@echo off
setlocal EnableExtensions
cd /d "%~dp0"
if not "%~1"=="" set "CONTROLLER_URL=%~1"
set "EXIT_CODE=0"

if not exist "logs" mkdir "logs" >nul 2>nul
set "LOG_FILE=%~dp0logs\agent_start_latest.log"
if not defined PYTHONIOENCODING set "PYTHONIOENCODING=utf-8"
call :set_stamp
> "%LOG_FILE%" echo [%STAMP%] SystemTest-Agent startup
>> "%LOG_FILE%" echo Working directory: %CD%
if defined CONTROLLER_URL >> "%LOG_FILE%" echo CONTROLLER_URL=%CONTROLLER_URL%
echo Startup log: "%LOG_FILE%"

if defined PYTHON_EXE (
  if exist "%PYTHON_EXE%" (
    call :run_python "%PYTHON_EXE%" -u -m app
    goto :after_run
  ) else (
    >> "%LOG_FILE%" echo PYTHON_EXE is set but was not found: %PYTHON_EXE%
  )
)

set "CODEX_PYTHON=%USERPROFILE%\.cache\codex-runtimes\codex-primary-runtime\dependencies\python\python.exe"
if exist "%CODEX_PYTHON%" (
  call :run_python "%CODEX_PYTHON%" -u -m app
  goto :after_run
)

call :run_python python -u -m app
if not "%EXIT_CODE%"=="0" (
  call :run_python py -3 -u -m app
)

:after_run
if not "%EXIT_CODE%"=="0" (
  echo.
  echo SystemTest-Agent exited with code %EXIT_CODE%.
  echo Full log: "%LOG_FILE%"
  echo.
  echo Last log lines:
  call :show_log_tail
  echo.
  echo Common causes:
  echo   1. Controller is not reachable from this device.
  echo      Try: start_agent.bat http://^<controller-lan-ip^>:8001
  echo   2. Python 3 is not installed or not in PATH.
  echo   3. Local service port 18081 is already in use.
  echo.
)

if not "%AGENT_NO_PAUSE%"=="1" (
  echo.
  echo SystemTest-Agent stopped. Full log: "%LOG_FILE%"
  echo Press any key to close this window.
  pause >nul
)

:end
endlocal & exit /b %EXIT_CODE%

:run_python
echo. >> "%LOG_FILE%"
call :set_stamp
echo [%STAMP%] Running: %* >> "%LOG_FILE%"
%* >> "%LOG_FILE%" 2>&1
set "EXIT_CODE=%ERRORLEVEL%"
call :set_stamp
echo [%STAMP%] Exit code: %EXIT_CODE% >> "%LOG_FILE%"
exit /b 0

:set_stamp
for /f "delims=" %%I in ('powershell -NoProfile -Command "Get-Date -Format yyyy-MM-ddTHH:mm:ss"') do set "STAMP=%%I"
if not defined STAMP set "STAMP=%TIME%"
exit /b 0

:show_log_tail
powershell -NoProfile -Command "if (Test-Path -LiteralPath '%LOG_FILE%') { Get-Content -LiteralPath '%LOG_FILE%' -Tail 80 -Encoding UTF8 }"
exit /b 0