<?php

// create the shortcode
add_shortcode( 'portfolio_slideshow', 'portfolio_slideshow_pro_shortcode' );

// define the shortcode function
function portfolio_slideshow_pro_shortcode( $atts ) {

    global $ps_options;

    extract( shortcode_atts( array(
        'size' => $ps_options['size'],
        'nowrap' => '',  //kept for compatibility with previous versions of the plugin
        'loop' => $ps_options['loop'],
        'speed' => $ps_options['speed'],
        'delay' => '0',
        'trans' => $ps_options['trans'],
        'centered' => $ps_options['centered'],
        'height'    => '',
        'width' => '',
        'timeout' => $ps_options['timeout'],
        'exclude_featured'  => $ps_options['exclude_featured'],
        'autoplay' => $ps_options['autoplay'],
        'duration'  =>  '',
        'audio' =>  '',
        'audio_loop' => false,
        'showinfo' => $ps_options['showinfo'],
        'showplay' => $ps_options['showplay'],
        'pagerpos' => $ps_options['pagerpos'],
        'metapos' => $ps_options['metapos'],
        'metacontent' => '',
        'slidelinks' => '',
        'post_titles' => '',
        'pagerstyle' => $ps_options['pagerstyle'],
        'togglethumbs' => $ps_options['togglethumbs'],
        'togglestate' => $ps_options['togglestate'],
        'thumbnailsize' => $ps_options['thumbsize'],
        'thumbnailmargin' => $ps_options['thumbnailmargin'],
        'proportionalthumbs' => $ps_options['proportionalthumbs'],
        'video' => false,
        'navpos' => $ps_options['navpos'],
        'fancygrid' => $ps_options['fancygrid'],
        'fullscreen' => $ps_options['fullscreen'],
        'random' => $ps_options['random'],
        'carousel' => '', //kept for compatibility with previous versions of the plugin
        'carouselsize' => $ps_options['carouselsize'],
        'navstyle' => $ps_options['navstyle'],
        'showcaps' => $ps_options['showcaps'],
        'showtitles' => $ps_options['showtitles'],
        'showdesc' => $ps_options['showdesc'],
        'click' => $ps_options['click'],
        'target' => $ps_options['target'],
        'fluid' =>  $ps_options['allowfluid'],
        'crop'  => $ps_options['crop'],
        'slideheight' => '',
        'pagerwidth' => '',
        'class' =>  '',
        'id' => '',
        'limit' => '-1',
        'posttype' => '',
        'order' => 'DESC',
        'orderby' => 'date',
        'taxname' => '',
        'tax' => '',
        'category' => '',
        'tag' => '',
        'exclude' => '',
        'include' => '',
        'ids' => ''
    ), $atts ) );

    /* Has a custom post id been declared or should we use current page ID? */

    if ( ! $id ) $id = get_the_ID();
    $slideKey = rand(1,999999);

    if ( $include ) $include = explode(',', $include);
    if ( $exclude ) $exclude = explode(',', $exclude);
    if ( $ids ) $include = explode(',', $ids);

    if ( !$include ) $slidemeta = get_post_meta( $id, '_portfolio_slideshow', true );

    if ( $slidemeta ) {
        foreach ( $slidemeta as $item ) {
            if ( !empty( $item['image'] ) ) {
                $include[] = $item['image'];
            }

            if ( !empty( $item['caption'] ) ) {
                $metacontent[] = $item['caption'];
            } else {
                $metacontent[] = '';
            }

            if ( !empty( $item['url'] ) ) {
                $slidelinks[] = $item['url'];
            } else {
                $slidelinks[] = '';
            }
        }
    }

    if ( ps_plugin_is_active('portfolio-slideshow-pro-image-taxonomies') && !$posttype ) {
        if ( $category || $tag ) {
            global $include, $post_titles, $metacontent, $slidelinks;
            psp_taxonomy_query( $category, $tag, $limit );
            wp_reset_postdata();
        }
    }

    if ( $posttype ) {
        global $include, $post_titles, $slidelinks;
        psp_post_query( $posttype, $taxname, $tax, $category, $tag, $limit, $order, $orderby );
        wp_reset_postdata();
    }

    if ( $metacontent && is_string($metacontent) ) $metacontent = explode('@@@', $metacontent);
    if ( $slidelinks && is_string($slidelinks) ) $slidelinks = explode('@@@', $slidelinks);

    /* If the exclude_featured attribute is set, get the featured thumb ID and add it to the $exclude string */
    if ( $exclude_featured == "true" && current_theme_supports( 'post-thumbnails' ) ) {
        $featured_id = get_post_thumbnail_id( $id );
        $exclude[] = $featured_id;
    }

    /* Now we exclude any images that have been marked as "exclude" in the Gallery tab */
    $attachments = get_children( array('post_parent' => $id, 'post_type' => 'attachment', 'post_mime_type' => 'image', 'meta_key' => '_ps_exclude_checkbox', 'meta_value' => 'exclude') );

    if ( $attachments ) {
        foreach ( $attachments as $attachment ) {
            $exclude[] = $attachment->ID;
        }
    }

    /* Turn thumbnail size into array if necessary */
    $thumbnailarray = strpos($thumbnailsize, ',');
    if ( $thumbnailarray ) {
        $thumbnailsize = explode(',', $thumbnailsize);
    } else {
        $newsize[] = $thumbnailsize;
        $newsize[] = $thumbnailsize;
        $thumbnailsize = $newsize;
    }

    /* Custom orderby if random == true */
    if ( $random == "true" ) {
        $orderby="rand";
    } else {
        $orderby="menu_order ID";
    }

    if ( $include ) {
        $include = preg_replace( '/[^0-9,]+/', '', $include );
        $attachments = array(
            'post_type'      => 'attachment',
            'post_status'    => 'any',
            'post__in'       => $include,
            'posts_per_page' => -1
        );
    } elseif ( $exclude ) {
        $exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
        $attachments = array(
            'order'          => 'ASC',
            'orderby'        => $orderby,
            'post_type'      => 'attachment',
            'post_parent'    => $id,
            'post_mime_type' => 'image',
            'post_status'    => 'any',
            'posts_per_page' => -1,
            'post__not_in'   => $exclude
        );
    } else {
        $attachments = array(
            'order'          => 'ASC',
            'orderby'        => $orderby,
            'post_type'      => 'attachment',
            'post_parent'    => $id,
            'post_mime_type' => 'image',
            'post_status'    => 'any',
            'posts_per_page' => -1
        );
    }

    /* The main query */

    $psp_query = new WP_Query($attachments);

    if ( $include ) {
        // set the menu_order
        psp_set_include_order($psp_query, $include);

        // and actually sort the posts in our query
        usort($psp_query->posts, 'psp_menu_order_sort');
    }

    global $ps_count;
    $ps_count = $psp_query->post_count;

    /*
     * Overrides
     */

    if ( $audio ) { $psaudio = "true"; } else { $psaudio = "false"; }

    /* If carousel is true, change the pager option (legacy support) */
    if ( $carousel == "true" ) $pagerstyle = "carousel";

    /* If a click target is set, map that to the proper options */
    if ( $target == "current" || $target == "" || $target == "_self" ) {
        $target = "_self";
    } elseif ( $target == "parent" ) {
        $target = "_parent";
    } else {
        $target = "_blank";
    }

    /* If fancygrid is active, force the correct options */
    if ( $fancygrid == "true" ) {
        $pagerpos = "top";
        $pagerstyle = "thumbs";
        $trans = "fade";
        $speed = 100;
        $togglethumbs = "true";
    }

    if ( $crop != "true" ) { $crop = false; }

    /* Preserve the nowrap option if people are still using it */
    if ( $nowrap == "false" || $loop == "true" ) { $loop = "true"; } else { $loop = "false"; }

    /* Override the per-slide timeout if a full-slideshow duration is set */
    if ( $duration ) { $timeout = ( $duration * 1000 ) / $ps_count; }


    if ( ! is_feed() && $ps_count != 0 ) {
        $slideshow =
        '<script type="text/javascript">/* <![CDATA[ */ psTimeout['.$slideKey.']='.$timeout.';psAudio['.$slideKey.']='.$psaudio.';psAutoplay['.$slideKey.']='.$autoplay.';psDelay['.$slideKey.']='.$delay.';psTrans['.$slideKey.']=\''.$trans.'\';psLoop['.$slideKey.']='.$loop.';psCarouselSize['.$slideKey.']='.$carouselsize.';psSpeed['.$slideKey.']='.$speed.';psPagerStyle['.$slideKey.']=\''.$pagerstyle.'\';psClickOpens['.$slideKey.']=\''.$click.'\';/* ]]> */</script>';

        //wrap the whole thing in a div for styling
        $slideshow .= '<div id="slideshow-wrapper'.$slideKey.'" class="slideshow-wrapper clearfix';

        if ( $centered == "true" ) {
            $slideshow .= " centered";
        }

        if ( $fancygrid == "true" ) {
            $slideshow .= " fancygrid";
        }
        if ( $click == "fullscreen" || $fullscreen == "true" ) {
            $slideshow .= " photoswipe";
        }

        if ( $togglestate == "open" ) {
            $slideshow .= " toggle-open";
        } else {
            $slideshow .= " toggle-closed";
        }

        if ( $fluid == "true" ) {
            $slideshow .= " fluid";
        }

        if ( $class ) {
            $slideshow .= " $class";
        }

        $slideshow .='"><a id="psprev'.$slideKey.'" href="javascript: void(0);"></a><a id="psnext'.$slideKey.'" href="javascript: void(0);"></a>
        ';

        if ( $navpos == 'top' ) {
            $slideshow .= psp_slideshow_navigation( $slideKey, $ps_count, $navstyle, $pagerstyle, $pagerpos, $togglethumbs, $fullscreen, $showinfo, $showplay );
        }

        if ( $pagerpos == 'top' ) {
            $slideshow .= psp_slideshow_pager( $slideKey, $ps_count, $psp_query, $pagerstyle, $carouselsize, $togglethumbs, $proportionalthumbs, $centered, $pagerwidth, $thumbnailmargin, $thumbnailsize );
        }

        if ( $metapos == 'top' ) {
            $slideshow .= psp_slideshow_meta( $showtitles, $showcaps, $showdesc, $post_titles, $metacontent, $slideKey, $psp_query, $centered );
        }

        $slideshow .= '<div id="portfolio-slideshow'.$slideKey.'" class="portfolio-slideshow';

        if ( $ps_options['showloader'] == "true" ) {
            $slideshow .= " showloader";
        }

        $slideshow .= '"';

        /* An inline style if they need to set a height for the main slideshow container */

        if ( $slideheight ) {
            $slideshow .= ' style="min-height:' . $slideheight . 'px !important;"';
        }

        $slideshow .='>
        ';

} //end ! is_feed()

    $slideID = 0;
    //begin the slideshow loop
    while( $psp_query->have_posts() ) : $psp_query->the_post();
        global $post;
        $custom_fields = get_post_custom($id);
        if ( $slidelinks ) {
            if(isset($slidelinks[$slideID])) :
                $imagelink = $slidelinks[$slideID];
            endif;
        } else {
            $imagelink = get_post_meta( $post->ID, '_ps_image_link', true );
        }

        if ( $width && $height ) {
            $videowidth = $width;
            $videoheight = $height;
        } else {
            $videowidth = '640';
            $videoheight = '360';
        }

        if (preg_match('/ww=[0-9]+/i', $imagelink, $ww)) {
            $videowidth = str_replace('ww=','',$ww[0]);
        }

        if (preg_match('/wh=[0-9]+/i', $imagelink, $wh)) {
            $videoheight = str_replace('wh=','',$wh[0]);
        }

        if (preg_match('%(?:youtube\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $imagelink, $match)) {

        $video = true;

        $videoembed = '<div class="ps-video-wrapper"><iframe class="ps-video" width="' . $videowidth . '" height="' . $videoheight . '" data-src="http://www.youtube.com/embed/' . $match[1] . '" frameborder="0" allowfullscreen></iframe></div>';
                }

        if (preg_match('%(?:vimeo\.com/(\d+))%i', $imagelink, $match)) {

            $video = true;
            $videoembed = '<div class="ps-video-wrapper"><iframe class="ps-video" data-src="http://player.vimeo.com/video/' . $match[1] . '" width="' . $videowidth . '" height="' . $videoheight . '" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe></div>';

        }

        $alttext = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );

        if ( ! $alttext ) {
            $alttext = $post->post_title;
        }

        $slideshow .= '<div class="';
        if ( $slideID != "0" ) { $slideshow .= "not-first "; }
        if ( $loop != "true" && $slideKey == ( $ps_count - 1 ) && $click == "advance" || $click == "none" ) { $slideshow .= "psp-no-click "; }
        $slideshow .= 'slideshow-content';
        $slideshow .= '">
        ';

        if ( $ps_count == 1 && $click == "advance" ) $click = "none";
        switch ( $click ) {

            case "lightbox" :
                $image = psp_resize( $post->ID, '', 1600, 1600, false );
                $imagelink = $image['url'] . '" class="fancybox" rel="group-'.$slideKey;

                if ( $showcaps == "true" ) {
                    $caption = $post->post_excerpt;
                    $imagelink = $imagelink . '" title="' . $caption . '';
                }

                break;

            case "openurl" :

                if ( is_array( $slidelinks ) ) {
                    $imagelink = $slidelinks[$slideID];
                } else {
                    $imagelink = get_post_meta( $post->ID, '_ps_image_link', true );
                }

                if ( $imagelink ) { $imagelink = $imagelink . '" target="' . $target . '" class="' . $target; } else {
                    $imagelink = 'javascript: void(0);" class="slideshow-next' . $target;
                }

                break;

            case "postlink":

                if ( is_array( $slidelinks ) ) {
                    $imagelink = $slidelinks[$slideID];
                } else {
                    $imagelink = 'javascript: void(0);" class="slideshow-next';
                }
                break;

            case "attachment" :

                $imagelink = get_attachment_link();

                break;

            case "fullscreen" :

                $photoswipe_imgsrc = wp_get_attachment_image_src( $post->ID, 'full' );
                $imagelink = $photoswipe_imgsrc[0] . '" class="ps-photoswipe';

                break;

            case "none" :

                $imagelink = 'javascript: void(0);" class="psp-no-click';
                break;

            default :
                $imagelink = 'javascript: void(0);" class="slideshow-next';
                break;
        }

        if ( $video != true ) {
            $slideshow .= '<a href="' . $imagelink . '">';
        }

/*
* This is the part of the loop that actually returns the images
*/
            if ( is_feed() ) { /* No slideshow if we're in the feed */
                $feedimg = wp_get_attachment_image_src( $post->ID, 'large' );
                $slideshow .= '<img style="margin-bottom:15px" src="' . $feedimg[0] . '"/><br />';

            } else { /* Slideshow output */

            $ps_placeholder = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==';

            if ( $width || $height ) {

            /* Determine if we've got an explicit height or width in the shortcode */

                if ( ! $width ) { $width = 9999; $crop = false; }
                if ( ! $height ) { $height = 9999; $crop = false; }

                $image = psp_resize( $post->ID, '', $width, $height, $crop );

            } elseif ( $size == "custom" ) {

                /* If we're using a defined custom size */

                $image = psp_resize( $post->ID, '', $ps_options['customwidth'], $ps_options['customheight'], $crop );

            } else {

                /* Otherwise it's just one of the WP defaults, so create an array to match our other formats  */

                $imgsrc = wp_get_attachment_image_src( $post->ID, $size );

                $image = array(
                    "url" => $imgsrc[0],
                    "width" => $imgsrc[1],
                    "height" => $imgsrc[2]
                );

            }

            if ( $video == true ) {

                $slideshow .= $videoembed;

            } else { // if it's not a video, return the usual slideshow

                $slideshow .= '<img class="psp-active"';

                if ( $fluid != "true" ) {
                    $slideshow .= ' height="' . $image['height'] . '" width="' . $image['width'] . '"';
                 }

                $slideshow .= ' data-img="' . $image['url'] . '"';

                if ( $slideID < 2 ) {
                    $slideshow .= ' src="' . $image['url'] . '"';
                } else {
                    $slideshow .= ' src="' . $ps_placeholder . '"';
                }

                //include the real src attribute for the first two slides only

                $slideshow .= ' alt="' . $alttext . '" /><noscript><img src="' . $image['url'] . '" alt="' . $alttext . '" /></noscript>';

            } /* End $video == true */

            } /* End is_feed determination for slideshow */

        /*
        * That's it for the images
        */

        if ( $video != true ) {
            $slideshow .= "</a>";
        }

        if ( $fullscreen == "true" && $click != "fullscreen") {
            $photoswipe_imgsrc = wp_get_attachment_image_src( $post->ID, 'full' );
            $imagelink = $photoswipe_imgsrc[0];
            $slideshow .= '<a href="' . $imagelink . '" class="ps-photoswipe" style="display:none"></a>';
        }

        $slideshow .= '</div><!-- .slideshow-content -->
        ';

        $slideID++;

        $video = false;
    endwhile;
    wp_reset_postdata();
    // end slideshow loop

    if ( ! is_feed() && $ps_count != 0 ) {

        $slideshow .= "</div><!--#portfolio-slideshow-->";

        if ( $metapos == 'middle' ) {
            $slideshow .= psp_slideshow_meta( $showtitles, $showcaps, $showdesc, $post_titles, $metacontent, $slideKey, $psp_query, $centered );
        }

        if ( $navpos == "middle" ) {
            $slideshow .= psp_slideshow_navigation( $slideKey, $ps_count, $navstyle, $pagerstyle, $pagerpos, $togglethumbs, $fullscreen, $showinfo, $showplay );
        }

        if ( $pagerpos == "middle" ) {
            $slideshow .= psp_slideshow_pager( $slideKey, $ps_count, $psp_query, $pagerstyle, $carouselsize, $togglethumbs, $proportionalthumbs, $centered, $pagerwidth, $thumbnailmargin, $thumbnailsize );
        }

        if ( $metapos == 'bottom' ) {
            $slideshow .= psp_slideshow_meta( $showtitles, $showcaps, $showdesc, $post_titles, $metacontent, $slideKey, $psp_query, $centered );
        }

        if ( $navpos == "bottom" ) {
            $slideshow .= psp_slideshow_navigation( $slideKey, $ps_count, $navstyle, $pagerstyle, $pagerpos, $togglethumbs, $fullscreen, $showinfo, $showplay );
        }

        if ( $pagerpos == "bottom" ) {
            $slideshow .= psp_slideshow_pager( $slideKey, $ps_count, $psp_query, $pagerstyle, $carouselsize, $togglethumbs, $proportionalthumbs, $centered, $pagerwidth, $thumbnailmargin, $thumbnailsize );
        }

        $slideshow .='</div><!--#slideshow-wrapper-->';

    } /* End ! is_feed() */

    if ( $audio ) {
        if(!empty($audio_loop) && $audio_loop == true) {
            $slideshow .= do_shortcode("[haiku url=$audio class='portfolio_slideshow_audio' defaultpath=disabled graphical=false loop=true]");
        } else {
            $slideshow .= do_shortcode("[haiku url=$audio class='portfolio_slideshow_audio'  defaultpath=disabled graphical=false loop=false]");
        }
    }

    if ( isset( $slideshow ) ) return $slideshow;   //that's the slideshow


} //ends the portfolio_shortcode function ?>