// Copyright 2018 Gin Core Team.  All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.

package render

import (
	"net/http"

	"github.com/golang/protobuf/proto"
)

type ProtoBuf struct {
	Data proto.Message
}

var protobufContentType = []string{"application/x-protobuf"}

func (r ProtoBuf) Render(w http.ResponseWriter) error {
	r.WriteContentType(w)

	bytes, err := proto.Marshal(r.Data)
	if err != nil {
		return err
	}

	w.Write(bytes)
	return nil
}

func (r ProtoBuf) WriteContentType(w http.ResponseWriter) {
	writeContentType(w, protobufContentType)
}