package Terminal

import (
	"net"
	"git.swzry.com/NSMCServerLauncher/Logger"
	"fmt"
	"github.com/swzry/go.TSmap"
	"git.swzry.com/NSMCServerLauncher/Utils"
)

func HandlerTerminal(clientList TSmap.TSmap,conn net.Conn, chnum int){
	clobj,ok := clientList.Get(conn)
	if(!ok){
		fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Failed Handling Terminal : Client Not Found.\n",conn.RemoteAddr(),chnum)
		return
	}
	clientConn, ok := clobj.(*Utils.ClientConnection)
	if(!ok){
		fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Failed Handling Terminal : Internal Error: Can't Convert '%T' into 'Utils.ClientConnection'.\n",conn.RemoteAddr(),chnum,clobj)
		return
	}
	chlist, ok := clientConn.Channels.(TSmap.TSmap)
	if(!ok){
		fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Failed Handling Terminal : Internal Error: Can't Convert '%T' into 'TSMap.TSMap'.\n",conn.RemoteAddr(),chnum,clientConn.Channels)
		return
	}
	chobj,ok := chlist.Get(chnum)
	if(!ok){
		fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Failed Handling Terminal : Channel Not Found.\n",conn.RemoteAddr(),chnum)
		return
	}
	channel,ok := chobj.(Utils.AvaliableChannel)
	if(!ok){
		fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Failed Handling Terminal : Internal Error: Can't Convert '%T' into 'Utils.AvaliableChannel'.\n",conn.RemoteAddr(),chnum,chobj)
		return
	}
	channel.Term.Write([]byte("NSMC Server Launcher V1.0 - Shell\n"))
	channel.Term.SetPrompt("NSMC / >")
	for {
		line,err := channel.Term.ReadLine()
		if( err != nil){
			fmt.Fprintf(&Logger.Log.SSH,"Client '%v', Channels %v, Discard. Detail: %v.\n",conn.RemoteAddr(),chnum,err)
			break
		}
		switch line {
		case "exit":
			clientList.Delete(conn)
			conn.Close()
			break
		case "about":
			channel.Term.Write([]byte("NSMC Server Launcher V1.0\n"))
			channel.Term.Write([]byte("(https://git.swzry.com/zry/NSMCServerLauncher/)\n"))
			channel.Term.Write([]byte("By ZRY (https://www.swzry.com/)\n\n"))
			break
		default:
			ExecuteCommandLine(line,channel.Term,&channel.UserContext)
			break;
		}
	}
}