import os
import sys


def is_active():
    return True


def get_name():
    return "OSX"


def can_build():

    if (sys.platform == "darwin" or ("OSXCROSS_ROOT" in os.environ)):
        return True

    return False


def get_opts():

    return [
        ('force_64_bits', 'Force 64 bits binary', 'no'),
        ('osxcross_sdk', 'OSXCross SDK version', 'darwin14'),

    ]


def get_flags():

    return [
    ]


def configure(env):

    env.Append(CPPPATH=['#platform/osx'])

    if (env["bits"] == "default"):
        env["bits"] = "32"

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

        env.Append(CCFLAGS=['-O2', '-ffast-math', '-fomit-frame-pointer', '-ftree-vectorize', '-msse2'])

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

        env.Append(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])

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

        env.Append(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])

    if ("OSXCROSS_ROOT" not in os.environ):
        # regular native build
        if (env["bits"] == "64"):
            env.Append(CCFLAGS=['-arch', 'x86_64'])
            env.Append(LINKFLAGS=['-arch', 'x86_64'])
        elif (env["bits"] == "32"):
            env.Append(CCFLAGS=['-arch', 'i386'])
            env.Append(LINKFLAGS=['-arch', 'i386'])
        else:
            env.Append(CCFLAGS=['-arch', 'i386', '-arch', 'x86_64'])
            env.Append(LINKFLAGS=['-arch', 'i386', '-arch', 'x86_64'])
    else:
        # osxcross build
        root = os.environ.get("OSXCROSS_ROOT", 0)
        if env["bits"] == "fat":
            basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"
            env.Append(CCFLAGS=['-arch', 'i386', '-arch', 'x86_64'])
            env.Append(LINKFLAGS=['-arch', 'i386', '-arch', 'x86_64'])
        elif env["bits"] == "32":
            basecmd = root + "/target/bin/i386-apple-" + env["osxcross_sdk"] + "-"
        else: # 64-bit, default
            basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"

        env['CC'] = basecmd + "cc"
        env['CXX'] = basecmd + "c++"
        env['AR'] = basecmd + "ar"
        env['RANLIB'] = basecmd + "ranlib"
        env['AS'] = basecmd + "as"

    env.Append(CPPFLAGS=["-DAPPLE_STYLE_KEYS"])
    env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DGLES2_ENABLED', '-DOSX_ENABLED'])
    env.Append(CPPFLAGS=["-mmacosx-version-min=10.9"])
    env.Append(LIBS=['pthread'])
    #env.Append(CPPFLAGS=['-F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks', '-isysroot', '/Developer/SDKs/MacOSX10.4u.sdk', '-mmacosx-version-min=10.4'])
    #env.Append(LINKFLAGS=['-mmacosx-version-min=10.4', '-isysroot', '/Developer/SDKs/MacOSX10.4u.sdk', '-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk'])
    env.Append(LINKFLAGS=['-framework', 'Cocoa', '-framework', 'Carbon', '-framework', 'OpenGL', '-framework', 'AGL', '-framework', 'AudioUnit', '-framework', 'CoreAudio', '-lz', '-framework', 'IOKit', '-framework', 'ForceFeedback'])
    env.Append(LINKFLAGS=["-mmacosx-version-min=10.9"])

    if (env["CXX"] == "clang++"):
        env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
        env["CC"] = "clang"
        env["LD"] = "clang++"

    import methods

    env.Append(BUILDERS={'GLSL120': env.Builder(action=methods.build_legacygl_headers, suffix='glsl.gen.h', src_suffix='.glsl')})
    env.Append(BUILDERS={'GLSL': env.Builder(action=methods.build_glsl_headers, suffix='glsl.gen.h', src_suffix='.glsl')})
    env.Append(BUILDERS={'GLSL120GLES': env.Builder(action=methods.build_gles2_headers, suffix='glsl.gen.h', src_suffix='.glsl')})
    #env.Append( BUILDERS = { 'HLSL9' : env.Builder(action = methods.build_hlsl_dx9_headers, suffix = 'hlsl.gen.h',src_suffix = '.hlsl') } )

    env["x86_libtheora_opt_gcc"] = True