// Copyright 2019 Sorint.lab
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
// See the License for the specific language governing permissions and
// limitations under the License.

package util

import (
	"github.com/sorintlab/errors"
	"golang.org/x/crypto/bcrypt"
)

func PasswordHash(password string) (string, error) {
	passwordHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
	return string(passwordHash), errors.WithStack(err)
}

func CompareHashAndPassword(passwordHash, password string) (bool, error) {
	if err := bcrypt.CompareHashAndPassword([]byte(passwordHash), []byte(password)); err != nil {
		if errors.Is(err, bcrypt.ErrMismatchedHashAndPassword) {
			return false, nil
		}
		return false, errors.WithStack(err)
	}
	return true, nil
}
