Adds DSay command (#2901)

* DSay command

* Moves getting the clients from DeadChat and AdminDeadChat to a function

Content.Server/Administration/Commands/DSay.cs

@@ -0,0 +1,40 @@
+using Content.Server.Interfaces.Chat;
+using Content.Shared.Administration;
+using Robust.Server.Interfaces.Console;
+using Robust.Server.Interfaces.Player;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+
+namespace Content.Server.Administration.Commands
+{
+    [AdminCommand(AdminFlags.Admin)]
+    class DSay : IClientCommand
+    {
+        public string Command => "dsay";
+
+        public string Description => Loc.GetString("Sends a message to deadchat as an admin");
+
+        public string Help => Loc.GetString($"Usage: {Command} <message>");
+
+        public void Execute(IConsoleShell shell, IPlayerSession player, string[] args)
+        {
+            if (player == null)
+            {
+                shell.SendText((IPlayerSession) null, "Only players can use this command");
+                return;
+            }
+
+            if (args.Length < 1)
+                return;
+
+            var message = string.Join(" ", args).Trim();
+            if (string.IsNullOrEmpty(message))
+                return;
+
+            var chat = IoCManager.Resolve<IChatManager>();
+
+            chat.SendAdminDeadChat(player, message);
+            
+        }
+    }
+}

Content.Server/Chat/ChatManager.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 using Content.Server.Administration;
 using Content.Server.GameObjects.Components.GUI;
@@ -212,9 +212,7 @@ namespace Content.Server.Chat
                 return;
             }
 
-            var clients = _playerManager
+            var clients = GetDeadChatClients();
-                .GetPlayersBy(x => x.AttachedEntity != null && x.AttachedEntity.HasComponent<GhostComponent>())
-                .Select(p => p.ConnectedClient);
 
             var msg = _netManager.CreateNetMessage<MsgChatMessage>();
             msg.Channel = ChatChannel.Dead;
@@ -224,6 +222,31 @@ namespace Content.Server.Chat
             _netManager.ServerSendToMany(msg, clients.ToList());
         }
 
+        public void SendAdminDeadChat(IPlayerSession player, string message)
+        {
+            // Check if message exceeds the character limit
+            if (message.Length > MaxMessageLength)
+            {
+                DispatchServerMessage(player, Loc.GetString(MaxLengthExceededMessage, MaxMessageLength));
+                return;
+            }
+
+            var clients = GetDeadChatClients();
+
+            var msg = _netManager.CreateNetMessage<MsgChatMessage>();
+            msg.Channel = ChatChannel.Dead;
+            msg.Message = message;
+            msg.MessageWrap = $"{Loc.GetString("ADMIN")}:(${player.ConnectedClient.UserName}): {{0}}";
+            _netManager.ServerSendToMany(msg, clients.ToList());
+        }
+
+        private IEnumerable<INetChannel> GetDeadChatClients()
+        {
+            return _playerManager
+                .GetPlayersBy(x => x.AttachedEntity != null && x.AttachedEntity.HasComponent<GhostComponent>())
+                .Select(p => p.ConnectedClient);
+        }
+
         public void SendAdminChat(IPlayerSession player, string message)
         {
             // Check if message exceeds the character limit

Content.Server/Interfaces/Chat/IChatManager.cs

@@ -1,4 +1,4 @@
-using Robust.Server.Interfaces.Player;
+using Robust.Server.Interfaces.Player;
 using Robust.Shared.Interfaces.GameObjects;
 
 namespace Content.Server.Interfaces.Chat
@@ -27,6 +27,7 @@ namespace Content.Server.Interfaces.Chat
         void SendOOC(IPlayerSession player, string message);
         void SendAdminChat(IPlayerSession player, string message);
         void SendDeadChat(IPlayerSession player, string message);
+        void SendAdminDeadChat(IPlayerSession player, string message);
 
         void SendHookOOC(string sender, string message);