package example

import com.typesafe.scalalogging._
import org.slf4j.MDC
import sourcecode._

object Main extends App with PosLogging {
  new Foo().doStuff()

  logger.info("Hello from main")
}

class Foo extends PosLogging {
  def doStuff(): Unit = {
    logger.info("Hi from Foo")
  }
}

trait PosLogging {
  protected val logger: LoggerTakingImplicit[PosLogging.Pos] = Logger.takingImplicit(getClass)(PosLogging.CanLogPos)
}

object PosLogging {
  /** Simple wrapper to get both Enclosing and Line */
  final case class Pos(enclosing: Enclosing, line: Line) {
    def value = s"${enclosing.value}:${line.value}"
  }
  object Pos {
    implicit def generate(implicit enclosing: Enclosing, line: Line): Pos = Pos(enclosing, line)
  }

  implicit case object CanLogPos extends CanLog[Pos] {
    override def logMessage(originalMsg: String, pos: Pos): String = {
      MDC.put("pos", pos.value)
      originalMsg
    }
  }
}