[Init] Initial commit - NetMesh terminal manager

application/state/sftp/externalUploadRuntime.ts

@@ -0,0 +1,54 @@
+import type { UploadController } from "../../../lib/uploadService";
+
+// External folder uploads start in a React panel, but their work is not owned
+// by that panel. Keep the controller registry at module scope so closing the
+// terminal only removes the view; the global transfer runtime can still cancel
+// the upload, and the upload's own finally block releases these entries.
+const controllersByTaskId = new Map<string, UploadController>();
+const taskIdsByController = new Map<UploadController, Set<string>>();
+
+export function registerExternalUploadController(
+  taskId: string,
+  controller: UploadController,
+): void {
+  if (!taskId) return;
+  const previous = controllersByTaskId.get(taskId);
+  if (previous && previous !== controller) {
+    const previousIds = taskIdsByController.get(previous);
+    previousIds?.delete(taskId);
+    if (previousIds?.size === 0) taskIdsByController.delete(previous);
+  }
+  controllersByTaskId.set(taskId, controller);
+  const taskIds = taskIdsByController.get(controller) ?? new Set<string>();
+  taskIds.add(taskId);
+  taskIdsByController.set(controller, taskIds);
+}
+
+export function unregisterExternalUploadController(controller: UploadController): void {
+  const taskIds = taskIdsByController.get(controller);
+  if (!taskIds) return;
+  for (const taskId of taskIds) {
+    if (controllersByTaskId.get(taskId) === controller) {
+      controllersByTaskId.delete(taskId);
+    }
+  }
+  taskIdsByController.delete(controller);
+}
+
+export function getExternalUploadController(taskId: string): UploadController | undefined {
+  return controllersByTaskId.get(taskId);
+}
+
+export async function cancelExternalUploadRuntime(taskId?: string): Promise<boolean> {
+  const controllers = taskId
+    ? [controllersByTaskId.get(taskId)].filter((value): value is UploadController => !!value)
+    : [...taskIdsByController.keys()];
+  if (controllers.length === 0) return false;
+  await Promise.all([...new Set(controllers)].map((controller) => controller.cancel()));
+  return true;
+}
+
+export function resetExternalUploadRuntimeForTests(): void {
+  controllersByTaskId.clear();
+  taskIdsByController.clear();
+}