1 files changed, 89 insertions, 0 deletions
diff --git a/server.go b/server.go
new file mode 100644
index 0000000..56cd582
--- /dev/null
+++ b/server.go
@@ -0,0 +1,89 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"strings"
+)
+
+var (
+	clients = make(map[net.Conn]string)
+	chats   [20]string
+	chats_i int
+)
+
+func broadcast(message string) {
+	for conn, _ := range clients {
+		fmt.Fprint(conn, message)
+	}
+}
+
+func handleCommand(conn net.Conn, message string) {
+	parts := strings.Split(message, " ")
+	command := parts[0]
+	fmt.Println("command >>", command)
+	switch command {
+	case "login":
+		name := parts[1]
+		fmt.Printf("%v now is %v\n", clients[conn], name)
+		clients[conn] = name
+		fmt.Fprintf(conn, "!%v\n", name)
+	default:
+		fmt.Println("Command not found")
+	}
+}
+
+func handleConnection(conn net.Conn) {
+	defer conn.Close()
+
+	clients[conn] = conn.RemoteAddr().String()
+	fmt.Println("Client connected: ", clients[conn])
+	fmt.Fprintln(conn, "127.0.0.1:7654=Hello everyone from server")
+	for i := 0; i < chats_i; i++ {
+		fmt.Fprint(conn, chats[i])
+	}
+
+	for {
+		message, error := bufio.NewReader(conn).ReadString('\n')
+		if error != nil {
+			break
+		}
+		if message[0] == '/' {
+			handleCommand(conn, message[1:len(message)-1])
+		} else {
+			chats[chats_i] = clients[conn] + "=" + message
+			fmt.Print(">> ", chats[chats_i])
+			broadcast(chats[chats_i])
+			chats_i = chats_i + 1
+			if chats_i >= len(chats) {
+				chats_i = 0
+			}
+		}
+	}
+
+	fmt.Println("Client disconnected:", clients[conn])
+	delete(clients, conn)
+}
+
+func main() {
+	listener, err := net.Listen("tcp", "0.0.0.0:7654")
+	if err != nil {
+		fmt.Println("Error starting server:", err)
+		return
+	}
+	defer listener.Close()
+
+	fmt.Println("Chat server started on 0.0.0.0:7654")
+
+	chats_i = 0
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			fmt.Println("Error accepting connection:", err)
+			continue
+		}
+
+		go handleConnection(conn)
+	}
+}