import os

def options(opt):
    opt.load("compiler_c compiler_cxx")

def configure(conf):
    conf.load("compiler_c compiler_cxx")
    conf.env.INCLUDES += ["glcxx/include"]
    conf.env.INCLUDES += ["."]
    conf.env.DEFINES += ['''GLCXX_GL_INCLUDE="GL3/gl3w.h"''']
    conf.env.CXXFLAGS += ["-Wall"]
    conf.env.CXXFLAGS += ["-std=gnu++14"]
    conf.check_cfg(package = "sdl2", args = "--cflags --libs")
    if "MINGW" in os.popen("uname").read():
        # TODO: set CXX to mingw32-g++
        pass
    if os.listdir("glcxx") == []:
        print("Fetching git submodules...")
        from subprocess import Popen
        Popen(["git", "submodule", "update", "--init"]).wait()

def build(bld):
    sources = ["sdl-game-controller.cc"] + \
            bld.path.ant_glob("glcxx/src/**/*.cpp") + \
            bld.path.ant_glob("GL3/**/*.c")

    libs = []
    if "MINGW" in os.popen("uname").read():
        libs += ["opengl32", "mingw32"]
    else:
        libs += ["dl", "GL"]
    bld.program(
            source = sources,
            target = "sdl-game-controller",
            uselib = "SDL2",
            lib = libs,
            linkflags = ["-Wl,-rpath,$ORIGIN"],
            install_path = None)