import sys
import os

def getCCP4MG_DIR():
        return 'C:\Program Files (x86)\CCP4MG'
def getCCP4I2_DIR():
	target = os.path.join(os.path.realpath(sys.argv[0]),"..")
	abstarget = os.path.abspath(target)
	targetdir = os.path.normpath(os.path.dirname(abstarget))
	return targetdir
	
def setup_pythonpath():
	CCP4I2 = getCCP4I2_DIR()
	sys.path.append(CCP4I2)
	sys.path.append(os.path.join(CCP4I2,"lib"))

def setup_environment():
	ROOT = getCCP4I2_DIR()
	PYTHONHOME=os.path.join(ROOT,"pythondist")
		
	path_sep = ';'
	
	DYLD_FALLBACK_LIBRARY_PATH=ROOT + path_sep + \
		os.path.join(ROOT,"lib")
	

	os.environ["DYLD_FALLBACK_LIBRARY_PATH"] = DYLD_FALLBACK_LIBRARY_PATH
	os.environ["LD_LIBRARY_PATH"] = DYLD_FALLBACK_LIBRARY_PATH
	os.environ["LIBPATH"] = DYLD_FALLBACK_LIBRARY_PATH

	OLDPATH=os.environ["PATH"]
	PATH=os.path.join(ROOT,"bin") + path_sep + os.path.join(ROOT,"pythondist","bin") + path_sep + DYLD_FALLBACK_LIBRARY_PATH + path_sep + OLDPATH
	os.environ["PATH"] = PATH
	os.environ["PYTHONPATH"] = PATH
	if not os.environ.has_key("HOME") or os.environ["HOME"] == "":
		try:
			HOME=os.environ["USERPROFILE"]
			os.environ["HOME"] = HOME
		except:
			pass
		
	os.environ["CCP4MG"] = getCCP4MG_DIR()
	os.environ["CCP4I2"] = ROOT
	os.environ["CCP4I2_TOP"] = ROOT
	os.environ["PYTHONHOME"] = PYTHONHOME


if __name__ == '__main__':
	setup_environment()
	ccp4i2 = getCCP4I2_DIR()
	mainpy = os.path.join("bin","browser.py")
	import subprocess
       	args = ["python",mainpy]
	for sysarg in sys.argv[1:]:
		args.append(sysarg)
	retval = subprocess.call(args)

	print "Finished"