// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 tracer

import (
	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
	"go.opentelemetry.io/otel"
)

var filterFunc = func(info *otelgrpc.InterceptorInfo) bool {
	var fullMethod string
	if info.UnaryServerInfo != nil {
		fullMethod = info.UnaryServerInfo.FullMethod
	} else if info.StreamServerInfo != nil {
		fullMethod = info.StreamServerInfo.FullMethod
	}
	if fullMethod == `/milvus.proto.rootcoord.RootCoord/UpdateChannelTimeTick` ||
		fullMethod == `/milvus.proto.rootcoord.RootCoord/AllocTimestamp` {
		return false
	}
	return true
}

// GetInterceptorOpts returns the Option of gRPC open-tracing
func GetInterceptorOpts() []otelgrpc.Option {
	opts := []otelgrpc.Option{
		otelgrpc.WithTracerProvider(otel.GetTracerProvider()),
		otelgrpc.WithInterceptorFilter(filterFunc),
	}
	return opts
}