From f7bf728263e1061a2001adee9e956d7e7d517219 Mon Sep 17 00:00:00 2001
From: Andrew Welker <awelker@pepperdash.com>
Date: Thu, 7 Oct 2021 09:48:02 -0600
Subject: [PATCH] fix(Devices_Common): Clear meeting list and fire event if no
 meetings are scheduled

---
 .../VideoCodec/VideoCodecBase.cs                | 17 +++++++++++++++++
 .../VideoCodec/ZoomRoom/ZoomRoom.cs             | 15 ++++++++++-----
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/VideoCodecBase.cs b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/VideoCodecBase.cs
index d34c9e3b..79b05046 100644
--- a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/VideoCodecBase.cs	
+++ b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/VideoCodecBase.cs	
@@ -298,6 +298,13 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec
 			}
 
 			LinkVideoCodecToApi(codec, trilist, joinMap);
+
+		    trilist.OnlineStatusChange += (device, args) =>
+		    {
+		        if (!args.DeviceOnLine) return;
+
+		        trilist.SetString(joinMap.Schedule.JoinNumber, "\xFC");
+		    };
 		}
 
 		/// <summary>
@@ -785,6 +792,16 @@ ScreenIndexIsPinnedTo: {8} (a{17})
 
 			_currentMeetings = codec.CodecSchedule.Meetings.Where(m => m.StartTime >= currentTime || m.EndTime >= currentTime).ToList();
 
+            if (_currentMeetings.Count == 0)
+            {
+                var emptyXSigByteArray = XSigHelpers.ClearOutputs();
+                var emptyXSigString = Encoding.GetEncoding(XSigEncoding)
+                    .GetString(emptyXSigByteArray, 0, emptyXSigByteArray.Length);
+
+                trilist.SetString(joinMap.Schedule.JoinNumber, emptyXSigString);
+                return;
+            }
+
 			var meetingsData = UpdateMeetingsListXSig(_currentMeetings);
 			trilist.SetString(joinMap.Schedule.JoinNumber, meetingsData);
 			trilist.SetUshort(joinMap.MeetingCount.JoinNumber, (ushort)_currentMeetings.Count);
diff --git a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/ZoomRoom/ZoomRoom.cs b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/ZoomRoom/ZoomRoom.cs
index 32a24a28..a43ea79c 100644
--- a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/ZoomRoom/ZoomRoom.cs	
+++ b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/ZoomRoom/ZoomRoom.cs	
@@ -1306,11 +1306,16 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec.ZoomRoom
 								var codecBookings = JsonConvert.DeserializeObject<List<zCommand.BookingsListResult>>(
 									responseObj.ToString());
 
-								if (codecBookings != null && codecBookings.Count > 0)
-								{
-									CodecSchedule.Meetings = zCommand.GetGenericMeetingsFromBookingResult(
-										codecBookings, CodecSchedule.MeetingWarningMinutes);
-								}
+							    if (codecBookings != null && codecBookings.Count > 0)
+							    {
+							        CodecSchedule.Meetings = zCommand.GetGenericMeetingsFromBookingResult(
+							            codecBookings, CodecSchedule.MeetingWarningMinutes);
+							    }
+							    else
+							    {
+							        //need to clear the list if it's empty
+							        CodecSchedule.Meetings = new List<Meeting>();
+							    }
 
 								break;
 							}