add chatserver & client

SubProject/ChatServer/ChatMessage.cs

@@ -0,0 +1,76 @@
+using System;
+
+namespace NoticeServer
+{
+    /// <summary>
+    /// 채팅 메시지 타입
+    /// </summary>
+    public enum MessageType
+    {
+        /// <summary>클라이언트 연결</summary>
+        Connect,
+        /// <summary>클라이언트 연결 해제</summary>
+        Disconnect,
+        /// <summary>일반 채팅 메시지</summary>
+        Chat,
+        /// <summary>서버 공지</summary>
+        Notice,
+        /// <summary>귓속말</summary>
+        Whisper,
+        /// <summary>사용자 목록 요청</summary>
+        UserListRequest,
+        /// <summary>사용자 목록 응답</summary>
+        UserListResponse,
+        /// <summary>핑 (연결 유지)</summary>
+        Ping,
+        /// <summary>퐁 (핑 응답)</summary>
+        Pong
+    }
+
+    /// <summary>
+    /// 채팅 메시지 프로토콜
+    /// </summary>
+    [Serializable]
+    public class ChatMessage
+    {
+        /// <summary>메시지 타입</summary>
+        public MessageType Type { get; set; }
+
+        /// <summary>발신자 닉네임</summary>
+        public string NickName { get; set; }
+
+        /// <summary>발신자 사원번호 (Employee ID)</summary>
+        public string EmployeeId { get; set; }
+
+        /// <summary>발신자 IP</summary>
+        public string IpAddress { get; set; }
+
+        /// <summary>발신자 호스트명</summary>
+        public string HostName { get; set; }
+
+        /// <summary>메시지 내용</summary>
+        public string Content { get; set; }
+
+        /// <summary>수신자 사원번호 (1:1 채팅용)</summary>
+        public string TargetEmployeeId { get; set; }
+
+        /// <summary>수신자 닉네임 (귓속말용, null이면 전체)</summary>
+        public string TargetNickName { get; set; }
+
+        /// <summary>전송 시간</summary>
+        public DateTime Timestamp { get; set; }
+
+        /// <summary>사용자 그룹</summary>
+        public string UserGroup { get; set; }
+
+        public ChatMessage()
+        {
+            Timestamp = DateTime.Now;
+        }
+
+        public override string ToString()
+        {
+            return $"[{Timestamp:HH:mm:ss}] {NickName}: {Content}";
+        }
+    }
+}