feat(auth): implement authorization checks for application management

app/Policies/ApplicationPreviewPolicy.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace App\Policies;
+
+use App\Models\ApplicationPreview;
+use App\Models\User;
+use Illuminate\Auth\Access\Response;
+
+class ApplicationPreviewPolicy
+{
+    /**
+     * Determine whether the user can view any models.
+     */
+    public function viewAny(User $user): bool
+    {
+        return true;
+    }
+
+    /**
+     * Determine whether the user can view the model.
+     */
+    public function view(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+
+    /**
+     * Determine whether the user can create models.
+     */
+    public function create(User $user): bool
+    {
+        return $user->isAdmin();
+    }
+
+    /**
+     * Determine whether the user can update the model.
+     */
+    public function update(User $user, ApplicationPreview $applicationPreview): Response
+    {
+        if ($user->isAdmin()) {
+            return Response::allow();
+        }
+
+        return Response::deny('As a member, you cannot update this preview.<br/><br/>You need at least admin or owner permissions.');
+    }
+
+    /**
+     * Determine whether the user can delete the model.
+     */
+    public function delete(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->isAdmin() && $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+
+    /**
+     * Determine whether the user can restore the model.
+     */
+    public function restore(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->isAdmin() && $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+
+    /**
+     * Determine whether the user can permanently delete the model.
+     */
+    public function forceDelete(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->isAdmin() && $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+
+    /**
+     * Determine whether the user can deploy the preview.
+     */
+    public function deploy(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+
+    /**
+     * Determine whether the user can manage preview deployments.
+     */
+    public function manageDeployments(User $user, ApplicationPreview $applicationPreview): bool
+    {
+        return $user->isAdmin() && $user->teams()->get()->firstWhere('id', $applicationPreview->application->team()->first()->id) !== null;
+    }
+}