Wire admin studio SSR and search infrastructure

app/Services/Posts/PostFeedService.php

@@ -22,7 +22,10 @@ class PostFeedService
         ?int $viewerId,
         int $page = 1,
     ): array {
-        $baseQuery = Post::with($this->eagerLoads())
+        $baseQuery = $this->applyViewerSaveState(
+            Post::with($this->eagerLoads()),
+            $viewerId,
+        )
             ->where('user_id', $profileUser->id)
             ->visibleTo($viewerId);
 
@@ -80,6 +83,8 @@ class PostFeedService
             ->visibleTo($viewer->id)
             ->orderByDesc('created_at');
 
+        $query = $this->applyViewerSaveState($query, $viewer->id);
+
         if ($filter === 'shares')  $query->where('type', Post::TYPE_ARTWORK_SHARE);
         elseif ($filter === 'text')    $query->where('type', Post::TYPE_TEXT);
         elseif ($filter === 'uploads') $query->where('type', Post::TYPE_UPLOAD);
@@ -109,7 +114,10 @@ class PostFeedService
     ): array {
         $tag = mb_strtolower($tag);
 
-        $paginated = Post::with($this->eagerLoads())
+        $paginated = $this->applyViewerSaveState(
+            Post::with($this->eagerLoads()),
+            $viewerId,
+        )
             ->whereHas('hashtags', fn ($q) => $q->where('tag', $tag))
             ->visibleTo($viewerId)
             ->orderByDesc('created_at')
@@ -132,7 +140,10 @@ class PostFeedService
 
     public function getSavedFeed(User $viewer, int $page = 1): array
     {
-        $paginated = Post::with($this->eagerLoads())
+        $paginated = $this->applyViewerSaveState(
+            Post::with($this->eagerLoads()),
+            $viewer->id,
+        )
             ->whereHas('saves', fn ($q) => $q->where('user_id', $viewer->id))
             ->where('status', Post::STATUS_PUBLISHED)
             ->orderByDesc('created_at')
@@ -174,6 +185,17 @@ class PostFeedService
         return $this->eagerLoads();
     }
 
+    private function applyViewerSaveState($query, ?int $viewerId)
+    {
+        if (! $viewerId) {
+            return $query;
+        }
+
+        return $query->withExists([
+            'saves as viewer_saved' => fn ($saveQuery) => $saveQuery->where('user_id', $viewerId),
+        ]);
+    }
+
     /**
      * Penalize runs of 5+ posts from the same author by deferring them to the end.
      */
@@ -223,8 +245,9 @@ class PostFeedService
         $viewerLiked = $viewerSaved = false;
         if ($viewerId) {
             $viewerLiked = $post->reactions->where('user_id', $viewerId)->where('reaction', 'like')->isNotEmpty();
-            // saves are lazy-loaded only when needed; check if relation is loaded
-            if ($post->relationLoaded('saves')) {
+            if (array_key_exists('viewer_saved', $post->getAttributes())) {
+                $viewerSaved = (bool) $post->getAttribute('viewer_saved');
+            } elseif ($post->relationLoaded('saves')) {
                 $viewerSaved = $post->saves->where('user_id', $viewerId)->isNotEmpty();
             } else {
                 $viewerSaved = $post->saves()->where('user_id', $viewerId)->exists();