import os
import sys
import string

def is_active():
	return True
	
def get_name():
	return "JavaScript"

def can_build():

        import os
        if (not os.environ.has_key("EMSCRIPTEN_ROOT")):
        	return False
	return True

def get_opts():

	return [
		['compress','Compress JS Executable','no']
	]

def get_flags():

	return [
		('lua', 'no'),
		('tools', 'no'),
		('nedmalloc', 'no'),
		('theora', 'no'),
		('tools', 'no'),
		('nedmalloc', 'no'),
		('vorbis', 'no'),
		('musepack', 'no'),
		('squirrel', 'no'),
		('squish', 'no'),
		('speex', 'no'),
		('old_scenes', 'no'),
#		('default_gui_theme', 'no'),

		#('builtin_zlib', 'no'),
	]



def configure(env):


	env.Append(CPPPATH=['#platform/android'])
	
	env['OBJSUFFIX'] = ".js.o"
	env['LIBSUFFIX'] = ".js.a"
	env['PROGSUFFIX'] = ".html"
	
	em_path=os.environ["EMSCRIPTEN_ROOT"]
	
	env['ENV']['PATH'] = em_path+":"+env['ENV']['PATH']

	env['CC'] = em_path+'/emcc'
	env['CXX'] = em_path+'/emcc'
	env['AR'] = em_path+"/emar"
	env['RANLIB'] = em_path+"/emranlib"

#	env.Append(LIBS=['c','m','stdc++','log','GLESv1_CM','GLESv2'])

#	env["LINKFLAGS"]= string.split(" -g --sysroot="+ld_sysroot+" -Wl,--no-undefined -Wl,-z,noexecstack ")

	if (env["target"]=="release"):

		env.Append(CCFLAGS=['-O2'])
		env['OBJSUFFIX'] = "_opt"+env['OBJSUFFIX']
		env['LIBSUFFIX'] = "_opt"+env['LIBSUFFIX']

	elif (env["target"]=="release_debug"):

		env.Append(CCFLAGS=['-O2','-DDEBUG_ENABLED'])
		env['OBJSUFFIX'] = "_optd"+env['OBJSUFFIX']
		env['LIBSUFFIX'] = "_optd"+env['LIBSUFFIX']

	elif (env["target"]=="debug"):

		env.Append(CCFLAGS=['-D_DEBUG', '-Wall', '-O2', '-DDEBUG_ENABLED'])
		env.Append(CPPFLAGS=['-DDEBUG_MEMORY_ALLOC'])

	env.Append(CPPFLAGS=["-fno-exceptions",'-DNO_SAFE_CAST','-fno-rtti'])
	env.Append(CPPFLAGS=['-DJAVASCRIPT_ENABLED', '-DUNIX_ENABLED', '-DNO_FCNTL','-DMPC_FIXED_POINT','-DTYPED_METHOD_BIND','-DNO_THREADS'])
	env.Append(CPPFLAGS=['-DGLES2_ENABLED'])
	env.Append(CPPFLAGS=['-DGLES_NO_CLIENT_ARRAYS'])
	env.Append(CPPFLAGS=['-s','ASM_JS=1'])
	env.Append(CPPFLAGS=['-s','FULL_ES2=1'])
#	env.Append(CPPFLAGS=['-DANDROID_ENABLED', '-DUNIX_ENABLED','-DMPC_FIXED_POINT'])
	if (env["compress"]=="yes"):
		lzma_binpath = em_path+"/third_party/lzma.js/lzma-native"
		lzma_decoder = em_path+"/third_party/lzma.js/lzma-decoder.js"
		lzma_dec = "LZMA.decompress"

		env.Append(LINKFLAGS=['--compression',lzma_binpath+","+lzma_decoder+","+lzma_dec])

	env.Append(LINKFLAGS=['-s','ASM_JS=1'])
	env.Append(LINKFLAGS=['-O2'])