# Copyright (c) 2020 Egor Tensin <egor@tensin.name>
# This file is part of the "cmake-common" project.
# For details, see https://github.com/egor-tensin/cmake-common
# Distributed under the MIT License.

import argparse
from enum import auto, StrEnum
import logging

from project.os import on_linux_like


class Linkage(StrEnum):
    STATIC = auto()
    SHARED = auto()

    @staticmethod
    def all():
        return tuple(Linkage)

    @staticmethod
    def parse(s):
        try:
            return Linkage(s)
        except ValueError as e:
            raise argparse.ArgumentTypeError(f"invalid linkage: {s}") from e

    # For my development, I link everything statically (to be able to pull the
    # binaries from a CI, etc. and run them everywhere):
    @staticmethod
    def default_link():
        return Linkage.STATIC

    @staticmethod
    def default_runtime_link():
        return Linkage.STATIC

    @staticmethod
    def validate_linkage(link, runtime_link):
        if runtime_link is Linkage.STATIC:
            if link is Linkage.SHARED:
                logging.warning(
                    "Cannot link the runtime statically to a dynamic library, going to link dynamically"
                )
                runtime_link = Linkage.SHARED
            elif on_linux_like():
                logging.warning(
                    "Cannot link to the GNU C Library or BSD libc (which are assumed) statically, going to link dynamically"
                )
                runtime_link = Linkage.SHARED
        return link, runtime_link

    def b2_args_link(self):
        return [f"link={self}"]

    def b2_args_runtime_link(self):
        return [f"runtime-link={self}"]

    def cmake_args_link(self):
        if self is Linkage.STATIC:
            return ["-DBoost_USE_STATIC_LIBS=ON"]
        return []

    def cmake_args_runtime_link(self):
        if self is Linkage.STATIC:
            return [
                "-DBoost_USE_STATIC_RUNTIME=ON",
                "-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded$<$<CONFIG:Debug>:Debug>",
            ]
        return []