package api

import (
	"yunyan/comm"
	"yunyan/lego/sys/log"
	"yunyan/pb"
)

// RevokeProductionBatch 撤销一个生产批次：
// 1. 校验批次存在且归属指定产品；
// 2. 该批次中若已有任意一个授权码被使用（status>0 或 uid 非空），拒绝撤销；
// 3. 删除该批次全部授权码 + 删除批次台账记录。
//
// 注意：不回退 product.serialcursor（已分发出去的序号区间不重复利用，避免与历史导出冲突）。
func (this *apiComp) RevokeProductionBatch(session comm.IUserSession, req *pb.ApiRevokeProductionBatchReq) (resp *pb.ApiRevokeProductionBatchResp, errdata *pb.ErrorData) {
	if req.Productid == 0 || req.Batchno == "" {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_ReqParameterError,
			Message: "productid/batchno 不能为空",
		}
		return
	}

	batch, err := this.module.model.productionbatch(req.Batchno)
	if err != nil || batch == nil || batch.Productid != req.Productid {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_DBError,
			Message: "未找到指定生产批次",
		}
		return
	}

	used, err := this.module.model.countUsedAuthCodesByBatch(req.Productid, req.Batchno)
	if err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		this.module.Error("RevokeProductionBatch count used Fail!", log.Field{Key: "err", Value: err.Error()})
		return
	}
	if used > 0 {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_ReqParameterError,
			Message: "该批次已有授权码被激活/绑定，无法撤销",
		}
		return
	}

	affected, err := this.module.model.delAuthCodesByBatch(req.Productid, req.Batchno)
	if err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		this.module.Error("RevokeProductionBatch delete authcodes Fail!", log.Field{Key: "err", Value: err.Error()})
		return
	}

	if err = this.module.model.delproductionbatch(req.Batchno); err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		this.module.Error("RevokeProductionBatch delete batch Fail!", log.Field{Key: "err", Value: err.Error()})
		return
	}

	this.module.Info("RevokeProductionBatch ok",
		log.Field{Key: "operator", Value: session.GetUserId()},
		log.Field{Key: "productid", Value: req.Productid},
		log.Field{Key: "batchno", Value: req.Batchno},
		log.Field{Key: "deleted", Value: affected})

	resp = &pb.ApiRevokeProductionBatchResp{Deleted: uint32(affected)}
	return
}