From e9f7ea0afa14e6afcf5f5e61d39b3996a26eb310 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Wed, 17 Jan 2024 20:25:49 +0000
Subject: [PATCH] New search keyword "language"

---
 doc/Channels.md               |  1 +
 src/Model/Post/Engagement.php | 24 ++++++++++++++----------
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/doc/Channels.md b/doc/Channels.md
index de3f6718d8..5c206c7896 100644
--- a/doc/Channels.md
+++ b/doc/Channels.md
@@ -80,6 +80,7 @@ Additionally to the search for content, there are additional keywords that can b
     * visibility:public
     * visibility:unlisted
     * visibility:private
+* language - Use "language:code" to search for posts with the given language in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format. 
 
 Remember that you can combine these kerywords.
 So for example you can create a channel with all posts that talk about the Fediverse - that aren't posted in the Fediverse with the search terms: "fediverse -network:apub -network:dfrn"
\ No newline at end of file
diff --git a/src/Model/Post/Engagement.php b/src/Model/Post/Engagement.php
index 5047d71dd2..1d1fa11124 100644
--- a/src/Model/Post/Engagement.php
+++ b/src/Model/Post/Engagement.php
@@ -24,7 +24,6 @@ namespace Friendica\Model\Post;
 use Friendica\Content\Text\BBCode;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
-use Friendica\Database\Database;
 use Friendica\Database\DBA;
 use Friendica\DI;
 use Friendica\Model\Contact;
@@ -39,7 +38,7 @@ use Friendica\Util\DateTimeFormat;
 
 class Engagement
 {
-	const KEYWORDS = ['source', 'server', 'from', 'to', 'group', 'tag', 'network', 'platform', 'visibility'];
+	const KEYWORDS = ['source', 'server', 'from', 'to', 'group', 'tag', 'network', 'platform', 'visibility', 'language'];
 
 	/**
 	 * Store engagement data from an item array
@@ -204,26 +203,26 @@ class Engagement
 
 		switch ($item['private']) {
 			case Item::PUBLIC:
-				$body .= ' visibility:public';
+				$body .= ' visibility_public';
 				break;
 			case Item::UNLISTED:
-				$body .= ' visibility:unlisted';
+				$body .= ' visibility_unlisted';
 				break;
 			case Item::PRIVATE:
-				$body .= ' visibility:private';
+				$body .= ' visibility_private';
 				break;
 		}
 
 		if (in_array(Contact::TYPE_COMMUNITY, [$item['author-contact-type'], $item['owner-contact-type']])) {
-			$body .= ' source:group';
+			$body .= ' source_group';
 		} elseif ($item['author-contact-type'] == Contact::TYPE_PERSON) {
-			$body .= ' source:person';
+			$body .= ' source_person';
 		} elseif ($item['author-contact-type'] == Contact::TYPE_NEWS) {
-			$body .= ' source:service';
+			$body .= ' source_service';
 		} elseif ($item['author-contact-type'] == Contact::TYPE_ORGANISATION) {
-			$body .= ' source:organization';
+			$body .= ' source_organization';
 		} elseif ($item['author-contact-type'] == Contact::TYPE_RELAY) {
-			$body .= ' source:application';
+			$body .= ' source_application';
 		}
 
 		if ($item['author-contact-type'] == Contact::TYPE_COMMUNITY) {
@@ -257,6 +256,11 @@ class Engagement
 			$body .= ' tag_' . $tag;
 		}
 
+		if (!empty($item['language'])) {
+			$languages = json_decode($item['language'], true);
+			$body .= ' language_' . array_key_first($languages);
+		}
+
 		$body .= ' ' . $item['title'] . ' ' . $item['content-warning'] . ' ' . $item['body'];
 
 		return BBCode::toSearchText($body, $item['uri-id']);