<?php
/**
 * Theme setup functions.
 *
 * @package ThinkUpThemes
 */

/* ----------------------------------------------------------------------------------
	BACKWARD COMPATIBILITY FOR CORE FUNCTIONS
---------------------------------------------------------------------------------- */

if ( ! function_exists( 'wp_body_open' ) ) {
	function wp_body_open() {
		do_action( 'wp_body_open' );
	}
}


//----------------------------------------------------------------------------------
//	ADD CUSTOM HOOKS
//----------------------------------------------------------------------------------

// Used at top of header.php
function thinkup_hook_header() {
	do_action('thinkup_hook_header');
}

// Used at top of header.php within the body tag
function thinkup_bodystyle() {
	do_action('thinkup_bodystyle');
}


/* ----------------------------------------------------------------------------------
	ADD THEME PLUGINS - CREDIT ATTRIBUTABLE TO http://tgmpluginactivation.com/
---------------------------------------------------------------------------------- */

require_once( get_template_directory() . '/lib/plugins/class-tgm-plugin-activation.php');
add_action( 'tgmpa_register', 'thinkup_theme_register_required_plugins' );

function thinkup_theme_register_required_plugins() {

	// Array of plugin arrays. Required keys are name and slug.
	$plugins = array(
		array(
			'name'     => 'JustFeedback',
			'slug'     => 'feedfocal',
			'required' => false
		),
    );

	// Array of configuration settings. Amend each line as needed.
	$config = array(
		'id'           => 'tgmpa',                 // Unique ID for hashing notices for multiple instances of TGMPA.
		'default_path' => '',                      // Default absolute path to bundled plugins.
		'menu'         => 'tgmpa-install-plugins', // Menu slug.
		'parent_slug'  => 'themes.php',            // Parent menu slug.
		'capability'   => 'edit_theme_options',    // Capability needed to view plugin install page, should be a capability associated with the parent menu used.
		'has_notices'  => true,                    // Show admin notices or not.
		'dismissable'  => true,                    // If false, a user cannot dismiss the nag message.
		'dismiss_msg'  => '',                      // If 'dismissable' is false, this message will be output at top of nag.
		'is_automatic' => false,                   // Automatically activate plugins after installation or not.
		'message'      => '',                      // Message to output right before the plugins table.
	);

	tgmpa( $plugins, $config );

}


//----------------------------------------------------------------------------------
//	ADD PAGE TITLE
//----------------------------------------------------------------------------------

function thinkup_title_select() {
	global $post;

	if ( is_page() ) {
		printf( '<span>%s</span>', esc_html( get_the_title() ) );
	} elseif ( is_attachment() ) {
		printf( '<span>' . esc_html__( 'Blog Post Image: ', 'melos' ) . '</span>' . '%s', esc_html( get_the_title( $post->post_parent ) ) );
	} else if ( is_single() ) {
		printf( '<span>%s</span>', html_entity_decode( esc_html( get_the_title() ) ) );
	} else if ( is_search() ) {
		printf( '<span>' . esc_html__( 'Search Results: ', 'melos' ) . '</span>' . '%s', esc_html( get_search_query() ) );
	} else if ( is_404() ) {
		printf( '<span>' . esc_html__( 'Page Not Found', 'melos' ) . '</span>' );
	} else if ( is_category() ) {
		printf( '<span>' . esc_html__( 'Category Archives: ', 'melos' ) . '</span>' . '%s', single_cat_title( '', false ) );
	} elseif ( is_tag() ) {
		printf( '<span>' . esc_html__( 'Tag Archives: ', 'melos' ) . '</span>' . '%s', single_tag_title( '', false ) );
	} elseif ( is_author() ) {
		the_post();
		printf( '<span>' . esc_html__( 'Author Archives: ', 'melos' ) . '</span>' . '%s', get_the_author() );
		rewind_posts();
	} elseif ( is_day() ) {
		printf( '<span>' . esc_html__( 'Daily Archives: ', 'melos' ) . '</span>' . '%s', get_the_date() );
	} elseif ( is_month() ) {
		printf( '<span>' . esc_html__( 'Monthly Archives: ', 'melos' ) . '</span>' . '%s', get_the_date( 'F Y' ) );
	} elseif ( is_year() ) {
		printf( '<span>' . esc_html__( 'Yearly Archives: ', 'melos' ) . '</span>' . '%s', get_the_date( 'Y' ) );
	} elseif ( is_archive() ) {
		printf( get_the_archive_title() );
	} elseif ( is_tax() ) {
		printf( esc_html( get_queried_object()->name ) );
	} elseif ( thinkup_check_isblog() ) {
		printf( '<span>' . esc_html__( 'Blog', 'melos' ) . '</span>' );
	} else {
		printf( '<span>%s</span>', html_entity_decode( esc_html( get_the_title() ) ) );
	}
}

// Remove "archive" text from custom post type archive pages
function thinkup_title_select_cpt($title) {
    if ( is_post_type_archive() ) {
		$title = post_type_archive_title( '', false );
	}
	return $title;
};
add_filter( 'get_the_archive_title', 'thinkup_title_select_cpt' );


//----------------------------------------------------------------------------------
//	ADD BREADCRUMBS FUNCTIONALITY
//----------------------------------------------------------------------------------

function thinkup_input_breadcrumb() {

// Get theme options values.
$thinkup_general_breadcrumbdelimeter = thinkup_var ( 'thinkup_general_breadcrumbdelimeter' );

	$output           = NULL;
	$count_loop       = NULL;
	$count_categories = NULL;

	if ( empty( $thinkup_general_breadcrumbdelimeter ) ) {
		$delimiter = '<span class="delimiter">/</span>';
	} else if ( ! empty( $thinkup_general_breadcrumbdelimeter ) ) {
		$delimiter = '<span class="delimiter"> ' . esc_html( $thinkup_general_breadcrumbdelimeter ) . ' </span>';
	}

	$delimiter_inner   =   '<span class="delimiter_core"> &bull; </span>';
	$main              =   __( 'Home', 'melos' );
	$maxLength         =   30;

	/* Archive variables */
	$arc_year       =   get_the_time('Y');
	$arc_month      =   get_the_time('F');
	$arc_day        =   get_the_time('d');
	$arc_day_full   =   get_the_time('l');

	/* URL variables */
	$url_year    =   get_year_link($arc_year);
	$url_month   =   get_month_link($arc_year,$arc_month);

	/* Display breadcumbs if NOT the home page */
	if ( ! is_front_page() ) {
		$output .= '<div id="breadcrumbs"><div id="breadcrumbs-core">';
		global $post, $cat;
		$homeLink = home_url( '/' );
		$output .= '<a href="' . esc_url( $homeLink ) . '">' . esc_html( $main ) . '</a>' . $delimiter;

		/* Display breadcrumbs for single post */
		if ( is_single() ) {
			$category = get_the_category();
			$num_cat = count($category);
			if ($num_cat <=1) {
				$output .= ' ' . html_entity_decode( esc_html( get_the_title() ) );
			} else {

				// Count Total categories
				foreach( get_the_category() as $category) {
					$count_categories++;
				}

				// Output Categories
				foreach( get_the_category() as $category) {
					$count_loop++;

					if ( $count_loop < $count_categories ) {
						$output .= '<a href="' . esc_url( get_category_link( $category->term_id ) ) . '">' . esc_html( $category->cat_name ) . '</a>' . $delimiter_inner;
					} else {
						$output .= '<a href="' . esc_url( get_category_link( $category->term_id ) ) . '">' . esc_html( $category->cat_name ) . '</a>';
					}
				}

				if (strlen(get_the_title()) >= $maxLength) {
					$output .=  ' ' . $delimiter . esc_html( trim( substr( get_the_title(), 0, $maxLength ) ) ) . ' &hellip;';
				} else {
					$output .=  ' ' . $delimiter . esc_html( get_the_title() );
				}
			}
		} elseif (is_category()) {
			$output .= '<span class="breadcrumbs-cat">' . __( 'Archive Category: ', 'melos' ) . '</span>' . esc_html( single_cat_title("", false) );
		} elseif ( is_tag() ) {
			$output .= '<span class="breadcrumbs-tag">' . __( 'Posts Tagged: ', 'melos' ) . '</span>' . single_tag_title("", false);
		} elseif ( is_day()) {
			$output .=  '<a href="' . esc_url( $url_year ) . '">' . esc_html( $arc_year ) . '</a> ' . $delimiter . ' ';
			$output .=  '<a href="' . esc_url( $url_month ) . '">' . esc_html( $arc_month ) . '</a> ' . $delimiter . esc_html( $arc_day ) . ' (' . esc_html( $arc_day_full ) . ')';
		} elseif ( is_month() ) {
			$output .=  '<a href="' . esc_url( $url_year ) . '">' . esc_html( $arc_year ) . '</a> ' . $delimiter . esc_html( $arc_month );
		} elseif ( is_year() ) {
			$output .=  esc_html( $arc_year );
		} elseif ( is_search() ) {
			$output .= esc_html__( 'Search Results for: ', 'melos' ) . esc_html( get_search_query() ) . '"';
		} elseif ( is_page() && !$post->post_parent ) {
			$output .=  esc_html( get_the_title() );
		} elseif ( is_page() && $post->post_parent ) {
			$post_array = get_post_ancestors( $post );
			krsort( $post_array );
			foreach( $post_array as $key=>$postid ){
				$post_ids = get_post( $postid );
				$title = $post_ids->post_title;
				$output  .= '<a href="' . esc_url( get_permalink( $post_ids ) ) . '">' . esc_html( $title ) . '</a>' . $delimiter;
			}
			$output .= esc_html( get_the_title() );
		} elseif ( is_author() ) {
			global $author;
			$user_info = get_userdata($author);
			$output .= esc_html__( 'Archived Article(s) by Author: ', 'melos' ) . esc_html( $user_info->display_name );
		} elseif ( is_404() ) {
			$output .= esc_html__( 'Error 404 - Not Found.', 'melos' );
		} elseif ( is_archive() ) {
			$output .= get_the_archive_title();
		} elseif( is_tax() ) {
			$output .= esc_html( get_queried_object()->name );
		} elseif ( thinkup_check_isblog() ) {
			$output .= esc_html__( 'Blog', 'melos' );
		} else {
			$output .= html_entity_decode( esc_html( get_the_title() ) );
		}

		$output .=  '</div></div>';

		return $output;
    }
}


/* ----------------------------------------------------------------------------------
	ADD MENU DESCRIPTION FEATURE
---------------------------------------------------------------------------------- */

class thinkup_menudescription extends Walker_Nav_Menu {

	function start_el(&$output, $item, $depth=0, $args=array(), $id = 0) {
		global $wp_query;

		$item_output = NULL;

		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

		$class_names = $value = '';
		$classes = empty( $item->classes ) ? array() : (array) $item->classes;

		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
		$class_names = ' class="' . esc_attr( $class_names ) . '"';

		$output .= $indent . '<li id="menu-item-'. esc_attr( $item->ID ) . '"' . $value . $class_names .'>';

		$attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : '';
		$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : '';
		$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : '';
		$attributes .= ! empty( $item->url ) ? ' href="' . esc_url( $item->url ) .'"' : ' href="' . esc_url( get_permalink( $item->ID ) ) . '"';

        // Insert title for top level
		if ( has_nav_menu( 'header_menu' ) ) {
			$title = ( $depth == 0 )
				? '<span>' . apply_filters( 'the_title', $item->title, $item->ID ) . '</span>' : apply_filters( 'the_title', $item->title, $item->ID );
		} else {
			$title = ( $depth == 0 )
				? '<span>' . apply_filters( 'the_title', get_the_title($item->ID), $item->ID ) . '</span>' : apply_filters( 'the_title', get_the_title($item->ID), $item->ID );
		}

        // Structure of output
		$item_output .= '<a'. $attributes .'>';
		$item_output .= $title;
		$item_output .= '</a>';

		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
    }
}


//----------------------------------------------------------------------------------
//	ADD CUSTOM FEATURED IMAGE SIZES
//----------------------------------------------------------------------------------

if ( ! function_exists( 'thinkup_input_addimagesizes' ) ) {
	function thinkup_input_addimagesizes() {

		// Image size for testimonial shortcode
		add_image_size( 'sc-testimonial-1', 120, 120, true );
		add_image_size( 'sc-testimonial-2', 105, 105, true );

		/* 1 Column Layout */
		add_image_size( 'column1-1/2', 1140, 570, true );
		add_image_size( 'column1-1/3', 1140, 380, true );
		add_image_size( 'column1-1/4', 1140, 285, true );
		add_image_size( 'column1-2/5', 1140, 456, true );

		/* 2 Column Layout */
		add_image_size( 'column2-1/1', 570, 570, true );
		add_image_size( 'column2-1/2', 570, 285, true );
		add_image_size( 'column2-2/3', 570, 380, true );
		add_image_size( 'column2-3/5', 570, 342, true );
		add_image_size( 'column2-4/5', 570, 456, true );
		add_image_size( 'column2-6/5', 570, 684, true );

		/* 3 Column Layout */
		add_image_size( 'column3-1/1', 380, 380, true );
		add_image_size( 'column3-1/3', 380, 107, true );
		add_image_size( 'column3-2/5', 380, 152, true );
		add_image_size( 'column3-2/3', 380, 254, true );
		add_image_size( 'column3-3/4', 380, 285, true );

		/* 4 Column Layout */
		add_image_size( 'column4-1/1', 285, 285, true );
		add_image_size( 'column4-2/3', 285, 190, true );
		add_image_size( 'column4-3/4', 285, 214, true );
	}
	add_action( 'after_setup_theme', 'thinkup_input_addimagesizes' );
}

if ( ! function_exists( 'thinkup_input_showimagesizes' ) ) {
	function thinkup_input_showimagesizes($sizes) {

		// 1 Column Layout
		$sizes['column1-1/2'] = __( 'Full - 1:2', 'melos' );
		$sizes['column1-1/3'] = __( 'Full - 1:3', 'melos' );
		$sizes['column1-1/4'] = __( 'Full - 1:4', 'melos' );
		$sizes['column1-2/5'] = __( 'Full - 2:5', 'melos' );

		// 2 Column Layout
		$sizes['column2-1/1'] = __( 'Half - 1:1', 'melos' );
		$sizes['column2-1/2'] = __( 'Half - 1:2', 'melos' );
		$sizes['column2-2/3'] = __( 'Half - 2:3', 'melos' );
		$sizes['column2-3/5'] = __( 'Half - 3:5', 'melos' );

		// 3 Column Layout
		$sizes['column3-1/1'] = __( 'Third - 1:1', 'melos' );
		$sizes['column3-2/5'] = __( 'Third - 2:5', 'melos' );
		$sizes['column3-2/3'] = __( 'Third - 2:3', 'melos' );
		$sizes['column3-3/4'] = __( 'Third - 3:4', 'melos' );

		// 4 Column Layout
		$sizes['column4-1/1'] = __( 'Quarter - 1:1', 'melos' );
		$sizes['column4-2/3'] = __( 'Quarter - 2:3', 'melos' );
		$sizes['column4-3/4'] = __( 'Quarter - 3:4', 'melos' );

		return $sizes;
	}
	add_filter('image_size_names_choose', 'thinkup_input_showimagesizes');
}


//----------------------------------------------------------------------------------
//	ADD FUNCTION TO GET CURRENT PAGE URL
//----------------------------------------------------------------------------------

function thinkup_check_currentpage() {
	$pageURL = 'http';
	if( isset($_SERVER["HTTPS"]) ) {
		if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
	}
	$pageURL .= '://' . wp_unslash( $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"] );

	$pageURL    = rtrim($pageURL, '/') . '/';
	$currentURL = get_permalink();

	// Add www. to current page url if present in permalink
	if (strpos( $currentURL, 'www.' ) !== false) {
		if (strpos( $pageURL, '://www.' ) !== false) {
			$pageURL = $pageURL;
		} else {
			$pageURL = str_replace( "://", "://www.", $pageURL );
		}
	} else {
		$pageURL = str_replace( "www.", "", $pageURL );
	}

	// Add trailing slash "/" at end of link if present in permalink
	if ( substr( $currentURL, -1 ) == '/' ) {
		$pageURL = trailingslashit( $pageURL );
	} else {
		$pageURL = untrailingslashit( $pageURL );
	}

	// Add correct http: or https: prefix to current page url
	if (strpos( $currentURL, 'http://' ) !== false) {
		$pageURL = str_replace( "https://", "http://", $pageURL );
	} else {
		$pageURL = str_replace( "http://", "https://", $pageURL );
	}

	return $pageURL;
}


//----------------------------------------------------------------------------------
//	CHANGE FALLBACK WP_PAGE_MENU CLASSES TO MATCH WP_NAV_MENU CLASSES
//----------------------------------------------------------------------------------

function thinkup_input_menuclass( $ulclass ) {

	// Add menu class to list
	$ulclass = preg_replace( '/<ul>/', '<ul class="menu">', $ulclass, 1 );
	$ulclass = str_replace( 'children', 'sub-menu', $ulclass );

	// Remove div wrapper
	$ulclass = str_replace( '<div class="menu">', '', $ulclass );
	$ulclass = str_replace( '</div>', '', $ulclass );

	return preg_replace('/<div (.*)>(.*)<\/div>/iU', '$2', $ulclass );
}
add_filter( 'wp_page_menu', 'thinkup_input_menuclass' );


//----------------------------------------------------------------------------------
//	DETERMINE IF THE PAGE IS A BLOG - USEFUL FOR HOMEPAGE BLOG.
//----------------------------------------------------------------------------------

// Credit to: http://www.poseidonwebstudios.com/web-development/wordpress-is_blog-function/
function thinkup_check_isblog() {

    global $post;

    //Post type must be 'post'.
    $post_type = get_post_type($post);

    //Check all blog-related conditional tags, as well as the current post type,
    //to determine if we're viewing a blog page.
    return (
        ( is_home() || is_archive() )
        && ($post_type == 'post')
    ) ? true : false ;

}


//----------------------------------------------------------------------------------
//	ADD GOOGLE FONT - LATO. (http://themeshaper.com/2014/08/13/how-to-add-google-fonts-to-wordpress-themes/)
//----------------------------------------------------------------------------------

function thinkup_googlefonts_url() {
    $fonts_url = '';

    // Translators: Translate this to 'off' if there are characters in your language that are not supported by Lato
    $font_translate = _x( 'on', 'Lato font: on or off', 'melos' );

    if ( 'off' !== $font_translate ) {
        $font_families = array();

        if ( 'off' !== $font_translate ) {
            $font_families[] = 'Lato:300,400,600,700';
        }

        $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 thinkup_googlefonts_scripts() {
   wp_enqueue_style( 'thinkup-google-fonts', thinkup_googlefonts_url(), array(), null );
}
add_action( 'wp_enqueue_scripts', 'thinkup_googlefonts_scripts' );


//----------------------------------------------------------------------------------
//	ADD THEMEBUTTON CLASS TO COMMENT CANCEL REPLY BUTTON
//----------------------------------------------------------------------------------

function thinkup_input_cancelreplyclass($class){
    $class = str_replace( 'id="cancel-comment-reply-link"', 'id="cancel-comment-reply-link" class="themebutton"', $class);
    return $class;
}
add_filter('cancel_comment_reply_link', 'thinkup_input_cancelreplyclass');


//----------------------------------------------------------------------------------
//	FIX JETPACK PHOTON IMAGE LOAD ISSUE - DISABLE CACHING FOR SPECIFIC IMAGES
//----------------------------------------------------------------------------------

function thinkup_photon_exception( $val, $src, $tag ) {
        if ( $src == get_template_directory_uri() . '/images/transparent.png' ) {
                return true;
        }
        return $val;
}
add_filter( 'jetpack_photon_skip_image', 'thinkup_photon_exception', 10, 3 );


//----------------------------------------------------------------------------------
//	CHECK PERMISSIONS
//----------------------------------------------------------------------------------

function thinkup_check_permission() {
	return true;
}


//----------------------------------------------------------------------------------
//	FEEDBACK REQUEST
//----------------------------------------------------------------------------------

function thinkup_admin_scripts_custom() {

	// Get theme names
	$name_parent = (string) (!empty(get_template())              ? get_template()   : null);
	$name_child  = (string) (get_template() != get_stylesheet()  ? get_stylesheet() : null);

	// Set theme code
	$code_parent = (string) (!empty($name_parent) ? "window.justfbk['Theme']       = '$name_parent'" : null);
	$code_child  = (string) (!empty($name_child)  ? "window.justfbk['Theme Child'] = '$name_child'" : null);

	echo "
		<script type='text/javascript'>
		(function(j,u,s,t,f,b,k){
		j.justfeedback=function(){j.justfeedback.push(arg)};
		j.justfeedback.jf={t:'f',u:'c5733cff',s:'e52f4ec9',f:'9b3d698d'};
		t=u.getElementsByTagName('head')[0];
		f=u.createElement('script');f.async=1;
		f.src=s;t.appendChild(f);j.justfbk={};
		})(window,document,'https://cdn.justfeedback.com/s/jf.js');
		$code_parent
		$code_child
		</script>
	";
}
add_action( 'admin_enqueue_scripts', 'thinkup_admin_scripts_custom' );

