@echo off
setlocal enabledelayedexpansion

set "SCRIPT_DIR=%~dp0"
:: %~dp0 always ends with \ which breaks cmake quoting ("path\" escapes the quote)
set "SCRIPT_DIR=%SCRIPT_DIR:~0,-1%"
set "BUILD_DIR=%SCRIPT_DIR%\build"

:: -- Compiler detection (with vswhere fallback for MSVC) --------------------

set "HAS_COMPILER=0"
where g++ >nul 2>&1 && set "HAS_COMPILER=1"
where clang++ >nul 2>&1 && set "HAS_COMPILER=1"
where cl >nul 2>&1 && set "HAS_COMPILER=1"
if "%HAS_COMPILER%"=="1" goto :compiler_ok

set "VSWHERE=%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
if not exist "%VSWHERE%" goto :compiler_ok

for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -latest -property installationPath`) do (
    set "VS_PATH=%%i"
)
if not defined VS_PATH goto :compiler_ok

set "VCVARS=!VS_PATH!\VC\Auxiliary\Build\vcvarsall.bat"
if not exist "!VCVARS!" goto :compiler_ok

echo Setting up MSVC environment...
call "!VCVARS!" x64 >nul 2>&1

:compiler_ok

:: -- Build and test ---------------------------------------------------------

if "%1"=="--clean" (
    if exist "%BUILD_DIR%" (
        echo Cleaning build directory...
        rmdir /s /q "%BUILD_DIR%"
    )
)

if not exist "%BUILD_DIR%\CMakeCache.txt" (
    echo Configuring test build. First run will fetch Google Test...
    cmake -S "%SCRIPT_DIR%" -B "%BUILD_DIR%" -DCMAKE_BUILD_TYPE=Debug
    if errorlevel 1 (
        echo FAIL: cmake configure failed.
        echo   cmake and a C++ compiler are required for host-side tests.
        echo   Run 'anvil doctor' to see install instructions.
        exit /b 1
    )
)

echo Building tests...
cmake --build "%BUILD_DIR%" --parallel
if errorlevel 1 (
    echo FAIL: build failed
    exit /b 1
)

echo.
echo Running tests...
echo.

ctest --test-dir "%BUILD_DIR%" --output-on-failure
if errorlevel 1 (
    echo.
    echo FAIL: Some tests failed.
    exit /b 1
)

echo.
echo PASS: All tests passed.