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/*
 * Copyright 2019-2024 John A. De Goes and the ZIO Contributors
 *
 * 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 zio.logging

import zio.metrics.{ Metric, MetricLabel }
import zio.{ Cause, FiberId, FiberRef, FiberRefs, LogLevel, LogSpan, Trace, Unsafe, ZLogger }

final case class MetricLogger(counter: Metric.Counter[Long], logLevelLabel: String) extends ZLogger[String, Unit] {

  override def apply(
    trace: Trace,
    fiberId: FiberId,
    logLevel: LogLevel,
    message: () => String,
    cause: Cause[Any],
    context: FiberRefs,
    spans: List[LogSpan],
    annotations: Map[String, String]
  ): Unit = {
    val tags = context.get(FiberRef.currentTags).getOrElse(Set.empty)
    counter.unsafe.update(1, tags + MetricLabel(logLevelLabel, logLevel.label.toLowerCase))(Unsafe.unsafe)
    ()
  }

}