/*
 * =========================================================================================
 * Copyright © 2013 the kamon project <http://kamon.io/>
 *
 * 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 kamon.newrelic

import akka.actor.{ Props, ActorRef, Actor }
import kamon.metrics.Subscriptions.TickMetricSnapshot
import kamon.newrelic.MetricTranslator.TimeSliceMetrics

class MetricTranslator(receiver: ActorRef) extends Actor with WebTransactionMetrics {

  def receive = {
    case TickMetricSnapshot(from, to, metrics) ⇒
      val scaledFrom = (from / 1E3).toInt
      val scaledTo = (to / 1E3).toInt
      val allMetrics = collectWebTransactionMetrics(metrics)

      receiver ! TimeSliceMetrics(scaledFrom, scaledTo, allMetrics)
  }

}

object MetricTranslator {
  case class TimeSliceMetrics(from: Long, to: Long, metrics: Seq[NewRelic.Metric])

  def props(receiver: ActorRef): Props = Props(new MetricTranslator(receiver))
}