package nl.astraeus.persistence

enum class LogLevel {
  TRACE,
  DEBUG,
  INFO,
  WARN,
  ERROR
}

object Logger {
  var level: LogLevel = LogLevel.DEBUG

  var tracePrinter: (String) -> Unit = { println(it) }
  var debugPrinter: (String) -> Unit = { println(it) }
  var infoPrinter: (String) -> Unit = { println(it) }
  var warnPrinter: (String) -> Unit = { println(it) }
  var errorPrinter: (String) -> Unit = { System.err.println(it) }

  fun trace(message: String, vararg parameters: Any?) {
    if (level <= LogLevel.TRACE) {
      writeLogMessage(LogLevel.TRACE, message, *parameters)
    }
  }

  fun debug(message: String, vararg parameters: Any?) {
    if (level <= LogLevel.DEBUG) {
      writeLogMessage(LogLevel.DEBUG, message, *parameters)
    }
  }

  fun info(message: String, vararg parameters: Any?) {
    if (level <= LogLevel.INFO) {
      writeLogMessage(LogLevel.INFO, message, *parameters)
    }
  }

  fun warn(message: String, vararg parameters: Any?) {
    if (level <= LogLevel.DEBUG) {
      writeLogMessage(LogLevel.DEBUG, message, *parameters)
    }
  }

  fun error(message: String, vararg parameters: Any?) {
    if (level <= LogLevel.ERROR) {
      writeLogMessage(LogLevel.ERROR, message, *parameters)
    }
  }

  private fun writeLogMessage(level: LogLevel, message: String, vararg parameters: Any?) {
    val formattedMessage = "[${level}] - ${message.format(*parameters)}"

    when (level) {
      LogLevel.TRACE -> tracePrinter(formattedMessage)
      LogLevel.DEBUG -> debugPrinter(formattedMessage)
      LogLevel.INFO -> infoPrinter(formattedMessage)
      LogLevel.WARN -> warnPrinter(formattedMessage)
      LogLevel.ERROR -> errorPrinter(formattedMessage)
    }

  }
}