scotty/backends/jspf/jspf.go
Philipp Wolfer 117014a977
Change project license to GPLv3
Individual files, mainly the models and the HTTP clients stay under MIT
2023-11-22 08:05:23 +01:00

123 lines
3.2 KiB
Go

/*
Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
This file is part of Scotty.
Scotty is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later version.
Scotty is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
Scotty. If not, see <https://www.gnu.org/licenses/>.
*/
package jspf
import (
"encoding/json"
"os"
"time"
"github.com/spf13/viper"
"go.uploadedlobster.com/scotty/models"
)
type JspfBackend struct {
filePath string
title string
creator string
identifier string
tracks []Track
}
func (b *JspfBackend) Name() string { return "jspf" }
func (b *JspfBackend) FromConfig(config *viper.Viper) models.Backend {
b.filePath = config.GetString("file-path")
b.title = config.GetString("title")
b.creator = config.GetString("username")
b.identifier = config.GetString("identifier")
b.tracks = make([]Track, 0)
return b
}
func (b *JspfBackend) StartImport() error { return nil }
func (b *JspfBackend) FinishImport() error {
err := b.writeJspf(b.tracks)
return err
}
func (b *JspfBackend) ImportLoves(export models.LovesResult, importResult models.ImportResult, progress chan models.Progress) (models.ImportResult, error) {
for _, love := range export.Loves {
track := loveToTrack(love)
b.tracks = append(b.tracks, track)
importResult.ImportCount += 1
importResult.UpdateTimestamp(love.Created)
}
progress <- models.Progress{}.FromImportResult(importResult)
return importResult, nil
}
func loveToTrack(love models.Love) Track {
extension := MusicBrainzTrackExtension{
AddedAt: love.Created,
AddedBy: love.UserName,
AdditionalMetadata: love.AdditionalInfo,
ArtistIdentifiers: make([]string, len(love.ArtistMbids)),
}
for i, mbid := range love.ArtistMbids {
extension.ArtistIdentifiers[i] = "https://musicbrainz.org/artist/" + string(mbid)
}
if love.ReleaseMbid != "" {
extension.ReleaseIdentifier = "https://musicbrainz.org/release/" + string(love.ReleaseMbid)
}
track := Track{
Title: love.TrackName,
Album: love.ReleaseName,
Creator: love.ArtistName(),
TrackNum: love.TrackNumber,
Extension: map[string]any{
"https://musicbrainz.org/doc/jspf#track": extension,
},
}
if love.RecordingMbid != "" {
track.Identifier = append(track.Identifier, "https://musicbrainz.org/recording/"+string(love.RecordingMbid))
}
return track
}
func (b JspfBackend) writeJspf(tracks []Track) error {
playlist := Jspf{
Playlist: Playlist{
Title: b.title,
Creator: b.creator,
Identifier: b.identifier,
Date: time.Now(),
Tracks: tracks,
},
}
file, err := os.Create(b.filePath)
if err != nil {
return err
}
defer file.Close()
jspfJson, err := json.MarshalIndent(playlist, "", "\t")
if err != nil {
return err
}
_, err = file.Write(jspfJson)
return err
}