From ca9945a4be763757f53907320c54b46cc64193b1 Mon Sep 17 00:00:00 2001
From: Hugo Sales <hugo@hsal.es>
Date: Fri, 1 Apr 2022 00:11:01 +0100
Subject: [PATCH] [ENTITY][Actor][COMPONENT][Tag] Add
 `Actor->getNoteTags(?string $note_type)` which gets a cached list of NoteTags
 for notes of type $note_type for the actor

---
 components/Tag/Tag.php | 31 ++++++++++++++++++++++++++++++-
 src/Entity/Actor.php   | 12 +++++++++++-
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/components/Tag/Tag.php b/components/Tag/Tag.php
index 81c60d0ea0..f6fe16788d 100644
--- a/components/Tag/Tag.php
+++ b/components/Tag/Tag.php
@@ -72,7 +72,7 @@ class Tag extends Component
         if (!self::validate($tag)) {
             return null; // Ignore invalid tag candidates
         }
-        $canonical_tag = self::canonicalTag($tag, \is_null($lang_id) ? null : Language::getById($lang_id)->getLocale());
+        $canonical_tag        = self::canonicalTag($tag, \is_null($lang_id) ? null : Language::getById($lang_id)->getLocale());
         DB::persist($note_tag = NoteTag::create([
             'tag'           => $tag,
             'canonical'     => $canonical_tag,
@@ -86,6 +86,35 @@ class Tag extends Component
         return $note_tag;
     }
 
+    /**
+     * @return NoteTag[]
+     */
+    public static function getNoteTags(int $actor_id, ?string $note_type): array
+    {
+        $query = <<<'EOF'
+            select nt from \App\Entity\Note n
+            join \Component\Tag\Entity\NoteTag nt with n.id = nt.note_id
+            where n.actor_id = :id
+            EOF;
+        if (\is_null($note_type)) {
+            return Cache::getList(
+                Actor::cacheKeys($actor_id, 'any')['note-tags'],
+                fn () => DB::dql(
+                    $query,
+                    ['id' => $actor_id],
+                ),
+            );
+        } else {
+            return Cache::getList(
+                Actor::cacheKeys($actor_id, $note_type)['note-tags'],
+                fn () => DB::dql(
+                    $query . ' and n.type = :type',
+                    ['id' => $actor_id, 'type' => $note_type],
+                ),
+            );
+        }
+    }
+
     /**
      * Process note by extracting any tags present
      */
diff --git a/src/Entity/Actor.php b/src/Entity/Actor.php
index d9580232f9..2d5707b388 100644
--- a/src/Entity/Actor.php
+++ b/src/Entity/Actor.php
@@ -42,6 +42,7 @@ use Component\Group\Entity\LocalGroup;
 use Component\Language\Entity\ActorLanguage;
 use Component\Language\Entity\Language;
 use Component\Subscription\Entity\ActorSubscription;
+use Component\Tag\Tag;
 use Functional as F;
 
 /**
@@ -263,7 +264,8 @@ class Actor extends Entity
             'id' => "actor-id-{$actor_id}",
             'nickname' => "actor-nickname-id-{$actor_id}",
             'fullname' => "actor-fullname-id-{$actor_id}",
-            'self-tags' =>  "actor-self-tags-{$actor_id}",
+            'self-tags' => "actor-self-tags-{$actor_id}",
+            'note-tags' => "actor-note-tags-{$actor_id}-{$other}", // $other is note type
             'circles' => "actor-circles-{$actor_id}",
             'subscribers' => "subscribers-{$actor_id}",
             'subscribed' => "subscribed-{$actor_id}",
@@ -347,6 +349,14 @@ class Actor extends Entity
         );
     }
 
+    /**
+     * @return NoteTag[]
+     */
+    public function getNoteTags(?string $note_type = null): array
+    {
+        return Tag::getNoteTags($this->getId(), $note_type);
+    }
+
     private function getSubCount(string $which, string $column): int
     {
         return Cache::get(