@echo off
setlocal
chcp 65001 >nul

cd /d "%~dp0"
set "SPEC_FILE=client_agent_v2_windows_onefile.spec"
set "CLIENT_DIR=dist\Inv_web Client"
set "CLIENT_EXE=%CLIENT_DIR%\Inv_web Client.exe"
set "INSTALLER_SCRIPT=client_agent_v2_installer.iss"
set "RUSTDESK_INSTALLER=installer\prerequisites\rustdesk.exe"
set "ISCC=%ProgramFiles(x86)%\Inno Setup 6\ISCC.exe"

if not exist "%SPEC_FILE%" (
  echo Spec file not found: %SPEC_FILE%
  goto :fail
)

if not exist "%INSTALLER_SCRIPT%" (
  echo Installer script not found: %INSTALLER_SCRIPT%
  goto :fail
)

if not exist "%RUSTDESK_INSTALLER%" (
  echo.
  echo ERROR: RustDesk installer was not found.
  echo Download the Windows x64 RustDesk installer, rename it to rustdesk.exe and place it here:
  echo %~dp0%RUSTDESK_INSTALLER%
  goto :fail
)

if not exist "installer\configure_rustdesk.ps1" (
  echo RustDesk configuration script not found: installer\configure_rustdesk.ps1
  goto :fail
)

echo Checking RustDesk configuration script...
powershell.exe -NoProfile -NonInteractive -Command "$parseTokens = $null; $parseErrors = $null; [void][System.Management.Automation.Language.Parser]::ParseFile((Resolve-Path 'installer\configure_rustdesk.ps1'), [ref]$parseTokens, [ref]$parseErrors); if ($parseErrors.Count -gt 0) { foreach ($parseError in $parseErrors) { Write-Host $parseError }; exit 1 }"
if errorlevel 1 goto :fail

if not exist "%ISCC%" set "ISCC=%ProgramFiles%\Inno Setup 6\ISCC.exe"
if not exist "%ISCC%" set "ISCC=%LocalAppData%\Programs\Inno Setup 6\ISCC.exe"
if not exist "%ISCC%" for /f "delims=" %%I in ('where ISCC.exe 2^>nul') do set "ISCC=%%I"
if not exist "%ISCC%" (
  where winget >nul 2>nul
  if not errorlevel 1 (
    echo Inno Setup 6 was not found. Installing it with winget...
    winget install --id JRSoftware.InnoSetup -e --silent --accept-package-agreements --accept-source-agreements
  )
)
if not exist "%ISCC%" set "ISCC=%ProgramFiles(x86)%\Inno Setup 6\ISCC.exe"
if not exist "%ISCC%" set "ISCC=%ProgramFiles%\Inno Setup 6\ISCC.exe"
if not exist "%ISCC%" set "ISCC=%LocalAppData%\Programs\Inno Setup 6\ISCC.exe"
if not exist "%ISCC%" for /f "delims=" %%I in ('where ISCC.exe 2^>nul') do set "ISCC=%%I"
if not exist "%ISCC%" (
  echo.
  echo ERROR: Inno Setup 6 is not installed.
  echo Install it from: https://jrsoftware.org/isdl.php
  echo Then run this BAT file again.
  goto :fail
)

echo Inno Setup compiler: %ISCC%

rem The Python Install Manager runtime does not include Tcl/Tk. Use the
rem classic CPython 3.13 distribution, which includes the complete Tk runtime.
call :find_build_python

if not defined BUILD_PYTHON (
  where winget >nul 2>nul
  if errorlevel 1 (
    echo.
    echo ERROR: Classic Python 3.13 with Tcl/Tk is not installed.
    echo Install it with Tcl/Tk support from: https://www.python.org/downloads/windows/
    goto :fail
  )

  echo Classic Python 3.13 with Tcl/Tk was not found. Installing it with winget...
  winget install --id Python.Python.3.13 -e --scope user --silent --accept-package-agreements --accept-source-agreements
  if errorlevel 1 goto :fail
)

call :find_build_python
if not defined BUILD_PYTHON (
  echo Python 3.13 was installed, but python.exe was not found in a standard location.
  echo Check the Python installation or install Python 3.13 manually with Tcl/Tk support.
  goto :fail
)

"%BUILD_PYTHON%" -c "import tkinter; t = tkinter.Tcl(); print(t.eval('info library'))"
if errorlevel 1 (
  echo The detected Python does not have a working Tcl/Tk installation:
  echo %BUILD_PYTHON%
  echo Reinstall classic Python 3.13 and enable the Tcl/Tk component.
  goto :fail
)

for %%I in ("%BUILD_PYTHON%") do set "PYTHON_BASE=%%~dpI"

set "TCL_LIBRARY="
for /d %%D in ("%PYTHON_BASE%tcl\tcl*") do if exist "%%~fD\init.tcl" set "TCL_LIBRARY=%%~fD"
set "TK_LIBRARY="
for /d %%D in ("%PYTHON_BASE%tcl\tk*") do if exist "%%~fD\tk.tcl" set "TK_LIBRARY=%%~fD"

if not defined TCL_LIBRARY (
  echo Tcl runtime was not found under: %PYTHON_BASE%tcl
  echo Reinstall classic Python 3.13 and enable the Tcl/Tk component.
  goto :fail
)
if not defined TK_LIBRARY (
  echo Tk runtime was not found under: %PYTHON_BASE%tcl
  echo Reinstall classic Python 3.13 and enable the Tcl/Tk component.
  goto :fail
)

echo Build Python: %BUILD_PYTHON%
echo Tcl runtime: %TCL_LIBRARY%
echo Tk runtime:  %TK_LIBRARY%

echo Installing Python build dependencies...
"%BUILD_PYTHON%" -m pip install --upgrade "pyinstaller>=6.18" pystray pillow
if errorlevel 1 goto :fail

echo Building client executable...
"%BUILD_PYTHON%" -m PyInstaller --clean --noconfirm "%SPEC_FILE%"
if errorlevel 1 goto :fail

if not exist "%CLIENT_EXE%" (
  echo Client executable was not created: %CLIENT_EXE%
  goto :fail
)

if not exist "%CLIENT_DIR%\_internal\_tcl_data\init.tcl" (
  echo Tcl data was not included in the client build.
  goto :fail
)

if not exist "%CLIENT_DIR%\_internal\_tk_data\tk.tcl" (
  echo Tk data was not included in the client build.
  goto :fail
)

echo Testing the packaged client runtime...
start "" /wait "%CLIENT_EXE%" --help
if errorlevel 1 (
  echo The packaged client failed its startup test.
  goto :fail
)

echo Building Windows installer...
"%ISCC%" "%INSTALLER_SCRIPT%"
if errorlevel 1 goto :fail

echo.
echo Done: %~dp0dist\Inv_web_Client_Setup.exe
exit /b 0

:fail
echo.
echo ============================================================
echo BUILD FAILED. Review the error messages above.
echo The window will remain open so the error can be copied.
echo ============================================================
echo.
pause
exit /b 1

:find_build_python
set "BUILD_PYTHON="

if exist "%LocalAppData%\Programs\Python\Python313\python.exe" set "BUILD_PYTHON=%LocalAppData%\Programs\Python\Python313\python.exe"
if not defined BUILD_PYTHON if exist "%ProgramFiles%\Python313\python.exe" set "BUILD_PYTHON=%ProgramFiles%\Python313\python.exe"

if not defined BUILD_PYTHON (
  for /d %%D in ("%LocalAppData%\Programs\Python\Python313*") do if exist "%%~fD\python.exe" set "BUILD_PYTHON=%%~fD\python.exe"
)
if not defined BUILD_PYTHON (
  for /d %%D in ("%ProgramFiles%\Python313*") do if exist "%%~fD\python.exe" set "BUILD_PYTHON=%%~fD\python.exe"
)

if not defined BUILD_PYTHON (
  for /f "tokens=2,*" %%A in ('reg query "HKCU\Software\Python\PythonCore\3.13\InstallPath" /v ExecutablePath 2^>nul') do if /I "%%A"=="REG_SZ" set "BUILD_PYTHON=%%B"
)
if not defined BUILD_PYTHON (
  for /f "tokens=2,*" %%A in ('reg query "HKCU\Software\Python\PythonCore\3.13-64\InstallPath" /v ExecutablePath 2^>nul') do if /I "%%A"=="REG_SZ" set "BUILD_PYTHON=%%B"
)
if not defined BUILD_PYTHON (
  for /f "tokens=2,*" %%A in ('reg query "HKLM\Software\Python\PythonCore\3.13\InstallPath" /v ExecutablePath 2^>nul') do if /I "%%A"=="REG_SZ" set "BUILD_PYTHON=%%B"
)
if not defined BUILD_PYTHON (
  for /f "tokens=2,*" %%A in ('reg query "HKLM\Software\Python\PythonCore\3.13-64\InstallPath" /v ExecutablePath 2^>nul') do if /I "%%A"=="REG_SZ" set "BUILD_PYTHON=%%B"
)
if not defined BUILD_PYTHON (
  for /f "delims=" %%I in ('py -3.13 -c "import sys; print(sys.executable)" 2^>nul') do set "BUILD_PYTHON=%%I"
)

if defined BUILD_PYTHON if not exist "%BUILD_PYTHON%" set "BUILD_PYTHON="
exit /b 0