rework the conversation object stuff at a high level - still needs a bit of refactoring

3 files changed, 1047 insertions, 0 deletions

diff --git a/Zotlabs/Lib/System.php b/Zotlabs/Lib/System.php
new file mode 100644
index 000000000..c52a90338
--- /dev/null
+++ b/Zotlabs/Lib/System.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Zotlabs\Lib;
+
+class System {
+
+	static public function get_platform_name() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && array_key_exists('platform_name',\App::$config['system']))
+			return \App::$config['system']['platform_name'];
+		return PLATFORM_NAME;
+	}
+
+	static public function get_site_name() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['sitename'])
+			return \App::$config['system']['sitename'];
+		return '';
+	}
+
+	static public function get_project_version() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['hide_version'])
+			return '';
+		return self::get_std_version();
+	}
+
+	static public function get_update_version() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['hide_version'])
+			return '';
+		return DB_UPDATE_VERSION;
+	}
+
+
+	static public function get_notify_icon() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['email_notify_icon_url'])
+			return \App::$config['system']['email_notify_icon_url'];
+		return z_root() . '/images/hz-white-32.png';
+	}
+
+	static public function get_site_icon() {
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['site_icon_url'])
+			return \App::$config['system']['site_icon_url'];
+		return z_root() . '/images/hz-32.png';
+	}
+
+
+	static public function get_server_role() {
+		if(UNO)
+			return 'basic';
+		return 'pro';
+	}
+
+	static public function get_std_version() {
+		if(defined('STD_VERSION'))
+			return STD_VERSION;
+		return '0.0.0';
+	}
+
+
+}
diff --git a/Zotlabs/Lib/ThreadItem.php b/Zotlabs/Lib/ThreadItem.php
new file mode 100644
index 000000000..0ba0c0a13
--- /dev/null
+++ b/Zotlabs/Lib/ThreadItem.php
@@ -0,0 +1,769 @@
+<?php /** @file */
+
+namespace Zotlabs\Lib;
+
+require_once('include/text.php');
+
+/**
+ * A thread item
+ */
+
+class ThreadItem {
+
+	public  $data = array();
+	private $template = 'conv_item.tpl';
+	private $comment_box_template = 'comment_item.tpl';
+	private $commentable = false;
+	private $toplevel = false;
+	private $children = array();
+	private $parent = null;
+	private $conversation = null;
+	private $redirect_url = null;
+	private $owner_url = '';
+	private $owner_photo = '';
+	private $owner_name = '';
+	private $wall_to_wall = false;
+	private $threaded = false;
+	private $visiting = false;
+	private $channel = null;
+	private $display_mode = 'normal';
+
+
+	public function __construct($data) {
+				
+		$this->data = $data;
+		$this->toplevel = ($this->get_id() == $this->get_data_value('parent'));
+
+		// Prepare the children
+		if(count($data['children'])) {
+			foreach($data['children'] as $item) {
+
+				/*
+				 * Only add those that will be displayed
+				 */
+
+				if((! visible_activity($item)) || array_key_exists('author_blocked',$item)) {
+					continue;
+				}
+
+				$child = new ThreadItem($item);
+				$this->add_child($child);
+			}
+		}
+	}
+
+	/**
+	 * Get data in a form usable by a conversation template
+	 *
+	 * Returns:
+	 *      _ The data requested on success
+	 *      _ false on failure
+	 */
+
+	public function get_template_data($conv_responses, $thread_level=1) {
+	
+		$result = array();
+
+		$item     = $this->get_data();
+
+		$commentww = '';
+		$sparkle = '';
+		$buttons = '';
+		$dropping = false;
+		$star = false;
+		$isstarred = "unstarred fa-star-o";
+		$indent = '';
+		$osparkle = '';
+		$total_children = $this->count_descendants();
+		$unseen_comments = (($item['real_uid']) ? 0 : $this->count_unseen_descendants());
+
+		$conv = $this->get_conversation();
+		$observer = $conv->get_observer();
+
+		$lock = ((($item['item_private'] == 1) || (($item['uid'] == local_channel()) && (strlen($item['allow_cid']) || strlen($item['allow_gid']) 
+			|| strlen($item['deny_cid']) || strlen($item['deny_gid']))))
+			? t('Private Message')
+			: false);
+		$shareable = ((($conv->get_profile_owner() == local_channel() && local_channel()) && ($item['item_private'] != 1)) ? true : false);
+
+		// allow an exemption for sharing stuff from your private feeds
+		if($item['author']['xchan_network'] === 'rss')
+			$shareable = true;
+
+		$mode = $conv->get_mode();
+
+		if(local_channel() && $observer['xchan_hash'] === $item['author_xchan'])
+			$edpost = array(z_root()."/editpost/".$item['id'], t("Edit"));
+		else
+			$edpost = false;
+
+
+		if($observer['xchan_hash'] == $this->get_data_value('author_xchan') 
+			|| $observer['xchan_hash'] == $this->get_data_value('owner_xchan') 
+			|| $this->get_data_value('uid') == local_channel())
+			$dropping = true;
+
+
+		if(array_key_exists('real_uid',$item)) {
+			$edpost = false;
+			$dropping = false;
+		}
+
+
+		if($dropping) {
+			$drop = array(
+				'dropping' => $dropping,
+				'delete' => t('Delete'),
+			);
+		}		
+// FIXME
+		if($observer_is_pageowner) {		
+			$multidrop = array(
+				'select' => t('Select'), 
+			);
+		}
+
+		$filer = ((($conv->get_profile_owner() == local_channel()) && (! array_key_exists('real_uid',$item))) ? t("Save to Folder") : false);
+
+		$profile_avatar = $item['author']['xchan_photo_m'];
+		$profile_link   = chanlink_url($item['author']['xchan_url']);
+		$profile_name   = $item['author']['xchan_name'];
+
+		$location = format_location($item);
+		$isevent = false;
+		$attend = null;
+		$canvote = false;
+
+		// process action responses - e.g. like/dislike/attend/agree/whatever
+		$response_verbs = array('like');
+		if(feature_enabled($conv->get_profile_owner(),'dislike'))
+			$response_verbs[] = 'dislike';
+		if($item['obj_type'] === ACTIVITY_OBJ_EVENT) {
+			$response_verbs[] = 'attendyes';
+			$response_verbs[] = 'attendno';
+			$response_verbs[] = 'attendmaybe';
+			if($this->is_commentable()) {
+				$isevent = true;
+				$attend = array( t('I will attend'), t('I will not attend'), t('I might attend'));
+			}
+		}
+
+		$consensus = (intval($item['item_consensus']) ? true : false);
+		if($consensus) {
+			$response_verbs[] = 'agree';
+			$response_verbs[] = 'disagree';
+			$response_verbs[] = 'abstain';
+			if($this->is_commentable()) {
+				$conlabels = array( t('I agree'), t('I disagree'), t('I abstain'));
+				$canvote = true;
+			}
+		}
+
+		if(! feature_enabled($conv->get_profile_owner(),'dislike'))
+			unset($conv_responses['dislike']);
+  
+		$responses = get_responses($conv_responses,$response_verbs,$this,$item);
+
+		$like_count = ((x($conv_responses['like'],$item['mid'])) ? $conv_responses['like'][$item['mid']] : '');
+		$like_list = ((x($conv_responses['like'],$item['mid'])) ? $conv_responses['like'][$item['mid'] . '-l'] : '');
+		if (count($like_list) > MAX_LIKERS) {
+			$like_list_part = array_slice($like_list, 0, MAX_LIKERS);
+			array_push($like_list_part, '<a href="#" data-toggle="modal" data-target="#likeModal-' . $this->get_id() . '"><b>' . t('View all') . '</b></a>');
+		} else {
+			$like_list_part = '';
+		}
+		$like_button_label = tt('Like','Likes',$like_count,'noun');
+
+		if (feature_enabled($conv->get_profile_owner(),'dislike')) {
+			$dislike_count = ((x($conv_responses['dislike'],$item['mid'])) ? $conv_responses['dislike'][$item['mid']] : '');
+			$dislike_list = ((x($conv_responses['dislike'],$item['mid'])) ? $conv_responses['dislike'][$item['mid'] . '-l'] : '');
+			$dislike_button_label = tt('Dislike','Dislikes',$dislike_count,'noun');
+			if (count($dislike_list) > MAX_LIKERS) {
+				$dislike_list_part = array_slice($dislike_list, 0, MAX_LIKERS);
+				array_push($dislike_list_part, '<a href="#" data-toggle="modal" data-target="#dislikeModal-' . $this->get_id() . '"><b>' . t('View all') . '</b></a>');
+			} else {
+				$dislike_list_part = '';
+			}
+		}
+
+		$showlike    = ((x($conv_responses['like'],$item['mid'])) ? format_like($conv_responses['like'][$item['mid']],$conv_responses['like'][$item['mid'] . '-l'],'like',$item['mid']) : '');
+		$showdislike = ((x($conv_responses['dislike'],$item['mid']) && feature_enabled($conv->get_profile_owner(),'dislike'))  
+				? format_like($conv_responses['dislike'][$item['mid']],$conv_responses['dislike'][$item['mid'] . '-l'],'dislike',$item['mid']) : '');
+
+		/*
+		 * We should avoid doing this all the time, but it depends on the conversation mode
+		 * And the conv mode may change when we change the conv, or it changes its mode
+		 * Maybe we should establish a way to be notified about conversation changes
+		 */
+
+		$this->check_wall_to_wall();
+		
+		if($this->is_toplevel()) {
+			// FIXME check this permission
+			if(($conv->get_profile_owner() == local_channel()) && (! array_key_exists('real_uid',$item))) {
+
+// FIXME we don't need all this stuff, some can be done in the template
+
+				$star = array(
+					'do' => t("Add Star"),
+					'undo' => t("Remove Star"),
+					'toggle' => t("Toggle Star Status"),
+					'classdo' => (intval($item['item_starred']) ? "hidden" : ""),
+					'classundo' => (intval($item['item_starred']) ? "" : "hidden"),
+					'isstarred' => (intval($item['item_starred']) ? "starred fa-star" : "unstarred fa-star-o"),
+					'starred' =>  t('starred'),
+				);
+
+			}
+		} 
+		else {
+			$indent = 'comment';
+		}
+
+
+		$verified = (intval($item['item_verified']) ? t('Message signature validated') : '');
+		$forged = ((($item['sig']) && (! intval($item['item_verified']))) ? t('Message signature incorrect') : '');
+		$unverified = '' ; // (($this->is_wall_to_wall() && (! intval($item['item_verified']))) ? t('Message cannot be verified') : '');
+
+
+
+		// FIXME - check this permission
+		if($conv->get_profile_owner() == local_channel()) {
+			$tagger = array(
+				'tagit' => t("Add Tag"),
+				'classtagger' => "",
+			);
+		}
+
+		$has_bookmarks = false;
+		if(is_array($item['term'])) {
+			foreach($item['term'] as $t) {
+				if(!UNO && $t['type'] == TERM_BOOKMARK)
+					$has_bookmarks = true;
+			}
+		}
+
+		$has_event = false;
+		if(($item['obj_type'] === ACTIVITY_OBJ_EVENT) && $conv->get_profile_owner() == local_channel())
+			$has_event = true;
+
+		if($this->is_commentable()) {
+			$like = array( t("I like this \x28toggle\x29"), t("like"));
+			$dislike = array( t("I don't like this \x28toggle\x29"), t("dislike"));
+		}
+
+		if ($shareable)
+			$share = array( t('Share This'), t('share'));
+
+		$dreport = '';
+
+		$keep_reports = intval(get_config('system','expire_delivery_reports'));
+		if($keep_reports === 0)
+			$keep_reports = 30;
+
+		if((! get_config('system','disable_dreport')) && strcmp(datetime_convert('UTC','UTC',$item['created']),datetime_convert('UTC','UTC',"now - $keep_reports days")) > 0)
+			$dreport = t('Delivery Report');
+
+		if(strcmp(datetime_convert('UTC','UTC',$item['created']),datetime_convert('UTC','UTC','now - 12 hours')) > 0)
+			$indent .= ' shiny';
+
+
+		localize_item($item);
+
+		$body = prepare_body($item,true);
+
+		// $viewthread (below) is only valid in list mode. If this is a channel page, build the thread viewing link
+		// since we can't depend on llink or plink pointing to the right local location.
+ 
+		$owner_address = substr($item['owner']['xchan_addr'],0,strpos($item['owner']['xchan_addr'],'@'));
+		$viewthread = $item['llink'];
+		if($conv->get_mode() === 'channel')
+			$viewthread = z_root() . '/channel/' . $owner_address . '?f=&mid=' . $item['mid'];
+
+		$comment_count_txt = sprintf( tt('%d comment','%d comments',$total_children),$total_children );
+		$list_unseen_txt = (($unseen_comments) ? sprintf('%d unseen',$unseen_comments) : '');
+		
+
+
+		
+
+		$children = $this->get_children();
+
+		$has_tags = (($body['tags'] || $body['categories'] || $body['mentions'] || $body['attachments'] || $body['folders']) ? true : false);
+
+		$tmp_item = array(
+			'template' => $this->get_template(),
+			'mode' => $mode,			
+			'type' => implode("",array_slice(explode("/",$item['verb']),-1)),
+			'body' => $body['html'],
+			'tags' => $body['tags'],
+			'categories' => $body['categories'],
+			'mentions' => $body['mentions'],
+			'attachments' => $body['attachments'],
+			'folders' => $body['folders'],
+			'text' => strip_tags($body['html']),
+			'id' => $this->get_id(),
+			'mid' => $item['mid'],
+			'isevent' => $isevent,
+			'attend' => $attend,
+			'consensus' => $consensus,
+			'conlabels' => $conlabels,
+			'canvote' => $canvote,
+			'linktitle' => sprintf( t('View %s\'s profile - %s'), $profile_name, $item['author']['xchan_addr']),
+			'olinktitle' => sprintf( t('View %s\'s profile - %s'), $this->get_owner_name(), $item['owner']['xchan_addr']),
+			'llink' => $item['llink'],
+			'viewthread' => $viewthread,
+			'to' => t('to'),
+			'via' => t('via'),
+			'wall' => t('Wall-to-Wall'),
+			'vwall' => t('via Wall-To-Wall:'),
+			'profile_url' => $profile_link,
+			'item_photo_menu' => item_photo_menu($item),
+			'dreport' => $dreport,
+			'name' => $profile_name,
+			'thumb' => $profile_avatar,
+			'osparkle' => $osparkle,
+			'sparkle' => $sparkle,
+			'title' => $item['title'],
+			'title_tosource' => get_pconfig($conv->get_profile_owner(),'system','title_tosource'),
+			'ago' => relative_date($item['created']),
+			'app' => $item['app'],
+			'str_app' => sprintf( t('from %s'), $item['app']),
+			'isotime' => datetime_convert('UTC', date_default_timezone_get(), $item['created'], 'c'),
+			'localtime' => datetime_convert('UTC', date_default_timezone_get(), $item['created'], 'r'),
+			'editedtime' => (($item['edited'] != $item['created']) ? sprintf( t('last edited: %s'), datetime_convert('UTC', date_default_timezone_get(), $item['edited'], 'r')) : ''),
+			'expiretime' => (($item['expires'] !== NULL_DATE) ? sprintf( t('Expires: %s'), datetime_convert('UTC', date_default_timezone_get(), $item['expires'], 'r')):''),
+			'lock' => $lock,
+			'verified' => $verified,
+			'unverified' => $unverified,
+			'forged' => $forged,
+			'location' => $location,
+			'indent' => $indent,
+			'owner_url' => $this->get_owner_url(),
+			'owner_photo' => $this->get_owner_photo(),
+			'owner_name' => $this->get_owner_name(),
+			'photo' => $body['photo'],
+			'event' => $body['event'],
+			'has_tags' => $has_tags,
+
+// Item toolbar buttons
+			'like'      => $like,
+			'dislike'   => ((feature_enabled($conv->get_profile_owner(),'dislike')) ? $dislike : ''),
+			'share'     => $share,
+			'rawmid'	=> $item['mid'],
+			'plink'     => get_plink($item),
+			'edpost'    => $edpost, // ((feature_enabled($conv->get_profile_owner(),'edit_posts')) ? $edpost : ''),
+			'star'      => ((feature_enabled($conv->get_profile_owner(),'star_posts')) ? $star : ''),
+			'tagger'    => ((feature_enabled($conv->get_profile_owner(),'commtag')) ? $tagger : ''),
+			'filer'     => ((feature_enabled($conv->get_profile_owner(),'filing')) ? $filer : ''),
+			'bookmark'  => (($conv->get_profile_owner() == local_channel() && local_channel() && $has_bookmarks) ? t('Save Bookmarks') : ''),
+			'addtocal'  => (($has_event) ? t('Add to Calendar') : ''),
+			'drop'      => $drop,
+			'multidrop' => ((feature_enabled($conv->get_profile_owner(),'multi_delete')) ? $multidrop : ''),
+// end toolbar buttons
+
+			'unseen_comments' => $unseen_comments,
+			'comment_count' => $total_children,
+			'comment_count_txt' => $comment_count_txt,
+			'list_unseen_txt' => $list_unseen_txt,
+			'markseen' => t('Mark all seen'),
+			'responses' => $responses,
+			'like_count' => $like_count,
+			'like_list' => $like_list,
+			'like_list_part' => $like_list_part,
+			'like_button_label' => $like_button_label,
+			'like_modal_title' => t('Likes','noun'),
+			'dislike_modal_title' => t('Dislikes','noun'),
+			'dislike_count' => ((feature_enabled($conv->get_profile_owner(),'dislike')) ? $dislike_count : ''),
+			'dislike_list' => ((feature_enabled($conv->get_profile_owner(),'dislike')) ? $dislike_list : ''),
+			'dislike_list_part' => ((feature_enabled($conv->get_profile_owner(),'dislike')) ? $dislike_list_part : ''),
+			'dislike_button_label' => ((feature_enabled($conv->get_profile_owner(),'dislike')) ? $dislike_button_label : ''),
+			'modal_dismiss' => t('Close'),
+			'showlike' => $showlike,
+			'showdislike' => $showdislike,
+			'comment' => $this->get_comment_box($indent),
+			'previewing' => ($conv->is_preview() ? ' preview ' : ''),
+			'wait' => t('Please wait'),
+			'thread_level' => $thread_level
+		);
+
+		$arr = array('item' => $item, 'output' => $tmp_item);
+		call_hooks('display_item', $arr);
+
+		$result = $arr['output'];
+
+		$result['children'] = array();
+		$nb_children = count($children);
+
+		$visible_comments = get_config('system','expanded_comments');
+		if($visible_comments === false)
+			$visible_comments = 3;
+
+		if(($this->get_display_mode() === 'normal') && ($nb_children > 0)) {
+			foreach($children as $child) {
+				$result['children'][] = $child->get_template_data($conv_responses, $thread_level + 1);
+			}
+			// Collapse
+			if(($nb_children > $visible_comments) || ($thread_level > 1)) {
+				$result['children'][0]['comment_firstcollapsed'] = true;
+				$result['children'][0]['num_comments'] = $comment_count_txt;
+				$result['children'][0]['hide_text'] = t('[+] show all');
+				if($thread_level > 1) {
+					$result['children'][$nb_children - 1]['comment_lastcollapsed'] = true;
+				}
+				else {
+					$result['children'][$nb_children - ($visible_comments + 1)]['comment_lastcollapsed'] = true;
+				}
+			}
+		}
+		
+		$result['private'] = $item['item_private'];
+		$result['toplevel'] = ($this->is_toplevel() ? 'toplevel_item' : '');
+
+		if($this->is_threaded()) {
+			$result['flatten'] = false;
+			$result['threaded'] = true;
+		}
+		else {
+			$result['flatten'] = true;
+			$result['threaded'] = false;
+		}
+
+		return $result;
+	}
+	
+	public function get_id() {
+		return $this->get_data_value('id');
+	}
+
+	public function get_display_mode() {
+		return $this->display_mode;
+	}
+
+	public function set_display_mode($mode) {
+		$this->display_mode = $mode;
+	}
+
+	public function is_threaded() {
+		return $this->threaded;
+	}
+
+	public function set_commentable($val) {
+		$this->commentable = $val;
+		foreach($this->get_children() as $child)
+			$child->set_commentable($val);
+	}
+
+	public function is_commentable() {
+		return $this->commentable;
+	}
+
+	/**
+	 * Add a child item
+	 */
+	public function add_child($item) {
+		$item_id = $item->get_id();
+		if(!$item_id) {
+			logger('[ERROR] Item::add_child : Item has no ID!!', LOGGER_DEBUG);
+			return false;
+		}
+		if($this->get_child($item->get_id())) {
+			logger('[WARN] Item::add_child : Item already exists ('. $item->get_id() .').', LOGGER_DEBUG);
+			return false;
+		}
+		/*
+		 * Only add what will be displayed
+		 */
+
+		if(activity_match($item->get_data_value('verb'),ACTIVITY_LIKE) || activity_match($item->get_data_value('verb'),ACTIVITY_DISLIKE)) {
+			return false;
+		}
+		
+		$item->set_parent($this);
+		$this->children[] = $item;
+		return end($this->children);
+	}
+
+	/**
+	 * Get a child by its ID
+	 */
+	public function get_child($id) {
+		foreach($this->get_children() as $child) {
+			if($child->get_id() == $id)
+				return $child;
+		}
+		return null;
+	}
+
+	/**
+	 * Get all our children
+	 */
+	public function get_children() {
+		return $this->children;
+	}
+
+	/**
+	 * Set our parent
+	 */
+	protected function set_parent($item) {
+		$parent = $this->get_parent();
+		if($parent) {
+			$parent->remove_child($this);
+		}
+		$this->parent = $item;
+		$this->set_conversation($item->get_conversation());
+	}
+
+	/**
+	 * Remove our parent
+	 */
+	protected function remove_parent() {
+		$this->parent = null;
+		$this->conversation = null;
+	}
+
+	/**
+	 * Remove a child
+	 */
+	public function remove_child($item) {
+		$id = $item->get_id();
+		foreach($this->get_children() as $key => $child) {
+			if($child->get_id() == $id) {
+				$child->remove_parent();
+				unset($this->children[$key]);
+				// Reindex the array, in order to make sure there won't be any trouble on loops using count()
+				$this->children = array_values($this->children);
+				return true;
+			}
+		}
+		logger('[WARN] Item::remove_child : Item is not a child ('. $id .').', LOGGER_DEBUG);
+		return false;
+	}
+
+	/**
+	 * Get parent item
+	 */
+	protected function get_parent() {
+		return $this->parent;
+	}
+
+	/**
+	 * set conversation
+	 */
+	public function set_conversation($conv) {
+		$previous_mode = ($this->conversation ? $this->conversation->get_mode() : '');
+		
+		$this->conversation = $conv;
+
+		// Set it on our children too
+		foreach($this->get_children() as $child)
+			$child->set_conversation($conv);
+	}
+
+	/**
+	 * get conversation
+	 */
+	public function get_conversation() {
+		return $this->conversation;
+	}
+
+	/**
+	 * Get raw data
+	 *
+	 * We shouldn't need this
+	 */
+	public function get_data() {
+		return $this->data;
+	}
+
+	/**
+	 * Get a data value
+	 *
+	 * Returns:
+	 *      _ value on success
+	 *      _ false on failure
+	 */
+	public function get_data_value($name) {
+		if(!isset($this->data[$name])) {
+//			logger('[ERROR] Item::get_data_value : Item has no value name "'. $name .'".', LOGGER_DEBUG);
+			return false;
+		}
+
+		return $this->data[$name];
+	}
+
+	/**
+	 * Get template
+	 */
+	public function get_template() {
+		return $this->template;
+	}
+
+
+	public function set_template($t) {
+		$this->template = $t;
+	}
+
+	/**
+	 * Check if this is a toplevel post
+	 */
+	private function is_toplevel() {
+		return $this->toplevel;
+	}
+
+	/**
+	 * Count the total of our descendants
+	 */
+	private function count_descendants() {
+		$children = $this->get_children();
+		$total = count($children);
+		if($total > 0) {
+			foreach($children as $child) {
+				$total += $child->count_descendants();
+			}
+		}
+		return $total;
+	}
+
+	private function count_unseen_descendants() {
+		$children = $this->get_children();
+		$total = count($children);
+		if($total > 0) {
+			$total = 0;
+			foreach($children as $child) {
+				if((! visible_activity($child->data)) || array_key_exists('author_blocked',$child->data)) {
+					continue;
+				}
+				if(intval($child->data['item_unseen']))
+					$total ++;
+			}
+		}
+		return $total;
+	}
+
+
+	/**
+	 * Get the template for the comment box
+	 */
+	private function get_comment_box_template() {
+		return $this->comment_box_template;
+	}
+
+	/**
+	 * Get the comment box
+	 *
+	 * Returns:
+	 *      _ The comment box string (empty if no comment box)
+	 *      _ false on failure
+	 */
+	private function get_comment_box($indent) {
+
+		if(!$this->is_toplevel() && !get_config('system','thread_allow')) {
+			return '';
+		}
+		
+		$comment_box = '';
+		$conv = $this->get_conversation();
+
+//		logger('Commentable conv: ' . $conv->is_commentable());
+
+		if(! $this->is_commentable())
+			return;
+
+		$template = get_markup_template($this->get_comment_box_template());
+
+		$observer = $conv->get_observer();
+
+		$qc = ((local_channel()) ? get_pconfig(local_channel(),'system','qcomment') : null);
+		$qcomment = (($qc) ? explode("\n",$qc) : null);
+
+		$arr = array('comment_buttons' => '','id' => $this->get_id());
+		call_hooks('comment_buttons',$arr);
+		$comment_buttons = $arr['comment_buttons'];
+
+
+		$comment_box = replace_macros($template,array(
+			'$return_path' => '',
+			'$threaded' => $this->is_threaded(),
+			'$jsreload' => '', //(($conv->get_mode() === 'display') ? $_SESSION['return_url'] : ''),
+			'$type' => (($conv->get_mode() === 'channel') ? 'wall-comment' : 'net-comment'),
+			'$id' => $this->get_id(),
+			'$parent' => $this->get_id(),
+			'$qcomment' => $qcomment,
+			'$comment_buttons' => $comment_buttons,
+			'$profile_uid' =>  $conv->get_profile_owner(),
+			'$mylink' => $observer['xchan_url'],
+			'$mytitle' => t('This is you'),
+			'$myphoto' => $observer['xchan_photo_s'],
+			'$comment' => t('Comment'),
+			'$submit' => t('Submit'),
+			'$edbold' => t('Bold'),
+			'$editalic' => t('Italic'),
+			'$eduline' => t('Underline'),
+			'$edquote' => t('Quote'),
+			'$edcode' => t('Code'),
+			'$edimg' => t('Image'),
+			'$edurl' => t('Insert Link'),
+			'$edvideo' => t('Video'),
+			'$preview' => t('Preview'), // ((feature_enabled($conv->get_profile_owner(),'preview')) ? t('Preview') : ''),
+			'$indent' => $indent,
+			'$feature_encrypt' => ((feature_enabled($conv->get_profile_owner(),'content_encrypt')) ? true : false),
+			'$encrypt' => t('Encrypt text'),
+			'$cipher' => $conv->get_cipher(),
+			'$sourceapp' => \App::$sourcename
+
+		));
+
+		return $comment_box;
+	}
+
+	private function get_redirect_url() {
+		return $this->redirect_url;
+	}
+
+	/**
+	 * Check if we are a wall to wall item and set the relevant properties
+	 */
+	protected function check_wall_to_wall() {
+		$conv = $this->get_conversation();
+		$this->wall_to_wall = false;
+		$this->owner_url = '';
+		$this->owner_photo = '';
+		$this->owner_name = '';
+
+		if($conv->get_mode() === 'channel')
+			return;
+		
+		if($this->is_toplevel() && ($this->get_data_value('author_xchan') != $this->get_data_value('owner_xchan'))) {
+			$this->owner_url = chanlink_url($this->data['owner']['xchan_url']);
+			$this->owner_photo = $this->data['owner']['xchan_photo_m'];
+			$this->owner_name = $this->data['owner']['xchan_name'];
+			$this->wall_to_wall = true;
+		}
+	}
+
+	private function is_wall_to_wall() {
+		return $this->wall_to_wall;
+	}
+
+	private function get_owner_url() {
+		return $this->owner_url;
+	}
+
+	private function get_owner_photo() {
+		return $this->owner_photo;
+	}
+
+	private function get_owner_name() {
+		return $this->owner_name;
+	}
+
+	private function is_visiting() {
+		return $this->visiting;
+	}
+
+
+
+
+}
+
diff --git a/Zotlabs/Lib/ThreadStream.php b/Zotlabs/Lib/ThreadStream.php
new file mode 100644
index 000000000..2bcf167e9
--- /dev/null
+++ b/Zotlabs/Lib/ThreadStream.php
@@ -0,0 +1,220 @@
+<?php /** @file */
+
+namespace Zotlabs\Lib;
+
+require_once('boot.php');
+require_once('include/text.php');
+require_once('include/items.php');
+
+/**
+ * A list of threads
+ *
+ */
+
+class ThreadStream {
+
+	private $threads = array();
+	private $mode = null;
+	private $observer = null;
+	private $writable = false;
+	private $commentable = false;
+	private $profile_owner = 0;
+	private $preview = false;
+	private $prepared_item = '';
+	private $cipher = 'aes256';
+
+	// $prepared_item is for use by alternate conversation structures such as photos
+	// wherein we've already prepared a top level item which doesn't look anything like
+	// a normal "post" item
+
+	public function __construct($mode, $preview, $prepared_item = '') {
+		$this->set_mode($mode);
+		$this->preview = $preview;
+		$this->prepared_item = $prepared_item;
+		$c = ((local_channel()) ? get_pconfig(local_channel(),'system','default_cipher') : '');
+		if($c)
+			$this->cipher = $c;
+	}
+
+	/**
+	 * Set the mode we'll be displayed on
+	 */
+	private function set_mode($mode) {
+		if($this->get_mode() == $mode)
+			return;
+
+		$this->observer = \App::get_observer();
+		$ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : '');
+
+		switch($mode) {
+			case 'network':
+				$this->profile_owner = local_channel();
+				$this->writable = true;
+				break;
+			case 'channel':
+				$this->profile_owner = \App::$profile['profile_uid'];
+				$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
+				break;
+			case 'display':
+				// in this mode we set profile_owner after initialisation (from conversation()) and then 
+				// pull some trickery which allows us to re-invoke this function afterward
+				// it's an ugly hack so FIXME
+				$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
+				break;
+			case 'page':
+				$this->profile_owner = \App::$profile['uid'];
+				$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
+				break;
+			default:
+				logger('[ERROR] Conversation::set_mode : Unhandled mode ('. $mode .').', LOGGER_DEBUG);
+				return false;
+				break;
+		}
+		$this->mode = $mode;
+	}
+
+	/**
+	 * Get mode
+	 */
+	public function get_mode() {
+		return $this->mode;
+	}
+
+	/**
+	 * Check if page is writable
+	 */
+	public function is_writable() {
+		return $this->writable;
+	}
+
+	public function is_commentable() {
+		return $this->commentable;
+	}
+
+	/**
+	 * Check if page is a preview
+	 */
+	public function is_preview() {
+		return $this->preview;
+	}
+
+	/**
+	 * Get profile owner
+	 */
+	public function get_profile_owner() {
+		return $this->profile_owner;
+	}
+
+	public function set_profile_owner($uid) {
+		$this->profile_owner = $uid;
+		$mode = $this->get_mode();
+		$this->mode = null;
+		$this->set_mode($mode);
+	}
+
+	public function get_observer() {
+		return $this->observer;
+	}
+
+	public function get_cipher() {
+		return $this->cipher;
+	}
+
+
+	/**
+	 * Add a thread to the conversation
+	 *
+	 * Returns:
+	 *      _ The inserted item on success
+	 *      _ false on failure
+	 */
+	public function add_thread($item) {
+		$item_id = $item->get_id();
+		if(!$item_id) {
+			logger('Item has no ID!!', LOGGER_DEBUG, LOG_ERR);
+			return false;
+		}
+		if($this->get_thread($item->get_id())) {
+			logger('Thread already exists ('. $item->get_id() .').', LOGGER_DEBUG, LOG_WARNING);
+			return false;
+		}
+
+		/*
+		 * Only add things that will be displayed
+		 */
+
+		
+		if(($item->get_data_value('id') != $item->get_data_value('parent')) && (activity_match($item->get_data_value('verb'),ACTIVITY_LIKE) || activity_match($item->get_data_value('verb'),ACTIVITY_DISLIKE))) {
+			return false;
+		}
+
+		$item->set_commentable(false);
+		$ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : '');
+		
+		if(! comments_are_now_closed($item->get_data())) {
+			if(($item->get_data_value('author_xchan') === $ob_hash) || ($item->get_data_value('owner_xchan') === $ob_hash))
+				$item->set_commentable(true);
+
+			if(intval($item->get_data_value('item_nocomment'))) {
+				$item->set_commentable(false);
+			}
+			elseif(($this->observer) && (! $item->is_commentable())) {
+				if((array_key_exists('owner',$item->data)) && intval($item->data['owner']['abook_self']))
+					$item->set_commentable(perm_is_allowed($this->profile_owner,$this->observer['xchan_hash'],'post_comments'));
+				else
+					$item->set_commentable(can_comment_on_post($this->observer['xchan_hash'],$item->data));
+			}
+		}
+		require_once('include/identity.php');
+
+		$item->set_conversation($this);
+		$this->threads[] = $item;
+		return end($this->threads);
+	}
+
+	/**
+	 * Get data in a form usable by a conversation template
+	 *
+	 * We should find a way to avoid using those arguments (at least most of them)
+	 *
+	 * Returns:
+	 *      _ The data requested on success
+	 *      _ false on failure
+	 */
+	public function get_template_data($conv_responses) {
+		$result = array();
+
+		foreach($this->threads as $item) {
+
+			if(($item->get_data_value('id') == $item->get_data_value('parent')) && $this->prepared_item) {
+				$item_data = $this->prepared_item;
+			}
+			else {
+				$item_data = $item->get_template_data($conv_responses);
+			}
+			if(!$item_data) {
+				logger('Failed to get item template data ('. $item->get_id() .').', LOGGER_DEBUG, LOG_ERR);
+				return false;
+			}
+			$result[] = $item_data;
+		}
+
+		return $result;
+	}
+
+	/**
+	 * Get a thread based on its item id
+	 *
+	 * Returns:
+	 *      _ The found item on success
+	 *      _ false on failure
+	 */
+	private function get_thread($id) {
+		foreach($this->threads as $item) {
+			if($item->get_id() == $id)
+				return $item;
+		}
+
+		return false;
+	}
+}