#!/bin/bash
# Build script for CeresWrapper shared library on Linux

set -e  # Exit on error

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

echo -e "${GREEN}Building CeresWrapper shared library...${NC}"

# Get script directory
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
BUILD_DIR="${SCRIPT_DIR}/build"
INSTALL_DIR="${SCRIPT_DIR}/install"

# Remove old build directory to avoid CMake cache conflicts
if [ -d "${BUILD_DIR}" ]; then
    echo -e "${YELLOW}Removing old build directory...${NC}"
    rm -rf "${BUILD_DIR}"
fi

# Create build directory
mkdir -p "${BUILD_DIR}"
cd "${BUILD_DIR}"

# Configure CMake
echo -e "${YELLOW}Configuring CMake...${NC}"
cmake .. \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
    -DCMAKE_POSITION_INDEPENDENT_CODE=ON

# Build
echo -e "${YELLOW}Building...${NC}"
make -j$(nproc)

# Install
echo -e "${YELLOW}Installing...${NC}"
make install

# Show results
echo -e "${GREEN}Build completed successfully!${NC}"
echo ""
echo "Library location: ${INSTALL_DIR}/lib/libceres_wrapper.so"
echo "Header location: ${INSTALL_DIR}/include/ceres_wrapper/ceres_wrapper.h"
echo ""

# Run tests if built
if [ -f "${BUILD_DIR}/ceres_wrapper_test" ]; then
    echo -e "${YELLOW}Running tests...${NC}"
    echo ""
    "${BUILD_DIR}/ceres_wrapper_test"
    TEST_RESULT=$?
    echo ""
    if [ $TEST_RESULT -eq 0 ]; then
        echo -e "${GREEN}All tests passed!${NC}"
    else
        echo -e "${RED}Some tests failed!${NC}"
    fi
    echo ""
fi

echo "To use the library, set LD_LIBRARY_PATH:"
echo "  export LD_LIBRARY_PATH=${INSTALL_DIR}/lib:\$LD_LIBRARY_PATH"