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() + '/../../..')

# set RTT_ROOT
if not os.getenv("RTT_ROOT"): 
    RTT_ROOT="rt-thread"

sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
try:
    from building import *
except:
    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
    print(RTT_ROOT)
    exit(-1)

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)
env['ASCOM'] = env['ASPPCOM']

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

SDK_ROOT = os.path.abspath('./')

if os.path.exists(SDK_ROOT + '/libraries'):
    libraries_path_prefix = SDK_ROOT + '/libraries'
else:
    libraries_path_prefix = os.path.dirname(SDK_ROOT) + '/libraries'

if os.path.exists(SDK_ROOT + '/libcpu'):
    libcpu_path_prefix = SDK_ROOT + '/libcpu'
else:
    libcpu_path_prefix = os.path.dirname(SDK_ROOT) + '/libcpu'

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

bsp_library_type = 'hal_libraries'
rtconfig.BSP_LIBRARY_TYPE = bsp_library_type

# include libraries
objs.extend(SConscript(os.path.join(libraries_path_prefix, bsp_library_type, 'SConscript')))

# include drivers
objs.extend(SConscript(os.path.join(libraries_path_prefix, 'hal_drivers', 'SConscript')))

# include drivers
objs.extend(SConscript(os.path.join(libcpu_path_prefix, 'cpu', 'SConscript')))

# make a building
DoBuilding(TARGET, objs)