// Copyright 2022 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

package proxy

import (
	"context"
	"log"
	"net"

	"github.com/cloudwego/kitex-examples/grpcproxy/kitex_gen/grpcproxy"
	"github.com/cloudwego/kitex-examples/grpcproxy/kitex_gen/grpcproxy/serviceproxy"
	"github.com/cloudwego/kitex/pkg/streaming"
	"github.com/cloudwego/kitex/server"
)

func RunProxyServer(hostport string, unknownHandler func(ctx context.Context, methodName string, stream streaming.Stream) error) {
	addr, _ := net.ResolveTCPAddr("tcp", hostport)
	svr := serviceproxy.NewServer(new(grpcproxy.ServiceProxy), server.WithGRPCUnknownServiceHandler(unknownHandler), server.WithServiceAddr(addr))
	err := svr.Run()
	if err != nil {
		log.Println(err.Error())
	}
}

var (
	Ip      = "localhost:8888"
	ProxyIp = "localhost:50051"
)

func Resolve(methodName string) (network, address string) {
	// Find address by given methodName
	// Implement your own proxy logic here
	// .....

	network = "tcp"
	address = Ip

	return
}
