@echo off
REM ============================================================
REM  autostart-run.bat - launcher used by the scheduled task
REM  created by install-autostart.bat. Runs in a VISIBLE console
REM  window (install-autostart.bat registers it at logon, as the
REM  current user, so the window is visible - unlike a hidden
REM  SYSTEM/boot task). It reads the password from webvnc.conf,
REM  WAITS for the VNC server on 127.0.0.1:5900 (the UltraVNC
REM  service may still be starting), and only then starts
REM  web-vnc.exe in the foreground. If no VNC server comes up,
REM  it spawns a local one. On any fatal error it pauses so the
REM  window stays open and you can read why it did not start.
REM
REM  This script lives in scripts/ but operates relative to the
REM  REPO ROOT (web-vnc.exe, webvnc.conf, vnc\, ./cmd/web-vnc are
REM  there), so it cd's to %~dp0.. first.
REM  Exit codes: 0 = server ran and stopped; 1 = no binary;
REM              2 = password not configured; other = web-vnc error.
REM ============================================================
title web-vnc autostart
cd /d "%~dp0.."

echo.
echo === web-vnc autostart ===
echo Working dir: %CD%
echo.

REM --- 1. Binary (build if Go is available, else fail) ---
if exist "web-vnc.exe" goto havebin
where go >nul 2>nul
if errorlevel 1 goto nobinary
echo Building web-vnc.exe ...
go build -o web-vnc.exe .\cmd\web-vnc
if errorlevel 1 goto nobinary
:havebin
if not exist "web-vnc.exe" goto nobinary

REM --- 2. Stored password ---
if not exist "webvnc.conf" goto noconf
set "HASH="
set "VNC_PW="
for /f "tokens=1,* delims==" %%a in (webvnc.conf) do (
  if /i "%%a"=="HASH" set "HASH=%%b"
  if /i "%%a"=="VNC_PASSWORD" set "VNC_PW=%%b"
)
if "%HASH%"=="" goto noconf
if "%VNC_PW%"=="" goto noconf
set "WEBVNC_VNC_PASSWORD=%VNC_PW%"
set "VNC_PW="

REM --- 3. Wait for the VNC server on 127.0.0.1:5900 ---
REM     At boot/logon the UltraVNC service may still be starting.
REM     Poll up to ~30 s (one PowerShell process loops internally) so we do
REM     NOT spawn a 2nd server and do NOT serve before the VNC server is
REM     ready. Exits 0 as soon as 5900 accepts a connection, 1 on timeout.
echo Waiting for VNC server on 127.0.0.1:5900 (up to 30 s) ...
powershell -NoProfile -Command "for($i=0;$i -lt 30;$i++){try{$c=New-Object Net.Sockets.TcpClient('127.0.0.1',5900);$c.Close();exit 0}catch{};Start-Sleep -Seconds 1};exit 1"
if not errorlevel 1 goto vnc_up

:vnc_down
echo VNC server is not up after the wait.
set "SPAWN_CMD="
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"
if defined SPAWN_CMD goto have_spawn
set "SPAWNARGS="
set "SPAWNFLAG=--spawn"
echo No local VNC server; web-vnc will auto-detect and spawn one.
goto launch
:have_spawn
set "SPAWNARGS=--spawn-command "%SPAWN_CMD%""
set "SPAWNFLAG=--spawn"
echo Starting local VNC server: %SPAWN_CMD%
goto launch

:vnc_up
echo VNC server is up - connecting to it without --spawn.
set "SPAWNARGS="
set "SPAWNFLAG="

:launch
REM --- 4. Launch (foreground; the console window stays open while it serves) ---
echo.
echo Starting web-vnc on http://localhost:8080
echo Close this window to stop it.
echo.
web-vnc.exe --password-hash "%HASH%" %SPAWNARGS% %SPAWNFLAG% --listen :8080
echo.
echo Server stopped (exit code %errorlevel%).
pause
exit /b

:nobinary
echo.
echo [error] web-vnc.exe not found and could not be built.
echo Build it once with: go build -o web-vnc.exe .\cmd\web-vnc
echo or run run.bat interactively.
pause
exit /b 1

:noconf
echo.
echo [error] webvnc.conf not found. Run set-password.bat first to set the password.
pause
exit /b 2