first commit

common/Comments/LoadChildComments.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Common\Comments;
+
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Collection;
+
+class LoadChildComments
+{
+    public function execute(
+        Model $commentable,
+        Collection $rootComments,
+    ): Collection {
+        $paths = $rootComments
+            ->map(function (Comment $comment) {
+                $path = $comment->getRawOriginal('path');
+                return "LIKE '$path%'";
+            })
+            ->implode(' OR path ');
+
+        $childComments = app(Comment::class)
+            ->with(['user' => fn($builder) => $builder->compact()])
+            ->where('commentable_id', $commentable->id)
+            ->where('commentable_type', $commentable->getMorphClass())
+            ->childrenOnly()
+            ->where(fn(Builder $builder) => $builder->whereRaw("path $paths"))
+            ->orderBy('path', 'asc')
+            ->orderBy('created_at', 'desc')
+            ->orderByWeightedScore()
+            ->limit(100)
+            ->get();
+
+        $childComments->each(function ($child) use ($rootComments) {
+            $index = $rootComments->search(
+                fn($parent) => $parent['id'] === $child['parent_id'],
+            );
+            $rootComments->splice($index + 1, 0, [$child]);
+        });
+
+        return $rootComments;
+    }
+}