package service

import (
	"pure/global"
	"pure/model"
	"pure/model/response"
)

func GetBannerList() (err error, list []response.BannerListResponse, total int64) {

	db := global.MG_DB.Model(&model.Banner{})

	err = db.Count(&total).Error
	var res []model.Banner

	err = db.Select("id,title,cover_url,relation_id,relation_type,link_type,link,type,status,sort").
		Where("status = ?", "1").
		Order("sort DESC").Find(&res).Error

	if err != nil {
		return err, nil, 0
	}
	for i := 0; i < len(res); i++ {
		//精简字段赋值
		vRes := response.BannerListResponse{
			RelationId:   res[i].RelationId,
			RelationType: res[i].RelationType,
			Title:        res[i].Title,
			CoverUrl:     res[i].CoverUrl,
			LinkType:     res[i].LinkType,
			Link:         res[i].Link,
			Type:         res[i].Type,
			Status:       res[i].Status,
		}
		vRes.ID = res[i].ID
		vRes.SortIndex = i + 1
		list = append(list, vRes)
	}

	return err, list, total
}