package topical

import (
	"errors"
	"gofiber.study.skcks.cn/global"
	"gofiber.study.skcks.cn/logger"
	"gofiber.study.skcks.cn/model/generic/models"
	"gofiber.study.skcks.cn/model/topical"
	"strconv"
)

type Service struct {
}

var Services *Service

func InitService() {
	Services = &Service{}
}

var (
	NotExist = errors.New("主题不存在")
)

func (s *Service) CreateTopical(dto topical.CreateTopicalDTO, userId string) error {
	id, _ := global.SonyFlake.NextID()
	_, err := global.DataSources.Insert(&models.Topical{
		Id:          strconv.FormatUint(id, 10),
		Active:      true,
		Content:     dto.Content,
		ModifyTimes: 0,
		Title:       dto.Title,
		UserId:      userId,
	})

	if err != nil {
		return err
	}

	return nil
}

func (s *Service) DeleteTopical(dto topical.DeleteTopicalDTO) error {
	t := &models.Topical{
		Id: dto.Id,
	}

	logger.Logger().Infof("%#v", t)

	exist, err := global.DataSources.Get(t)
	if err != nil {
		return err
	}

	if !exist {
		return NotExist
	}

	_, err = global.DataSources.Limit(1).Delete(t)
	if err != nil {
		return err
	}

	return nil
}