@echo off
REM ============================================================
REM  web-vnc launcher - one-click start, asks only for the password.
REM ============================================================
cd /d "%~dp0"

echo.
echo === web-vnc: VNC in the browser ===
echo.

REM --- 1. Binary ---
if exist "web-vnc.exe" goto havebin
where go >nul 2>nul
if not errorlevel 1 goto dogobuild
echo [error] web-vnc.exe not found and Go is not installed.
echo Install Go from https://go.dev/dl/ or place a built web-vnc.exe next to this script.
echo.
pause
exit /b 1
:dogobuild
echo Building web-vnc.exe ...
go build -o web-vnc.exe .\cmd\web-vnc
if errorlevel 1 goto buildfail
:havebin

REM --- 2. noVNC client ---
if exist "internal\server\static\core\rfb.js" goto havenovnc
echo noVNC client is not bundled yet. Trying to download ...
powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\get-novnc.ps1"
if errorlevel 1 goto novncfail
echo Rebuilding with noVNC ...
go build -o web-vnc.exe .\cmd\web-vnc
goto havenovnc
:novncfail
echo [warning] Could not download noVNC (no internet?).
echo The browser will open a page with a hint. Retry later: scripts\get-novnc.ps1
echo.
:havenovnc

REM --- 3. VNC server (find/download) ---
set "SPAWNARGS="
set "SPAWN_CMD="
if exist "vnc\winvnc.exe" goto uselocalvnc
if exist "vnc\tvnserver.exe" goto uselocalvnc
if exist "C:\Program Files\UltraVNC\winvnc.exe" goto autodetectvnc
if exist "C:\Program Files (x86)\UltraVNC\winvnc.exe" goto autodetectvnc
if exist "C:\Program Files\uvnc bvba\UltraVNC\winvnc.exe" goto autodetectvnc
if exist "C:\Program Files (x86)\uvnc bvba\UltraVNC\winvnc.exe" goto autodetectvnc
if exist "C:\Program Files\TightVNC\tvnserver.exe" goto autodetectvnc
if exist "C:\Program Files (x86)\TightVNC\tvnserver.exe" goto autodetectvnc
echo VNC server not found. Trying to download a portable UltraVNC ...
powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\get-vnc.ps1"
if errorlevel 1 goto novncserver
if exist "vnc\winvnc.exe" goto uselocalvnc
if exist "vnc\tvnserver.exe" goto uselocalvnc
goto novncserver
:uselocalvnc
if exist "vnc\winvnc.exe" set "SPAWN_CMD=vnc\winvnc.exe -run"
if exist "vnc\tvnserver.exe" if not defined SPAWN_CMD set "SPAWN_CMD=vnc\tvnserver.exe -run"
set "SPAWNARGS=--spawn-command "%SPAWN_CMD%""
echo Found local VNC server: %SPAWN_CMD%
goto vncdone
:autodetectvnc
echo VNC server found in the system (auto-detection on start).
goto vncdone
:novncserver
echo [warning] Could not get a VNC server.
echo Without a VNC server the desktop will not be streamed.
echo Install UltraVNC/TightVNC manually or retry: scripts\get-vnc.ps1
echo.
:vncdone

REM --- 4. Password ---
:getpw
set "PW="
set /p "PW=Enter access password: "
if "%PW%"=="" goto emptypw
goto gotpw
:emptypw
echo Password cannot be empty.
goto getpw
:gotpw

REM --- 4b. Sync UltraVNC password with the one entered (only when it differs) ---
echo Syncing UltraVNC password with the one entered. It will ask for admin rights if they differ...
powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\ensure-vnc-password.ps1" -Password "%PW%"
if errorlevel 1 echo [warning] Could not sync the UltraVNC password - continuing.

REM --- 5. Password hash + same password for the VNC server ---
echo Generating password hash ...
for /f "delims=" %%i in ('web-vnc.exe --gen-hash "%PW%"') do set "HASH=%%i"
if "%HASH%"=="" goto hashfail
REM The same password is auto-sent to noVNC to authenticate against the VNC server.
set "WEBVNC_VNC_PASSWORD=%PW%"
set "PW="

REM --- 6. Available addresses ---
echo.
echo === Addresses to connect to (port 8080) ===
echo   http://localhost:8080
for /f "delims=" %%a in ('powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\list-ips.ps1"') do echo   http://%%a:8080
echo.
echo If it does not open from another machine, run once as administrator:
echo   scripts\open-firewall.bat
echo.

REM --- 7. Launch ---
echo Starting web-vnc on http://localhost:8080
echo Stop: Ctrl+C
echo.
REM --- 6b. 5900 already listening? -> do NOT spawn a 2nd VNC server (avoid conflict with the UltraVNC service) ---
set "SPAWNFLAG=--spawn"
powershell -NoProfile -Command "try{$c=New-Object Net.Sockets.TcpClient('127.0.0.1',5900);$c.Close();exit 0}catch{exit 1}"
if not errorlevel 1 (
  echo VNC server already listening on 127.0.0.1:5900 - connecting to it without --spawn.
  set "SPAWNFLAG="
)
web-vnc.exe --password-hash "%HASH%" %SPAWNARGS% %SPAWNFLAG% --listen :8080
echo.
echo Server stopped.
pause
exit /b

:buildfail
echo Build failed.
pause
exit /b 1

:hashfail
echo [error] Could not generate the password hash.
pause
exit /b 1