New "UserItem" class, new notification type field

src/Model/UserItem.php

@@ -0,0 +1,85 @@
+<?php
+
+/**
+ * @file src/Model/UserItem.php
+ */
+
+namespace Friendica\Model;
+
+use Friendica\Database\DBA;
+
+class UserItem
+{
+	/**
+	 * Checks an item for notifications and sets the "notification-type" field
+	 *
+	 * @param array $item The message array that is checked for notifications
+	 * @param int   $uid  User ID
+	 */
+	public static function setNotification($item, $uid)
+	{
+	}
+
+	private static function checkShared($item, $uid)
+	{
+		if ($item['gravity'] != GRAVITY_PARENT) {
+			return false;
+		}
+
+		// Send a notification for every new post?
+		// Either the contact had posted something directly
+		if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
+			return true;
+		}
+
+		// Or the contact is a mentioned forum
+		$tags = DBA::select('term', ['url'], ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => TERM_MENTION, 'uid' => $uid]);
+		while ($tag = DBA::fetch($tags)) {
+			$condition = ['nurl' => Strings::normaliseLink($tag["url"]), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
+			if (DBA::exists('contact', $condition)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	// Is the user mentioned in this post?
+	private static function checkTagged($item, $uid)
+	{
+		if ($item["mention"]) {
+			return true;
+		}
+
+		foreach ($profiles AS $profile) {
+			if (strpos($item["tag"], "=".$profile."]") || strpos($item["body"], "=".$profile."]"))
+				return true;
+		}
+
+		if ($defaulttype == NOTIFY_TAGSELF) {
+			return true;
+		}
+
+		return false;
+	}
+
+	private static function checkCommented($item, $uid)
+	{
+		// Is it a post that the user had started?
+		$fields = ['ignored', 'mention'];
+		$thread = Item::selectFirstThreadForUser($uid, $fields, ['iid' => $item["parent"], 'deleted' => false]);
+
+		if ($thread['mention'] && !$thread['ignored']) {
+			return true;
+		}
+
+		// And now we check for participation of one of our contacts in the thread
+		$condition = ['parent' => $item["parent"], 'author-id' => $contacts, 'deleted' => false];
+
+		if (!$thread['ignored'] && Item::exists($condition)) {
+			return true;
+		}
+
+		return false;
+	}
+}