package googauth

import "github.com/dgryski/dgoogauth"

const windowSize = 30
const hotpWindowSize = 5

var HotpCfg = dgoogauth.OTPConfig{
	Secret:      "MRSHM6LTMFYHAMJSGM2DKNQ=",
	HotpCounter: 1,
	WindowSize:  hotpWindowSize,
}

func New(secret string, name string) string {
	cfg := &dgoogauth.OTPConfig{
		Secret:     secret,
		WindowSize: windowSize,
	}
	return cfg.ProvisionURI(name)
}

func Verify(secret string, pwd string) (bool, error) {
	cfg := &dgoogauth.OTPConfig{
		Secret:     secret,
		WindowSize: windowSize,
	}
	return cfg.Authenticate(pwd)
}

func VerifyHotp(cfg *dgoogauth.OTPConfig, authCode string, counter int) (bool, error) {
	return cfg.Authenticate(authCode)
}