@echo off
setlocal EnableExtensions
title GSP Windows Agent

whoami /groups | find "S-1-16-12288" >nul 2>&1
if not "%errorLevel%" == "0" (
	echo Failure: current permissions are inadequate.
	echo.
	echo Run this script with "Run as administrator".
	call :pause_on_error
	exit /b 1
)

set "WD=%~dp0"
pushd "%WD%" >nul 2>&1
set "START_LOG_NATIVE="

set "BASH_EXE="
set "CYGWIN_ROOT="

if exist "%WD%bin\bash.exe" (
	set "BASH_EXE=%WD%bin\bash.exe"
	set "CYGWIN_ROOT=%WD%"
)
if not defined BASH_EXE if exist "%WD%..\bin\bash.exe" (
	set "BASH_EXE=%WD%..\bin\bash.exe"
	for %%I in ("%WD%..") do set "CYGWIN_ROOT=%%~fI\"
)
if not defined BASH_EXE if exist "%WD%..\..\bin\bash.exe" (
	set "BASH_EXE=%WD%..\..\bin\bash.exe"
	for %%I in ("%WD%..\..") do set "CYGWIN_ROOT=%%~fI\"
)
if not defined BASH_EXE if exist "C:\OGP64\bin\bash.exe" (
	set "BASH_EXE=C:\OGP64\bin\bash.exe"
	set "CYGWIN_ROOT=C:\OGP64\"
)
if not defined BASH_EXE if exist "C:\cygwin64\bin\bash.exe" (
	set "BASH_EXE=C:\cygwin64\bin\bash.exe"
	set "CYGWIN_ROOT=C:\cygwin64\"
)
if not defined BASH_EXE if exist "C:\cygwin\bin\bash.exe" (
	set "BASH_EXE=C:\cygwin\bin\bash.exe"
	set "CYGWIN_ROOT=C:\cygwin\"
)

if not defined BASH_EXE (
	echo Failure: Cygwin bash.exe was not found.
	echo.
	echo Checked:
	echo   %WD%bin\bash.exe
	echo   %WD%..\bin\bash.exe
	echo   %WD%..\..\bin\bash.exe
	echo   C:\OGP64\bin\bash.exe
	echo   C:\cygwin64\bin\bash.exe
	echo   C:\cygwin\bin\bash.exe
	call :pause_on_error
	exit /b 1
)

if not exist "%CYGWIN_ROOT%OGP\ogp_agent.pl" (
	echo Failure: OGP agent root was not found for detected Cygwin root.
	echo.
	echo Detected Cygwin root:
	echo   %CYGWIN_ROOT%
	echo Expected agent file:
	echo   %CYGWIN_ROOT%OGP\ogp_agent.pl
	call :pause_on_error
	exit /b 1
)

set "START_LOG_NATIVE=%CYGWIN_ROOT%var\log\gsp_agent_start.log"
if not exist "%CYGWIN_ROOT%var\log" mkdir "%CYGWIN_ROOT%var\log" >nul 2>&1

set "PATH=%CYGWIN_ROOT%bin;%CYGWIN_ROOT%usr\sbin;%PATH%"
set "CYGWIN=server ntsec"
set "SHELL=/bin/bash"
set "GSP_AGENT_START_LOG_NATIVE=%START_LOG_NATIVE%"
set "GSP_AGENT_CYGWIN_ROOT=%CYGWIN_ROOT%"

set "HELPER=/Install/agent_start_cygwin.sh"
if exist "%CYGWIN_ROOT%OGP\Install\agent_start_cygwin.sh" set "HELPER=/OGP/Install/agent_start_cygwin.sh"
if not exist "%CYGWIN_ROOT%Install\agent_start_cygwin.sh" if not exist "%CYGWIN_ROOT%OGP\Install\agent_start_cygwin.sh" (
	echo Failure: agent_start_cygwin.sh was not found.
	echo.
	echo Expected one of:
	echo   %CYGWIN_ROOT%Install\agent_start_cygwin.sh
	echo   %CYGWIN_ROOT%OGP\Install\agent_start_cygwin.sh
	call :pause_on_error
	exit /b 1
)

echo Detected startup paths:
echo   Script directory: %WD%
echo   Cygwin root:      %CYGWIN_ROOT%
echo   bash.exe:         %BASH_EXE%
echo   OGP path:         %CYGWIN_ROOT%OGP
echo   ogp_agent.pl:     %CYGWIN_ROOT%OGP\ogp_agent.pl
echo   Config path:      %CYGWIN_ROOT%OGP\Cfg
echo   Startup log:      %START_LOG_NATIVE%
echo.
if exist "%START_LOG_NATIVE%" (
	del /q "%START_LOG_NATIVE%" >nul 2>&1
)

rem Stop any existing agent processes whose PID files still exist.
if exist "%CYGWIN_ROOT%var\run\pure-ftpd.pid" set /p PID1=<"%CYGWIN_ROOT%var\run\pure-ftpd.pid"
if exist "%CYGWIN_ROOT%OGP\ogp_agent.pid" set /p PID2=<"%CYGWIN_ROOT%OGP\ogp_agent.pid"
if exist "%CYGWIN_ROOT%OGP\ogp_agent_run.pid" set /p PID3=<"%CYGWIN_ROOT%OGP\ogp_agent_run.pid"
if defined PID1 kill -15 %PID1% >nul 2>&1
if defined PID2 kill -15 %PID2% >nul 2>&1
if defined PID3 kill -15 %PID3% >nul 2>&1

echo Starting GSP Windows Agent with:
echo   %BASH_EXE%
echo.
"%BASH_EXE%" --login "%HELPER%" /OGP/ogp_agent_run.pid
set "AGENT_EXIT=%ERRORLEVEL%"

if not "%AGENT_EXIT%" == "0" (
	echo.
	echo GSP Windows Agent exited with error code %AGENT_EXIT%.
	echo.
	echo ===== Last 100 lines of startup log: %START_LOG_NATIVE% =====
	if exist "%START_LOG_NATIVE%" (
		powershell -NoProfile -ExecutionPolicy Bypass -Command "Get-Content -LiteralPath '%START_LOG_NATIVE%' -Tail 100" 2>nul
	) else (
		echo Startup log was not created.
	)
	call :pause_on_error
	exit /b %AGENT_EXIT%
)

popd >nul 2>&1
exit /b 0

:pause_on_error
if /I not "%GSP_AGENT_NO_PAUSE%"=="1" pause
exit /b 0