Add pollable api to get offload status from tc2-agent – which can in …

…the future give percent complete and time-remaining estimates, but for now returns zero for those fields as changes are needed to tc2-firmware.

api/audiorecording.go

@@ -83,7 +83,7 @@ func (api *ManagementAPI) AudioRecordingStatus(w http.ResponseWriter, r *http.Re
 	err = tc2AgentDbus.Call("org.cacophony.TC2Agent.audiostatus", 0).Store(&mode, &status)
 	if err != nil {
 		log.Println(err)
-		http.Error(w, "Failed to request test audio recoding", http.StatusInternalServerError)
+		http.Error(w, "Failed to request test audio recording", http.StatusInternalServerError)
 		return
 	}
 	rp2040status := map[string]int{"mode": mode, "status": status}
@@ -131,7 +131,7 @@ func (api *ManagementAPI) TakeTestAudioRecording(w http.ResponseWriter, r *http.
 	err = tc2AgentDbus.Call("org.cacophony.TC2Agent.testaudio", 0).Store(&result)
 	if err != nil {
 		log.Println(err)
-		http.Error(w, "Failed to request test audio recoding", http.StatusInternalServerError)
+		http.Error(w, "Failed to request test audio recording", http.StatusInternalServerError)
 		return
 	}
 	w.WriteHeader(http.StatusOK)

api/offloadstatus.go

@@ -0,0 +1,64 @@
+/*
+management-interface - Web based management of Raspberry Pis over WiFi
+Copyright (C) 2019, The Cacophony Project
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+func (api *ManagementAPI) RecordingOffloadStatus(w http.ResponseWriter, r *http.Request) {
+	tc2AgentDbus, err := getTC2AgentDbus()
+	if err != nil {
+		log.Println(err)
+		http.Error(w, "Failed to connect to DBus", http.StatusInternalServerError)
+		return
+	}
+	type OffloadNotInProgress struct {
+		InProgress bool `json:"offload-in-progress"`
+	}
+	type OffloadInProgress struct {
+		InProgress       bool `json:"offload-in-progress"`
+		SecondsRemaining int  `json:"seconds-remaining"`
+		PercentComplete  int  `json:"percent-complete"`
+	}
+
+	var isOffloading int
+	var percentComplete int
+	var secondsRemaining int
+	err = tc2AgentDbus.Call("org.cacophony.TC2Agent.offloadstatus", 0).Store(&isOffloading, &percentComplete, &secondsRemaining)
+	if err != nil {
+		log.Println(err)
+		http.Error(w, "Failed to request recording offload status", http.StatusInternalServerError)
+		return
+	}
+	w.WriteHeader(http.StatusOK)
+	if isOffloading == 1 {
+		json.NewEncoder(w).Encode(OffloadInProgress{
+			InProgress:       true,
+			PercentComplete:  percentComplete,
+			SecondsRemaining: secondsRemaining,
+		})
+	} else {
+		json.NewEncoder(w).Encode(OffloadNotInProgress{
+			InProgress: false,
+		})
+	}
+
+}