import os
import sys
import rtconfig

IS_EXPORTED = False

# setup RT-Thread Root Path
if os.getenv('RTT_ROOT'):
    RTT_ROOT = os.getenv('RTT_ROOT')
else:
    RTT_ROOT = os.getcwd() + '/../../..'

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)

if RTT_ROOT == 'rt-thread':
    IS_EXPORTED = True # if kenrel and bsp has been exported by export_project.py

# setup Phytium BSP Root Path
if IS_EXPORTED:
    BSP_ROOT = '.'
else:
    BSP_ROOT = RTT_ROOT + '/bsp/phytium'

TARGET = 'rtthread_a32.' + rtconfig.TARGET_EXT

DefaultEnvironment(tools=[])
env = Environment(tools = ['mingw'],
    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
    CC = rtconfig.CC, CFLAGS = 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('BSP_ROOT')
Export('rtconfig')

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

if not IS_EXPORTED: # if project is not exported, libraries and board need to manually add
    # include libraries
    objs.extend(SConscript(os.path.join(BSP_ROOT + '/libraries', 'SConscript')))

    # include board
    objs.extend(SConscript(os.path.join(BSP_ROOT + '/board', 'SConscript')))


if GetDepend('RT_USING_SMART'):
    # use smart link.lds
    env['LINKFLAGS'] = env['LINKFLAGS'].replace('link.lds', 'link_smart.lds')

# make a building
DoBuilding(TARGET, objs)