package service

import (
	"fonchain-artshow/cmd/dao"
	"fonchain-artshow/cmd/model"
	"fonchain-artshow/pb/test"
	"fonchain-artshow/pkg/serializer"
	"fonchain-artshow/pkg/utils"
	"gorm.io/gorm"
)

func CreateShowApply(in *test.SaveApplyReq) (err error, applyID uint) {
	showApply := serializer.BuildShowApply(in)

	tx, err := dao.SaveShowApply(showApply)
	if err != nil {
		tx.Rollback()
		return
	}
	err = tx.Commit().Error

	// 申请画展包时，暂时不携带画展包信息
	/*	showRels := serializer.BuildShowRel(in.Rel, showApply.ID)
		err = dao.SaveShowRels(tx, showRels)
		if err != nil {
			tx.Rollback()
			return
		}
		err = tx.Commit().Error*/
	return err, showApply.ID
}

func UpdateShowApplyWithShowRel(in *test.SaveApplyReq) (err error, applyID uint) {

	// 更新画展包申请
	showApply := serializer.BuildShowApply(in)
	tx, err := dao.SaveShowApply(showApply)
	if err != nil {
		tx.Rollback()
		return
	}

	// 更新画展包申请关系
	if len(in.Rel) > 0 {
		err, oldShowRelS := dao.QueryShowRelList(showApply.ID) // 查找 旧 show_rel
		if err != nil {
			tx.Rollback()
			return err, showApply.ID
		}

		newShowRelS := serializer.BuildShowRelM(in.Rel, showApply.ID)
		err, newIds := dao.SaveShowRels(tx, newShowRelS) // 保存 新 show_rel

		if len(oldShowRelS) > 0 { // 如果 旧 show_rel 有数据 则 删除 旧记录(去除 保留下来的)
			_, del, _ := utils.BeUniqueSlice_uint(serializer.BuildShowRelIDs(oldShowRelS), newIds)
			if len(del) > 0 {
				err = dao.DelShowRel(tx, del)
				if err != nil {
					tx.Rollback()
					return err, showApply.ID
				}
			}
		}
	}
	err = tx.Commit().Error
	return err, showApply.ID
}

func UpdateShowApplyStatus(in *test.UpdateApplyStatusReq) (err error) {

	// 更新画展包申请 状态
	showApply := &model.ShowApply{
		Model:  gorm.Model{ID: uint(in.ApplyID)},
		Status: int(in.Status),
		Remark: in.Remark,
	}
	tx, err := dao.SaveShowApply(showApply)
	if err != nil {
		tx.Rollback()
		return
	}
	err = tx.Commit().Error
	return
}

func ShowApplyList(in *test.ApplyListReq) (err error, total int64, out []*test.ApplyDetail) {
	out = make([]*test.ApplyDetail, 0)
	err, total, applyList := dao.ShowApplyList(in)
	if err != nil {
		return
	}
	if len(applyList) > 0 {
		for i := 0; i < len(applyList); i++ {
			showApply := serializer.BuildShowApplyRes(applyList[i])
			out = append(out, showApply)
		}
	}
	return
}

func ShowApplyDetail(applyID uint) (err error, out *test.ApplyShowRes) {
	out = new(test.ApplyShowRes)

	err, showApply := dao.ShowApplyDetail(applyID)
	if err != nil {
		return
	}
	out.Apply = serializer.BuildShowApplyRes(showApply)

	err, artShow := dao.ArtShowList_apply(applyID)
	if err != nil {
		return
	}
	out.Show = serializer.BuildArtShowListRes(artShow)
	return
}

func DelApplyByApplyID(in *test.DelApplyReq) (err error) {
	tx, err := dao.DelShowApply(in)
	if err != nil {
		tx.Rollback()
		return
	}

	for i := 0; i < len(in.ApplyID); i++ {
		err = dao.DelShowRelByApplyID(tx, uint(in.ApplyID[i]))
		if err != nil {
			tx.Rollback()
			return
		}
	}
	err = tx.Commit().Error
	return
}

func QueryShowRel(showID uint) (err error, out *model.ShowRel) {
	out = new(model.ShowRel)
	err, out = dao.QueryShowRel(showID)
	if err != nil {
		return err, nil
	}
	return
}