<?php
/**
* Attachments content actions
*
*
* @package      Customizr
* @subpackage   classes
* @since        3.0.5
* @author       Nicolas GUILLAUME <nicolas@presscustomizr.com>
* @copyright    Copyright (c) 2013-2015, Nicolas GUILLAUME
* @link         http://presscustomizr.com/customizr
* @license      http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
if ( ! class_exists( 'TC_attachment' ) ) :
    class TC_attachment {
        static $instance;
        function __construct () {
            self::$instance =& $this;
            add_action  ( '__loop'			              , array( $this , 'tc_attachment_content' ));
        }




        /**
         * The template part for displaying attachment content
         * Inspired from Twenty Twelve WP Theme
         * @package Customizr
         * @since Customizr 3.0
         */
        function tc_attachment_content() {
            //check conditional tags
            global $post;
            if ( ! isset($post) || empty($post) || 'attachment' != $post -> post_type || !is_singular() )
                return;

            ob_start();
            do_action( '__before_content' );
            ?>
            <nav id="image-navigation" class="navigation" role="navigation">
                <span class="previous-image"><?php previous_image_link( false, __( '&larr; Previous' , 'customizr' ) ); ?></span>
                <span class="next-image"><?php next_image_link( false, __( 'Next &rarr;' , 'customizr' ) ); ?></span>
            </nav><!-- #image-navigation -->

            <section class="entry-content">

                <div class="entry-attachment">

                    <div class="attachment">
                        <?php

                        $attachments = array_values( get_children( array( 'post_parent' => $post->post_parent, 'post_status' => 'inherit' , 'post_type' => 'attachment' , 'post_mime_type' => 'image' , 'order' => 'ASC' , 'orderby' => 'menu_order ID' ) ) );

                        //did we activate the fancy box in customizer?
                        $tc_fancybox = esc_attr( TC_utils::$inst->tc_opt( 'tc_fancybox' ) );

                        ?>

                        <?php if ( $tc_fancybox == 0 ) : //fancy box not checked! ?>

                            <?php
                            /**
                            * Grab the IDs of all the image attachments in a gallery so we can get the URL of the next adjacent image in a gallery,
                            * or the first image (if we're looking at the last image in a gallery), or, in a gallery of one, just the link to that image file
                            */

                            foreach ( $attachments as $k => $attachment )  {
                                if ( $attachment->ID == $post->ID ) {
                                    break;
                                }
                            }

                            $k++;

                            // If there is more than 1 attachment in a gallery
                            if ( count( $attachments ) > 1 ) {

                                if ( isset( $attachments[ $k ] ) ) {
                                    // get the URL of the next image attachment
                                    $next_attachment_url = get_attachment_link( $attachments[ $k ]->ID );
                                }

                                else {
                                    // or get the URL of the first image attachment
                                    $next_attachment_url = get_attachment_link( $attachments[ 0 ]->ID );
                                }
                            }

                            else {
                                // or, if there's only 1 image, get the URL of the image
                                $next_attachment_url = wp_get_attachment_url();
                            }

                            ?>

                            <a href="<?php echo esc_url( $next_attachment_url ); ?>" title="<?php the_title_attribute(); ?>" rel="attachment"><?php
                            $attachment_size = apply_filters( 'tc_customizr_attachment_size' , array( 960, 960 ) );
                            echo wp_get_attachment_image( $post->ID, $attachment_size );
                            ?></a>

                        <?php else : // if fancybox option checked ?>

                            <?php
                            //get attachement src
                            $attachment_infos       = wp_get_attachment_image_src( $post->ID , 'large' );
                            $attachment_src         = $attachment_infos[0];
                            ?>

                            <a href="<?php echo $attachment_src; ?>" title="<?php the_title_attribute(); ?>" class="grouped_elements" rel="tc-fancybox-group<?php echo $post -> ID ?>"><?php
                            $attachment_size = apply_filters( 'tc_customizr_attachment_size' , array( 960, 960 ) );
                            echo wp_get_attachment_image( $post->ID, $attachment_size );
                            ?></a>

                            <div id="hidden-attachment-list" style="display:none">

                                <?php foreach ( $attachments as $k => $attachment ) : //get all related galery attachement for lightbox navigation ?>

                                    <?php
                                    $rel_attachment_infos       = wp_get_attachment_image_src( $attachment->ID , 'large' );
                                    $rel_attachment_src         = $rel_attachment_infos[0];
                                    ?>

                                    <a href="<?php echo $rel_attachment_src ; ?>" title="<?php printf('%1$s', !empty( $attachment->post_excerpt ) ? $attachment->post_excerpt :  $attachment->post_title ) ?>" class="grouped_elements" rel="tc-fancybox-group<?php echo $post -> ID ?>"><?php echo $rel_attachment_src ; ?></a>

                                <?php endforeach ?>

                            </div><!--/#hidden-attachment-list-->

                        <?php endif //end if fancybox option checked ?>

                        <?php if ( ! empty( $post->post_excerpt ) ) : ?>

                            <div class="entry-caption">
                                <?php the_excerpt(); ?>
                            </div>

                        <?php endif; ?>

                    </div><!-- .attachment -->

                </div><!-- .entry-attachment -->

            </section><!-- .entry-content -->

            <?php do_action( '__after_content' ) ?>

            <?php
            $html = ob_get_contents();
            if ($html) ob_end_clean();
            echo apply_filters( 'tc_attachment_content', $html );

        }//end of function
    }//end of class
endif;
