start.bat

@echo off
setlocal
set "APP_VERSION=v1.0 beta"
title KleinFlow %APP_VERSION%
for /F "delims=#" %%A in ('"prompt #$E# & for %%B in (1) do rem"') do set "ESC=%%A"
cls
echo %ESC%[38;2;139;92;246m
echo  _  __ _      _        _____ _                 
echo ^| ^|/ /^| ^|    ^(_)      ^|  ___^| ^|                
echo ^| ' / ^| ^| ___ _ _ __  ^| ^|_  ^| ^| _____      __  
echo ^|  ^<  ^| ^|/ _ \ ^| '_ \ ^|  _^| ^| ^|/ _ \ \ /\ / /  
echo ^| . \ ^| ^|  __/ ^| ^| ^| ^|^| ^|   ^| ^| ^(_) \ V  V /   
echo ^|_^|\_\^|_^|\___^|_^|_^| ^|_^|^|_^|   ^|_^|\___/ \_/\_/    
echo %ESC%[0m%ESC%[38;2;45;212;191m Portable FLUX.2 Klein Animation Studio ^| %APP_VERSION%%ESC%[0m
echo %ESC%[38;2;148;163;184m Fully portable Windows NVIDIA runtime ^| Gradio UI%ESC%[0m
echo.
set "APP_DIR=%~dp0"
set "PYTHON=%APP_DIR%portable\python\python.exe"
if not exist "%PYTHON%" set "PYTHON=%APP_DIR%portable\python\Scripts\python.exe"
set "FFMPEG_BIN=%APP_DIR%portable\ffmpeg\bin"
set "STARTUP_SPINNER=%APP_DIR%tools\startup_spinner.ps1"

if not exist "%PYTHON%" (
  echo %ESC%[38;2;239;68;68m [FAILED] KleinFlow portable runtime was not found%ESC%[0m
  echo %ESC%[38;2;100;116;139m ------------------------------------------------------------------------------%ESC%[0m
  echo.
  echo %ESC%[38;2;148;163;184m Missing:%ESC%[0m
  echo %ESC%[38;2;226;232;240m   %PYTHON%%ESC%[0m
  echo.
  echo %ESC%[38;2;249;115;22m [ACTION] Run build_kleinflow.bat to assemble the portable runtime.%ESC%[0m
  echo %ESC%[38;2;148;163;184m          Then run start.bat again.%ESC%[0m
  echo.
  powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "[System.Media.SystemSounds]::Hand.Play(); Start-Sleep -Milliseconds 900" >nul 2>nul
  pause
  exit /b 1
)
echo %ESC%[38;2;34;197;94m [1/4] Portable Python ready%ESC%[0m

if not exist "%FFMPEG_BIN%\ffmpeg.exe" (
  echo Bundled FFmpeg was not found:
  echo   %FFMPEG_BIN%\ffmpeg.exe
  echo.
  echo Restore portable\ffmpeg or rebuild the KleinFlow release folder.
  pause
  exit /b 1
)

"%FFMPEG_BIN%\ffmpeg.exe" -version >nul 2>&1
if errorlevel 1 (
  echo Bundled FFmpeg is damaged or is not a Windows executable:
  echo   %FFMPEG_BIN%\ffmpeg.exe
  echo.
  echo Restore portable\ffmpeg before starting KleinFlow.
  pause
  exit /b 1
)
echo %ESC%[38;2;34;197;94m [2/4] Bundled FFmpeg verified%ESC%[0m

set "PATH=%FFMPEG_BIN%;%APP_DIR%portable\python;%APP_DIR%portable\python\Scripts;%PATH%"
set "HF_HOME=%APP_DIR%portable\hf_home"
set "HF_HUB_CACHE=%APP_DIR%portable\hf_cache"
set "HF_HUB_OFFLINE=1"
set "TORCH_HOME=%APP_DIR%portable\torch_home"
set "XDG_CACHE_HOME=%APP_DIR%portable\cache"
set "GRADIO_ANALYTICS_ENABLED=False"
set "PYTHONNOUSERSITE=1"
set "KLEINFLOW_SESSION_LOG=%APP_DIR%logs\KleinFlow-session.log"
set "KLEINFLOW_STARTUP_STATE_FILE="

if not exist "%APP_DIR%portable\cache" mkdir "%APP_DIR%portable\cache" >nul 2>nul
if exist "%APP_DIR%portable\cache" set "KLEINFLOW_STARTUP_STATE_FILE=%APP_DIR%portable\cache\kleinflow-startup-%RANDOM%-%RANDOM%.state"
if defined KLEINFLOW_STARTUP_STATE_FILE if exist "%KLEINFLOW_STARTUP_STATE_FILE%" del /q "%KLEINFLOW_STARTUP_STATE_FILE%" >nul 2>nul
echo %ESC%[38;2;34;197;94m [3/4] Portable environment configured%ESC%[0m

cd /d "%APP_DIR%"
echo Session log will be written to:
echo   %KLEINFLOW_SESSION_LOG%
echo.
echo %ESC%[38;2;249;115;22m [4/4] Starting KleinFlow bootstrap...%ESC%[0m
if defined KLEINFLOW_STARTUP_STATE_FILE if exist "%STARTUP_SPINNER%" (
  start "" /b powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%STARTUP_SPINNER%" -StateFile "%KLEINFLOW_STARTUP_STATE_FILE%" -AppVersion "%APP_VERSION%"
)
"%PYTHON%" app.py
set "APP_EXIT=%ERRORLEVEL%"
if defined KLEINFLOW_STARTUP_STATE_FILE if not exist "%KLEINFLOW_STARTUP_STATE_FILE%" (
  >"%KLEINFLOW_STARTUP_STATE_FILE%" echo failed
  timeout /t 1 /nobreak >nul
)
if defined KLEINFLOW_STARTUP_STATE_FILE if exist "%KLEINFLOW_STARTUP_STATE_FILE%" del /q "%KLEINFLOW_STARTUP_STATE_FILE%" >nul 2>nul
pause
exit /b %APP_EXIT%