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Add dedicated SimilarArtists call

This commit is contained in:
Deluan 2020-10-20 13:38:44 -04:00 committed by Deluan Quintão
parent 29d8950e5b
commit e9e09a7480
22 changed files with 317 additions and 91 deletions
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112
core/external_info.go
View File

@ -19,11 +19,14 @@ const placeholderArtistImageMediumUrl = "https://lastfm.freetls.fastly.net/i/u/1
const placeholderArtistImageLargeUrl = "https://lastfm.freetls.fastly.net/i/u/300x300/2a96cbd8b46e442fc41c2b86b821562f.png"
type ExternalInfo interface {
ArtistInfo(ctx context.Context, artistId string, includeNotPresent bool, count int) (*model.ArtistInfo, error)
ArtistInfo(ctx context.Context, id string) (*model.ArtistInfo, error)
SimilarArtists(ctx context.Context, id string, includeNotPresent bool, count int) (model.Artists, error)
SimilarSongs(ctx context.Context, id string, count int) (model.MediaFiles, error)
}
type LastFMClient interface {
ArtistGetInfo(ctx context.Context, name string) (*lastfm.Artist, error)
ArtistGetSimilar(ctx context.Context, name string, limit int) ([]lastfm.Artist, error)
}
type SpotifyClient interface {
@ -40,20 +43,86 @@ type externalInfo struct {
spf SpotifyClient
}
func (e *externalInfo) ArtistInfo(ctx context.Context, artistId string,
includeNotPresent bool, count int) (*model.ArtistInfo, error) {
info := model.ArtistInfo{ID: artistId}
artist, err := e.ds.Artist(ctx).Get(artistId)
func (e *externalInfo) getArtist(ctx context.Context, id string) (artist *model.Artist, err error) {
var entity interface{}
entity, err = GetEntityByID(ctx, e.ds, id)
if err != nil {
return nil, err
}
info.Name = artist.Name
switch v := entity.(type) {
case *model.Artist:
artist = v
case *model.MediaFile:
artist = &model.Artist{
ID: v.ArtistID,
Name: v.Artist,
}
case *model.Album:
artist = &model.Artist{
ID: v.AlbumArtistID,
Name: v.Artist,
}
default:
err = model.ErrNotFound
}
return
}
func (e *externalInfo) SimilarSongs(ctx context.Context, id string, count int) (model.MediaFiles, error) {
// TODO
// Get Similar Artists
// Get `count` songs from all similar artists, sorted randomly
return nil, nil
}
func (e *externalInfo) SimilarArtists(ctx context.Context, id string, includeNotPresent bool, count int) (model.Artists, error) {
artist, err := e.getArtist(ctx, id)
if err != nil {
return nil, err
}
var result model.Artists
var notPresent []string
similar, err := e.lfm.ArtistGetSimilar(ctx, artist.Name, count)
if err != nil {
return nil, err
}
// First select artists that are present.
for _, s := range similar {
sa, err := e.ds.Artist(ctx).FindByName(s.Name)
if err != nil {
notPresent = append(notPresent, s.Name)
continue
}
result = append(result, *sa)
}
// Then fill up with non-present artists
if includeNotPresent {
for _, s := range notPresent {
sa := model.Artist{ID: "-1", Name: s}
result = append(result, sa)
}
}
return result, nil
}
func (e *externalInfo) ArtistInfo(ctx context.Context, id string) (*model.ArtistInfo, error) {
artist, err := e.getArtist(ctx, id)
if err != nil {
return nil, err
}
info := model.ArtistInfo{ID: artist.ID, Name: artist.Name}
// TODO Load from local: artist.jpg/png/webp, artist.json (with the remaining info)
var wg sync.WaitGroup
e.callArtistInfo(ctx, artist, includeNotPresent, &wg, &info)
e.callArtistInfo(ctx, artist, &wg, &info)
e.callArtistImages(ctx, artist, &wg, &info)
wg.Wait()
@ -68,7 +137,7 @@ func (e *externalInfo) ArtistInfo(ctx context.Context, artistId string,
return &info, nil
}
func (e *externalInfo) callArtistInfo(ctx context.Context, artist *model.Artist, includeNotPresent bool,
func (e *externalInfo) callArtistInfo(ctx context.Context, artist *model.Artist,
wg *sync.WaitGroup, info *model.ArtistInfo) {
if e.lfm != nil {
log.Debug(ctx, "Calling Last.FM ArtistGetInfo", "artist", artist.Name)
@ -85,7 +154,6 @@ func (e *externalInfo) callArtistInfo(ctx context.Context, artist *model.Artist,
e.setBio(info, lfmArtist.Bio.Summary)
e.setLastFMUrl(info, lfmArtist.URL)
e.setMbzID(info, lfmArtist.MBID)
e.setSimilar(ctx, info, lfmArtist.Similar.Artists, includeNotPresent)
}()
}
}
@ -157,27 +225,3 @@ func (e *externalInfo) setLargeImageUrl(info *model.ArtistInfo, url string) {
info.LargeImageUrl = url
}
}
func (e *externalInfo) setSimilar(ctx context.Context, info *model.ArtistInfo, artists []lastfm.Artist, includeNotPresent bool) {
if len(info.Similar) == 0 {
var notPresent []string
// First select artists that are present.
for _, s := range artists {
sa, err := e.ds.Artist(ctx).FindByName(s.Name)
if err != nil {
notPresent = append(notPresent, s.Name)
continue
}
info.Similar = append(info.Similar, *sa)
}
// Then fill up with non-present artists
if includeNotPresent {
for _, s := range notPresent {
sa := model.Artist{ID: "-1", Name: s}
info.Similar = append(info.Similar, sa)
}
}
}
}

28
core/get_entity.go Normal file
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@ -0,0 +1,28 @@
package core
import (
"context"
"github.com/deluan/navidrome/model"
)
// TODO: Should the type be encoded in the ID?
func GetEntityByID(ctx context.Context, ds model.DataStore, id string) (interface{}, error) {
ar, err := ds.Artist(ctx).Get(id)
if err == nil {
return ar, nil
}
al, err := ds.Album(ctx).Get(id)
if err == nil {
return al, nil
}
pls, err := ds.Playlist(ctx).Get(id)
if err == nil {
return pls, nil
}
mf, err := ds.MediaFile(ctx).Get(id)
if err == nil {
return mf, nil
}
return nil, err
}

36
core/lastfm/client.go
View File

@ -7,6 +7,7 @@ import (
"io/ioutil"
"net/http"
"net/url"
"strconv"
)
const (
@ -27,14 +28,10 @@ type Client struct {
hc HttpClient
}
// TODO SimilarArtists()
func (c *Client) ArtistGetInfo(ctx context.Context, name string) (*Artist, error) {
params := url.Values{}
params.Add("method", "artist.getInfo")
func (c *Client) makeRequest(params url.Values) (*Response, error) {
params.Add("format", "json")
params.Add("api_key", c.apiKey)
params.Add("artist", name)
params.Add("lang", c.lang)
req, _ := http.NewRequest("GET", apiBaseUrl, nil)
req.URL.RawQuery = params.Encode()
@ -55,7 +52,32 @@ func (c *Client) ArtistGetInfo(ctx context.Context, name string) (*Artist, error
var response Response
err = json.Unmarshal(data, &response)
return &response.Artist, err
return &response, err
}
func (c *Client) ArtistGetInfo(ctx context.Context, name string) (*Artist, error) {
params := url.Values{}
params.Add("method", "artist.getInfo")
params.Add("artist", name)
params.Add("lang", c.lang)
response, err := c.makeRequest(params)
if err != nil {
return nil, err
}
return &response.Artist, nil
}
func (c *Client) ArtistGetSimilar(ctx context.Context, name string, limit int) ([]Artist, error) {
params := url.Values{}
params.Add("method", "artist.getSimilar")
params.Add("artist", name)
params.Add("limit", strconv.Itoa(limit))
response, err := c.makeRequest(params)
if err != nil {
return nil, err
}
return response.SimilarArtists.Artists, nil
}
func (c *Client) parseError(data []byte) error {

42
core/lastfm/client_test.go
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@ -21,7 +21,7 @@ var _ = Describe("Client", func() {
client = NewClient("API_KEY", "pt", httpClient)
})
Describe("ArtistInfo", func() {
Describe("ArtistGetInfo", func() {
It("returns an artist for a successful response", func() {
f, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
httpClient.res = http.Response{Body: f, StatusCode: 200}
@ -60,6 +60,46 @@ var _ = Describe("Client", func() {
})
})
Describe("ArtistGetSimilar", func() {
It("returns an artist for a successful response", func() {
f, _ := os.Open("tests/fixtures/lastfm.artist.getsimilar.json")
httpClient.res = http.Response{Body: f, StatusCode: 200}
artists, err := client.ArtistGetSimilar(context.TODO(), "U2", 2)
Expect(err).To(BeNil())
Expect(len(artists)).To(Equal(2))
Expect(httpClient.savedRequest.URL.String()).To(Equal(apiBaseUrl + "?api_key=API_KEY&artist=U2&format=json&limit=2&method=artist.getSimilar"))
})
It("fails if Last.FM returns an error", func() {
httpClient.res = http.Response{
Body: ioutil.NopCloser(bytes.NewBufferString(`{"error":3,"message":"Invalid Method - No method with that name in this package"}`)),
StatusCode: 400,
}
_, err := client.ArtistGetSimilar(context.TODO(), "U2", 2)
Expect(err).To(MatchError("last.fm error(3): Invalid Method - No method with that name in this package"))
})
It("fails if HttpClient.Do() returns error", func() {
httpClient.err = errors.New("generic error")
_, err := client.ArtistGetSimilar(context.TODO(), "U2", 2)
Expect(err).To(MatchError("generic error"))
})
It("fails if returned body is not a valid JSON", func() {
httpClient.res = http.Response{
Body: ioutil.NopCloser(bytes.NewBufferString(`<xml>NOT_VALID_JSON</xml>`)),
StatusCode: 200,
}
_, err := client.ArtistGetSimilar(context.TODO(), "U2", 2)
Expect(err).To(MatchError("invalid character '<' looking for beginning of value"))
})
})
})
type fakeHttpClient struct {

13
core/lastfm/responses.go
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@ -1,7 +1,8 @@
package lastfm
type Response struct {
Artist Artist `json:"artist"`
Artist Artist `json:"artist"`
SimilarArtists SimilarArtists `json:"similarartists"`
}
type Artist struct {
@ -14,15 +15,17 @@ type Artist struct {
Listeners string `json:"listeners"`
Plays string `json:"plays"`
} `json:"stats"`
Similar struct {
Artists []Artist `json:"artist"`
} `json:"similar"`
Tags struct {
Similar SimilarArtists `json:"similar"`
Tags struct {
Tag []ArtistTag `json:"tag"`
} `json:"tags"`
Bio ArtistBio `json:"bio"`
}
type SimilarArtists struct {
Artists []Artist `json:"artist"`
}
type ArtistImage struct {
URL string `json:"#text"`
Size string `json:"size"`

13
core/lastfm/responses_test.go
View File

@ -28,6 +28,19 @@ var _ = Describe("LastFM responses", func() {
})
})
Describe("SimilarArtists", func() {
It("parses the response correctly", func() {
var resp Response
body, _ := ioutil.ReadFile("tests/fixtures/lastfm.artist.getsimilar.json")
err := json.Unmarshal(body, &resp)
Expect(err).To(BeNil())
Expect(resp.SimilarArtists.Artists).To(HaveLen(2))
Expect(resp.SimilarArtists.Artists[0].Name).To(Equal("Passengers"))
Expect(resp.SimilarArtists.Artists[1].Name).To(Equal("INXS"))
})
})
Describe("Error", func() {
It("parses the error response correctly", func() {
var error Error

1
model/artist_info.go
View File

@ -5,7 +5,6 @@ type ArtistInfo struct {
Name string
MBID string
Biography string
Similar []Artist
SmallImageUrl string
MediumImageUrl string
LargeImageUrl string

2
server/subsonic/api.go
View File

@ -79,6 +79,8 @@ func (api *Router) routes() http.Handler {
H(withPlayer, "getArtistInfo", c.GetArtistInfo)
H(withPlayer, "getArtistInfo2", c.GetArtistInfo2)
H(withPlayer, "getTopSongs", c.GetTopSongs)
H(withPlayer, "getSimilarSongs", c.GetSimilarSongs)
H(withPlayer, "getSimilarSongs2", c.GetSimilarSongs2)
})
r.Group(func(r chi.Router) {
c := initAlbumListController(api)

55
server/subsonic/browsing.go
View File

@ -109,7 +109,7 @@ func (c *BrowsingController) GetMusicDirectory(w http.ResponseWriter, r *http.Re
id := utils.ParamString(r, "id")
ctx := r.Context()
entity, err := getEntityByID(ctx, c.ds, id)
entity, err := core.GetEntityByID(ctx, c.ds, id)
switch {
case err == model.ErrNotFound:
log.Error(r, "Requested ID not found ", "id", id)
@ -241,26 +241,12 @@ func (c *BrowsingController) GetArtistInfo(w http.ResponseWriter, r *http.Reques
count := utils.ParamInt(r, "count", 20)
includeNotPresent := utils.ParamBool(r, "includeNotPresent", false)
entity, err := getEntityByID(ctx, c.ds, id)
info, err := c.ei.ArtistInfo(ctx, id)
if err != nil {
return nil, err
}
switch v := entity.(type) {
case *model.MediaFile:
id = v.ArtistID
case *model.Album:
id = v.AlbumArtistID
case *model.Artist:
id = v.ID
default:
err = model.ErrNotFound
}
if err != nil {
return nil, err
}
info, err := c.ei.ArtistInfo(ctx, id, includeNotPresent, count)
similar, err := c.ei.SimilarArtists(ctx, id, includeNotPresent, count)
if err != nil {
return nil, err
}
@ -273,7 +259,7 @@ func (c *BrowsingController) GetArtistInfo(w http.ResponseWriter, r *http.Reques
response.ArtistInfo.LargeImageUrl = info.LargeImageUrl
response.ArtistInfo.LastFmUrl = info.LastFMUrl
response.ArtistInfo.MusicBrainzID = info.MBID
for _, s := range info.Similar {
for _, s := range similar {
similar := responses.Artist{}
similar.Id = s.ID
similar.Name = s.Name
@ -306,6 +292,39 @@ func (c *BrowsingController) GetArtistInfo2(w http.ResponseWriter, r *http.Reque
return response, nil
}
func (c *BrowsingController) GetSimilarSongs(w http.ResponseWriter, r *http.Request) (*responses.Subsonic, error) {
ctx := r.Context()
id, err := requiredParamString(r, "id", "id parameter required")
if err != nil {
return nil, err
}
count := utils.ParamInt(r, "count", 20)
songs, err := c.ei.SimilarSongs(ctx, id, count)
if err != nil {
return nil, err
}
response := newResponse()
response.SimilarSongs = &responses.SimilarSongs{
Song: childrenFromMediaFiles(ctx, songs),
}
return response, nil
}
func (c *BrowsingController) GetSimilarSongs2(w http.ResponseWriter, r *http.Request) (*responses.Subsonic, error) {
res, err := c.GetSimilarSongs(w, r)
if err != nil {
return nil, err
}
response := newResponse()
response.SimilarSongs2 = &responses.SimilarSongs2{
Song: res.SimilarSongs2.Song,
}
return response, nil
}
// TODO Integrate with Last.FM
func (c *BrowsingController) GetTopSongs(w http.ResponseWriter, r *http.Request) (*responses.Subsonic, error) {
response := newResponse()

21
server/subsonic/helpers.go
View File

@ -258,24 +258,3 @@ func childrenFromAlbums(ctx context.Context, als model.Albums) []responses.Child
}
return children
}
// TODO: Should the type be encoded in the ID?
func getEntityByID(ctx context.Context, ds model.DataStore, id string) (interface{}, error) {
ar, err := ds.Artist(ctx).Get(id)
if err == nil {
return ar, nil
}
al, err := ds.Album(ctx).Get(id)
if err == nil {
return al, nil
}
pls, err := ds.Playlist(ctx).Get(id)
if err == nil {
return pls, nil
}
mf, err := ds.MediaFile(ctx).Get(id)
if err == nil {
return mf, nil
}
return nil, err
}

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs with data should match .JSON Normal file
View File

@ -0,0 +1 @@
{"status":"ok","version":"1.8.0","type":"navidrome","serverVersion":"v0.0.0","similarSongs":{"song":[{"id":"1","isDir":false,"title":"title","isVideo":false}]}}

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs with data should match .XML Normal file
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@ -0,0 +1 @@
<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.8.0" type="navidrome" serverVersion="v0.0.0"><similarSongs><song id="1" isDir="false" title="title" isVideo="false"></song></similarSongs></subsonic-response>

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs without data should match .JSON Normal file
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@ -0,0 +1 @@
{"status":"ok","version":"1.8.0","type":"navidrome","serverVersion":"v0.0.0","similarSongs":{}}

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs without data should match .XML Normal file
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@ -0,0 +1 @@
<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.8.0" type="navidrome" serverVersion="v0.0.0"><similarSongs></similarSongs></subsonic-response>

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs2 with data should match .JSON Normal file
View File

@ -0,0 +1 @@
{"status":"ok","version":"1.8.0","type":"navidrome","serverVersion":"v0.0.0","similarSongs2":{"song":[{"id":"1","isDir":false,"title":"title","isVideo":false}]}}

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs2 with data should match .XML Normal file
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@ -0,0 +1 @@
<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.8.0" type="navidrome" serverVersion="v0.0.0"><similarSongs2><song id="1" isDir="false" title="title" isVideo="false"></song></similarSongs2></subsonic-response>

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs2 without data should match .JSON Normal file
View File

@ -0,0 +1 @@
{"status":"ok","version":"1.8.0","type":"navidrome","serverVersion":"v0.0.0","similarSongs2":{}}

1
server/subsonic/responses/.snapshots/responses-snapshotMatcher-Match-Responses SimilarSongs2 without data should match .XML Normal file
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@ -0,0 +1 @@
<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.8.0" type="navidrome" serverVersion="v0.0.0"><similarSongs2></similarSongs2></subsonic-response>

16
server/subsonic/responses/responses.go
View File

@ -36,9 +36,11 @@ type Subsonic struct {
ArtistWithAlbumsID3 *ArtistWithAlbumsID3 `xml:"artist,omitempty" json:"artist,omitempty"`
AlbumWithSongsID3 *AlbumWithSongsID3 `xml:"album,omitempty" json:"album,omitempty"`
ArtistInfo *ArtistInfo `xml:"artistInfo,omitempty" json:"artistInfo,omitempty"`
ArtistInfo2 *ArtistInfo2 `xml:"artistInfo2,omitempty" json:"artistInfo2,omitempty"`
TopSongs *TopSongs `xml:"topSongs,omitempty" json:"topSongs,omitempty"`
ArtistInfo *ArtistInfo `xml:"artistInfo,omitempty" json:"artistInfo,omitempty"`
ArtistInfo2 *ArtistInfo2 `xml:"artistInfo2,omitempty" json:"artistInfo2,omitempty"`
SimilarSongs *SimilarSongs `xml:"similarSongs,omitempty" json:"similarSongs,omitempty"`
SimilarSongs2 *SimilarSongs2 `xml:"similarSongs2,omitempty" json:"similarSongs2,omitempty"`
TopSongs *TopSongs `xml:"topSongs,omitempty" json:"topSongs,omitempty"`
PlayQueue *PlayQueue `xml:"playQueue,omitempty" json:"playQueue,omitempty"`
Bookmarks *Bookmarks `xml:"bookmarks,omitempty" json:"bookmarks,omitempty"`
@ -298,6 +300,14 @@ type ArtistInfo2 struct {
SimilarArtist []ArtistID3 `xml:"similarArtist,omitempty" json:"similarArtist,omitempty"`
}
type SimilarSongs struct {
Song []Child `xml:"song,omitempty" json:"song,omitempty"`
}
type SimilarSongs2 struct {
Song []Child `xml:"song,omitempty" json:"song,omitempty"`
}
type TopSongs struct {
Song []Child `xml:"song,omitempty" json:"song,omitempty"`
}

58
server/subsonic/responses/responses_test.go
View File

@ -361,6 +361,64 @@ var _ = Describe("Responses", func() {
})
})
Describe("SimilarSongs", func() {
BeforeEach(func() {
response.SimilarSongs = &SimilarSongs{}
})
Context("without data", func() {
It("should match .XML", func() {
Expect(xml.Marshal(response)).To(MatchSnapshot())
})
It("should match .JSON", func() {
Expect(json.Marshal(response)).To(MatchSnapshot())
})
})
Context("with data", func() {
BeforeEach(func() {
child := make([]Child, 1)
child[0] = Child{Id: "1", Title: "title", IsDir: false}
response.SimilarSongs.Song = child
})
It("should match .XML", func() {
Expect(xml.Marshal(response)).To(MatchSnapshot())
})
It("should match .JSON", func() {
Expect(json.Marshal(response)).To(MatchSnapshot())
})
})
})
Describe("SimilarSongs2", func() {
BeforeEach(func() {
response.SimilarSongs2 = &SimilarSongs2{}
})
Context("without data", func() {
It("should match .XML", func() {
Expect(xml.Marshal(response)).To(MatchSnapshot())
})
It("should match .JSON", func() {
Expect(json.Marshal(response)).To(MatchSnapshot())
})
})
Context("with data", func() {
BeforeEach(func() {
child := make([]Child, 1)
child[0] = Child{Id: "1", Title: "title", IsDir: false}
response.SimilarSongs2.Song = child
})
It("should match .XML", func() {
Expect(xml.Marshal(response)).To(MatchSnapshot())
})
It("should match .JSON", func() {
Expect(json.Marshal(response)).To(MatchSnapshot())
})
})
})
Describe("PlayQueue", func() {
BeforeEach(func() {
response.PlayQueue = &PlayQueue{}

2
server/subsonic/stream.go
View File

@ -80,7 +80,7 @@ func (c *StreamController) Download(w http.ResponseWriter, r *http.Request) (*re
return nil, err
}
entity, err := getEntityByID(ctx, c.ds, id)
entity, err := core.GetEntityByID(ctx, c.ds, id)
if err != nil {
return nil, err
}

1
tests/fixtures/lastfm.artist.getsimilar.json vendored Normal file
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@ -0,0 +1 @@
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