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

1 files changed, 220 insertions, 0 deletions

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;
+	}
+}