package logic import ( "context" "errors" "time" "bj_power_mes/ent" "bj_power_mes/ent/plcsendlog" ) type PlcSendReq struct { OrderNo string `json:"orderNo"` Sn string `json:"sn"` StationNo int `json:"stationNo"` ProcessCombination string `json:"processCombination"` // 如 "135" } // SendProcess 下发 PLC 工序码。 // 约束:上一条工序未收到完成信号,不下发下一条(模拟 S7 握手)。 func (s *Service) SendProcess(ctx context.Context, req PlcSendReq, operator string) (*ent.PlcSendLog, error) { if req.ProcessCombination == "" { return nil, errors.New("工位组合不能为空") } // 检查是否存在未完成的同工位下发 last, err := s.ctx.EntClient.PlcSendLog.Query(). Where(plcsendlog.Status("SENT")).Order(plcsendlog.ByID()).First(ctx) if err == nil && last != nil { done, qErr := s.ctx.PLC.Get().QueryDone(ctx) if qErr != nil || !done { return nil, errors.New("上一条工序尚未收到PLC完成信号,不能下发下一条") } // 标记上一条为完成 _, _ = s.ctx.EntClient.PlcSendLog.UpdateOneID(last.ID). SetStatus("DONE").SetDoneTime(time.Now()).SetAck(true).Save(ctx) } now := time.Now() rec, err := s.ctx.EntClient.PlcSendLog.Create(). SetOrderNo(req.OrderNo).SetSn(req.Sn).SetStationNo(req.StationNo). SetProcessCombination(req.ProcessCombination).SetProcessCodes(ParseProcessSeq(req.ProcessCombination)). SetStatus("SENT").SetSendTime(now).SetOperator(operator).Save(ctx) if err != nil { return nil, err } // 模拟下行下发 _, err = s.ctx.PLC.Get().SendProcessCode(ctx, req.ProcessCombination) if err != nil { return nil, err } s.ctx.EventLog.Write(ctx, "plc.send", req.OrderNo, operator, "plc_send_log", req.Sn, "工位组合下发", map[string]any{"combination": req.ProcessCombination}) // mock 完成信号:延时后置为完成(演示"未完成不下发下一条"握手) go func(id int) { time.Sleep(5 * time.Second) s.ctx.PLC.Get().AckDone(context.Background(), true) _, _ = s.ctx.EntClient.PlcSendLog.UpdateOneID(id). SetStatus("DONE").SetDoneTime(time.Now()).SetAck(true).Save(context.Background()) }(rec.ID) return rec, nil } // ListPlcSendLogs 查询 PLC 下发日志 func (s *Service) ListPlcSendLogs(ctx context.Context, orderNo, status string) ([]*ent.PlcSendLog, error) { q := s.ctx.EntClient.PlcSendLog.Query() if orderNo != "" { q = q.Where(plcsendlog.OrderNo(orderNo)) } if status != "" { q = q.Where(plcsendlog.Status(status)) } return q.Order(ent.Desc(plcsendlog.FieldID)).All(ctx) }