add_action( 'after_setup_theme', 'child_theme_setup', 20 );

function child_theme_setup() {
    add_shortcode( 'video_portfolio', 'video_portfolio' );
}

function video_portfolio($attributes, $content)
    {
        $attributes = shortcode_atts(
            array(
                'pagination' => false,
                'filters' => false,
                'columns' => 3,
                'category' => null,
                'items' => null,
                'ratio' => '3:2',
                'no_indents' => false,
            ), $attributes);

        if ( ! in_array($attributes['columns'], array(2,3,4,5)))
        {
            $attributes['columns'] = 3;
        }

        if ( ! in_array($attributes['ratio'], array('3:2','4:3','1:1', '2:3', '3:4',)))
        {
            $attributes['ratio'] = '3:2';
        }

        $attributes['ratio'] = str_replace(':', '-', $attributes['ratio']);

        global $wp_query;

        $attributes['items'] = intval($attributes['items']);
        $portfolio_items = (is_integer($attributes['items']) AND $attributes['items'] > 0)?$attributes['items']:$attributes['columns'];
        if ($attributes['pagination'] == 1 OR $attributes['pagination'] == 'yes') {
            $paged = get_query_var('paged') ? get_query_var('paged') : 1;
        } else {
            $paged = 1;
        }
        $args = array(
            'post_type'         => 'us_portfolio',
            'posts_per_page'    => $portfolio_items,
            'post_status'       => 'publish',
            'orderby'           => 'date',
            'order'             => 'DESC',
            'paged'             => $paged
        );

        $filters_html = $sortable_class = '';
        $categories_slugs = null;

        if ( ! empty($attributes['category'])) {

            $categories_slugs = explode(',', $attributes['category']);
            $args['tax_query'] = array(
                array(
                    'taxonomy' => 'us_portfolio_category',
                    'field' => 'slug',
                    'terms' => $categories_slugs
                )
            );
        }


        if ($attributes['filters'] == 1 OR $attributes['filters'] == 'yes') {
            $categories = get_terms('us_portfolio_category');

            if ( ! empty($categories_slugs))
            {
                foreach ($categories as $cat_id => $category)
                {
                    if ( ! in_array($category->slug, $categories_slugs)) {
                        unset($categories[$cat_id]);
                    }
                }
            }

            if (count($categories) > 1) {
                $filters_html .= '<div class="w-filters">
                            <div class="w-filters-h">
                                <div class="w-filters-list">
                                    <div class="w-filters-item active">
                                        <a class="w-filters-item-link" href="javascript:void(0);" data-filter="*">'.__('All', 'us').'</a>
                                    </div>';
                foreach($categories as $category) {
                    $filters_html .= '<div class="w-filters-item">
                                    <a class="w-filters-item-link" href="javascript:void(0);" data-filter=".'.$category->slug.'">'.$category->name.'</a>
                                </div>';
                }

                $filters_html .= '</div>
                            </div>
                        </div>';
            }
        }

        if ($filters_html != '') {
            $sortable_class = ' type_sortable';
        }

        $no_indents_class = ($attributes['no_indents'] == 1 OR $attributes['no_indents'] == 'yes')?' indents_none':'';

        $output = '<div class="w-portfolio columns_'.$attributes['columns'].' ratio_'.$attributes['ratio'].$sortable_class.$no_indents_class.'">
            <div class="w-portfolio-h">'.$filters_html;

        $temp = $wp_query; $wp_query= null;

        $output .= '<div class="w-portfolio-list">
                    <div class="w-portfolio-list-h">';

        $wp_query = new WP_Query($args);

        $portfolio_order_counter = 0;

        while ( $wp_query->have_posts() )
        {
            $wp_query->the_post();
            $portfolio_order_counter++;
            $item_categories_links = '';
            $item_categories_classes = '';
            $item_categories = get_the_terms(get_the_ID(), 'us_portfolio_category');
            if (is_array($item_categories))
            {
                foreach ($item_categories as $item_category)
                {
                    $item_categories_links .= $item_category->name.' / ';
                    $item_categories_classes .= ' '.$item_category->slug;
                }
            }
            if (mb_strlen($item_categories_links) > 0 )
            {
                $item_categories_links = mb_substr($item_categories_links, 0, -2);
            }

            $link_ref = $link_target = '';
            $link = esc_url( apply_filters( 'the_permalink', get_permalink() ) );

            if (rwmb_meta('us_custom_link') != ''){
                $link = rwmb_meta('us_custom_link');
                if (rwmb_meta('us_custom_link_blank') == 1){
                    $link_target = ' target="_blank"';
                }
            }

            if (rwmb_meta('us_lightbox') == 1){
                $img_id = get_post_thumbnail_id();
                $link = wp_get_attachment_image_src($img_id, 'full');
                $link = $link[0];
                $link_ref = ' ref="magnificPopup"';
            }

            $output .= '<div class="w-portfolio-item order_'.$portfolio_order_counter.$item_categories_classes.'">
                            <div class="w-portfolio-item-h">
                                <a class="w-portfolio-item-anchor"'.$link_target.$link_ref.' rel="wp-video-lightbox" href="'.$link.'">
                                    <div class="w-portfolio-item-image">';
            if (has_post_thumbnail()) {
                $output .= get_the_post_thumbnail(null, 'portfolio-list-'.$attributes['ratio'], array('class' => 'w-portfolio-item-image-first'));
            } else {
                $output .= '<img class="w-portfolio-item-image-first" src="'.get_template_directory_uri().'/img/placeholder/500x500.gif" alt="">';
            }

            $additional_image = '';
            if (rwmb_meta('us_additional_image') != '')
            {
                $additional_img_id = preg_replace('/[^\d]/', '', rwmb_meta('us_additional_image'));
                $additional_img = wpb_getImageBySize(array('attach_id' => $additional_img_id, 'thumb_size' => 'portfolio-list-'.$attributes['ratio'] ));

                if ( $additional_img != NULL )
                {
                    $additional_img = wp_get_attachment_image_src($additional_img_id, 'portfolio-list-'.$attributes['ratio']);
                    $additional_image = $additional_img[0];
                }
            }
            if ($additional_image != '')
            {
                $output .= '<img class="w-portfolio-item-image-second" src="'.$additional_image.'" alt="">';
            }
                    $output .= '                <div class="w-portfolio-item-meta">
                                                <h2 class="w-portfolio-item-title">'.the_title('','', FALSE).'</h2>
                                                <span class="w-portfolio-item-arrow"></span>
                                            </div>
                                    </div>
                                </a>
                            </div>
                        </div>';
        }

        $output .= '</div>
                </div>';
        if ($attributes['pagination'] == 1 OR $attributes['pagination'] == 'yes') {
            if ($pagination = us_pagination()) {
                $output .= '<div class="w-portfolio-pagination">
                    <div class="g-pagination align_center">
                        '.$pagination.'
                    </div>
                </div>';
            }
        }

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

        wp_reset_postdata();
        $wp_query= $temp;

        return $output;

    }