// socket-server project main.go
package main
import (
        "fmt"
        "net"
        "os"
	"strings"
)
const (
        SERVER_HOST = "localhost"
        SERVER_PORT = "9988"
        SERVER_TYPE = "tcp"
	MAGIC_HEADER = "e8437140-4347-48cc-a31d-dcdc944ffc15"
)

func main() {
        fmt.Println("Server Running...")
        server, err := net.Listen(SERVER_TYPE, SERVER_HOST+":"+SERVER_PORT)
        if err != nil {
                fmt.Println("Error listening:", err.Error())
                os.Exit(1)
        }
        defer server.Close()
        fmt.Println("Listening on " + SERVER_HOST + ":" + SERVER_PORT)
        fmt.Println("Waiting for client...")
        for {
                connection, err := server.Accept()
                if err != nil {
                        fmt.Println("Error accepting: ", err.Error())
                        os.Exit(1)
                }
                fmt.Println("client connected")
                go processClient(connection)
        }
}
func processClient(connection net.Conn) {
        buffer := make([]byte, 1024)
        mLen, err := connection.Read(buffer)
        if err != nil {
                fmt.Println("Error reading:", err.Error())
        }
	// handshake
	// split out the elements of the clients handshake
	// read the first 40 bytes, check the magic header, reject invalids
	// handle data format negotiation and respond with selected protocol
	// store information about 
	// _, err = connection.Write([]byte("Thanks! Got your message:" + string(buffer[:mLen])))
	data := string(buffer[:mLen])
	parts := strings.Split(data, " ")
        fmt.Println("Received: ", parts)
	_, err = connection.Write([]byte("thanks"))
        connection.Close()
}