Hide assignee metadata when no visible assigned tickets exist

tests/Feature/Api/AssignedTicketsApiTest.php

@@ -77,4 +77,37 @@ class AssignedTicketsApiTest extends TestCase
             ->assertJsonCount(1, 'data.1.tickets')
             ->assertJsonCount(2, 'data');
     }
+
+    public function test_assignee_metadata_is_hidden_when_no_visible_assigned_tickets_exist(): void
+    {
+        $viewer = User::factory()->create();
+        $assignee = User::factory()->create([
+            'name' => 'Hidden User',
+        ]);
+
+        $visibleProject = Project::factory()->create([
+            'key' => 'VIS',
+            'name' => 'Visible project',
+        ]);
+        $hiddenProject = Project::factory()->create([
+            'key' => 'HID',
+            'name' => 'Hidden project',
+        ]);
+
+        $this->syncProjectPermissions($visibleProject, $viewer, ['view']);
+
+        Ticket::factory()->create([
+            'assignee_user_id' => $assignee->id,
+            'project_id' => $hiddenProject->id,
+            'sequence_number' => 1,
+            'ticket_key' => 'HID-1',
+            'title' => 'Hidden ticket',
+        ]);
+
+        $this->withApplicationKey($viewer)
+            ->getJson(route('api.users.assigned-tickets', $assignee))
+            ->assertOk()
+            ->assertJsonPath('data', [])
+            ->assertJsonPath('meta.assignee', null);
+    }
 }

tests/Feature/Api/OpenApiDocumentationTest.php

@@ -83,5 +83,13 @@ class OpenApiDocumentationTest extends TestCase
         $this->assertArrayHasKey('UserGitConnectionRequest', $document['components']['schemas']);
         $this->assertArrayHasKey('AssignedTicketsPayloadEnvelope', $document['components']['schemas']);
         $this->assertArrayHasKey('AssignedTicketsProjectGroup', $document['components']['schemas']);
+
+        $assigneeSchema = $document['components']['schemas']['AssignedTicketsPayloadEnvelope']['properties']['meta']['properties']['assignee'] ?? null;
+
+        $this->assertIsArray($assigneeSchema);
+        $this->assertSame([
+            ['$ref' => '#/components/schemas/User'],
+            ['type' => 'null'],
+        ], $assigneeSchema['anyOf'] ?? null);
     }
 }