@echo off
setlocal
title Install ws2tcp-local

fltmc >nul 2>&1
if errorlevel 1 (
    echo Please right-click this file and choose "Run as administrator".
    pause
    exit /b 1
)

set "MANIFEST=https://wangguofang.net/ws2tcp-local/releases/latest.json"
set "INSTALLER=%TEMP%\ws2tcp-local-setup.exe"

echo Looking up the latest ws2tcp-local release...
set "URL="
for /f "usebackq delims=" %%U in (`powershell -NoProfile -ExecutionPolicy Bypass -Command "(Invoke-RestMethod -UseBasicParsing '%MANIFEST%').windows_url"`) do set "URL=%%U"
if not defined URL (
    echo Could not read the download URL from %MANIFEST%.
    pause
    exit /b 1
)

echo Downloading %URL%...
curl.exe -fL --retry 3 -o "%INSTALLER%" "%URL%"
if errorlevel 1 (
    echo Download failed.
    pause
    exit /b 1
)

echo Installing ws2tcp-local...
"%INSTALLER%" /S
set "RC=%ERRORLEVEL%"
del "%INSTALLER%" >nul 2>&1

if "%RC%"=="0" (
    call :desktop_shortcut
    echo Done.
) else (
    echo The installer exited with code %RC%.
)
pause
exit /b %RC%

:desktop_shortcut
rem The silent installer skips its "Create desktop shortcut" option.
set "EXE=%ProgramFiles%\ws2tcp-local\bin\ws2tcp-local-gui.exe"
if not exist "%EXE%" (
    echo Could not find %EXE%, skipping the desktop shortcut.
    exit /b 0
)
powershell -NoProfile -ExecutionPolicy Bypass -Command "$s=(New-Object -ComObject WScript.Shell).CreateShortcut([Environment]::GetFolderPath('CommonDesktopDirectory')+'\ws2tcp-local.lnk'); $s.TargetPath=$env:EXE; $s.WorkingDirectory=Split-Path $env:EXE; $s.Save()"
exit /b 0