dcg/game/mq/coin_transfer.go

package mq

import (
	"dcg/game/manager"
	"dcg/game/pb"
	pbCommon "dcg/game/pb/common"
	pbMq "dcg/game/pb/mq"
	"dcg/game/svc"
	kfk "dcg/pkg/kafka"
	"git.noahlan.cn/northlan/ntools-go/kafka"
	"git.noahlan.cn/northlan/ntools-go/logger"
	"github.com/Shopify/sarama"
	"github.com/golang/protobuf/proto"
)

type CoinTransferHandler struct {
	svcCtx        *svc.ServiceContext
	msgHandle     map[string]kafkaMsgHandlerFunc
	ConsumerGroup *kafka.ConsumerGroup
}

func (h *CoinTransferHandler) Init(svcCtx *svc.ServiceContext) {
	h.svcCtx = svcCtx
	cfg := svcCtx.Config.Kafka.UserCoin
	h.msgHandle = make(map[string]kafkaMsgHandlerFunc)
	h.msgHandle[cfg.Topic] = h.handleTopic

	var err error
	h.ConsumerGroup, err = kafka.NewConsumerGroup(&kafka.ConsumerGroupConfig{
		KafkaVersion:   sarama.V3_1_0_0,
		OffsetsInitial: sarama.OffsetNewest,
		IsReturnErr:    false,
		UnMarshaler:    kfk.ProtobufMarshaler,
	}, cfg.Addr, []string{cfg.Topic}, cfg.ConsumerGroup)

	if err != nil {
		logger.SLog.Error(err)
	}
}

func (h *CoinTransferHandler) handleTopic(data []byte, _ string) {
	// msg proto
	var msgFromMq pbMq.MqUserCoinChanged
	err := proto.Unmarshal(data, &msgFromMq)
	if err != nil {
		logger.SLog.Error("unmarshal msg err", err)
		return
	}
	manager.GameManager.Broadcast(pb.PushCoinChanged, &pbCommon.UserCoinChangedMsg{
		User: &pbCommon.PbUser{
			UserId:   msgFromMq.UserId,
			Username: msgFromMq.Username,
			Avatar:   msgFromMq.Avatar,
			Platform: "bilibili", // TODO 平台
		},
		Reason:  msgFromMq.Reason,
		Change:  msgFromMq.Change,
		Current: msgFromMq.Current,
	})
}

func (CoinTransferHandler) Setup(_ sarama.ConsumerGroupSession) error   { return nil }
func (CoinTransferHandler) Cleanup(_ sarama.ConsumerGroupSession) error { return nil }
func (h *CoinTransferHandler) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
	for msg := range claim.Messages() {
		//logger.SLog.Infow("kafka get info to mysql", "msgTopic", msg.Topic, "msgPartition", msg.Partition, "msg", string(msg.Value))
		if hFunc, ok := h.msgHandle[msg.Topic]; ok {
			hFunc(msg.Value, string(msg.Key))
		}
		sess.MarkMessage(msg, "")
	}
	return nil
}