Sort room tickers by recently added

src/server/messages.d

@@ -7,6 +7,8 @@ module soulfind.server.messages;
 @safe:
 
 import soulfind.defines;
+import soulfind.server.room;
+import std.algorithm : sort;
 import std.bitmanip : Endian, nativeToLittleEndian, read;
 import std.stdio : writefln;
 import std.string : lastIndexOf;
@@ -1106,18 +1108,24 @@ class SItemSimilarUsers : SMessage
 
 class SRoomTicker : SMessage
 {
-    this(string room, string[string] tickers) scope
+    this(string room, Ticker[] tickers) scope
     {
         super(RoomTicker);
 
         writes(room);
         writei(cast(uint) tickers.length);
-        foreach (string user, string ticker ; tickers)
+        foreach (ticker ; sort_timestamp(tickers))
         {
-            writes(user);
-            writes(ticker);
+            writes(ticker.username);
+            writes(ticker.content);
         }
     }
+
+    @trusted
+    private auto sort_timestamp(Ticker[] tickers) scope
+    {
+        return tickers.sort!((ref a, ref b) => a.timestamp < b.timestamp);
+    }
 }
 
 class SRoomTickerAdd : SMessage

src/server/room.d

@@ -9,13 +9,21 @@ module soulfind.server.room;
 import soulfind.defines;
 import soulfind.server.messages;
 import soulfind.server.user;
+import std.datetime : Clock;
+
+struct Ticker
+{
+    string  username;
+    ulong   timestamp;
+    string  content;
+}
 
 class Room
 {
     string name;
 
     private User[string]    user_list;
-    private string[string]  tickers;
+    private Ticker[string]  tickers;
 
 
     this(string name)
@@ -41,7 +49,7 @@ class Room
             name, user_names, statuses, speeds, upload_numbers,
             shared_files, shared_folders, country_codes
         );
-        scope tickers_msg = new SRoomTicker(name, tickers);
+        scope tickers_msg = new SRoomTicker(name, tickers.values);
 
         send_to_all(joined_room_msg);
         user.send_message(join_room_msg);
@@ -154,15 +162,19 @@ class Room
         if (username !in user_list)
             return;
 
-        if (username in tickers && tickers[username] == content)
+        if (username in tickers && tickers[username].content == content)
             return;
 
         del_ticker(username);
 
         if (!content)
             return;
 
-        tickers[username] = content;
+        tickers[username] = Ticker(
+            username,
+            Clock.currTime.toUnixTime,
+            content
+        );
 
         scope msg = new SRoomTickerAdd(name, username, content);
         send_to_all(msg);