/*
 * 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 main

import (
	"context"
	"net"

	"github.com/cloudwego/hertz-examples/opentelemetry/kitex/kitex_gen/api"
	"github.com/cloudwego/hertz-examples/opentelemetry/kitex/kitex_gen/api/echo"
	"github.com/cloudwego/kitex/pkg/klog"
	"github.com/cloudwego/kitex/pkg/rpcinfo"
	"github.com/cloudwego/kitex/server"
	kitexlogrus "github.com/kitex-contrib/obs-opentelemetry/logging/logrus"
	"github.com/kitex-contrib/obs-opentelemetry/provider"
	"github.com/kitex-contrib/obs-opentelemetry/tracing"
)

var _ api.Echo = &EchoImpl{}

// EchoImpl implements the last service interface defined in the IDL.
type EchoImpl struct{}

// Echo implements the Echo interface.
func (s *EchoImpl) Echo(ctx context.Context, req *api.Request) (resp *api.Response, err error) {
	klog.CtxInfof(ctx, "echo called %s", req.Message)
	return &api.Response{Message: req.Message}, nil
}

func main() {
	klog.SetLogger(kitexlogrus.NewLogger())
	klog.SetLevel(klog.LevelDebug)

	serviceName := "demo-kitex-server"

	p := provider.NewOpenTelemetryProvider(
		provider.WithServiceName(serviceName),
		provider.WithExportEndpoint("localhost:4317"),
		provider.WithInsecure(),
	)
	defer p.Shutdown(context.Background())

	addr, err := net.ResolveTCPAddr("tcp", ":8181")
	if err != nil {
		panic(err)
	}
	svr := echo.NewServer(
		new(EchoImpl),
		server.WithServiceAddr(addr),
		server.WithSuite(tracing.NewServerSuite()),
		server.WithServerBasicInfo(&rpcinfo.EndpointBasicInfo{ServiceName: serviceName}),
	)
	if err := svr.Run(); err != nil {
		klog.Fatalf("server stopped with error:", err)
	}
}
