first

app/Services/Ppm/PpmScopeService.php

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+<?php
+
+namespace App\Services\Ppm;
+
+use App\Models\Application;
+use App\Models\Position;
+use App\Models\StaffAssignment;
+use App\Models\User;
+use Illuminate\Support\Collection;
+
+class PpmScopeService
+{
+    /**
+     * @return Collection<int, int>
+     */
+    public function assignedPusatIds(User $user): Collection
+    {
+        $ppmPosition = Position::query()->where('code', 'PPM')->first();
+
+        if ($ppmPosition === null) {
+            return collect();
+        }
+
+        return StaffAssignment::query()
+            ->where('user_id', $user->id)
+            ->where('position_id', $ppmPosition->id)
+            ->where('status', 'active')
+            ->whereNull('saluran_mengundi_id')
+            ->pluck('pusat_mengundi_id')
+            ->map(fn (mixed $id): int => (int) $id)
+            ->values();
+    }
+
+    public function canAccessApplication(User $user, Application $application): bool
+    {
+        if ($user->hasRole('Admin')) {
+            return true;
+        }
+
+        if (! $user->hasRole('PPM')) {
+            return false;
+        }
+
+        return $this->assignedPusatIds($user)->contains((int) $application->pusat_mengundi_id);
+    }
+}