package outwatchapp.util.reactive.store

import java.time.LocalDateTime

import io.circe.Encoder
import io.circe.Printer
import io.circe.generic.JsonCodec
import io.circe.syntax._
import io.odin.Logger
import io.odin.LoggerMessage
import io.odin.formatter.options.PositionFormat
import io.odin.formatter.options.ThrowableFormat
import io.odin.meta.Render
import monix.bio.Task
import monix.reactive.Observable

@JsonCodec
final case class StoreInfo[A](
    name: String,
    action: A,
    time: LocalDateTime
)

object StoreInfo {
  val printer = Printer.noSpaces
  implicit def render[T: Encoder]: Render[StoreInfo[T]] =
    new Render[StoreInfo[T]] {
      override def render(m: StoreInfo[T]): String = printer.print(m.asJson)
    }
}

object Middlewares {

  val format = create(ThrowableFormat.Default, PositionFormat.Full)

  def create(
      throwableFormat: ThrowableFormat,
      positionFormat: PositionFormat
  ): io.odin.formatter.Formatter = (msg: LoggerMessage) => msg.message.value

  def actionStateLoggerMiddleware[A, M](
      logger: Logger[Task]
  ): Task[Middleware[A, M]] =
    Task.deferAction(implicit s =>
      Task((obs: Observable[(A, M)]) =>
        obs.doOnNextF { case (a, m) =>
          logger.debug(s"Received action $a with state $m")
        }
      )
    )

  def actionLoggerMiddleware[A: Encoder, M](
      logger: Logger[Task],
      name: String
  ): Task[Middleware[A, M]] =
    Task.deferAction(implicit s =>
      Task((obs: Observable[(A, M)]) =>
        obs.doOnNextF { case (a, _) =>
          Task(LocalDateTime.now())
            .flatMap(curTime => logger.debug(StoreInfo(name, a, curTime)))
        }
      )
    )
}