FS22 Mod Folder Switch Script

@echo off
set "desired_mod_folder=PLACEHOLDER"
set "game_link=C:\Users\%USERNAME%\Desktop\Farming Simulator 22.url"
set "mod_base=C:\Users\%USERNAME%\Documents\my games\FarmingSimulator2022"
set "folderinfo=%mod_base%\mods\_folderinfo.txt"

:: Do nothing if the desired mod folder doesn't exist - We probably already have the appropriate one
if exist "%mod_base%\%desired_mod_folder%" (
  ::We need to rename the current mod folder to its temporary name
  if not exist "%folderinfo%" (
    echo Could not find "%folderinfo%"
    pause
    exit /b 1
  )
  set "original_name="
  for /f "usebackq delims=" %%i in ("%folderinfo%") do (
    set "original_name=%%i"
    goto :end_loop
  )
  :end_loop
  set errcode=0
  if "%original_name%x"=="x" set errcode=1
  if "%errcode%" equ "1" (
    echo Could not find the file indicator in "%folderinfo%"
    pause
    exit /b 2
  )
  echo Renaming current mod folder to mods_%original_name%
  ren "%mod_base%\mods" "mods_%original_name%"
  if %errorlevel% gtr 0 (
    echo Failed to rename mod folder
    pause
    exit /b 3
  )
  echo Renaming desired mod folder to mods
  ren "%mod_base%\%desired_mod_folder%" "mods"
  if %errorlevel% gtr 0 (
    echo ALERT^^! Renaming failed. Game will not have a mods folder currently
    pause
    exit /b 4
  )
  echo Renaming successful. Starting the game
)
"%game_link%"