package services

import (
	"errors"
	"gobeyhan/database"
	"gobeyhan/database/models"

	"gorm.io/gorm"
)

type PermissionService struct{}

func NewPermissionService() *PermissionService {
	return &PermissionService{}
}

// GetAllPermissions retrieves all permissions
func (s *PermissionService) GetAllPermissions() ([]models.Permission, error) {
	var permissions []models.Permission
	err := database.DB.Find(&permissions).Error
	return permissions, err
}

// GetPermissionByID retrieves a permission by ID
func (s *PermissionService) GetPermissionByID(id uint64) (*models.Permission, error) {
	var permission models.Permission
	err := database.DB.First(&permission, id).Error

	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		}
		return nil, err
	}

	return &permission, nil
}

// CreatePermission creates a new permission
func (s *PermissionService) CreatePermission(permission *models.Permission) error {
	return database.DB.Create(permission).Error
}