package services

import (
	"gitea.zjmud.com/phyer/rbac/models"
	"gitea.zjmud.com/phyer/rbac/repositories"
	"gorm.io/gorm"
)

type AuthService struct {
	userRepo repositories.UserRepository
}

func NewAuthService(db *gorm.DB) *AuthService {
	return &AuthService{
		userRepo: repositories.NewUserRepository(db),
	}
}

func (s *AuthService) Authenticate(username, password string) (*models.User, error) {
	user, err := s.userRepo.FindByUsername(username)
	if err != nil {
		return nil, err
	}

	hashedPassword, err := models.HashPassword(password)
	if err != nil || string(hashedPassword) != user.Password {
		return nil, ErrInvalidCredentials
	}

	return user, nil
}