#
#    Copyright (C) 2026 Carl Hetherington <cth@carlh.net>
#
#    This file is part of libttf.
#
#    libttf is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    libttf is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with libttf.  If not, see <http://www.gnu.org/licenses/>.
#

import shlex
import subprocess

APPNAME = 'libttf'

this_version = subprocess.Popen(shlex.split('git tag -l --points-at HEAD'), stdout=subprocess.PIPE).communicate()[0].decode('UTF-8')
last_version = subprocess.Popen(shlex.split('git describe --tags --abbrev=0'), stdout=subprocess.PIPE).communicate()[0].decode('UTF-8')

if this_version == '':
    VERSION = '%sdevel' % last_version[1:].strip()
else:
    VERSION = this_version[1:].strip()

def options(opt):
    opt.load('compiler_cxx')
    opt.add_option('--static', action='store_true', default=False, help='build libttf statically')
    opt.add_option('--target-windows-64', action='store_true', default=False, help='set up to do a cross-compile to Windows 64-bit')
    opt.add_option('--target-windows-32', action='store_true', default=False, help='set up to do a cross-compile to Windows 32-bit')
    opt.add_option('--c++17', action='store_true', default=False, help='build with C++17')
    opt.add_option('--disable-tests', action='store_true', default=False, help='disable building of tests')

def configure(conf):
    conf.load('compiler_cxx')
    conf.env.STATIC = conf.options.static
    conf.env.TARGET_WINDOWS_64 = conf.options.target_windows_64
    conf.env.TARGET_WINDOWS_32 = conf.options.target_windows_32
    conf.env.DISABLE_TESTS = conf.options.disable_tests

    conf.env.append_value('CXXFLAGS', '-DBOOST_TEST_DYN_LINK')
    if vars(conf.options)['c++17']:
        conf.env.append_value('CXXFLAGS', '-std=c++17')
    else:
        conf.env.append_value('CXXFLAGS', '-std=c++11')

    if conf.env.TARGET_WINDOWS_64:
        boost_lib_suffix = '-mt-x64'
        conf.env.append_value('CXXFLAGS', '-DLIBTTF_WINDOWS')
    elif conf.env.TARGET_WINDOWS_32:
        boost_lib_suffix = '-mt-x32'
        conf.env.append_value('CXXFLAGS', '-DLIBTTF_WINDOWS')
    else:
        boost_lib_suffix = ''
        conf.env.append_value('CXXFLAGS', '-DLIBTTF_POSIX')

    boost_system = conf.check_cxx(lib='boost_system%s' % boost_lib_suffix, mandatory=False)

    def boost_libs(name):
        libs = ['boost_system%s' % boost_lib_suffix] if boost_system else []
        libs.append('boost_%s%s' % (name, boost_lib_suffix))
        return libs

    conf.check_cxx(fragment="""
 		   #include <boost/filesystem.hpp>\n
    		   int main() { boost::filesystem::copy_file ("a", "b"); }\n
		   """,
                   msg='Checking for boost filesystem library',
                   libpath='/usr/local/lib',
                   lib=boost_libs('filesystem'),
                   uselib_store='BOOST_FILESYSTEM')

    conf.check_cfg(package='fmt', args='--cflags --libs', uselib_store='FMT', mandatory=True)

    if not conf.env.DISABLE_TESTS:
        conf.recurse('test')

def build(bld):
    bld(source='libttf-1.0.pc.in',
        version=VERSION,
        includedir='%s/include/libttf-1.0' % bld.env.PREFIX,
        libs='-L${libdir} -lttf-1.0',
        install_path='${LIBDIR}/pkgconfig')

    bld.recurse('src')
    if not bld.env.DISABLE_TESTS:
        bld.recurse('test')