package items

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
	cfg "go_dreamfactory/sys/configure/structs"

	"google.golang.org/protobuf/proto"
)

//参数校验
func (this *apiComp) UseitemCheck(session comm.IUserSession, req *pb.ItemsUseItemReq) (code pb.ErrorCode) {
	if req.GridId == "" || req.Amount <= 0 {
		code = pb.ErrorCode_ReqParameterError
	}
	return
}

//使用道具
func (this *apiComp) Useitem(session comm.IUserSession, req *pb.ItemsUseItemReq) (code pb.ErrorCode, data proto.Message) {
	var (
		err    error
		item   *pb.DB_UserItemData
		itemcf *cfg.Game_itemData
	)
	if code = this.UseitemCheck(session, req); code != pb.ErrorCode_Success {
		return
	}
	if item, err = this.module.modelItems.QueryUserPackByGridId(session.GetUserId(), req.GridId); err != nil {
		code = pb.ErrorCode_ReqParameterError
		return
	}
	if itemcf, err = this.module.configure.GetItemConfigure(item.ItemId); err != nil {
		code = pb.ErrorCode_ConfigurationException
		return
	}
	switch itemcf.Usetype {
	case 4:
		sale := make([]*cfg.Game_atn, len(itemcf.Sale))
		for i, v := range itemcf.Sale {
			sale[i] = v
			sale[i].N = v.N * int32(req.Amount)
		}
		if code = this.module.DispenseRes(session, sale, true); code != pb.ErrorCode_Success {
			return
		}
		break
	default:
		code = pb.ErrorCode_ItemsUseNotSupported
		return
	}
	item.Amount = item.Amount - req.Amount
	if item.Amount == 0 {
		if err = this.module.modelItems.DelUserPack(session.GetUserId(), item.GridId); err != nil {
			code = pb.ErrorCode_DBError
			return
		}
	} else {
		if err = this.module.modelItems.UpdateUserPack(session.GetUserId(), item); err != nil {
			code = pb.ErrorCode_DBError
			return
		}
	}
	session.SendMsg(string(this.module.GetType()), "useitem", &pb.ItemsUseItemResp{GridId: req.GridId, Amount: req.Amount, Issucc: true})
	return
}