Real-time status about sync details (#569)

* Rough prototype of patch info display

* Remove extra newline

* Switch to binding

* Update slower for older timestamps

* Batch patches within a second of each other

* Fix indentation

* Less wasteful refresh hz

* More apt variable name

Co-authored-by: Lucien Greathouse <me@lpghatguy.com>

plugin/src/ServeSession.lua

@@ -95,6 +95,7 @@ function ServeSession.new(options)
 		__instanceMap = instanceMap,
 		__changeBatcher = changeBatcher,
 		__statusChangedCallback = nil,
+		__patchAppliedCallback = nil,
 		__connections = connections,
 	}
 
@@ -122,6 +123,10 @@ function ServeSession:onStatusChanged(callback)
 	self.__statusChangedCallback = callback
 end
 
+function ServeSession:onPatchApplied(callback)
+	self.__patchAppliedCallback = callback
+end
+
 function ServeSession:start()
 	self:__setStatus(Status.Connecting)
 
@@ -234,6 +239,10 @@ function ServeSession:__initialSync(rootInstanceId)
 				Log.warn("Could not apply all changes requested by the Rojo server:\n{}",
 					PatchSet.humanSummary(self.__instanceMap, unappliedPatch))
 			end
+
+			if self.__patchAppliedCallback then
+				pcall(self.__patchAppliedCallback, catchUpPatch, unappliedPatch)
+			end
 		end)
 end
 
@@ -247,6 +256,10 @@ function ServeSession:__mainSyncLoop()
 					Log.warn("Could not apply all changes requested by the Rojo server:\n{}",
 						PatchSet.humanSummary(self.__instanceMap, unappliedPatch))
 				end
+
+				if self.__patchAppliedCallback then
+					pcall(self.__patchAppliedCallback, message, unappliedPatch)
+				end
 			end
 
 			if self.__status ~= Status.Disconnected then