// Copyright 2019, OpenCensus 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 collector

import (
	"flag"

	"github.com/jaegertracing/jaeger/pkg/healthcheck"
	"github.com/spf13/viper"
	"go.uber.org/zap"
)

const (
	healthCheckHTTPPort = "health-check-http-port"
)

func healthCheckFlags(flags *flag.FlagSet) {
	flags.Uint(healthCheckHTTPPort, 13133, "Port on which to run the healthcheck http server.")
}

func newHealthCheck(v *viper.Viper, logger *zap.Logger) (*healthcheck.HealthCheck, error) {
	return healthcheck.New(
		healthcheck.Unavailable, healthcheck.Logger(logger),
	).Serve(v.GetInt(healthCheckHTTPPort))
}
