# -*- Mode: Python -*- vi:si:et:sw=4:sts=4:ts=4:syntax=python
import shutil


class Recipe(recipe.Recipe):
    name = 'mingw-runtime'
    version = '0.1'
    licenses = [License.LGPLv2_1Plus]
    licenses_bins = [License.GPLv2Plus]
    btype = BuildType.CUSTOM
    stype = SourceType.CUSTOM
    runtime_dep = True

    files_bins = []
    files_libs = ['libwinpthread-1', 'libstdc++-6']
    files_devel = ['lib/libstdc++.a', 'lib/libstdc++.la']
    files_static = []
    files_headers = ['include/GL']

    def prepare(self):
        if self.config.target_platform != Platform.WINDOWS:
            raise InvalidRecipeError(self, "Invalid platform")
        if self.config.variants.uwp:
            self.runtime_dep = False
        if self.config.target_arch == Architecture.X86:
            gcclib = 'lib/gcc/x86_64-w64-mingw32/8.2.0/32/'
            self._ehlib = 'libgcc_s_sjlj-1'
        else:
            gcclib = 'lib/gcc/x86_64-w64-mingw32/8.2.0/'
            self._ehlib = 'libgcc_s_seh-1'

        # mingw's static libraries
        self.mingw_static_files = ['libmingwex.a',
                                   'libmingw32.a',
                                   'libdxerr9.a',
                                   'libmoldname.a']
        self.gcc_static_files = [gcclib + 'libgcc.a',
                                 gcclib + 'libgcc_eh.a']
        self.files_static += [os.path.join('lib', os.path.basename(f))
                              for f in self.mingw_static_files + self.gcc_static_files]

        self.files_libs.append(self._ehlib)

    async def install(self):
        hostroot = os.path.join(
            self.config.toolchain_prefix, 'x86_64-w64-mingw32')
        sysroot = os.path.join(hostroot, 'sysroot',
                               'usr', 'x86_64-w64-mingw32')
        # Copy libstdc++ to the prefix and update the .la files with the
        # the prefix path.
        if self.config.target_arch == Architecture.X86:
            libmingw = os.path.join(sysroot, 'lib32')
            if self.config.platform == Platform.WINDOWS:
                libdir = os.path.join(self.config.toolchain_prefix, 'lib32')
            else:
                libdir = os.path.join(hostroot, 'lib32')
        else:
            libtoolchain = os.path.join(hostroot, 'lib')
            libmingw = os.path.join(sysroot, 'lib')
            if self.config.platform == Platform.WINDOWS:
                libdir = os.path.join(self.config.toolchain_prefix, 'lib')
            else:
                libdir = os.path.join(hostroot, 'lib')

        # copy the dll
        if not os.path.exists(os.path.join(self.config.prefix, 'bin')):
            os.makedirs(os.path.join(self.config.prefix, 'bin'))
        if not os.path.exists(os.path.join(self.config.prefix, 'lib')):
            os.makedirs(os.path.join(self.config.prefix, 'lib'))
        for f in ['libwinpthread-1.dll']:
            shutil.copy(
                os.path.join(libmingw, f),
                os.path.join(self.config.prefix, 'bin', f))
        for f in ['libstdc++-6.dll']:
            shutil.copy(
                os.path.join(libdir, f),
                os.path.join(self.config.prefix, 'bin', f))
        for f in [self._ehlib + '.dll']:
            shutil.copy(
                os.path.join(libdir, f),
                os.path.join(self.config.prefix, 'bin', f))
        # copy the development libraries
        for f, v, d in [
                ('libstdc++', '', libdir),
                ('libgcc_s', '', libdir),
                ('libpthread', '', libmingw),
                ('libwinpthread', '1', libmingw)]:
            # Copy the dll.a
            n_dll_a = f + v + '.dll.a'
            f_dll_a = os.path.join(d, n_dll_a)
            if os.path.exists(f_dll_a):
                shutil.copy(f_dll_a,
                    os.path.join(self.config.prefix, 'lib', n_dll_a))
            # Copy the .a
            f_a = os.path.join(d, f + '.a')
            if os.path.exists(f_a):
                shutil.copy(f_a,
                    os.path.join(self.config.prefix, 'lib', f + '.a'))
            # Copy and update the .la
            src = os.path.join(d, f + '.la')
            if os.path.exists(src):
                dest = os.path.join(self.config.prefix, 'lib', f + '.la')
                if os.path.exists(dest):
                    os.remove(dest)
                with open(src, 'r') as f:
                    content = f.readlines()[:-1]
                    content.append("libdir='%s'" % os.path.join(self.config.prefix, 'lib'))
                    with open(dest, 'w+') as d:
                        d.writelines(content)
        # install headers and static libraries
        for f in self.files_headers:
            src = os.path.join(sysroot, f)
            dest = os.path.join(self.config.prefix, f)
            if os.path.exists(dest):
                shutil.rmtree(dest)
            shutil.copytree(src, dest)

        for f in self.mingw_static_files:
            out_file = os.path.join('lib', os.path.basename(f))
            shutil.copy(os.path.join(libmingw, f),
                os.path.join(self.config.prefix, out_file))
        for f in self.gcc_static_files:
            out_file = os.path.join('lib', os.path.basename(f))
            shutil.copy(os.path.join(self.config.toolchain_prefix, f),
                 os.path.join(self.config.prefix, out_file))