// password.go
package crypto

import "golang.org/x/crypto/bcrypt"

type PasswordHashService struct {
}

func NewPasswordHashService() *PasswordHashService {
	return &PasswordHashService{}
}

// Hash 使用 bcrypt 算法对密码进行加密
func (s *PasswordHashService) Hash(password string) (string, error) {
	if password == "" {
		return "", nil
	}

	hashedBytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
	if err != nil {
		return "", err
	}

	return string(hashedBytes), nil
}

// Verify 验证密码是否匹配
func (s *PasswordHashService) Verify(password, hash string) bool {
	if password == "" || hash == "" {
		return false
	}

	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
	return err == nil
}