feat: device-status command (API stub)

- Added device-status command (checks IsOnline/IsConnected/State
  on all objects — currently returns empty as CODESYS scripting
  API v3.5.22.10 does not expose these properties on IScriptObject)
- CLI: project device-status [--device <filter>]

Author: ArthurkaX

cds_text_sync.py

@@ -333,6 +333,14 @@ def cmd_project_list_devices():
     _project_command("list_devices")
 
 
+def cmd_device_status(device=""):
+    """Check online/connection status of devices."""
+    params = {}
+    if device:
+        params["device"] = device
+    _project_command("device_status")
+
+
 def cmd_discover():
     """Discover CODESYS installations and open projects via daemon."""
     _project_command("discover")
@@ -422,7 +430,8 @@ def build_parser() -> argparse.ArgumentParser:
     p_project.add_argument(
         "project_action",
         choices=["info", "tree", "read", "open", "close", "list",
-                 "snapshot", "build", "list-devices", "compare"],
+                 "snapshot", "build", "list-devices", "compare",
+                 "device-status"],
         help="info - project details\n"
              "tree - object tree\n"
              "read - read object source\n"
@@ -432,6 +441,7 @@ def build_parser() -> argparse.ArgumentParser:
              "snapshot - export full XML snapshot\n"
              "build - compile project\n"
              "list-devices - enumerate devices\n"
+             "device-status - check device online/connection status\n"
              "compare --against FILE - diff live project vs snapshot",
     )
     p_project.add_argument("--path", default="",
@@ -442,6 +452,8 @@ def build_parser() -> argparse.ArgumentParser:
                            help="Tree depth, 0 = unlimited")
     p_project.add_argument("--against", default="",
                            help="Path to snapshot for compare")
+    p_project.add_argument("--device", default="",
+                           help="Device name filter (for device-status)")
     p_exec = subparsers.add_parser(
         "exec",
         help="Execute command through daemon",
@@ -523,6 +535,8 @@ def main():
             cmd_project_list_devices()
         elif args.project_action == "compare":
             cmd_compare(against=args.against)
+        elif args.project_action == "device-status":
+            cmd_device_status(device=args.device)
 
     elif args.command == "discover":
         cmd_discover()

src/ide_bridge/ide_daemon.pyw

@@ -254,6 +254,8 @@ class DaemonPipeServer(object):
             return self._call_engine_cli_raw(args)
         elif method == "discover":
             return self._discover()
+        elif method == "device_status":
+            return self._device_status(params)
         else:
             return {"ok": False, "error": "Unknown method: {0}".format(method)}
 
@@ -736,6 +738,49 @@ class DaemonPipeServer(object):
         except Exception as e:
             return {"ok": False, "error": "List devices error: {0}".format(e)}
 
+    # ── Device Status ────────────────────────────────────────────────
+
+    def _device_status(self, params):
+        """Check online/connection status of devices."""
+        project, err = self._get_active_project()
+        if err:
+            return err
+        try:
+            device_filter = (params.get("device") or "").lower()
+            all_objs = list(project.get_children(recursive=True))
+            status_list = []
+            # Properties to try for each object
+            status_props = [
+                'IsOnline', 'IsConnected', 'State', 'Online', 'Connected',
+                'Status', 'IsActive', 'IsRunning', 'DeviceState',
+                'get_IsOnline', 'get_IsConnected', 'get_State',
+            ]
+            for obj in all_objs:
+                try:
+                    name = self._obj_name(obj)
+                    if not name:
+                        continue
+                    path = self._build_path(obj)
+                    entry = {"name": name, "path": path}
+                    for prop in status_props:
+                        try:
+                            val = getattr(obj, prop)
+                            if val is not None:
+                                if callable(val):
+                                    entry[prop] = str(val())
+                                else:
+                                    entry[prop] = str(val)
+                        except Exception:
+                            pass
+                    if len(entry) > 2:  # has at least one status prop
+                        if not device_filter or device_filter in name.lower():
+                            status_list.append(entry)
+                except Exception:
+                    pass
+            return {"ok": True, "data": {"devices": status_list}}
+        except Exception as e:
+            return {"ok": False, "error": "Device status error: {0}".format(e)}
+
     # ── Discover ───────────────────────────────────────────────────────
 
     def _discover(self):