#!/bin/bash
# RinHash HIP Build Script for Linux
# This script builds the HIP implementation of RinHash for AMD GPUs

echo "======================================"
echo "  RinHash HIP Miner Build Script"
echo "======================================"

# Check if hipcc is available
if ! command -v hipcc &> /dev/null; then
    echo "ERROR: hipcc not found in PATH"
    echo "Please install ROCm/HIP toolkit"
    echo "On Ubuntu/Debian: sudo apt install rocm-dev hip-runtime-amd"
    echo "Or download from: https://rocm.docs.amd.com/en/latest/deploy/linux/quick_start.html"
    exit 1
fi

echo "HIP compiler found:"
hipcc --version
echo ""

# Check if cmake is available
if ! command -v cmake &> /dev/null; then
    echo "ERROR: CMake not found in PATH"
    echo "Please install cmake: sudo apt install cmake"
    exit 1
fi

echo "CMake found:"
cmake --version | head -1
echo ""

echo "Building RinHash HIP miner..."
echo ""

# Create build directory
mkdir -p build
cd build

# Configure with CMake
cmake -G "Ninja" \
      -DHIP_PLATFORM=amd \
      -DCMAKE_BUILD_TYPE=Release \
      ..

if [ $? -ne 0 ]; then
    echo "CMake configuration failed!"
    echo "Trying without Ninja..."
    cmake -DHIP_PLATFORM=amd \
          -DCMAKE_BUILD_TYPE=Release \
          ..
    
    if [ $? -ne 0 ]; then
        echo "CMake configuration failed completely!"
        exit 1
    fi
fi

# Build
cmake --build . -j$(nproc)

if [ $? -eq 0 ]; then
    echo ""
    echo "======================================"
    echo "   BUILD SUCCESSFUL!"
    echo "======================================"
    echo ""
    echo "Executable created:"
    echo "  build/rinhash-hip-miner"
    echo ""
    echo "To test the miner:"
    echo "  cd build && ./rinhash-hip-miner --help"
    echo ""
    echo "To check AMD GPU availability:"
    echo "  rocm-smi"
    echo ""
else
    echo ""
    echo "======================================"
    echo "   BUILD FAILED!"
    echo "======================================"
    echo ""
    echo "Common issues:"
    echo "1. Missing ROCm development libraries"
    echo "2. Incompatible HIP version"
    echo "3. Missing development tools"
    echo ""
    exit 1
fi

echo "Build completed successfully!"