#!/bin/bash
# Build script for RinHash CUDA implementation using Docker
# This script builds the CUDA miner in a containerized environment

echo "================================================"
echo "  RinHash CUDA Linux Docker Build Script"
echo "================================================"

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

echo "Docker found:"
docker --version
echo ""

# Build directory setup
BUILD_DIR="$(dirname "$0")"
cd "$BUILD_DIR" || exit 1

echo "Building Docker image for CUDA compilation..."
echo ""

# Build the Docker image
docker build -f Dockerfile.cuda-linux -t rinhash-cuda-builder .

if [ $? -ne 0 ]; then
    echo ""
    echo "==============================================="
    echo "   DOCKER BUILD FAILED!"
    echo "==============================================="
    echo ""
    echo "Common issues:"
    echo "1. Docker not properly installed"
    echo "2. Insufficient permissions (try with sudo)"
    echo "3. Network connectivity issues"
    echo ""
    exit 1
fi

echo ""
echo "Docker image built successfully!"
echo ""

# Create output directory
mkdir -p cuda-output

echo "Running container to build CUDA binaries..."
echo ""

# Run the container and extract binaries
docker run --rm \
    -v "$(pwd)/cuda-output:/output" \
    rinhash-cuda-builder

if [ $? -eq 0 ]; then
    echo ""
    echo "==============================================="
    echo "   BUILD SUCCESSFUL!"
    echo "==============================================="
    echo ""
    echo "Binaries created in cuda-output/:"
    ls -la cuda-output/
    echo ""
    echo "To test the miner (requires NVIDIA GPU):"
    echo "  ./cuda-output/test_miner"
    echo ""
    echo "To run the miner:"
    echo "  ./cuda-output/rinhash-cuda-miner"
    echo ""
else
    echo ""
    echo "==============================================="
    echo "   BUILD FAILED!"
    echo "==============================================="
    echo ""
    echo "Check the error messages above for details."
    echo ""
    exit 1
fi

echo "CUDA build completed successfully!"