# (c) 2025 by Stephan Menzel
# Licensed under the Apache License, Version 2.0.
# See attached file LICENSE for full details

from pathlib import Path

from build_functions.build_utils import print_banner
from common.azure import write_package_version_batch
from common.cmake import cmake_build_install
from common.git_helpers import clone_git_tag
import common.settings
from package.package_info import get_package_info


def build_eigen(prefix: Path | str, sbom: dict):

    print_banner("Building Eigen")

    package_info = get_package_info("eigen")

    # Eigen's build system has weird bugs
    # https://stackoverflow.com/questions/71876437/cmake-error-compiler-does-not-support-c11-when-configuring-eigen-with-visual
    # which make it fail with anything but explicitly set C++11. Sad, really. It appears to be fixed in master
    # but I can't switch to master for a medical device.
    global cpp_standard
    prev_cpp_standard = common.settings.cpp_standard
    common.settings.cpp_standard = "11"

    package_info.add_to_sbom(sbom)

    eigen_cmake_args = [
        ("CMAKE_Fortran_COMPILER_NOT_FOUND:BOOL", "ON")
    ]
    eigen_dir = clone_git_tag(package_info, recursive=False)
    install_dir = cmake_build_install(eigen_dir, package_info, cmake_args=eigen_cmake_args)
    write_package_version_batch(package_info.version)

    common.settings.cpp_standard = prev_cpp_standard

    return install_dir