check for free disk space at startup

resolve merge

src/core/network/libtorrent_int.py

@@ -21,6 +21,25 @@ def get_free_space_mb(dirname):
         st = os.statvfs(dirname)
         return st.f_bavail * st.f_frsize
 
+def check_space():
+    while not state.shutdown_event.is_set():
+        for magnet_uri, magnetdl in list(state.active_downloads.items()):
+            try:
+                status = magnetdl.status()
+            except RuntimeError:
+                continue
+            
+            if status.state == lt.torrent_status.downloading:
+                free_space = get_free_space_mb(state.download_path)
+                total_size = status.total_wanted
+
+                if free_space < total_size:
+                    consoleLog(f"Not enough free space to continue downloading: {status.name}")
+                    magnetdl.pause()
+                    break
+        
+        time.sleep(5)
+
 def init_session():
     if state.dl_session is not None:
         return

src/main.py

@@ -3,6 +3,7 @@ from core.utils.logging.loghandler import split_data, check_completed, check_dow
 from core.network.interface import list_interfaces, init_interfaces
 from core.utils.logging.logs import get_download_logs
 from core.utils.logging.logs import set_main_window
+from core.network.libtorrent_int import check_space
 from core.utils.general.shutdown import closehelper
 from core.utils.general.wrappers import run_thread
 from core.utils.general.shutdown import force_exit
@@ -59,6 +60,7 @@ def main():
     # Start background non-daemon threads
     run_thread(threading.Thread(target=check_completed, args=(downloads, state.autoresume)))
     run_thread(threading.Thread(target=check_downloads, args=(downloads,)))
+    run_thread(threading.Thread(target=check_space, args=()))
     # Finish counting startup time
     elapsed = time.perf_counter() - start_time
     consoleLog(f"Initialization completed in {elapsed:.2f}s. Launching GUI")
@@ -66,4 +68,4 @@ def main():
     run_gui()
 
 if __name__ == "__main__":
-    main()
+    main()