opus.detect = Munch()

def _detectOS(osPath):
	opus.main.output("detecting OS at " +osPath+ "...")
	
	osInfo = Munch()
	osInfo.version = Munch()
	osInfo.version.major = 0
	osInfo.version.minor = 0
	osInfo.tags = []
	
	opus.reg.mount(pJoin(osPath,"Windows","System32","config","SOFTWARE"))
	osInfo.version.key = opus.reg.getKey(opus.reg.path + opus.reg.sep + "Microsoft" +opus.reg.sep+ "Windows NT" +opus.reg.sep + "CurrentVersion")
	opus.reg.unmount()
	
	try:
		osInfo.version.major = int(osInfo.version.key.CurrentMajorVersionNumber.value)
		osInfo.version.minor = int(osInfo.version.key.CurrentMinorVersionNumber.value)
	except:
		version = osInfo.version.key.CurrentVersion.value
		osInfo.version.major = int(version.split(".")[0])
		osInfo.version.minor = int(version.split(".")[1])
	
	osInfo.version.string = str(osInfo.version.major) + "." + str(osInfo.version.minor)
	if osInfo.version.string == "0.0": raise Exception("version unknown")
	opus.main.output("\ndetected: Windows NT " +osInfo.version.string,1)
	
	if osInfo.version.major > 5 and osInfo.version.major < 11: osInfo.tags.append("longhorn-series")
	if osInfo.version.string == "6.0": osInfo.tags.append("vista")
	if osInfo.version.string == "6.1": osInfo.tags.append("seven")
	if osInfo.version.string == "6.2": osInfo.tags.append("eight")
	if osInfo.version.string == "6.3": osInfo.tags.append("eightone"); osInfo.tags.append("nine")
	if osInfo.version.string == "10.0": osInfo.tags.append("ten")
	
	opus.main.output("tags: " +str(osInfo.tags),1)
	return osInfo
	
opus.detect.os = _detectOS