Adding acousticbrainz support

api/funkwhale_api/radios/radios.py

+import logging
 import random
 
 from django.core.exceptions import ValidationError
@@ -11,9 +12,11 @@ from funkwhale_api.moderation import filters as moderation_filters
 from funkwhale_api.music.models import Artist, Library, Track, Upload
 from funkwhale_api.tags.models import Tag
 
-from . import filters, models
+from . import filters, models, utils
 from .registries import registry
 
+logger = logging.getLogger(__name__)
+
 
 class SimpleRadio(object):
     related_object_field = None
@@ -201,7 +204,7 @@ class NextNotFound(Exception):
     pass
 
 
-@registry.register(name="similar")
+@registry.register(name="similar_history")
 class SimilarRadio(RelatedObjectRadio):
     model = Track
 
@@ -254,6 +257,27 @@ class SimilarRadio(RelatedObjectRadio):
         return random.choice([c[0] for c in next_candidates])
 
 
+@registry.register(name="similar_mbid")
+class SimilarAcousticRadio(RelatedObjectRadio):
+    model = Track
+
+    def get_regex(self):
+        related_mbid = str(self.session.related_object.mbid)
+        if not related_mbid:
+            logger.info(f"No mbid found for the related object.")
+            pass
+        mbids_regex = str()
+        mbids = utils.get_similar_tracks_mbids_from_mbid(related_mbid, "rosamerica")
+        for mbid in mbids:
+            mbids_regex = str(mbids_regex) + str(mbid + "|")
+        return mbids_regex
+
+    def filter_queryset(self, queryset):
+        queryset = super().filter_queryset(queryset)
+        mbids_regex = self.get_regex()
+        return queryset.filter(mbid__regex=r'({mbids_regex})'.format(mbids_regex=mbids_regex))
+
+
 @registry.register(name="artist")
 class ArtistRadio(RelatedObjectRadio):
     model = Artist

api/funkwhale_api/radios/utils.py

+import json
+import logging
+
+import requests
+
+logger = logging.getLogger(__name__)
+
+VALID_METRICS = ['mfccs', 'mfccsw', 'gfccs', 'gfccsw', 'key', 'bpm', 'onsetrate', 'moods',
+                 'instruments', 'dortmund', 'rosamerica', 'tzanetakis']
+
+
+class EndpointError(Exception):
+    pass
+
+
+def get_similar_tracks_mbids_from_mbid(mbid, annoy_similarity):
+
+    if annoy_similarity not in VALID_METRICS:
+        raise AttributeError("Metric %s is not valid. Must be one of : " + print(VALID_METRICS))
+
+    headers = {'Content-Type': 'application/json'}
+    endpoint = "acousticbrainz.org/api/v1/similarity"
+    similar_tracks_mbids = []
+    similar_tracks = requests.get(
+        'https://{endpoint}/{annoy_similarity}/?recording_ids={mbid}&remove_dups&n_neighbours=1000'
+        .format(endpoint=endpoint, annoy_similarity=annoy_similarity, mbid=mbid), headers=headers
+    )
+    if similar_tracks.status_code != 200:
+        logger.warning("Error while querying {endpoint!r} : {similar_tracks.content!r}")
+        raise EndpointError
+
+    j = json.loads(similar_tracks.content)
+    for tracks in j['{mbid}'.format(mbid=mbid)]['0']:
+        similar_tracks_mbids.append(tracks['recording_mbid'])
+    return similar_tracks_mbids

front/src/components/audio/PlayButton.vue

@@ -25,7 +25,7 @@
         <button class="item basic" ref="playNow" data-ref="playNow" :disabled="!playable" @click.stop.prevent="addNext(true)" :title="labels.playNow">
           <i class="play icon"></i>{{ labels.playNow }}
         </button>
-        <button v-if="track" class="item basic" :disabled="!playable" @click.stop.prevent="$store.dispatch('radios/start', {type: 'similar', objectId: track.id})" :title="labels.startRadio">
+        <button v-if="track" class="item basic" :disabled="!playable" @click.stop.prevent="$store.dispatch('radios/start', {type: 'similar_history', objectId: track.id})" :title="labels.startRadio">
           <i class="feed icon"></i><translate translate-context="*/Queue/Button.Label/Short, Verb">Play radio</translate>
         </button>
         <button v-if="track" class="item basic" :disabled="!playable" @click.stop="$store.commit('playlists/chooseTrack', track)">