import Version, os.path

Import(["env", "conf_env"])

if env["SCONS_STAGE"] == "build" and not GetOption("help") and not env.get("HAVE_LUA", 0) :
	print "Warning: Lua was not found. Sluift will not be built."
	if "Sluift" in env["PROJECTS"] :
		env["PROJECTS"].remove("Sluift")
		
elif env["SCONS_STAGE"] == "build" :
	sluift_sources = [
		"Lua/Value.cpp",
		"Lua/Exception.cpp",
		"Lua/Check.cpp",
		"Lua/FunctionRegistration.cpp",
		"Lua/FunctionRegistry.cpp",
		"Lua/LuaUtils.cpp",
		"LuaElementConvertors.cpp",
		"LuaElementConvertor.cpp",
		"Response.cpp",
		"ElementConvertors/BodyConvertor.cpp",
		"ElementConvertors/VCardUpdateConvertor.cpp",
		"ElementConvertors/PubSubEventConvertor.cpp",
		"ElementConvertors/RawXMLElementConvertor.cpp",
		"ElementConvertors/DOMElementConvertor.cpp",
		"ElementConvertors/DefaultElementConvertor.cpp",
		"ElementConvertors/DiscoInfoConvertor.cpp",
		"ElementConvertors/DiscoItemsConvertor.cpp",
		"ElementConvertors/FormConvertor.cpp",
		"ElementConvertors/SoftwareVersionConvertor.cpp",
		"ElementConvertors/VCardConvertor.cpp",
		"ElementConvertors/CommandConvertor.cpp",
		"ClientHelpers.cpp",
		"SluiftClient.cpp",
		"core.c",
		"client.cpp",
		"sluift.cpp"
	]
	sluift_sources += env.SConscript("ElementConvertors/SConscript")

	sluift_env = env.Clone()
	sluift_env.UseFlags(env.get("LUA_FLAGS", {}))
	sluift_env.UseFlags(env["SWIFTEN_FLAGS"])
	sluift_env.UseFlags(env["SWIFTEN_DEP_FLAGS"])
	# Support compilation on both Lua 5.1 and Lua 5.2
	sluift_env.Append(CPPDEFINES = ["LUA_COMPAT_ALL"])
	if sluift_env["PLATFORM"] == "win32" :
		sluift_env.Append(CPPDEFINES = ["SLUIFT_BUILD_DLL"])

	# Generate Version.h
	version_header = "#pragma once\n\n"
	version_header += "#define SLUIFT_VERSION_STRING \"" + Version.getBuildVersion(env.Dir("#").abspath, "sluift") + "\"\n"
	sluift_env.WriteVal("Version.h", sluift_env.Value(version_header))

	# Generate core.c
	def generate_embedded_lua(env, target, source) :
		f = open(source[0].abspath, "r")
		data = f.read()
		f.close()
		data_bytes = bytearray(data)
		f = open(target[0].abspath, "w")
		f.write('#include <stddef.h>\n')
		f.write('const size_t ' + source[0].name.replace(".", "_") + "_size = " + str(len(data_bytes)) + ";\n")
		f.write('const char ' + source[0].name.replace(".", "_") + "[] = {" + ", ".join([str(b) for b in data_bytes]) + "};\n")
		f.close()
	sluift_env.Command("core.c", ["core.lua"], env.Action(generate_embedded_lua, cmdstr="$GENCOMSTR"))

	sluift_env.WriteVal("dll.c", sluift_env.Value(""))

	sluift_sources = [env.File(x) for x in sluift_sources]
	for sluift_variant in ['dll', 'exe'] :
		SConscript(["SConscript.variant"], variant_dir = sluift_variant,
				duplicate = 0,
				exports = ['sluift_sources', 'sluift_variant', 'sluift_env'])