import shutil
from cerbero.build.build import modify_environment


class Recipe(recipe.Recipe):
    name = 'winpthreads'
    version = 'v6.0.0'
    licenses = [License.LGPLv2_1Plus]
    configure_options = '--enable-shared --enable-static'
    add_host_build_target = False
    autoreconf = True
    allow_parallel_build = False
    stype = SourceType.CUSTOM
    deps = ['mingw-w64-headers']
    files_all = [
            'bin/libwinpthread-1.dll',
            'lib/libpthread.a',
            'lib/libpthread.dll.a',
            'lib/libwinpthread.a',
            'lib/libwinpthread.dll.a',
            'lib/libwinpthread.la',
            'include/pthread.h',
            'include/pthread_compat.h',
            'include/pthread_time.h',
            'include/pthread_unistd.h',
            'include/sched.h',
            'include/semaphore.h',
            ]

    def prepare(self):
        if self.config.target_arch == Architecture.X86:
            raise InvalidRecipeError(self)
        # Since we are cross-compiling we have to reset all the env
        # variables set by cerbero (eg: we don't want -m64 overriding
        # a i386 build or gcc being used instead of x86_64-mingw32-w64-gcc)
        for v in ['CC', 'LD', 'CPP', 'AS', 'RC', 'CXX','CFLAGS', 'LDFLAGS',
                'CXXFLAGS', 'CCASFLAGS']:
            self.set_env(v)
        self.host = 'x86_64-w64-mingw32'
        self.sysroot = os.path.join(self.config.prefix, self.host, 'sysroot')
        self.configure_options += ' --with-sysroot=%s ' % self.sysroot
        self.make_install = ['make', 'install', 'DESTDIR=' + self.sysroot]
        self.build_dir = os.path.join(self.config.sources,
                'mingw-w64-%s' % self.version)
        self.make_dir = os.path.join(self.config.sources,
                'mingw-w64-%s/mingw-w64-libraries/winpthreads' % self.version)
        self.configure_tpl = "%%(config-sh)s --prefix /usr/%(host)s "\
                "--libdir /usr/%(host)s %%(options)s" % {'host': self.host}
        self.build_dir_32 = os.path.join(self.make_dir, 'winpthread_build_32')
        self.build_dir_64 = os.path.join(self.make_dir, 'winpthread_build_64')

    @modify_environment
    def configure(self):
        # Since the toolchain is built with multilib support
        # this recipe builds winpthreads for both x86_64 and x86
        try:
            os.mkdir(self.build_dir_32)
        except:
            pass
        flags = "CC=x86_64-w64-mingw32-gcc RC=x86_64-w64-mingw32-windres " \
                "LD=x86_64-w64-mingw32-ld LDFLAGS=' -m32' CFLAGS=' -m32' CXXFLAGS=' -m32' " \
                "RCFLAGS='-F pe-i386' DLLTOOLFLAGS='-m i386'"
        host = 'i386-w64-mingw32'
        libdir = "/usr/%s/lib32" % self.host
        shell.new_call('%s ../configure --bindir=%s --libdir=%s --prefix=/usr/%s --host=%s %s' %\
                (flags, libdir, libdir, host, host, self.configure_options),
                self.build_dir_32)

        try:
            os.mkdir(self.build_dir_64)
        except:
            pass
        flags = "CC=x86_64-w64-mingw32-gcc RC=x86_64-w64-mingw32-windres " \
                "LD=x86_64-w64-mingw32-ld LDFLAGS=' -m64' CFLAGS=' -m64' CXXFLAGS=' -m64' "
        host = 'x86_64-w64-mingw32'
        libdir = "/usr/%s/lib" % self.host
        shell.new_call('%s ../configure --bindir=%s --libdir=%s --prefix=/usr/%s --host=%s %s' %\
                (flags, libdir, libdir, host, host, self.configure_options),
                self.build_dir_64)

    def compile(self):
        shell.new_call(self.make, self.build_dir_32)
        shell.new_call(self.make, self.build_dir_64)

    @modify_environment
    def install(self):
        src_winpthread_dll = "%s/usr/%s/bin/libwinpthread-1.dll" % \
                (self.sysroot, self.host)
        libdir = "%s/usr/%s/lib32/" % (self.sysroot, self.host)
        dest_winpthread_dll = os.path.join(libdir, "libwinpthread-1.dll")
        shell.new_call(self.make_install, self.build_dir_32)
        if os.path.exists(dest_winpthread_dll):
            os.remove(dest_winpthread_dll)
        shutil.move(src_winpthread_dll, dest_winpthread_dll)
        shell.new_call(self.make_install, self.build_dir_64)
        libdir = "%s/usr/%s/lib/" % (self.sysroot, self.host)
        dest_winpthread_dll = os.path.join(libdir, "libwinpthread-1.dll")
        if os.path.exists(dest_winpthread_dll):
            os.remove(dest_winpthread_dll)
        shutil.move(src_winpthread_dll, libdir)