from conan import ConanFile
from conan.tools.apple import fix_apple_shared_install_name
from conan.tools.env import VirtualBuildEnv
from conan.tools.files import (
    apply_conandata_patches, copy, export_conandata_patches, get,
    rm, rmdir
)
from conan.tools.gnu import PkgConfigDeps
from conan.tools.layout import basic_layout
from conan.tools.meson import Meson, MesonToolchain

import os

required_conan_version = ">=1.64.0 <2 || >=2.2.0"


class FontconfigConan(ConanFile):
    name = "fontconfig"
    license = "MIT"
    url = "https://github.com/conan-io/conan-center-index"
    description = "Fontconfig is a library for configuring and customizing font access"
    homepage = "https://gitlab.freedesktop.org/fontconfig/fontconfig"
    topics = ("fonts", "freedesktop")
    settings = "os", "arch", "compiler", "build_type"
    options = {
        "shared": [True, False],
        "fPIC": [True, False],
    }
    default_options = {
        "shared": False,
        "fPIC": True,
    }

    def export_sources(self):
        export_conandata_patches(self)

    def config_options(self):
        if self.settings.os == "Windows":
            del self.options.fPIC

    def configure(self):
        if self.options.shared:
            self.options.rm_safe("fPIC")
        self.settings.rm_safe("compiler.libcxx")
        self.settings.rm_safe("compiler.cppstd")

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

    def requirements(self):
        self.requires("freetype/2.13.2")
        self.requires("expat/[>=2.6.2 <3]")

    def build_requirements(self):
        self.tool_requires("gperf/3.1")
#        self.tool_requires("meson/1.4.0")
        if not self.conf.get("tools.gnu:pkg_config", default=False, check_type=str):
            self.tool_requires("pkgconf/[>=2.1.0]")

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

    def generate(self):
        env = VirtualBuildEnv(self)
        env.generate()

        deps = PkgConfigDeps(self)
        deps.generate()

        tc = MesonToolchain(self)
        tc.project_options.update({
            "doc": "disabled",
            "nls": "disabled",
            "tests": "disabled",
            "tools": "disabled",
            "sysconfdir": os.path.join("res", "etc"),
            "datadir": os.path.join("res", "share"),
        })
        tc.generate()

    def _patch_files(self):
        apply_conandata_patches(self)

    def build(self):
        self._patch_files()
        meson = Meson(self)
        meson.configure()
        meson.build()

    def package(self):
        copy(self, "COPYING", self.source_folder, os.path.join(self.package_folder, "licenses"))
        meson = Meson(self)
        meson.install()
        rm(self, "*.pdb", self.package_folder, recursive=True)
        rm(self, "*.conf", os.path.join(self.package_folder, "res", "etc", "fonts", "conf.d"))
        rm(self, "*.def", os.path.join(self.package_folder, "lib"))
        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
        fix_apple_shared_install_name(self)
        fix_msvc_libname(self)

    def package_info(self):
        self.cpp_info.set_property("cmake_find_mode", "both")
        self.cpp_info.set_property("cmake_file_name", "Fontconfig")
        self.cpp_info.set_property("cmake_target_name", "Fontconfig::Fontconfig")
        self.cpp_info.set_property("pkg_config_name", "fontconfig")
        self.cpp_info.libs = ["fontconfig"]
        if self.settings.os in ("Linux", "FreeBSD"):
            self.cpp_info.system_libs.extend(["m", "pthread"])

        fontconfig_path = os.path.join(self.package_folder, "res", "etc", "fonts")
        self.runenv_info.append_path("FONTCONFIG_PATH", fontconfig_path)

        # TODO: to remove in conan v2
        self.cpp_info.names["cmake_find_package"] = "Fontconfig"
        self.cpp_info.names["cmake_find_package_multi"] = "Fontconfig"
        self.env_info.FONTCONFIG_PATH = fontconfig_path

def fix_msvc_libname(conanfile, remove_lib_prefix=True):
    """remove lib prefix & change extension to .lib in case of cl like compiler"""
    if not conanfile.settings.get_safe("compiler.runtime"):
        return
    from conan.tools.files import rename
    import glob
    libdirs = getattr(conanfile.cpp.package, "libdirs")
    for libdir in libdirs:
        for ext in [".dll.a", ".dll.lib", ".a"]:
            full_folder = os.path.join(conanfile.package_folder, libdir)
            for filepath in glob.glob(os.path.join(full_folder, f"*{ext}")):
                libname = os.path.basename(filepath)[0:-len(ext)]
                if remove_lib_prefix and libname[0:3] == "lib":
                    libname = libname[3:]
                rename(conanfile, filepath, os.path.join(os.path.dirname(filepath), f"{libname}.lib"))