from conan import ConanFile
from conan.tools.files import get, copy, rmdir
from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
from conan.tools.build import check_min_cppstd
from conan.tools.scm import Version
import os

required_conan_version = ">=1.52.0"

class CLI11Conan(ConanFile):
    name = "cli11"
    description = "A command line parser for C++11 and beyond."
    license = "BSD-3-Clause"
    url = "https://github.com/conan-io/conan-center-index"
    homepage = "https://github.com/CLIUtils/CLI11"
    topics = "cli-parser", "cpp11", "no-dependencies", "cli"
    package_type = "header-library"
    settings = "os", "arch", "compiler", "build_type"
    no_copy_source = True

    options = {
        "header_only": [True, False]
    }
    default_options = {
        "header_only": True
    }

    @property
    def _min_cppstd(self):
        return "11"

    @property
    def _supports_compilation(self):
        return Version(self.version) >= "2.3"

    def configure(self):
        if not self._supports_compilation:
            # TODO: Back to config_options after Conan 1 freeze
            del self.options.header_only
        elif not self.options.header_only:
            self.package_type = "static-library"

    def layout(self):
        cmake_layout(self, src_folder="src")

    def package_id(self):
        if not self._supports_compilation or self.info.options.header_only:
            self.info.clear()

    def validate(self):
        if self.settings.compiler.get_safe("cppstd"):
            check_min_cppstd(self, self._min_cppstd)

    def source(self):
        get(self, **self.conan_data["sources"][self.version], strip_root=True)

    def generate(self):
        tc = CMakeToolchain(self)
        if self._supports_compilation:
            tc.variables["CLI11_PRECOMPILED"] = not self.options.header_only
        tc.variables["CLI11_BUILD_EXAMPLES"] = False
        tc.variables["CLI11_BUILD_TESTS"] = False
        tc.variables["CLI11_BUILD_DOCS"] = False
        tc.generate()

    def build(self):
        cmake = CMake(self)
        cmake.configure()
        cmake.build()

    def package(self):
        copy(self, "LICENSE", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
        cmake = CMake(self)
        cmake.install()
        rmdir(self, os.path.join(self.package_folder, "lib", "cmake"))
        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
        # since 2.1.1
        rmdir(self, os.path.join(self.package_folder, "share"))

    def package_info(self):
        self.cpp_info.bindirs = []
        self.cpp_info.libdirs = []

        if self._supports_compilation and not self.options.get_safe("header_only"):
            self.cpp_info.libdirs = ["lib"]
            self.cpp_info.libs = ["CLI11"]
            self.cpp_info.defines = ["CLI11_COMPILE"]

        self.cpp_info.set_property("cmake_file_name", "CLI11")
        self.cpp_info.set_property("cmake_target_name", "CLI11::CLI11")
        self.cpp_info.set_property("pkg_config_name", "CLI11")

        # TODO: to remove in conan v2 once cmake_find_package_* generators removed
        self.cpp_info.names["cmake_find_package"] = "CLI11"
        self.cpp_info.names["cmake_find_package_multi"] = "CLI11"
        self.cpp_info.names["pkg_config"] = "CLI11"