ylink/core/inner/rpc/internal/svc/servicecontext.go

package svc

import (
	"context"
	"encoding/json"
	"github.com/Shopify/sarama"
	"github.com/bytedance/sonic"
	"github.com/liyue201/gostl/ds/list/simplelist"
	treemap "github.com/liyue201/gostl/ds/map"
	"github.com/zeromicro/go-zero/core/logx"
	"go.opentelemetry.io/otel/attribute"
	"io/ioutil"
	"ylink/comm/kafka"
	"ylink/comm/model"
	"ylink/comm/trace"
	"ylink/core/inner/rpc/internal/config"
	"ylink/core/inner/rpc/internal/ext"
)

type ServiceContext struct {
	Config           config.Config
	KqMsgBoxProducer *kafka.Producer
	KqCmdBoxProducer *kafka.Producer
	ConsumerGroup    *kafka.ConsumerGroup
}

func NewServiceContext(c config.Config) *ServiceContext {
	svcCtx := &ServiceContext{
		Config:           c,
		KqMsgBoxProducer: kafka.NewKafkaProducer(c.KqMsgBoxProducerConf.Brokers, c.KqMsgBoxProducerConf.Topic),
		KqCmdBoxProducer: kafka.NewKafkaProducer(c.KqCmdBoxProducerConf.Brokers, c.KqCmdBoxProducerConf.Topic),
		ConsumerGroup: kafka.NewConsumerGroup(&kafka.ConsumerGroupConfig{
			KafkaVersion:   sarama.V1_0_0_0,
			OffsetsInitial: sarama.OffsetNewest,
			IsReturnErr:    false,
		},
			c.KqMsgBoxConsumerConf.Brokers,
			[]string{c.KqMsgBoxConsumerConf.Topic},
			c.KqMsgBoxConsumerConf.GroupId),
	}
	go svcCtx.subscribe()
	fetchCsCenterInfo(c)
	return svcCtx
}

func (s *ServiceContext) Setup(_ sarama.ConsumerGroupSession) error {
	return nil
}

func (s *ServiceContext) Cleanup(_ sarama.ConsumerGroupSession) error {
	return nil
}

func (s *ServiceContext) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
	for msg := range claim.Messages() {
		if msg.Topic == s.Config.KqMsgBoxConsumerConf.Topic {
			s.handleMessage(sess, msg)
		}
	}
	return nil
}

func (s *ServiceContext) handleMessage(sess sarama.ConsumerGroupSession, msg *sarama.ConsumerMessage) {
	traceId := kafka.GetTraceFromHeader(msg.Headers)
	if len(traceId) == 0 {
		return
	}
	trace.RunOnTracing(traceId, func(ctx context.Context) {
		var message model.KqMessage
		if err := json.Unmarshal(msg.Value, &message); err != nil {
			logx.WithContext(ctx).Errorf("unmarshal msg error: %v", err)
			return
		}
		logx.WithContext(ctx).Infof("handle message: %s", msg.Value)
		trace.StartTrace(ctx, "InnerServer.handleMessage.SendMessage", func(ctx context.Context) {
			if len(message.ReceiverId) == 0 || message.ReceiverId == "" {
				// 玩家发的消息，先从connMap找对应的客服，没有则从vipMap找，都没有则丢弃信息不投递
				if ext.GameConnectedMap.Contains(message.GameId) {
					// 先从connMap找对应的客服映射
					if playerConnMap := ext.GameConnectedMap.Get(message.GameId).(*treemap.Map); playerConnMap.Contains(message.SenderId) {
						message.ReceiverId = playerConnMap.Get(message.SenderId).(string)
					} else {
						if ext.GameVipMap.Contains(message.GameId) {
							// 从vipMap里面找
							if playerVipMap := ext.GameVipMap.Get(message.GameId).(*treemap.Map); playerVipMap.Contains(message.SenderId) {
								message.ReceiverId = playerVipMap.Get(message.SenderId).(string)
							} else {
								message.ReceiverId = ""
							}
						} else {
							message.ReceiverId = ""
						}
					}
				} else {
					if ext.GameVipMap.Contains(message.GameId) {
						// 从vipMap里面找
						if playerVipMap := ext.GameVipMap.Get(message.GameId).(*treemap.Map); playerVipMap.Contains(message.SenderId) {
							message.ReceiverId = playerVipMap.Get(message.SenderId).(string)
						} else {
							message.ReceiverId = ""
						}
					} else {
						message.ReceiverId = ""
					}
				}

				// 经过填补后receiver_id还是空的则有异常，丢弃信息不投递
				if len(message.ReceiverId) != 0 && message.ReceiverId != "" {
					logx.WithContext(ctx).Infof("receiver: %s", message.ReceiverId)
					kMsg, _ := json.Marshal(message)
					s.KqMsgBoxProducer.SendMessage(ctx, string(kMsg), message.ReceiverId)
				} else {
					logx.WithContext(ctx).Errorf("can not find receiver of the sender")
				}
			} else {
				s.KqMsgBoxProducer.SendMessage(ctx, string(msg.Value), message.ReceiverId)
			}
			sess.MarkMessage(msg, "")
		}, attribute.String("msg.key", string(msg.Key)))
	})
}

func (s *ServiceContext) subscribe() {
	go s.ConsumerGroup.RegisterHandleAndConsumer(s)
}

func fetchCsCenterInfo(c config.Config) {
	// mock info
	ext.CsInfoMap = treemap.New(treemap.WithGoroutineSafe())
	ext.GameVipMap = treemap.New(treemap.WithGoroutineSafe())
	ext.GameOnlinePlayerMap = treemap.New(treemap.WithGoroutineSafe())
	ext.GameConnectedMap = treemap.New(treemap.WithGoroutineSafe())
	ext.WaitingQueue = simplelist.New()
	go loadMockInfo(c)
}
func loadMockInfo(c config.Config) {
	// 加载游戏列表
	logx.Info("加载游戏列表")
	var gameIds []string
	gameIdsData, err := ioutil.ReadFile(c.MockFolder + "/game_id.json")
	if err != nil {
		logx.Errorf("parse game_id.json has some error: %v", err)
		return
	}
	if err := sonic.Unmarshal(gameIdsData, &gameIds); err != nil {
		return
	}

	// 加载vip玩家信息
	logx.Info("加载vip玩家信息")
	for _, gameId := range gameIds {
		vipPlayerMap := treemap.New(treemap.WithGoroutineSafe())
		var playerInfos []*model.PlayerInfo
		playerInfosData, _ := ioutil.ReadFile(c.MockFolder + "/" + gameId + ".json")
		if err := sonic.Unmarshal(playerInfosData, &playerInfos); err != nil {
			return
		}
		for _, playerInfo := range playerInfos {
			vipPlayerMap.Insert(playerInfo.PlayerId, playerInfo)
		}
		ext.GameVipMap.Insert(gameId, vipPlayerMap)
	}

	// 加载客服信息
	logx.Info("加载客服信息")
	var csInfos []*model.CsInfo
	csInfosData, err := ioutil.ReadFile(c.MockFolder + "/cs_info.json")
	if err := sonic.Unmarshal(csInfosData, &csInfos); err != nil {
		return
	}
	for _, csInfo := range csInfos {
		ext.CsInfoMap.Insert(csInfo.CsId, csInfo)
	}
}