clan-app: Moved thread handling up to the ApiBridge

pkgs/clan-app/clan_app/api/api_bridge.py

@@ -1,10 +1,13 @@
 import logging
+import threading
 from abc import ABC, abstractmethod
 from contextlib import ExitStack
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import TYPE_CHECKING, Any
 
 from clan_lib.api import ApiResponse
+from clan_lib.api.tasks import WebThread
+from clan_lib.async_run import set_should_cancel
 
 if TYPE_CHECKING:
     from .middleware import Middleware
@@ -32,6 +35,7 @@ class ApiBridge(ABC):
     """Generic interface for API bridges that can handle method calls from different sources."""
 
     middleware_chain: tuple["Middleware", ...]
+    threads: dict[str, WebThread] = field(default_factory=dict)
 
     @abstractmethod
     def send_api_response(self, response: BackendResponse) -> None:
@@ -87,3 +91,50 @@ class ApiBridge(ABC):
         )
 
         self.send_api_response(response)
+
+    def process_request_in_thread(
+        self,
+        request: BackendRequest,
+        *,
+        thread_name: str = "ApiBridgeThread",
+        wait_for_completion: bool = False,
+        timeout: float = 60.0,
+    ) -> None:
+        """Process an API request in a separate thread with cancellation support.
+
+        Args:
+            request: The API request to process
+            thread_name: Name for the thread (for debugging)
+            wait_for_completion: Whether to wait for the thread to complete
+            timeout: Timeout in seconds when waiting for completion
+        """
+        op_key = request.op_key or "unknown"
+
+        def thread_task(stop_event: threading.Event) -> None:
+            set_should_cancel(lambda: stop_event.is_set())
+            try:
+                log.debug(
+                    f"Processing {request.method_name} with args {request.args} "
+                    f"and header {request.header} in thread {thread_name}"
+                )
+                self.process_request(request)
+            finally:
+                self.threads.pop(op_key, None)
+
+        stop_event = threading.Event()
+        thread = threading.Thread(
+            target=thread_task, args=(stop_event,), name=thread_name
+        )
+        thread.start()
+        self.threads[op_key] = WebThread(thread=thread, stop_event=stop_event)
+
+        if wait_for_completion:
+            # Wait for the thread to complete (this blocks until response is sent)
+            thread.join(timeout=timeout)
+
+            # Handle timeout
+            if thread.is_alive():
+                stop_event.set()  # Cancel the thread
+                self.send_api_error_response(
+                    op_key, "Request timeout", ["api_bridge", request.method_name]
+                )

pkgs/clan-app/clan_app/api/file_gtk.py

@@ -28,7 +28,7 @@ def open_file(
     GLib.idle_add(gtk_open_file, file_request, op_key)
 
     while RESULT.get(op_key) is None:
-        time.sleep(0.2)
+        time.sleep(0.1)
     response = RESULT[op_key]
     del RESULT[op_key]
     return response