X-Git-Url: http://git.scottworley.com/reliable-chat/blobdiff_plain/869430fa1ce8451a742702fa0b5d344d247513b6..40380bd38b8334e7e936502bbb4057ef5318d708:/webclient/rc.html

diff --git a/webclient/rc.html b/webclient/rc.html
index bb99825..988f1fb 100644
--- a/webclient/rc.html
+++ b/webclient/rc.html
@@ -82,6 +82,12 @@
 	var session = Math.random();  // For outgoing message IDs
 	var since = {};    // server -> time: For fetch?since=
 	var seen = {};     // seen_key -> message
+	// Messages have these fields:
+	//   Time: The timestamp.  Median of ServerTimes
+	//   ID: Some unique string for deduping
+	//   Text: The text of the message
+	//   ServerTimes: server -> timestamp
+	//   UI: The DOM node for this message in the UI
 
 	function rcnick() {
 		var nick = localStorage.getItem("nick");
@@ -139,12 +145,32 @@
 		return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
 	}
 
+	function rcupdatemessagetime(message) {
+		// Set message.Time to be the median of message.ServerTimes
+		var times = [];
+		for (var i in message.ServerTimes) {
+			times.push(message.ServerTimes[i]);
+		}
+		times.sort();
+		var middle = times.length/2;
+		if (times.length % 2) {
+			message.Time = times[middle];
+		} else {
+			var difference = times[middle].getTime() - times[middle-1].getTime();
+			message.Time = new Date(times[middle-1].getTime() + difference/2);
+		}
+	}
+
 	function rcreceivemessages(server, messages) {
 		for (var i in messages) {
 			var m = messages[i];
 			m.Time = new Date(m.Time);
 			var seen_key = make_seen_key(m.ID, m.Text);
-			if (!(seen_key in seen)) {
+			if (seen_key in seen) {
+				seen[seen_key].ServerTimes[server] = m.Time;
+				rcupdatemessagetime(seen[seen_key]);
+			} else {
+				m.ServerTimes = {server: m.Time};
 				seen[seen_key] = m;
 				rcaddmessagetohistory(m);
 				for (var i in servers) {