@echo off
REM RinHash CUDA Build Script
REM This script attempts to build the CUDA implementation of RinHash

echo ======================================
echo   RinHash CUDA Miner Build Script
echo ======================================

REM Check if NVCC is available
where nvcc >nul 2>nul
if errorlevel 1 (
    echo ERROR: NVCC not found in PATH
    echo Please install CUDA Toolkit
    goto :error
)

echo NVCC found: 
nvcc --version
echo.

REM Try to find Visual Studio
set "VS2019_PATH=C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvars64.bat"
set "VS2022_PATH=C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat"

if exist "%VS2022_PATH%" (
    echo Using Visual Studio 2022...
    call "%VS2022_PATH%"
    goto :compile
)

if exist "%VS2019_PATH%" (
    echo Using Visual Studio 2019 Build Tools...
    call "%VS2019_PATH%"
    goto :compile
)

echo ERROR: No Visual Studio installation found
echo.
echo SOLUTION 1: Install Visual Studio Community 2022 (free)
echo   - Download from: https://visualstudio.microsoft.com/downloads/
echo   - Make sure to include "Desktop development with C++" workload
echo   - Include Windows 10/11 SDK
echo.
echo SOLUTION 2: Install Visual Studio Build Tools 2022
echo   - Download from: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022
echo   - Include C++ build tools and Windows SDK
echo.
goto :error

:compile
echo.
echo Building RinHash CUDA miner...
echo.

REM Compile with NVCC (enable device linking for dynamic parallelism)
nvcc -O3 -rdc=true -arch=sm_50 ^
     -gencode arch=compute_50,code=sm_50 ^
     -I. rinhash.cu sha3-256.cu ^
     -o rinhash-cuda-miner.exe ^
     -lcuda -lcudart -lcudadevrt

if errorlevel 1 (
    echo.
    echo BUILD FAILED!
    echo.
    echo Common issues:
    echo 1. Missing Windows SDK - install via Visual Studio Installer
    echo 2. Incompatible Visual Studio version
    echo 3. Missing CUDA runtime libraries
    echo.
    goto :error
)

echo.
echo ======================================
echo   BUILD SUCCESSFUL!
echo ======================================
echo.
echo Executable created: rinhash-cuda-miner.exe
echo.
echo To test the miner:
echo   rinhash-cuda-miner.exe --help
echo.
goto :end

:error
echo.
echo ======================================
echo   BUILD FAILED!
echo ======================================
echo.
pause
exit /b 1

:end
echo Build completed successfully!
pause