From 0b21ac3dd79d2bf39341a4f0ff3566def8282eae Mon Sep 17 00:00:00 2001
From: "matthew.gregg" <matthew.gregg@gmail.com>
Date: Sun, 22 Jun 2008 23:08:37 -0400
Subject: [PATCH] First pass at replies support http://laconi.ca/PITS/00080

Doesn't handle a reply to a user that has never updated.

darcs-hash:20080623030837-982e4-532ccd8899fd8be00575f8840da0defb44cd56f8.gz
---
 actions/newnotice.php |   8 +++-
 actions/replies.php   | 103 ++++++++++++++++++++++++++++++++++++++++++
 classes/User.php      |  14 ++++++
 db/laconica.sql       |  13 ++++++
 lib/stream.php        |  42 +++++++++++++++++
 lib/util.php          |  32 +++++++++++++
 6 files changed, 211 insertions(+), 1 deletion(-)
 create mode 100644 actions/replies.php

diff --git a/actions/newnotice.php b/actions/newnotice.php
index 64fe2494b8..9aaf4b4d3b 100644
--- a/actions/newnotice.php
+++ b/actions/newnotice.php
@@ -36,6 +36,12 @@ class NewnoticeAction extends Action {
 
 	function save_new_notice() {
 
+                #remember the current notice
+                $current_notice = DB_DataObject::factory('notice');
+                $current_notice->limit(1);
+                $current_notice->orderBy('created DESC');
+                $current_notice->find(1);
+
 		$user = common_current_user();
 		assert($user); # XXX: maybe an error instead...
 		$notice = DB_DataObject::factory('notice');
@@ -67,7 +73,7 @@ class NewnoticeAction extends Action {
 			common_server_error(_t('Problem saving notice.'));
 			return;
 		}
-
+		
 		common_broadcast_notice($notice);
 		$returnto = $this->trimmed('returnto');
 		if ($returnto) {
diff --git a/actions/replies.php b/actions/replies.php
new file mode 100644
index 0000000000..14f19cd765
--- /dev/null
+++ b/actions/replies.php
@@ -0,0 +1,103 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+require_once(INSTALLDIR.'/actions/showstream.php');
+
+class RepliesAction extends StreamAction {
+
+	function handle($args) {
+
+		parent::handle($args);
+
+		$nickname = common_canonical_nickname($this->arg('nickname'));
+		$user = User::staticGet('nickname', $nickname);
+
+		if (!$user) {
+			$this->no_such_user();
+			return;
+		}
+
+		$profile = $user->getProfile();
+
+		if (!$profile) {
+			common_server_error(_t('User record exists without profile.'));
+			return;
+		}
+
+		# Looks like we're good; show the header
+
+		common_show_header($profile->nickname . _t(" and friends"),
+						   array($this, 'show_header'), $user,
+						   array($this, 'show_top'));
+		
+		$this->show_replies($profile);
+		
+		common_show_footer();
+	}
+	
+	function show_header($user) {
+		common_element('link', array('rel' => 'alternate',
+									 'href' => common_local_url('allrss', array('nickname' =>
+																			   $user->nickname)),
+									 'type' => 'application/rss+xml',
+									 'title' => _t('Feed for friends of ') . $user->nickname));
+	}
+
+	function show_top($user) {
+		$cur = common_current_user();
+		
+		$this->views_menu();
+	}
+	
+	function show_replies($profile) {
+
+		$reply = DB_DataObject::factory('reply');
+
+                $reply->user_id = $profile->id;
+
+		$reply->orderBy('created DESC');
+
+		$page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
+
+		$reply->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
+
+		$cnt = $reply->find();
+
+		if ($cnt > 0) {
+			common_element_start('ul', array('id' => 'replies'));
+			for ($i = 0; $i < min($cnt, REPLIES_PER_PAGE); $i++) {
+				if ($reply->fetch()) {
+                                        $notice = DB_DataObject::factory('notice');
+                                        $notice->id = $reply->notice_id;
+                                        $notice->find(1);
+					$this->show_reply($notice, $reply->replied_id);
+				} else {
+					// shouldn't happen!
+					break;
+				}
+			}
+			common_element_end('ul');
+		}
+		
+		common_pagination($page > 1, $cnt > REPLIES_PER_PAGE,
+						  $page, 'all', array('nickname' => $profile->nickname));
+	}
+}
diff --git a/classes/User.php b/classes/User.php
index 370dad82f7..b22e486f38 100644
--- a/classes/User.php
+++ b/classes/User.php
@@ -94,4 +94,18 @@ class User extends DB_DataObject
 		$merged = array_merge($blacklist, common_config('nickname', 'blacklist'));
 		return !in_array($nickname, $merged);
 	}
+
+        function getCurrentNotice() {
+                $notice = DB_DataObject::factory('notice');
+                $profile = $this->getProfile();
+                $notice->profile_id = $profile->id;
+                $notice->limit(1);
+                $notice->orderBy('created DESC');
+                if ($notice->find()) {
+                        $notice->fetch();
+                        return $notice;
+                }
+                return NULL;
+        }
+
 }
diff --git a/db/laconica.sql b/db/laconica.sql
index 6db9b6cf6b..af94e3b61b 100644
--- a/db/laconica.sql
+++ b/db/laconica.sql
@@ -92,6 +92,19 @@ create table notice (
     index notice_profile_id_idx (profile_id)
 ) ENGINE=InnoDB;
 
+create table reply (
+    id integer auto_increment primary key comment 'unique identifier',
+    notice_id integer comment 'foreign key to notice table',
+    user_id integer comment 'foreign key to user table',
+    replied_id integer comment 'foreign key to notice table',
+    created datetime not null comment 'date this reply was created',
+
+    index notice_id_idx (notice_id),
+    index user_id_idx (user_id),
+    index replied_id_idx (replied_id)
+
+) ENGINE=InnoDB;
+
 /* tables for OAuth */
 
 create table consumer (
diff --git a/lib/stream.php b/lib/stream.php
index a37e4dfa32..6bba0eace3 100644
--- a/lib/stream.php
+++ b/lib/stream.php
@@ -20,6 +20,7 @@
 if (!defined('LACONICA')) { exit(1); }
 
 define('NOTICES_PER_PAGE', 20);
+define('REPLIES_PER_PAGE', 20);
 
 class StreamAction extends Action {
 
@@ -44,6 +45,11 @@ class StreamAction extends Action {
 						 _t('Personal'),
 						 (($user && $user->fullname) ? $user->fullname : $nickname) . _t(' and friends'),
 						 $action == 'all');
+		common_menu_item(common_local_url('replies', array('nickname' =>
+															  $nickname)),
+						 _t('Replies'),  
+						 ($user && $user->fullname) ? $user->fullname : $nickname,
+						 $action == 'replies');
 		common_menu_item(common_local_url('showstream', array('nickname' =>
 															  $nickname)),
 						 _t('Profile'),
@@ -84,4 +90,40 @@ class StreamAction extends Action {
 		common_element_end('p');
 		common_element_end('li');
 	}
+
+	function show_reply($notice, $replied_id) {
+		global $config;
+		$profile = $notice->getProfile();
+		# XXX: RDFa
+		common_element_start('li', array('class' => 'notice_single',
+										  'id' => 'notice-' . $notice->id));
+		$avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
+		common_element_start('a', array('href' => $profile->profileurl));
+		common_element('img', array('src' => ($avatar) ? $avatar->url : common_default_avatar(AVATAR_STREAM_SIZE),
+									'class' => 'avatar stream',
+									'width' => AVATAR_STREAM_SIZE,
+									'height' => AVATAR_STREAM_SIZE,
+									'alt' =>
+									($profile->fullname) ? $profile->fullname :
+									$profile->nickname));
+		common_element_end('a');
+		common_element('a', array('href' => $profile->profileurl,
+								  'class' => 'nickname'),
+					   $profile->nickname);
+		# FIXME: URL, image, video, audio
+		common_element_start('p', array('class' => 'content'));
+		common_raw(common_render_content($notice->content, $notice));
+		common_element_end('p');
+		$replyurl = common_local_url('shownotice', array('notice' => $replied_id));
+		$noticeurl = common_local_url('shownotice', array('notice' => $notice->id));
+		common_element_start('p', 'time');
+		common_element('a', array('class' => 'notice',
+								  'href' => $noticeurl),
+					   common_date_string($notice->created));
+		common_element('a', array('class' => 'notice',
+								  'href' => $replyurl),
+					   " in reply to ".$profile->nickname );
+		common_element_end('p');
+		common_element_end('li');
+	}
 }
diff --git a/lib/util.php b/lib/util.php
index 4b781c0a89..0aa1bd53ec 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -808,6 +808,38 @@ function common_redirect($url, $code=307) {
 	common_end_xml();
 }
 
+function common_save_replies($notice) {
+        # extract all @messages
+        preg_match_all('/(?:^|\s)@([a-z0-9]{1,64})/', $notice->content, $match);
+        $current_user = common_current_user();
+        $sender = $current_user->getProfile();
+        #store replied only for first @ (what user/notice what the reply directed, we assume first @ is it)
+        $reply_for = User::staticGet('nickname', $match[1][0]);
+        for ($i=0; $i<count($match[1]); $i++) {
+                $nickname = $match[1][$i];
+                #don't reply to myself
+                if ($sender->nickname == $nickname) {
+                    continue;
+                }
+                $reply = DB_DataObject::factory('reply');
+                $reply->notice_id = $notice->id;
+                $recipient_user = User::staticGet('nickname', $nickname);
+                #if recipient doesn't exist, skip
+                if (!$recipient_user) {
+                      continue;
+                }
+                $reply->user_id = $recipient_user->id;
+                $reply->created = DB_DataObject_Cast::dateTime();
+                $recipient_notice = $reply_for->getCurrentNotice();
+                $reply->replied_id = $recipient_notice->id;
+                $id = $reply->insert();
+                if (!$id) {
+                    common_server_error(_t('Problem saving reply.'));
+                    return;
+                }
+        }
+}
+
 function common_broadcast_notice($notice, $remote=false) {
 	if (common_config('queue', 'enabled')) {
 		# Do it later!