feat: implement API endpoint for getting all internships for admins

backend/app/Http/Controllers/InternshipController.php

@@ -10,6 +10,39 @@ use Illuminate\Http\Request;
 
 class InternshipController extends Controller
 {
+    public function all()
+    {
+        $user = auth()->user();
+
+        if ($user->role !== 'ADMIN') {
+            abort(403, 'Unauthorized');
+        }
+
+        $internships = Internship::all()->makeHidden(['created_at', 'updated_at']);
+
+        $internships->each(function ($internship) {
+            $internship->user = User::find($internship->user_id)->makeHidden(['created_at', 'updated_at', 'email_verified_at']);
+            unset($internship->user_id);
+        });
+        
+        $internships->each(function ($internship) {
+            $internship->company = Company::find($internship->company_id)->makeHidden(['created_at', 'updated_at']);
+            unset($internship->company_id);
+        });
+
+        $internships->each(function ($internship) {
+            $internship->contact = User::find($internship->company->contact)->makeHidden(['created_at', 'updated_at', 'email_verified_at']);
+            unset($internship->company->contact);
+        });
+
+        $internships->each(function ($internship) {
+            $internship->status = InternshipStatus::whereColumn('internship_id', '=', $internship->id)->get()->first()->makeHidden(['created_at', 'updated_at', 'id']);
+            $internship->status->modified_by = User::find($internship->status->modified_by)->makeHidden(['created_at', 'updated_at', 'email_verified_at']);
+        });
+
+        return response()->json($internships);
+    }
+
     public function all_student()
     {
         $internships = Internship::where('user_id', auth()->id())->get()->makeHidden(['created_at', 'updated_at']);