beets/beetsplug/acousticbrainz.py
2015-12-31 11:38:05 -08:00

106 lines
3.3 KiB
Python

# -*- coding: utf-8 -*-
# This file is part of beets.
# Copyright 2015-2016, Ohm Patel.
#
# 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.
""" Fetch various AcousticBrainz metadata using MBID
"""
from __future__ import (division, absolute_import, print_function,
unicode_literals)
import requests
from beets import plugins, ui
ACOUSTIC_URL = "http://acousticbrainz.org/"
LEVEL = "/high-level"
class AcousticPlugin(plugins.BeetsPlugin):
def __init__(self):
super(AcousticPlugin, self).__init__()
def commands(self):
cmd = ui.Subcommand('acousticbrainz',
help="fetch metadata from AcousticBrainz")
def func(lib, opts, args):
items = lib.items(ui.decargs(args))
fetch_info(self._log, items)
cmd.func = func
return [cmd]
def fetch_info(log, items):
"""Currently outputs MBID and corresponding request status code
"""
for item in items:
if item.mb_trackid:
log.info('getting data for: {}', item)
# Fetch the data from the AB API.
url = generate_url(item.mb_trackid)
log.debug('fetching URL: {}', url)
try:
rs = requests.get(url)
except requests.RequestException as exc:
log.info('request error: {}', exc)
continue
# Check for missing tracks.
if rs.status_code == 404:
log.info('recording ID {} not found', item.mb_trackid)
continue
# Parse the JSON response.
try:
data = rs.json()
except ValueError:
log.debug('Invalid Response: {}', rs.text)
# Get each field and assign it on the item.
item.danceable = get_value(
log,
data,
["highlevel", "danceability", "all", "danceable"],
)
item.mood_happy = get_value(
log,
data,
["highlevel", "mood_happy", "all", "happy"],
)
item.mood_party = get_value(
log,
data,
["highlevel", "mood_party", "all", "party"],
)
# Store the data. We only update flexible attributes, so we
# don't call `item.try_write()` here.
item.store()
def generate_url(mbid):
"""Generates url of AcousticBrainz end point for given MBID
"""
return ACOUSTIC_URL + mbid + LEVEL
def get_value(log, data, map_path):
"""Allows traversal of dictionary with cleaner formatting
"""
try:
return reduce(lambda d, k: d[k], map_path, data)
except KeyError:
log.debug('Invalid Path: {}', map_path)