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|
package main
import (
"encoding/json"
"io/ioutil"
"log"
"net/http"
"strconv"
"time"
)
type Image struct {
Size string `json:"size"`
Href string `json:"#text"`
}
type AlbumInfo struct {
Images []Image `json:"image"`
Mbid string
Name string `json:"title"`
Url string
Position `json:"@attr"`
Artist string
}
type Date struct {
Date string `json:"#text"`
Uts string
}
type PageAttrs struct {
TotalPages string
Total string
Page string
User string
}
type ArtistInfo struct {
Name string
Mbid string
Url string
}
type Position struct {
TrackNumber string `json:"position"`
}
type TrackInfo struct {
Name string
Mbid string
Duration string
Artist ArtistInfo
Album AlbumInfo
PlayCount string
Listeners string
}
type RecentTrack struct {
Name string
Mbid string
Url string
Artist struct {
Name string `json:"#text"`
Mbid string
}
Album struct {
Name string `json:"#text"`
Mbid string
}
Images []Image `json:"image"`
Date Date
}
func (app *App) LfmQuery(payload map[string]string) []byte {
r, _ := http.NewRequest("GET", "http://ws.audioscrobbler.com/2.0/", nil)
values := r.URL.Query()
values.Add("api_key", app.Config.Lfm.ApiKey)
values.Add("format", "json")
for key, value := range payload {
values.Add(key, value)
}
r.URL.RawQuery = values.Encode()
resp, _ := http.DefaultClient.Do(r)
body, _ := ioutil.ReadAll(resp.Body)
resp.Body.Close()
return body
}
func GetImage(images []Image, size string) string {
for _, image := range images {
if image.Size == size {
return image.Href
}
}
return "https://lastfm-img2.akamaized.net/i/u/64s/4128a6eb29f94943c9d206c08e625904.png"
}
func (app *App) AlbumInfo(artist, album string) AlbumInfo {
r := app.LfmQuery(map[string]string{
"method": "album.getInfo",
"artist": artist,
"album": album,
})
var dst map[string]AlbumInfo
json.Unmarshal(r, &dst)
return dst["album"]
}
func (app *App) TrackInfo(artist, name string) TrackInfo {
r := app.LfmQuery(map[string]string{
"method": "track.getInfo",
"artist": artist,
"track": name,
"autocorrect": "1",
})
var dst map[string]TrackInfo
json.Unmarshal(r, &dst)
return dst["track"]
}
func (app *App) ImportRecentTracks(user *User) {
s := &Session{
UserId: user.Id,
Client: "import",
ClientVersion: "",
Key: randomToken(16),
Protocol: "1.2.1",
}
app.PutSession(s)
i := app.NewImport(user.LfmName)
payload := map[string]string{
"method": "user.getRecentTracks",
"limit": "200",
"user": user.LfmName,
"to": strconv.Itoa(int(i.To.Unix())),
}
if i.From.IsZero() {
payload["from"] = "0"
} else {
payload["from"] = strconv.Itoa(int(i.From.Unix()))
}
var dst map[string]struct {
Attrs PageAttrs `json:"@attr"`
Tracks []RecentTrack `json:"track"`
}
scrobbles := make([]Scrobble, 0, 200)
var st time.Time
for {
scrobbles = scrobbles[:0]
if !i.LastFetch.IsZero() {
payload["to"] = strconv.Itoa(int(i.LastFetch.Unix()))
}
r := app.LfmQuery(payload)
json.Unmarshal(r, &dst)
tracks := dst["recenttracks"].Tracks
if len(tracks) == 0 {
i.Done = true
break
}
for _, t := range tracks {
ts, _ := strconv.Atoi(t.Date.Uts)
if ts == 0 {
continue
}
st = time.Unix(int64(ts), 0)
scrobble := Scrobble{
Artist: NewCorrectable(t.Artist.Name),
Album: NewCorrectable(t.Album.Name),
TrackName: NewCorrectable(t.Name),
Mbid: t.Mbid,
Time: st,
UserId: user.Id,
SessionKey: s.Key,
Image: GetImage(t.Images, "medium"),
}
app.GetScrobbleSong(&scrobble)
scrobbles = append(scrobbles, scrobble)
}
if err := app.PutScrobbles(scrobbles); err != nil {
log.Println(err)
}
i.LastFetch = st
if err := app.SaveImport(i); err != nil {
log.Println(err)
}
}
if err := app.SaveImport(i); err != nil {
log.Println(err)
}
}
func (app *App) LovedTracks(user string) []TrackInfo {
r := app.LfmQuery(map[string]string{
"method": "user.getLovedTracks",
"limit": "100",
"user": user,
})
var dst map[string]struct {
Attrs PageAttrs `json:"@attr"`
Tracks []TrackInfo `json:"track"`
}
json.Unmarshal(r, &dst)
root := dst["lovedtracks"]
tracks := root.Tracks
return tracks
}
func (app *App) GetSong(s *Song) {
if s.Album != "" || s.Mbid != "" {
if app.GetSongId(s) != nil {
if s.Image == "" {
s.Image = GetImage(app.AlbumInfo(s.Artist, s.Album).Images,
"medium")
}
if err := app.InsertSong(s); err != nil {
log.Println(err)
}
}
} else {
t := app.TrackInfo(s.Artist, s.Name)
s.Album = t.Album.Name
s.Mbid = t.Mbid
s.Image = GetImage(t.Album.Images, "medium")
if app.GetSongId(s) != nil {
app.InsertSong(s)
}
}
}
|
