text: """MIT License
  
  Copyright (c) 2019-2021 PythonistaGuild
  Copyright (c) 2021-present Pycord Development
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
  """
  from __future__ import annotations
  
  import asyncio
  import logging
  from typing import Any, Dict, TYPE_CHECKING, Tuple, Optional
  
  import aiohttp
  
  import pycord.wavelink
  from .utils import MISSING
  
  if TYPE_CHECKING:
      from .pool import Node
  
  __all__ = ("Websocket",)
  
  logger: logging.Logger = logging.getLogger(__name__)
  
  
  class Websocket:
      def __init__(self, *, node: Node, session: aiohttp.ClientSession = MISSING):
          self.node: Node = node
  
          self.websocket: Optional[aiohttp.ClientWebSocketResponse] = None
          if session is MISSING:
              session = aiohttp.ClientSession()
          self.session: aiohttp.ClientSession = session
          self.listener: Optional[asyncio.Task] = None
  
          self.host: str = f'{"https://" if self.node._https else "http://"}{self.node.host}:{self.node.port}'
          self.ws_host: str = f"ws://{self.node.host}:{self.node.port}"
  
      @property
      def headers(self) -> Dict[str, Any]:
          return {
              "Authorization": self.node._password,
              "User-Id": str(self.node.bot.user.id),
              "Client-Name": "WaveLink",
          }
  
      def is_connected(self) -> bool:
          return self.websocket is not None and not self.websocket.closed
  
      async def connect(self) -> None:
          if self.is_connected():
              assert isinstance(self.websocket, aiohttp.ClientWebSocketResponse)
              await self.websocket.close(
                  code=1006, message=b"WaveLink: Attempting reconnection."
              )
  
          try:
              self.websocket = await self.session.ws_connect(
                  self.ws_host, headers=self.headers, heartbeat=self.node._heartbeat
              )
          except Exception as error:
              if (
                  isinstance(error, aiohttp.WSServerHandshakeError)
                  and error.status == 401
              ):
                  logger.error(f"\nAuthorization Failed for Node: {self.node}\n")
              else:
                  logger.error(f"Connection Failure: {error}")
  
              return
  
          if self.listener is None:
              self.listener = asyncio.create_task(self.listen())
  
          if self.is_connected():
              self.dispatch("node_ready", self.node)
              logger.debug(f"Connection established...{self.node.__repr__()}")
  
      async def listen(self) -> None:
          backoff = pycord.wavelink.Backoff(base=1, maximum_time=60, maximum_tries=None)
  
          while True:
              assert isinstance(self.websocket, aiohttp.ClientWebSocketResponse)
              msg = await self.websocket.receive()
  
              if msg.type is aiohttp.WSMsgType.CLOSED:
                  logger.debug(f"Websocket Closed: {msg.extra}")
  
                  retry = backoff.calculate()
  
                  logger.warning(f"\nRetrying connection in <{retry}> seconds...\n")
  
                  await asyncio.sleep(retry)
  
                  if not self.is_connected():
                      await self.connect()
              else:
                  logger.debug(f"Received Payload:: <{msg.data}>")
  
                  if msg.data == 1011:
                      # Lavalink encountered an internal error which can not be fixed...
                      # Consider updating Lavalink...
                      logger.error('Internal Lavalink Error encountered. Terminating WaveLink without retries.'
                                   'Consider updating your Lavalink Server.')
  
                      self.listener.cancel()
                      return
  
                  asyncio.create_task(self.process_data(msg.json()))
  
      async def process_data(self, data: Dict[str, Any]) -> None:
          op = data.get("op", None)
          if not op:
              return
  
          if op == "stats":
              self.node.stats = pycord.wavelink.Stats(self.node, data)
              return
  
          try:
              player = self.node.get_player(self.node.bot.get_guild(
                  int(data["guildId"])))  # type: ignore
          except KeyError:
              return
  
          if player is None:
              return
  
          if op == 'event':
              event, payload = await self._get_event_payload(data['type'], data)
              logger.debug(f'op: event:: {data}')
  
              self.dispatch(event, player, **payload)
  
          elif op == "playerUpdate":
              logger.debug(f"op: playerUpdate:: {data}")
              try:
                  await player.update_state(data)
              except KeyError:
                  pass
  
      async def _get_event_payload(
          self, name: str, data: Dict[str, Any]
      ) -> Tuple[str, Dict[str, Any]]:
          event = "event"
          payload = {}
  
          if name == "WebSocketClosedEvent":
              event = "websocket_closed"
              payload["reason"] = data.get("reason")
              payload["code"] = data.get("code")
  
          if name.startswith("Track"):
              base64_ = data.get('track')
              track = await self.node.build_track(cls=pycord.wavelink.Track, identifier=base64_)
  
              payload["track"] = track
  
              if name == "TrackEndEvent":
                  event = "track_end"
                  payload["reason"] = data.get("reason")
  
              elif name == "TrackStartEvent":
                  event = "track_start"
  
              elif name == "TrackExceptionEvent":
                  event = "track_exception"
                  payload["error"] = data.get("error")
  
              elif name == "TrackStuckEvent":
                  event = "track_stuck"
                  threshold = data.get("thresholdMs")
                  if isinstance(threshold, str):
                      payload["threshold"] = int(threshold)
  
          return event, payload
  
      def dispatch(self, event, *args: Any, **kwargs: Any) -> None:
          self.node.bot.dispatch(f"wavelink_{event}", *args, **kwargs)
  
      async def send(self, **data: Any) -> None:
          if self.is_connected():
              assert isinstance(self.websocket, aiohttp.ClientWebSocketResponse)
              logger.debug(f"Sending Payload:: {data}")
  
              data_str = self.node._dumps(data)
              if isinstance(data_str, bytes):
                  # Some JSON libraries serialize to bytes
                  # Yet Lavalink does not support binary websockets
                  # So we need to decode. In the future, maybe
                  # self._websocket.send_bytes could be used
                  # if Lavalink ever implements it
                  data_str = data_str.decode("utf-8")
  
              await self.websocket.send_str(data_str)
  