#!/bin/bash
/**
 * @file build_target.sh
 * @brief Build specific target
 */

set -e

# Script directory
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"

# Default values
TARGET=""
BUILD_TYPE="debug"
CLEAN=false
VERBOSE=false
JOBS=$(nproc)

# Color codes
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

# Function to print usage
print_usage() {
    echo "Usage: $0 [OPTIONS]"
    echo ""
    echo "Options:"
    echo "  -t, --target <target>    Target board (required)"
    echo "                           Available: stm32f407_discovery"
    echo "                                     nxp_s32k144_evb"
    echo "                                     custom_ecu"
    echo "  -b, --build-type <type>  Build type (default: debug)"
    echo "                           Available: debug, release"
    echo "  -c, --clean              Clean build"
    echo "  -v, --verbose            Verbose output"
    echo "  -j, --jobs <number>      Number of parallel jobs"
    echo "  -h, --help               Show this help"
    echo ""
}

# Parse arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        -t|--target)
            TARGET="$2"
            shift 2
            ;;
        -b|--build-type)
            BUILD_TYPE="$2"
            shift 2
            ;;
        -c|--clean)
            CLEAN=true
            shift
            ;;
        -v|--verbose)
            VERBOSE=true
            shift
            ;;
        -j|--jobs)
            JOBS="$2"
            shift 2
            ;;
        -h|--help)
            print_usage
            exit 0
            ;;
        *)
            echo "Unknown option: $1"
            print_usage
            exit 1
            ;;
    esac
done

# Validate target
if [ -z "${TARGET}" ]; then
    echo -e "${RED}Error: Target not specified${NC}"
    print_usage
    exit 1
fi

# Validate build type
case "${BUILD_TYPE}" in
    debug|release)
        ;;
    *)
        echo -e "${RED}Error: Invalid build type: ${BUILD_TYPE}${NC}"
        exit 1
        ;;
esac

# Build directories
BUILD_DIR="${PROJECT_ROOT}/build/${TARGET}/${BUILD_TYPE}"
LOG_DIR="${PROJECT_ROOT}/build/logs"

# Create directories
mkdir -p "${BUILD_DIR}"
mkdir -p "${LOG_DIR}"

# Print build info
echo -e "${BLUE}========================================${NC}"
echo -e "${BLUE}  Building Automotive RTOS${NC}"
echo -e "${BLUE}========================================${NC}"
echo -e "  Target:     ${YELLOW}${TARGET}${NC}"
echo -e "  Build Type: ${YELLOW}${BUILD_TYPE}${NC}"
echo -e "  Jobs:       ${YELLOW}${JOBS}${NC}"
echo ""

# Clean if requested
if [ "${CLEAN}" = true ]; then
    echo -e "${YELLOW}Cleaning build directory...${NC}"
    rm -rf "${BUILD_DIR}"/*
    echo -e "${GREEN}✓ Clean complete${NC}"
    echo ""
fi

# Configure
echo -e "${YELLOW}Configuring build...${NC}"

# Set CMake arguments
CMAKE_ARGS=(
    "${PROJECT_ROOT}"
    "-DTARGET_BOARD=${TARGET}"
    "-DCMAKE_BUILD_TYPE=${BUILD_TYPE}"
    "-DCMAKE_TOOLCHAIN_FILE=${PROJECT_ROOT}/cmake/toolchain-${TARGET}.cmake"
    "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
)

if [ "${VERBOSE}" = true ]; then
    CMAKE_ARGS+=("-DCMAKE_VERBOSE_MAKEFILE=ON")
fi

# Run CMake
cd "${BUILD_DIR}"
cmake "${CMAKE_ARGS[@]}" 2>&1 | tee "${LOG_DIR}/${TARGET}_${BUILD_TYPE}_configure.log"

if [ $? -ne 0 ]; then
    echo -e "${RED}✗ Configuration failed${NC}"
    exit 1
fi

echo -e "${GREEN}✓ Configuration complete${NC}"
echo ""

# Build
echo -e "${YELLOW}Building...${NC}"

make -j${JOBS} 2>&1 | tee "${LOG_DIR}/${TARGET}_${BUILD_TYPE}_build.log"

if [ $? -ne 0 ]; then
    echo -e "${RED}✗ Build failed${NC}"
    exit 1
fi

echo -e "${GREEN}✓ Build complete${NC}"
echo ""

# Generate artifacts
echo -e "${YELLOW}Generating artifacts...${NC}"

ELF_FILE="${BUILD_DIR}/automotive_rtos.elf"
HEX_FILE="${BUILD_DIR}/automotive_rtos.hex"
BIN_FILE="${BUILD_DIR}/automotive_rtos.bin"
MAP_FILE="${BUILD_DIR}/automotive_rtos.map"
SIZE_FILE="${BUILD_DIR}/size_report.txt"

# Generate hex file
arm-none-eabi-objcopy -O ihex "${ELF_FILE}" "${HEX_FILE}"

# Generate binary file
arm-none-eabi-objcopy -O binary "${ELF_FILE}" "${BIN_FILE}"

# Generate map file
arm-none-eabi-nm -n "${ELF_FILE}" > "${MAP_FILE}"

# Generate size report
arm-none-eabi-size "${ELF_FILE}" > "${SIZE_FILE}"

echo -e "${GREEN}✓ Artifacts generated:${NC}"
echo -e "  ELF: ${BLUE}${ELF_FILE}${NC}"
echo -e "  HEX: ${BLUE}${HEX_FILE}${NC}"
echo -e "  BIN: ${BLUE}${BIN_FILE}${NC}"
echo -e "  MAP: ${BLUE}${MAP_FILE}${NC}"
echo ""

# Print size report
echo -e "${YELLOW}Size Report:${NC}"
cat "${SIZE_FILE}"
echo ""

# Run static analysis if available
if command -v cppcheck >/dev/null 2>&1; then
    echo -e "${YELLOW}Running static analysis...${NC}"

    cppcheck \
        --enable=all \
        --inconclusive \
        --std=c11 \
        --platform=arm32 \
        -I"${PROJECT_ROOT}/kernel/include" \
        -I"${PROJECT_ROOT}/drivers/include" \
        -I"${PROJECT_ROOT}/middleware/include" \
        "${PROJECT_ROOT}/kernel/src" \
        "${PROJECT_ROOT}/drivers/src" \
        "${PROJECT_ROOT}/middleware/src" \
        2>&1 | tee "${LOG_DIR}/${TARGET}_${BUILD_TYPE}_cppcheck.log"

    echo -e "${GREEN}✓ Static analysis complete${NC}"
    echo ""
fi

echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}  Build Successful${NC}"
echo -e "${GREEN}========================================${NC}"