fix: #1071 - Emergency Contact Closure Null Ref

EssentialsRoomconfig.cs

added debug statements to GetEmergency method
changed 'return null' to return the object 'e'

EssentialsRoomEmergencyConfig.cs

added 'PortDeviceKey' to EssentialsRoomEmergencyTrigerConfig

EssentialsRoomEmergencyContactClosure.cs

added debug statements to constructor to help with debugging

PepperDashEssentials/Room/Config/EssentialsRoomConfig.cs

@@ -56,21 +56,32 @@ namespace PepperDash.Essentials.Room.Config
 		    }
 		}
 		
-        /// <summary>
+		/// <summary>
         /// Gets and operating, standalone emergegncy object that can be plugged into a room.
         /// Returns null if there is no emergency defined
         /// </summary>
         public static EssentialsRoomEmergencyBase GetEmergency(EssentialsRoomPropertiesConfig props, IEssentialsRoom room)		
         {
-            // This emergency 
+	        // This emergency 
             var emergency = props.Emergency;
-            if (emergency != null)
+	        if (emergency == null || room == null) return null;
-            {
+	        
-                //switch on emergency type here.  Right now only contact and shutdown
+			Debug.Console(0, @"emergency config values:
-                var e = new EssentialsRoomEmergencyContactClosure(room.Key + "-emergency", props.Emergency, room);
+behavior: {0}
-                DeviceManager.AddDevice(e);
+portDeviceKey: {1}
-            }
+type: {2}
-            return null;
+number: {3}
+triggerOnClose: {4}", 
+ emergency.Behavior,
+ emergency.Trigger.PortDeviceKey,
+ emergency.Trigger.Type,
+ emergency.Trigger.Number,
+ emergency.Trigger.TriggerOnClose);
+
+	        //switch on emergency type here.  Right now only contact and shutdown
+	        var e = new EssentialsRoomEmergencyContactClosure(room.Key + "-emergency", emergency, room);	        
+	        DeviceManager.AddDevice(e);
+	        return e;
         }
 
 		/// <summary>

PepperDashEssentials/Room/Config/EssentialsRoomEmergencyConfig.cs

@@ -21,6 +21,11 @@ namespace PepperDash.Essentials.Room.Config
     /// </summary>
     public class EssentialsRoomEmergencyTriggerConfig
     {
+		/// <summary>
+		/// String representing the port device used to access the type
+		/// </summary>
+		public string PortDeviceKey { get; set; }
+
         /// <summary>
         /// contact,
         /// </summary>

PepperDashEssentials/Room/Emergency/EsentialsRoomEmergencyContactClosure.cs

@@ -12,32 +12,68 @@ using PepperDash.Essentials.Room.Config;
 
 namespace PepperDash.Essentials.Room
 {	
-
-
-
     public class EssentialsRoomEmergencyContactClosure : EssentialsRoomEmergencyBase
     {
         IEssentialsRoom Room;
         string Behavior;
         bool TriggerOnClose;
 
+		// TODO [ ] Issue #1071 - Emergency
         public EssentialsRoomEmergencyContactClosure(string key, EssentialsRoomEmergencyConfig config, IEssentialsRoom room) :
             base(key)
         {
-            Room = room;
+			if (config == null || room == null) return;
-            var cs = Global.ControlSystem;
 
-            if (config.Trigger.Type.Equals("contact", StringComparison.OrdinalIgnoreCase))
+            Room = room;
-            {
+			Behavior = config.Behavior;
-                var portNum = (uint)config.Trigger.Number;
+			TriggerOnClose = config.Trigger.TriggerOnClose; 
-                if (portNum <= cs.NumberOfDigitalInputPorts)
+			
-                {
+			var cs = Global.ControlSystem;
-                    cs.DigitalInputPorts[portNum].Register();
+
-                    cs.DigitalInputPorts[portNum].StateChange += EsentialsRoomEmergencyContactClosure_StateChange;
+			Debug.Console(0, this, "Control system supports digital inputs {0}", cs.SupportsDigitalInput);
-                }
+			Debug.Console(0, this, "Control system supports versiports {0}", cs.SupportsVersiport);
-            }
+
-            Behavior = config.Behavior;
+			Debug.Console(0, this, "------> type check");
-            TriggerOnClose = config.Trigger.TriggerOnClose;
+
+	        if (string.IsNullOrEmpty(config.Trigger.Type))
+	        {
+				Debug.Console(0, this, "Emergency Contact Closure type is empty or null");
+		        return;
+	        }
+
+	        if (!config.Trigger.Type.Equals("contact", StringComparison.OrdinalIgnoreCase))
+	        {
+				Debug.Console(0, this, "Emergency Contact Closure type is not 'contact'");
+				return;
+	        }
+
+			Debug.Console(0, this, "------> type passed");
+			Debug.Console(0, this, "------> portNum check");
+
+			var portNum = (uint)config.Trigger.Number;
+	        if (portNum > cs.NumberOfDigitalInputPorts) return;
+
+			Debug.Console(0, this, "------> portNum passed");
+			Debug.Console(0, this, "------> port check");
+
+			var port = cs.DigitalInputPorts[portNum];
+	        if (port == null)
+	        {
+		        Debug.Console(0, this, "Control system does not support digital inputs");
+				return;
+	        }
+
+			Debug.Console(0, this, "------> port passed");
+			Debug.Console(0, this, "------> port register check");
+
+			port.Register();
+
+			Debug.Console(0, this, "------> port register passed");
+			Debug.Console(0, this, "------> port event check");
+
+	        port.StateChange += EsentialsRoomEmergencyContactClosure_StateChange;
+
+			Debug.Console(0, this, "------> port event passed");
         }
 
         void EsentialsRoomEmergencyContactClosure_StateChange(DigitalInput digitalInput, DigitalInputEventArgs args)