// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.

package storagenode

import (
	"fmt"
	"regexp"

	"go.uber.org/zap"
)

// OperatorConfig defines properties related to storage node operator metadata
type OperatorConfig struct {
	Email  string `user:"true" help:"operator email address" default:""`
	Wallet string `user:"true" help:"operator wallet address" default:""`
}

// Verify verifies whether operator config is valid.
func (c OperatorConfig) Verify(log *zap.Logger) error {
	if err := isOperatorEmailValid(log, c.Email); err != nil {
		return err
	}
	if err := isOperatorWalletValid(log, c.Wallet); err != nil {
		return err
	}
	return nil
}

func isOperatorEmailValid(log *zap.Logger, email string) error {
	if email == "" {
		log.Sugar().Warn("Operator email address isn't specified.")
	} else {
		log.Sugar().Info("Operator email: ", email)
	}
	return nil
}

func isOperatorWalletValid(log *zap.Logger, wallet string) error {
	if wallet == "" {
		return fmt.Errorf("operator wallet address isn't specified")
	}
	r := regexp.MustCompile("^0x[a-fA-F0-9]{40}$")
	if match := r.MatchString(wallet); !match {
		return fmt.Errorf("operator wallet address isn't valid")
	}

	log.Sugar().Info("operator wallet: ", wallet)
	return nil
}