License, readme update, command/tag changes

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 jhot.me
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -12,6 +12,15 @@
     - [Syncthing](https://github.com/syncthing/syncthing)
     - [National Weather Service](https://www.weather.gov/)
 
+## NATS Topics
+
+- `homeassistant.states.{domain}.{entity}.{state}` - Home Assistant device state changes: [payload](https://www.home-assistant.io/docs/configuration/state_object/)
+- `homeassistant.zha.{device IEEE}` - ZHA events: [payload](https://www.home-assistant.io/docs/configuration/state_object/)
+- `homeassistant.nfc.{tag ID}` - Home Assistant NFC tag scanned: [payload](https://www.home-assistant.io/docs/configuration/state_object/)
+- `homeassistant.timer.{timer name}.finished` - Home Assistant timer finished: payload is simply `"finished"`
+- `schedules.{schedule name}` - HATS schedule finished: payload is simply `"finished"`
+- `command.{command name}` - Command called via HATS API: payload is a byte array of the HTTP Post body
+
 ## Example Client
 
 ```golang

internal/api/api.go

@@ -316,29 +316,10 @@ func postNtfyHandler(w http.ResponseWriter, r *http.Request) {
 func postCommandHandler(w http.ResponseWriter, r *http.Request) {
 	commandName := chi.URLParam(r, "commandName")
 
-	switch commandName {
+	body, err := io.ReadAll(r.Body)
-	// Commands without payloads
+	if err != nil {
-	case "bedtime":
+		logger.Error("Error reading request body", "error", err, "url", r.URL.String())
-		nats.PublishString(fmt.Sprintf("command.%s", commandName), "called")
-		render.PlainText(w, r, "OK")
-		return
-	// Commands with payloads
-	case "sonarr":
-	case "radarr":
-	case "paupdate":
-		body, err := io.ReadAll(r.Body)
-		if err != nil {
-			logger.Error("Error reading request body", "error", err, "url", r.URL.String())
-			http.Error(w, "Unable to read body", http.StatusBadRequest)
-			return
-		}
-		nats.Publish(fmt.Sprintf("command.%s", commandName), body)
-		render.PlainText(w, r, "OK")
-		return
-	// Otherwise
-	default:
-		logger.Error("Command not implemented", "commandName", commandName)
-		http.Error(w, "Command not implemented", http.StatusNotFound)
-		return
 	}
+	nats.Publish(fmt.Sprintf("command.%s", commandName), body)
+	render.PlainText(w, r, "OK")
 }

internal/homeassistant/subscriber.go

@@ -24,7 +24,7 @@ var (
 const (
 	stateChangeEventId   = 1001
 	zhaEventId           = 1002
-	qrEventId            = 1003
+	nfcEventId           = 1003
 	timerFinishedEventId = 1005
 )
 
@@ -115,7 +115,7 @@ func handleMessages() {
 				haWebsocketConn.WriteJSON(ha.SubscribeEventsMessage{
 					Type:      ha.MessageType.SubscribeEvents,
 					EventType: ha.MessageType.TagScanned,
-					Id:        qrEventId})
+					Id:        nfcEventId})
 				haWebsocketConn.WriteJSON(ha.SubscribeEventsMessage{
 					Type:      ha.MessageType.SubscribeEvents,
 					EventType: ha.MessageType.TimerFinished,
@@ -139,9 +139,9 @@ func handleMessages() {
 				case zhaEventId:
 					data, _ := json.Marshal(message.Event.Data)
 					nats.Publish(fmt.Sprintf("homeassistant.zha.%s", message.Event.Data.DeviceIeee), data)
-				case qrEventId:
+				case nfcEventId:
 					data, _ := json.Marshal(message.Event.Data)
-					nats.Publish(fmt.Sprintf("homeassistant.qr.%s", message.Event.Data.TagId), data)
+					nats.Publish(fmt.Sprintf("homeassistant.nfc.%s", message.Event.Data.TagId), data)
 				case timerFinishedEventId:
 					nats.PublishString(fmt.Sprintf("homeassistant.%s.finished", message.Event.Data.EntityId), "finished")
 				}