@echo off
setlocal

set "ROOT=%~dp0"
set "BACKEND_DIR=%ROOT%backend"
set "VENV_DIR=%BACKEND_DIR%\.venv"
set "VENV_PYTHON=%VENV_DIR%\Scripts\python.exe"

if /i "%~1"==":run_backend" goto run_backend
if /i "%~1"==":run_frontend" goto run_frontend

cd /d "%ROOT%"

echo [1/6] Checking Python...
set "PYTHON_CMD="
where py >nul 2>nul
if not errorlevel 1 (
  py -3 -c "import sys" >nul 2>nul
  if not errorlevel 1 set "PYTHON_CMD=py -3"
)

if not defined PYTHON_CMD (
  where python >nul 2>nul
  if not errorlevel 1 (
    python -c "import sys" >nul 2>nul
    if not errorlevel 1 set "PYTHON_CMD=python"
  )
)

if not defined PYTHON_CMD (
  echo A working Python 3 installation was not found.
  echo Install Python 3.11 or later, then make sure py -3 or python works in a new terminal.
  pause
  exit /b 1
)

echo [2/6] Checking npm...
where npm >nul 2>nul
if errorlevel 1 (
  echo npm was not found in PATH.
  echo Install Node.js, then rerun this script.
  pause
  exit /b 1
)

echo [3/6] Checking backend environment...
if exist "%BACKEND_DIR%\.env" (
  echo Found backend\.env.
  echo Source mode will still prefer local SQLite and local storage for one-click startup.
) else (
  echo backend\.env was not found.
  echo The backend will start with built-in defaults ^(SQLite, local storage, mock task flow^).
)

set "VENV_READY="
if exist "%VENV_PYTHON%" (
  "%VENV_PYTHON%" -c "import sys" >nul 2>nul
  if not errorlevel 1 set "VENV_READY=1"
)

if not defined VENV_READY (
  if exist "%VENV_DIR%" (
    echo Existing backend virtual environment is broken or stale. Recreating it...
    rmdir /s /q "%VENV_DIR%"
    if exist "%VENV_DIR%" (
      echo Failed to remove the broken backend virtual environment.
      pause
      exit /b 1
    )
  )

  echo [4/6] Creating backend virtual environment...
  %PYTHON_CMD% -m venv "%VENV_DIR%"
  if errorlevel 1 (
    echo Failed to create backend virtual environment.
    pause
    exit /b 1
  )

  echo Installing backend dependencies...
  "%VENV_PYTHON%" -m pip install --disable-pip-version-check -r "%BACKEND_DIR%\requirements.txt"
  if errorlevel 1 (
    echo Failed to install backend dependencies.
    pause
    exit /b 1
  )
) else (
  echo [4/6] Backend virtual environment already exists.
)

if not exist "%ROOT%node_modules" (
  echo [5/6] Installing frontend dependencies...
  call npm install
  if errorlevel 1 (
    echo Failed to install frontend dependencies.
    pause
    exit /b 1
  )
) else (
  echo [5/6] Frontend dependencies already exist.
)

echo [6/6] Starting backend and unified frontend...
start "AIVideo Backend" cmd /k call "%~f0" :run_backend
start "AIVideo Frontend" cmd /k call "%~f0" :run_frontend

echo.
echo User UI:   http://localhost:3000
echo Admin UI:  http://localhost:3000/admin/login
echo API:       http://localhost:8000
echo.
echo Two windows have been opened for backend and frontend.
pause
goto :eof

:run_backend
cd /d "%BACKEND_DIR%"
set "DATABASE_URL=sqlite:///./aivideo.sqlite3"
set "CELERY_TASK_ALWAYS_EAGER=true"
set "STORAGE_PROVIDER=local"
set "LOCAL_STORAGE_PATH=storage_data"
set "STORAGE_PUBLIC_BASE_URL=http://127.0.0.1:8000/storage"
"%VENV_PYTHON%" -m uvicorn app.main:app --reload --host 0.0.0.0 --port 8000
goto :eof

:run_frontend
cd /d "%ROOT%"
npm run dev
goto :eof