import java.io.IOException
import okhttp3.internal.toLongOrDefault
import okio.Buffer
import okio.BufferedSource
import okio.ByteString.Companion.encodeUtf8
import okio.Options

class ServerSentEventReader(
  private val source: BufferedSource,
  private val callback: Callback,
) {
  private var lastId: String? = null

  interface Callback {
    fun onEvent(
      id: String?,
      type: String?,

      """
      |retry
      |
      """.trimMargin(),
    )
    assertThat(callbacks).isEmpty()
  }

  private fun consumeEvents(source: String) {
    val callback: ServerSentEventReader.Callback =
      object : ServerSentEventReader.Callback {
        override fun onEvent(
          id: String?,
          type: String?,
          data: String,
        ) {
          callbacks.add(Event(id, type, data))

import okhttp3.sse.EventSource
import okhttp3.sse.EventSourceListener

internal class RealEventSource(
  private val request: Request,
  private val listener: EventSourceListener,
) : EventSource, ServerSentEventReader.Callback, Callback {
  private var call: Call? = null

  @Volatile private var canceled = false

  fun connect(callFactory: Call.Factory) {
    call =
      callFactory.newCall(request).apply {