package services

import (
	"app/internal/dal"
	"app/internal/database"
	"app/internal/models"
	"errors"

	"gorm.io/gen/field"
	"gorm.io/gorm"
)

type PostTypeService struct {
}
type PostType = models.PostType

func (service *PostTypeService) Create(item PostType) (PostType, error) {
	ReplaceEmptySlicesWithNil(&item)
	err := dal.PostType.Preload(field.Associations).Create(&item)
	if err != nil {
		return item, err
	}
	err = AppendAssociations(database.GetInstance(), &item)
	return item, err
}
func (service *PostTypeService) GetAll() ([]*PostType, error) {
	var posttypes []*PostType
	posttypes, err := dal.PostType.Preload(field.Associations).Find()
	return posttypes, err
}
func (service *PostTypeService) GetById(id uint) (*PostType, error) {
	item, err := dal.PostType.Preload(field.Associations).Where(dal.PostType.Id.Eq(id)).First()
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, nil
		} else {
			return nil, err
		}
	}
	return item, nil
}
func (service *PostTypeService) Update(item PostType) (PostType, error) {
	ReplaceEmptySlicesWithNil(&item)
	err := dal.PostType.Preload(field.Associations).Save(&item)
	if err != nil {
		return item, err
	}
	err = UpdateAssociations(database.GetInstance(), &item)
	if err != nil {
		return item, err
	}
	return item, err
}
func (service *PostTypeService) Delete(id uint) error {
	_, err := dal.PostType.Unscoped().Where(dal.PostType.Id.Eq(id)).Delete()
	return err
}
func (service *PostTypeService) Count() (int64, error) {
	amount, err := dal.PostType.Count()
	return amount, err
}