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"""This library wraps the librespot-java API for use with Home Assistant."""
from __future__ import annotations
__version__ = "0.1.1"
import asyncio
import logging
from typing import Any, Callable, Coroutine, Mapping
import aiohttp
_LOGGER = logging.getLogger(__name__)
def _debug_string(string_base: str, status: int) -> str:
"""Helper for logger debug strings."""
if status == 204:
return string_base + " No active session"
if status == 500:
return string_base + " Invalid session"
if status == 503:
return string_base + " Session is reconnecting"
return ""
class LibrespotJavaAPI:
"""Class for interfacing with librespot-java API."""
def __init__(
self, websession: aiohttp.ClientSession, ip_address: str, api_port: int
):
self._ip_address = ip_address
self._api_port = api_port
self._websession = websession
async def post_request(
self, endpoint: str, data: Mapping[str, Any] | None = None
) -> aiohttp.ClientResponse:
"""Helper function to put to endpoint."""
url = f"http://{self._ip_address}:{self._api_port}/{endpoint}"
_LOGGER.debug("POST request to %s with payload %s.", url, data)
response = await self._websession.post(url=url, data=data)
return response
async def start_websocket_handler(
self,
update_callback: Callable[[Mapping[str, Any]], Coroutine[Any, Any, None]],
websocket_reconnect_time: float,
) -> None:
"""Websocket handler daemon."""
_LOGGER.debug("Starting websocket handler")
url = f"http://{self._ip_address}:{self._api_port}/events"
while True:
try:
async with self._websession.ws_connect(url) as ws:
async for msg in ws:
json = msg.json()
_LOGGER.debug("Message received: %s", json)
await update_callback(json)
_LOGGER.debug(
"WebSocket disconnected, will retry in %s seconds.",
websocket_reconnect_time,
)
await asyncio.sleep(websocket_reconnect_time)
except (asyncio.TimeoutError, aiohttp.ClientError):
_LOGGER.error(
"Can not connect to WebSocket at %s, will retry in %s seconds.",
url,
websocket_reconnect_time,
)
await asyncio.sleep(websocket_reconnect_time)
continue
async def player_load(self, uri: str, play: bool) -> int:
"""Load track from URI."""
resp = await self.post_request(
endpoint="player/load", data={"uri": uri, "play": play}
)
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to load track.", resp.status))
return resp.status
async def player_pause(self) -> int:
"""Pause playback."""
resp = await self.post_request(endpoint="player/pause")
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to pause player.", resp.status))
return resp.status
async def player_resume(self) -> int:
"""Resume playback."""
resp = await self.post_request(endpoint="player/resume")
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to resume player.", resp.status))
return resp.status
async def player_next(self) -> int:
"""Skip to next track."""
resp = await self.post_request(endpoint="player/next")
if resp.status in [204, 500, 503]:
_LOGGER.debug(
_debug_string("Unable to skip to the next track.", resp.status)
)
return resp.status
async def player_prev(self) -> int:
"""Skip to previous track."""
resp = await self.post_request(endpoint="player/prev")
if resp.status in [204, 500, 503]:
_LOGGER.debug(
_debug_string("Unable to skip to the previous track.", resp.status)
)
return resp.status
async def player_set_volume(self, volume: int) -> int:
"""Set volume to a given volume between 0 and 65536."""
resp = await self.post_request(
endpoint="player/set-volume", data={"volume": volume}
)
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to set the volume.", resp.status))
return resp.status
async def player_volume_up(self) -> int:
"""Turn up the volume a little bit."""
resp = await self.post_request(endpoint="player/volume-up")
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to turn the volume up.", resp.status))
return resp.status
async def player_volume_down(self) -> int:
"""Turn down the volume a little bit."""
resp = await self.post_request(endpoint="player/volume-down")
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string("Unable to turn the volume down.", resp.status))
return resp.status
async def player_current(self) -> dict:
"""Retrieve information about the current track."""
resp = await self.post_request(endpoint="player/current")
if resp.status in [204, 500, 503]:
_LOGGER.debug(
_debug_string(
"Unable to retrieve information about the current track.",
resp.status,
)
)
json = await resp.json(content_type=None)
return json
async def metadata(self, uri: str) -> dict:
"""Retrieve metadata."""
resp = await self.post_request(endpoint=f"metadata/{uri}")
if resp.status in [204, 500, 503]:
_LOGGER.debug(
_debug_string(f"Unable to get metadata for {uri}.", resp.status)
)
json = await resp.json(content_type=None)
return json
async def search(self, query: str) -> dict:
"""Make a search."""
resp = await self.post_request(endpoint=f"search/{query}")
if resp.status in [204, 500, 503]:
_LOGGER.debug(_debug_string(f"Unable to search for {query}.", resp.status))
json = await resp.json(content_type=None)
return json
async def token(self, scope: str) -> dict:
"""Request an access token for a specific scope."""
resp = await self.post_request(endpoint=f"token/{scope}")
if resp.status in [204, 500, 503]:
_LOGGER.debug(
_debug_string(f"Unable to get token for {scope}.", resp.status)
)
json = await resp.json(content_type=None)
return json
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