evcloudsvc: response to /record request with error message when terminal offline

opencv-motion-detect/evcloudsvc.cpp

@@ -1456,32 +1456,41 @@ public:
                 // find slicer id by camera sn
                 if(this->peerData["ipcStatus"].count(sn) != 0) {
                     auto dsn = this->peerData["ipcStatus"][sn]["mgrTerminal"]["sn"].get<string>();
-                    json j = getConfigForDevice(dsn);
-                    if(j["code"] == 0) {
-                        for(auto &[k,v]:j["data"].items()){
-                            auto &ipcs = v["ipcs"];
-                            for(auto &ipc: ipcs) {
-                                if(ipc["sn"] == sn) {
-                                    evslicer = ipc["modules"]["evslicer"][0];
-                                    break;
+                    if(this->peerData["ipcStatus"][sn]["mgrTerminal"]["online"].get<bool>()){
+                        // online
+                        json j = getConfigForDevice(dsn);
+                        if(j["code"] == 0) {
+                            for(auto &[k,v]:j["data"].items()){
+                                auto &ipcs = v["ipcs"];
+                                for(auto &ipc: ipcs) {
+                                    if(ipc["sn"] == sn) {
+                                        evslicer = ipc["modules"]["evslicer"][0];
+                                        break;
+                                    }
                                 }
                             }
                         }
+                        if(evslicer.size() > 0) {
+                            auto target = evslicer["sn"].get<string>() + ":evslicer:" + to_string(evslicer["iid"].get<int>());
+                            json payload = json();
+                            payload["target"] = target;
+                            payload["metaType"] = "cmd";
+                            payload["metaValue"] = "debug:record";
+                            payload["data"] = json();
+                            payload["data"]["type"] = type;
+                            payload["data"]["start"] = start;
+                            payload["data"]["end"] = end;
+                            ret = this->handleCmd(payload);
+                        }else{
+                            ret["code"] = 3;
+                            ret["msg"] = dsn + " invalid config for slicer";
+                        }
+                    }else{
+                        // offline
+                        ret["code"] = 2;
+                        ret["msg"] = dsn + " terminal off line";
                     }
                 }
-
-                if(evslicer.size() > 0) {
-                    auto target = evslicer["sn"].get<string>() + ":evslicer:" + to_string(evslicer["iid"].get<int>());
-                    json payload = json();
-                    payload["target"] = target;
-                    payload["metaType"] = "cmd";
-                    payload["metaValue"] = "debug:record";
-                    payload["data"] = json();
-                    payload["data"]["type"] = type;
-                    payload["data"]["start"] = start;
-                    payload["data"]["end"] = end;
-                    ret = this->handleCmd(payload);
-                }
             }
             catch(exception &e) {
                 ret["code"] = -1;