first commit

app/Services/ProjectMemberService.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Project;
+
+class ProjectMemberService
+{
+    public static function getMembers(int $projectId): array
+    {
+        return Project::find($projectId, 'id')
+            ->where('id', $projectId)
+            ->with('users')
+            ->first()
+            ->only(['id', 'users']);
+    }
+
+    public static function syncMembers(int $projectId, array $users): array
+    {
+        return Project::findOrFail($projectId)->users()->sync($users);
+    }
+}