import os
import sys
import rtconfig

if os.getenv('RTT_ROOT'):
    RTT_ROOT = os.getenv('RTT_ROOT')
else:
    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../rt-thread')

sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
from building import *

TARGET = 'rtthread.' + rtconfig.TARGET_EXT

DefaultEnvironment(tools=[])
env = Environment(tools = ['mingw'],
    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
    CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
    CXX = rtconfig.CXX, CXXFLAGS = rtconfig.CXXFLAGS,
    AR = rtconfig.AR, ARFLAGS = '-rc',
    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
# use ASPPCOM to replace ASCOM, ASPPCOM will use CFLAGS/CPPFLAGS with AS
env['ASCOM'] = env['ASPPCOM']

AddOption('--compiledb',
    dest = 'compiledb',
    action = 'store_true',
    default = False,
    help = 'generate compile_commands.json')

if GetOption('compiledb'):
    if int(SCons.__version__.split('.')[0]) >= 4:
        env['COMPILATIONDB_USE_ABSPATH'] = True
        env.Tool('compilation_db')
        env.CompilationDatabase('compile_commands.json')
    else:
        print('Warning: --compiledb only support on SCons 4.0+')

Export('RTT_ROOT')
Export('rtconfig')

# prepare building environment
objs = PrepareBuilding(env, RTT_ROOT, has_libcpu = False)

stack_size = 4096

stack_lds = open('link_stacksize.lds', 'w')
if GetDepend('__STACKSIZE__'): stack_size = GetDepend('__STACKSIZE__')
stack_lds.write('__STACKSIZE__ = %d;' % stack_size)
stack_lds.close()

# include more drivers
objs.extend(SConscript(os.getcwd() + '/../../app_match_rt-thread/SConscript'))

# include APP_Framework/Framework
objs.extend(SConscript(os.getcwd() + '/../../../../APP_Framework/Framework/SConscript'))

# include APP_Framework/Applications
objs.extend(SConscript(os.getcwd() + '/../../../../APP_Framework/Applications/SConscript'))

# include APP_Framework/lib
objs.extend(SConscript(os.getcwd() + '/../../../../APP_Framework/lib/SConscript'))
# make a building
DoBuilding(TARGET, objs)