#! /usr/bin/env python
# encoding: utf-8
# mittorn, 2018

from waflib import Logs
import os

top = '.'

def options(opt):
	opt.add_option(
	    '--enable-bsp2', action = 'store_true', dest = 'SUPPORT_BSP2_FORMAT', default = False,
		help = 'build engine with BSP2 map support(recommended for Quake, breaks compability!)')

def configure(conf):
	# check for dedicated server build
	if conf.options.DEDICATED:
		if(conf.env.DEST_OS == 'linux'):
			conf.check( lib='rt' )
		conf.env.append_unique('DEFINES', 'SINGLE_BINARY')
		conf.env.append_unique('DEFINES', 'XASH_DEDICATED')
	else:
		# TODO: add way to specify SDL2 path, move to separate function
		try:
			conf.check_cfg(
				path='sdl2-config', 
				args='--cflags --libs', 
				package='', 
				msg='Checking for SDL2', 
				uselib_store='SDL2')
		except conf.errors.ConfigurationError:
			if(conf.options.SDL2_PATH):
				conf.start_msg('Configuring SDL2 by provided path')
				conf.env.HAVE_SDL2 = 1
				conf.env.INCLUDES_SDL2 = [
					os.path.abspath(os.path.join(conf.options.SDL2_PATH, 'include')),
					os.path.abspath(os.path.join(conf.options.SDL2_PATH, 'include/SDL2'))
				]
				libpath = 'lib'
				if(conf.env.COMPILER_CC == 'msvc'):
					libpath = 'lib/x86'
				conf.env.LIBPATH_SDL2 = [os.path.abspath(os.path.join(conf.options.SDL2_PATH, libpath))]
				conf.env.LIB_SDL2 = ['SDL2']
				conf.end_msg('yes: {0}, {1}, {2}'.format(conf.env.LIB_SDL2, conf.env.LIBPATH_SDL2, conf.env.INCLUDES_SDL2))
			else:
				conf.fatal('SDL2 not availiable! If you want to build dedicated server, specify --dedicated')
		conf.env.append_unique('DEFINES', 'XASH_SDL')

	if(conf.options.SUPPORT_BSP2_FORMAT):
		conf.env.append_unique('DEFINES', 'SUPPORT_BSP2_FORMAT')

	if conf.env.DEST_OS == 'win32':
		conf.check( lib='user32' )
		conf.check( lib='shell32' )
		conf.check( lib='gdi32' )
		conf.check( lib='advapi32' )
		conf.check( lib='dbghelp' )
		conf.check( lib='psapi' )
		conf.env.append_unique('DEFINES', 'DBGHELP')

def get_subproject_name(ctx):
	return os.path.basename(os.path.realpath(str(ctx.path)))

def build(bld):
	bld.load_envs()
	bld.env = bld.all_envs[get_subproject_name(bld)]

	libs = []
	source = bld.path.ant_glob([
	    'common/*.c',
		'common/imagelib/*.c',
		'common/soundlib/*.c',
		'common/soundlib/libmpg/*.c',
		'server/*.c'])

	# basic build: dedicated only, no dependencies
	if bld.env.DEST_OS != 'win32':
		libs += [ 'DL' , 'M', 'PTHREAD' ]
		source += bld.path.ant_glob(['platform/posix/*.c'])
	else:
		libs += ['USER32', 'SHELL32', 'GDI32', 'ADVAPI32', 'DBGHELP', 'PSAPI']
		source += bld.path.ant_glob(['platform/win32/*.c'])

	if bld.env.DEST_OS == 'linux':
		source += bld.path.ant_glob(['platform/linux/*.c'])

	# add client files and sdl2 library
	if not bld.env.DEDICATED:
		libs.append( 'SDL2' )
		source += bld.path.ant_glob([
			'client/*.c',
			'client/vgui/*.c',
			'client/avi/*.c',
			'platform/sdl/*.c'])
	else:
		if(bld.env.DEST_OS == 'linux'):
			libs.append('RT')

	includes = ['common', 'server', 'client', 'client/vgui', '.', '../common', '../pm_shared' ]

	if(bld.env.SINGLE_BINARY):
		bld(
			source   = source,
			target   = 'xash',
			features = 'c cprogram',
			includes = includes,
			use      = libs,
			install_path = bld.env.BINDIR,
			subsystem = bld.env.MSVC_SUBSYSTEM
		)
	else:
		bld.shlib(
			source   = source,
			target   = 'xash',
			features = 'c',
			includes = includes,
			use      = libs,
			install_path = bld.env.LIBDIR,
			subsystem = bld.env.MSVC_SUBSYSTEM
		)