@echo off
setlocal

for %%I in ("%~dp0..") do set "SENSE_ROOT=%%~fI"
for %%I in ("%SENSE_ROOT%\dist") do set "OUTPUT_ROOT=%%~fI"
for %%I in ("%OUTPUT_ROOT%\sense-windows-amd64") do set "PACKAGE_DIR=%%~fI"
for %%I in ("%OUTPUT_ROOT%\sense-windows-amd64.zip") do set "ZIP_PATH=%%~fI"
for %%I in ("%OUTPUT_ROOT%\.sense.env.preserve") do set "PRESERVED_ENV=%%~fI"
for %%I in ("%SENSE_ROOT%\ui\dist") do set "UI_DIST=%%~fI"

if /I not "%PACKAGE_DIR%"=="%SENSE_ROOT%\dist\sense-windows-amd64" (
  echo [ERROR] Unsafe package directory: %PACKAGE_DIR%
  exit /b 1
)
if /I not "%ZIP_PATH%"=="%SENSE_ROOT%\dist\sense-windows-amd64.zip" (
  echo [ERROR] Unsafe ZIP path: %ZIP_PATH%
  exit /b 1
)
if /I not "%PRESERVED_ENV%"=="%SENSE_ROOT%\dist\.sense.env.preserve" (
  echo [ERROR] Unsafe preserved configuration path: %PRESERVED_ENV%
  exit /b 1
)

where go >nul 2>nul || goto :missing_go
for /f "tokens=3" %%V in ('go version') do set "GO_VERSION=%%V"
if not "%GO_VERSION%"=="go1.26.5" (
  echo [ERROR] Go 1.26.5 is required, found %GO_VERSION%.
  exit /b 1
)

where node >nul 2>nul || goto :missing_node
for /f "delims=" %%V in ('node --version') do set "NODE_VERSION=%%V"
if not "%NODE_VERSION%"=="v22.22.1" (
  echo [ERROR] Node.js 22.22.1 is required, found %NODE_VERSION%.
  exit /b 1
)

where corepack >nul 2>nul || goto :missing_corepack
for /f "delims=" %%V in ('corepack pnpm@9.15.1 --version') do set "PNPM_VERSION=%%V"
if not "%PNPM_VERSION%"=="9.15.1" (
  echo [ERROR] pnpm 9.15.1 is required, found %PNPM_VERSION%.
  exit /b 1
)

echo [1/5] Installing frozen frontend dependencies...
pushd "%SENSE_ROOT%\ui" || goto :failed
call corepack pnpm@9.15.1 install --frozen-lockfile || goto :failed_popd

echo [2/5] Building frontend...
call corepack pnpm@9.15.1 build || goto :failed_popd
popd

if exist "%PRESERVED_ENV%" (
  echo [ERROR] Preserved configuration already exists: %PRESERVED_ENV%
  echo Move it back to config\sense.env or remove it after confirming it is obsolete.
  exit /b 1
)
if exist "%PACKAGE_DIR%\config\sense.env" (
  copy /y "%PACKAGE_DIR%\config\sense.env" "%PRESERVED_ENV%" >nul || goto :failed
)
if exist "%PACKAGE_DIR%" rmdir /s /q "%PACKAGE_DIR%"
if exist "%ZIP_PATH%" del /q "%ZIP_PATH%"
mkdir "%PACKAGE_DIR%\config" || goto :failed

echo [3/5] Building Windows backend...
set "CGO_ENABLED=0"
set "GOOS=windows"
set "GOARCH=amd64"
pushd "%SENSE_ROOT%\server" || goto :failed
go build -trimpath -ldflags "-s -w" -o "%PACKAGE_DIR%\sense-server.exe" . || goto :failed_popd
popd

echo [4/5] Assembling package...
robocopy "%UI_DIST%" "%PACKAGE_DIR%\ui" /E /NFL /NDL /NJH /NJS /NP >nul
if errorlevel 8 goto :failed
robocopy "%SENSE_ROOT%\LICENSES" "%PACKAGE_DIR%\LICENSES" /E /NFL /NDL /NJH /NJS /NP >nul
if errorlevel 8 goto :failed
copy /y "%SENSE_ROOT%\config\sense.env.example" "%PACKAGE_DIR%\config\sense.env.example" >nul || goto :failed
copy /y "%SENSE_ROOT%\scripts\runtime\start-sense.bat" "%PACKAGE_DIR%\start-sense.bat" >nul || goto :failed
copy /y "%SENSE_ROOT%\scripts\runtime\start-sense.ps1" "%PACKAGE_DIR%\start-sense.ps1" >nul || goto :failed
copy /y "%SENSE_ROOT%\scripts\runtime\README-WINDOWS.md" "%PACKAGE_DIR%\README-WINDOWS.md" >nul || goto :failed

echo [5/5] Creating ZIP...
powershell -NoProfile -ExecutionPolicy Bypass -Command "Compress-Archive -Path '%PACKAGE_DIR%' -DestinationPath '%ZIP_PATH%' -Force" || goto :failed
if exist "%PRESERVED_ENV%" (
  move /y "%PRESERVED_ENV%" "%PACKAGE_DIR%\config\sense.env" >nul || goto :failed
)

echo.
echo Package directory: %PACKAGE_DIR%
echo ZIP archive:       %ZIP_PATH%
exit /b 0

:failed_popd
popd
:failed
echo [ERROR] Packaging failed.
exit /b 1

:missing_go
echo [ERROR] Go was not found in PATH.
exit /b 1

:missing_node
echo [ERROR] Node.js was not found in PATH.
exit /b 1

:missing_corepack
echo [ERROR] Corepack was not found in PATH.
exit /b 1