@echo off
title GaC hkrpg GO Server (4.6.51)
cd /d "%~dp0"

echo ============================================================
echo   GaC hkrpg GO - StarRail 4.6.51 Private Server (Go)
echo   gameserver : UDP 23301 (KCP)
echo   sdkserver  : HTTP 21000 (dispatch + login + SRTools)
echo ============================================================
echo.
echo   [1] Start server (gameserver + sdkserver)
echo   [2] Start gameserver only
echo   [3] Start sdkserver only
echo   [4] Build / rebuild exes (requires Go)
echo   [5] Exit
echo.
set /p choice="Select: "

if "%choice%"=="1" goto all
if "%choice%"=="2" goto gs
if "%choice%"=="3" goto sdk
if "%choice%"=="4" goto build
goto :eof

:all
start "GaC GO sdkserver" cmd /k sdkserver-go.exe
start "GaC GO gameserver" cmd /k gameserver-go.exe
echo Both servers started. Close their windows to stop them.
pause
goto :eof

:gs
gameserver-go.exe
pause
goto :eof

:sdk
sdkserver-go.exe
pause
goto :eof

:build
where go >nul 2>nul || set "PATH=%PATH%;C:\Program Files\Go\bin"
go build -o gameserver-go.exe ./cmd/gameserver || (pause & goto :eof)
go build -o sdkserver-go.exe ./cmd/sdkserver || (pause & goto :eof)
echo Build OK.
pause
goto :eof