pages < 2 ) {
			return;
		}

		if ($paged == '') {
			$paged = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
		}
		$pagenum_link = html_entity_decode( get_pagenum_link() );
		$query_args   = array();
		$url_parts    = explode( '?', $pagenum_link );

		if ( isset( $url_parts[1] ) ) {
			wp_parse_str( $url_parts[1], $query_args );
		}

		$pagenum_link = remove_query_arg( array_keys( $query_args ), $pagenum_link );
		$pagenum_link = trailingslashit( $pagenum_link ) . '%_%';

		$format  = $GLOBALS['wp_rewrite']->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
		$format .= $GLOBALS['wp_rewrite']->using_permalinks() ? user_trailingslashit( 'page/%#%', 'paged' ) : '?paged=%#%';
		?>
		<nav class="navigation pagination">
			<h2 class="screen-reader-text">Posts navigation</h2>
			<div class="nav-links">
						<?php

							$pagination = paginate_links( array(
								'base' 		=> $pagenum_link,
								'format'    => $format,
								'current'   => $paged,
								'total'     => $max_num_pages,
								'end_size' 	=> 2,
								'mid_size' 	=> 1,
								'add_args' 	=> array_map( 'urlencode', $query_args ),
								'type'    	=> 'array',
								'prev_text' => '<i class="fa fa-chevron-left"></i>',
								'next_text' => '<i class="fa fa-chevron-right"></i>',
							) );

							if (is_array($pagination)) {
								foreach ($pagination as $link) {
										$the_css = '';
									if (strpos($link, 'current') !== false) {
										$link = '<a class="current page-numbers">'.$link.'</a>';
									}
									if (strpos($link, 'dots') !== false) {
										$the_css = 'dots';
										$link = '<a class="page-numbers">'.$link.'</a>';
									}
									echo $link;
								}
							}
						?>
				</div>
			</nav><!-- Pagination /- -->
		<?php
	}
	/***********************************************************************************************/
		/* Adding social profile in user  */
	/***********************************************************************************************/
	
	function add_to_author_profile($contactmethods) {
		
		$contactmethods['rss_url'] = 'RSS URL';
		$contactmethods['google_profile'] = 'Google';
		$contactmethods['twitter_profile'] = 'Twitter';
		$contactmethods['facebook_profile'] = 'Facebook';
		$contactmethods['linkedin_profile'] = 'Linkedin';
		
		return $contactmethods;
	}
	
	/***********************************************************************************************/
		/* Adding custom css class into navigation  */
	/***********************************************************************************************/
	function add_has_children_to_nav_items( $items ){
	    $parents = wp_list_pluck( $items, 'menu_item_parent');

	    foreach ( $items as $item )
	        in_array( $item->ID, $parents ) && $item->classes[] = 'dropdown';

	    return $items;
	}

	/***********************************************************************************************/
		/* setting excerpt length for blog post  */
	/***********************************************************************************************/
	function custom_excerpt_length($length) {
		return 20;
	}

	/***********************************************************************************************/
		/* setting breadcrumbs  */
	/***********************************************************************************************/
	function render_wpc_breadcrumbs(){

		$showOnHome = 0; // 1 - show breadcrumbs on the homepage, 0 - don't show
		$delimiter = '/'; // delimiter between crumbs
		$home = '<i class="fa fa-home" aria-hidden="true"></i>'; // text for the 'Home' link
		$showCurrent = 1; // 1 - show current post/page title in breadcrumbs, 0 - don't show
		$before = '<a href="#">'; // tag before the current crumb
		$after = '</a>'; // tag after the current crumb

		global $post;
		$homeLink = home_url();

		if (is_home() || is_front_page()) {

			if ($showOnHome == 1) echo '<div class="page-links text-center"><a href="' . $homeLink . '">' . $home . '</a></div>';

		} else {

			echo '<div class="page-links text-center"><a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';

			if ( is_category() ) {
				$thisCat = get_category(get_query_var('cat'), false);
				if ($thisCat->parent != 0) echo get_category_parents($thisCat->parent, TRUE, ' ' . $delimiter . ' ');
				echo $before . 'Archive by category "' . single_cat_title('', false) . '"' . $after;

			} elseif ( is_search() ) {
				echo $before . 'Search results for "' . get_search_query() . '"' . $after;

			} elseif ( is_day() ) {
				echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
				echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';
				echo $before . get_the_time('d') . $after;

			} elseif ( is_month() ) {
				echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
				echo $before . get_the_time('F') . $after;

			} elseif ( is_year() ) {
				echo $before . get_the_time('Y') . $after;

			} elseif ( is_single() && !is_attachment() ) {
				if ( get_post_type() != 'post' ) {
					$post_type = get_post_type_object(get_post_type());
					$slug = $post_type->rewrite;
					echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a>';
					if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;
				} else {
					$cat = get_the_category(); $cat = $cat[0];
					$cats = get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
					if ($showCurrent == 0) $cats = preg_replace("#^(.+)\s$delimiter\s$#", "$1", $cats);
					echo $cats;
					if ($showCurrent == 1) echo $before . get_the_title() . $after;
				}

			} elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
				$post_type = get_post_type_object(get_post_type());
				echo $before . $post_type->labels->singular_name . $after;

			} elseif ( is_attachment() ) {
				$parent = get_post($post->post_parent);
				$cat = get_the_category($parent->ID); $cat = $cat[0];
				echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
				echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a>';
				if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;
			} elseif ( is_page() && !$post->post_parent ) {
				if ($showCurrent == 1) echo $before . get_the_title() . $after;
			} elseif ( is_page() && $post->post_parent ) {
				$parent_id  = $post->post_parent;
				$breadcrumbs = array();
				while ($parent_id) {
					$page = get_page($parent_id);
					$breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
					$parent_id  = $page->post_parent;
				}
				$breadcrumbs = array_reverse($breadcrumbs);
				for ($i = 0; $i < count($breadcrumbs); $i++) {
					echo $breadcrumbs[$i];
					if ($i != count($breadcrumbs)-1) echo ' ' . $delimiter . ' ';
				}
				if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;

			} elseif ( is_tag() ) {
				echo $before . 'Posts tagged "' . single_tag_title('', false) . '"' . $after;
			} elseif ( is_author() ) {
				global $author;
				$userdata = get_userdata($author);
				echo $before . 'Articles posted by ' . $userdata->display_name . $after;

			} elseif ( is_404() ) {
				echo $before . 'Error 404' . $after;
			}

			if ( get_query_var('paged') ) {
				if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';
				echo __('Page', 'blue-paper') . ' ' . get_query_var('paged');
				if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';
			}

			echo '</div>';
		}	
	}

	
	function wpc_remove_type_attr($tag, $handle) {
	    return preg_replace( "/type=['\"]text\/(javascript|css)['\"]/", '', $tag );
	}


} // class end


$wpc_main_ob = new White_Papers_Init();