#!/usr/bin/env python3
"""
WebSocket events.
"""
import types

async def select(request, ws, data):
	"""Retrieve information about an artist, album or track."""
	if data.get('type') == 'artist':
		async with request.app['pool'].acquire() as conn:
			albums = await conn.fetch(
				"SELECT DISTINCT album, date FROM track "
				"WHERE albumartist = $1 ORDER BY date ASC",
				data.get('artist', ''))
		albums = [record['album'] for record in albums]
		ret = {'event': 'albums', 'ok': True, 'data': albums}
		await ws.send_json(ret)

events = {}
for obj in dir():
	if type(locals()[obj]) == types.FunctionType:
		events[locals()[obj].__name__] = locals()[obj]