Implemented Funkwhale API listens export

backends/funkwhale.go

@@ -0,0 +1,117 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+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.
+*/
+package backends
+
+import (
+	"slices"
+	"time"
+
+	"github.com/spf13/viper"
+	"go.uploadedlobster.com/scotty/backends/funkwhale"
+	"go.uploadedlobster.com/scotty/models"
+)
+
+const FunkwhaleClientName = "Funkwhale"
+
+type FunkwhaleApiBackend struct {
+	client   funkwhale.Client
+	username string
+}
+
+func (b FunkwhaleApiBackend) FromConfig(config *viper.Viper) Backend {
+	b.client = funkwhale.New(
+		config.GetString("server-url"),
+		config.GetString("token"),
+	)
+	b.username = config.GetString("username")
+	return b
+}
+
+func (b FunkwhaleApiBackend) ExportListens(oldestTimestamp time.Time) ([]models.Listen, error) {
+	page := 1
+	perPage := funkwhale.MaxItemsPerGet
+
+	listens := make([]models.Listen, 0)
+
+out:
+	for {
+		result, err := b.client.GetHistoryListenings(b.username, page, perPage)
+		if err != nil {
+			return nil, err
+		}
+
+		count := len(result.Results)
+		if count == 0 {
+			break out
+		}
+
+		for _, fwListen := range result.Results {
+			listen := ListenFromFunkwhale(fwListen)
+			if listen.ListenedAt.Unix() > oldestTimestamp.Unix() {
+				listens = append(listens, listen)
+			} else {
+				break out
+			}
+		}
+
+		if result.Next == "" {
+			// No further results
+			break out
+		}
+
+		page += 1
+	}
+
+	slices.Reverse(listens)
+	return listens, nil
+}
+
+func ListenFromFunkwhale(fwListen funkwhale.Listening) models.Listen {
+	track := fwListen.Track
+	listen := models.Listen{
+		UserName: fwListen.User.UserName,
+		Track: models.Track{
+			TrackName:     track.Title,
+			ReleaseName:   track.Album.Title,
+			ArtistNames:   []string{track.Artist.Name},
+			TrackNumber:   track.Position,
+			RecordingMbid: models.MBID(track.RecordingMbid),
+			ReleaseMbid:   models.MBID(track.Album.ReleaseMbid),
+			ArtistMbids:   []models.MBID{models.MBID(track.Artist.ArtistMbid)},
+			Tags:          track.Tags,
+			AdditionalInfo: map[string]any{
+				"media_player": FunkwhaleClientName,
+			},
+		},
+	}
+
+	listenedAt, err := time.Parse(time.RFC3339, fwListen.CreationDate)
+	if err == nil {
+		listen.ListenedAt = listenedAt
+	}
+
+	if len(track.Uploads) > 0 {
+		listen.Track.Duration = time.Duration(track.Uploads[0].Duration * int(time.Second))
+	}
+
+	return listen
+}