package stream_client

import (
	"common/log"
	"common/net/grpc/service"
	"context"
	"google.golang.org/grpc"
)

var sceneServerM map[int64]map[SceneFun]grpc.ClientStream // map[sid]map[方法名]流连接

type SceneFun int

const (
	FunAction SceneFun = iota
)

func FindSceneBySID(sid int64, fun SceneFun) grpc.ClientStream {
	g := sceneServerM[sid]
	if g == nil {
		g = make(map[SceneFun]grpc.ClientStream)
		sceneServerM[sid] = g
	}
	sceneLink := g[fun]
	if sceneLink == nil {
		sceneClient, err := service.SceneNewClient(sid)
		if err != nil {
			log.Errorf("cannot find sceneClient: %v", err)
			return nil
		}
		var link grpc.ClientStream
		switch fun {
		case FunAction:
			link, err = sceneClient.Action(context.Background())
		}
		if err != nil {
			log.Errorf("FindSceneBySID %v err: %v, sid: %v", fun, err, sid)
			return nil
		}
		g[fun] = link
		sceneLink = link
	}
	return sceneLink
}