@echo off
setlocal

REM -- Strip trailing backslash from %~dp0 to avoid "Illegal characters in path" --
set "ROOT=%~dp0"
if "%ROOT:~-1%"=="\" set "ROOT=%ROOT:~0,-1%"

REM -- If a local ffmpeg folder exists inside the addon, prepend it to PATH --
REM    This ensures the PS1 script's Find-Ffmpeg can discover it even if
REM    it isn't on the system PATH yet.
if exist "%ROOT%\ffmpeg\ffmpeg.exe" (
    set "PATH=%ROOT%\ffmpeg;%PATH%"
)

REM -- Check for -UseWinRAR flag --
set "PS_ARGS=-NoProfile -ExecutionPolicy Bypass -File "%ROOT%\GeneratePlaylist.ps1" -RootPath "%ROOT%""
if "%1"=="-UseWinRAR" (
    set "PS_ARGS=-NoProfile -ExecutionPolicy Bypass -File "%ROOT%\GeneratePlaylist.ps1" -RootPath "%ROOT%" -UseWinRAR"
)
if "%1"=="-usewinrar" (
    set "PS_ARGS=-NoProfile -ExecutionPolicy Bypass -File "%ROOT%\GeneratePlaylist.ps1" -RootPath "%ROOT%" -UseWinRAR"
)

powershell %PS_ARGS%
set "ERR=%ERRORLEVEL%"

if not "%ERR%"=="0" (
  echo.
  echo GeneratePlaylist failed with exit code %ERR%.
  echo.
  echo Trying fallback download method...
  echo.

  REM -- Fallback: Use bitsadmin or certutil to download ffmpeg if needed --
  REM -- This provides at least some progress output when PowerShell fails --

  set "FFMPEG_DIR=%ROOT%\ffmpeg"
  if not exist "%FFMPEG_DIR%\ffmpeg.exe" (
    echo ffmpeg not found. Attempting fallback download...
    echo.

    set "DL_DIR=%ROOT%\ffmpeg_download"
    if not exist "%DL_DIR%" mkdir "%DL_DIR%"

    REM -- Try bitsadmin (available on most Windows systems) --
    where bitsadmin >nul 2>nul
    if %ERRORLEVEL%==0 (
      echo Using bitsadmin to download ffmpeg...
      echo This may take several minutes depending on your connection.
      echo.
      bitsadmin /transfer "ffmpeg_download" /priority normal "https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.zip" "%DL_DIR%\ffmpeg.zip"
      if exist "%DL_DIR%\ffmpeg.zip" (
        echo.
        echo Download complete. Extracting ffmpeg.zip with PowerShell...
        powershell -NoProfile -Command "Expand-Archive -LiteralPath '%DL_DIR%\ffmpeg.zip' -DestinationPath '%DL_DIR%\extracted' -Force; $bin = Get-ChildItem '%DL_DIR%\extracted' -Recurse -Directory -Filter 'bin' | Select-Object -First 1; if ($bin) { if (-not (Test-Path '%FFMPEG_DIR%')) { New-Item -ItemType Directory -Path '%FFMPEG_DIR%' -Force | Out-Null }; Copy-Item (Join-Path $bin.FullName 'ffmpeg.exe') '%FFMPEG_DIR%\' -Force -ErrorAction SilentlyContinue; Copy-Item (Join-Path $bin.FullName 'ffprobe.exe') '%FFMPEG_DIR%\' -Force -ErrorAction SilentlyContinue }; Remove-Item '%DL_DIR%\extracted' -Recurse -Force -ErrorAction SilentlyContinue; Remove-Item '%DL_DIR%\ffmpeg.zip' -Force -ErrorAction SilentlyContinue"
        if exist "%FFMPEG_DIR%\ffmpeg.exe" (
          echo ffmpeg installed successfully via fallback.
        ) else (
          echo WARNING: Fallback extraction may not have completed successfully.
        )
      ) else (
        echo bitsadmin download failed.
      )
    ) else (
      echo bitsadmin not available on this system.
      echo.
      echo Please install ffmpeg manually:
      echo   1. Download from https://www.gyan.dev/ffmpeg/builds/
      echo   2. Extract ffmpeg.exe and ffprobe.exe
      echo   3. Place them in: %FFMPEG_DIR%
    )
  )

  echo.
  echo Trying to generate playlist without PowerShell...
  echo.

  REM -- Minimal fallback: just scan Media folder and write AutoPlaylist.lua --
  REM -- This works without ffmpeg but uses estimated durations --
  if exist "%ROOT%\Media" (
    echo Scanning Media folder for audio files...
    set "OUTFILE=%ROOT%\AutoPlaylist.lua"
    echo RelationshipsJukeboxAutoPlaylist = {} > "%OUTFILE%"
    echo RelationshipsJukeboxAutoPlaylist.tracks = { >> "%OUTFILE%"
    for /r "%ROOT%\Media" %%F in (*.mp3 *.wav *.ogg) do (
      setlocal enabledelayedexpansion
      REM Get the full path of the file
      set "FULLFILE=%%F"
      REM Strip the ROOT prefix to get a relative path like \Media\song.mp3
      set "RELPATH=!FULLFILE:%ROOT%=!"
      REM Build the WoW-relative path: Interface\AddOns\RelationshipsJukeBox\Media\song.mp3
      REM RELPATH starts with \ (from the remaining path after stripping ROOT)
      set "FULLPATH=Interface\AddOns\RelationshipsJukeBox!RELPATH!"
      REM Double all backslashes for Lua string escaping (\\ in source = \ in Lua value)
      set "FULLPATH=!FULLPATH:\=\\!"
      set "BASENAME=%%~nF"
      echo     { path = "!FULLPATH!", name = "!BASENAME!", duration = 180 }, >> "%OUTFILE%"
      endlocal
      echo   Found: %%~nF
    )
    echo } >> "%OUTFILE%"
    echo.
    echo Playlist generated (using estimated 180s durations).
    echo Install ffmpeg for accurate durations and MP3 sanitization.
  ) else (
    echo Media folder not found: %ROOT%\Media
  )

  echo.
  echo Usage: GeneratePlaylist.bat [-UseWinRAR]
  echo   -UseWinRAR   Prefer WinRAR over 7-Zip for archive extraction
  pause
  exit /b %ERR%
)

echo.
echo Playlist entries now include names and durations for Play All / Shuffle.
echo Autoplay and Shuffle work even without metadata - estimated durations are used.
echo.
echo Tip: Run with -UseWinRAR flag to use WinRAR for archive extraction:
echo   GeneratePlaylist.bat -UseWinRAR
pause