import Version, os.path

Import(["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",
        "ElementConvertors/StatusConvertor.cpp",
        "ElementConvertors/StatusShowConvertor.cpp",
        "ElementConvertors/DelayConvertor.cpp",
        "Helpers.cpp",
        "SluiftClient.cpp",
        "SluiftComponent.cpp",
        "Watchdog.cpp",
        "core.c",
        "client.cpp",
        "component.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"])

    if sluift_env["PLATFORM"] == "darwin" and os.path.isdir("/Applications/iTunes.app") :
        sluift_env.Append(FRAMEWORKS = ["ScriptingBridge"])
        sluift_env.Command("iTunes.h", "/Applications/iTunes.app", 
                "sdef ${SOURCE} | sdp -fh --basename iTunes -V 10.10 -o ${TARGET.dir}")
        sluift_env.Append(CPPDEFINES = ["HAVE_ITUNES"])
        sluift_sources += ["ITunesInterface.mm"]

    # 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()
        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)) + ";\n")
        f.write('const char ' + source[0].name.replace(".", "_") + "[] = {" + ", ".join([str(ord(c)) for c in data]) + "};\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'])