Make Matrix interactive.

matrix/matrix.go

@@ -44,6 +44,44 @@ func Listener(storage *spaceapi.Storage, homeServer, userID, token, room string)
 
 	syncer := cli.Syncer.(*gomatrix.DefaultSyncer)
 	syncer.OnEventType("m.room.message", func(ev *gomatrix.Event) {
+		if ev.Sender == userID {
+			return
+		}
+
+		msgType, ok := ev.MessageType()
+		if !ok || msgType != "m.text" {
+			return
+		}
+
+		body, ok := ev.Body()
+		if !ok {
+			log.Printf("[matrix] Message with no body: %s", ev)
+			return
+		}
+
+		switch body {
+		case txt.CommandState:
+			state := storage.Status().State
+			msg := txt.StateUnknown
+
+			if state.Open != nil {
+				switch *state.Open {
+				case true:
+					msg = txt.StateOpen
+				case false:
+					msg = txt.StateClosed
+				}
+			}
+
+			if _, err := cli.SendText(room, msg); err != nil {
+				log.Printf("Error sending message: %s", err)
+			}
+		case txt.CommandClose:
+			storage.Modify(func(status *spaceapi.SpaceStatus) {
+				open := false
+				status.State.Open = &open
+			})
+		}
 		// TODO react to events
 	})