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package main
import (
"encoding/json"
"io/ioutil"
"log"
"net/http"
"strconv"
)
type AlbumImage struct {
Size string `json:"size"`
Href string `json:"#text"`
}
func (a AlbumInfo) GetImage(size string) string {
images := a.Images
for _, image := range images {
if image.Size == size {
return image.Href
}
}
return "https://lastfm-img2.akamaized.net/i/u/64s/4128a6eb29f94943c9d206c08e625904.png"
}
type AlbumInfo struct {
Images []AlbumImage `json:"image"`
Mbid string `json:"mbid"`
Name string `json:"title"`
}
type ArtistInfo struct {
Name string `json:"name"`
}
type Position struct {
TrackNumber string `json:"position"`
}
type TrackInfo struct {
Name string `json:"name"`
Mbid string `json:"mbid"`
Duration string `json:"duration"`
Artist ArtistInfo `json:"artist"`
Album AlbumInfo `json:"album"`
Position `json:"@attr"`
}
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)
return body
}
func (app *App) AlbumImage(artist, album string) string {
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"].GetImage("medium")
}
func (app *App) TrackInfo(artist, name string) *Scrobble {
r := app.LfmQuery(map[string]string{
"method": "track.getInfo",
"artist": artist,
"track": name,
"autocorrect": "1",
})
var dst map[string]TrackInfo
json.Unmarshal(r, &dst)
track := dst["track"]
duration, _ := strconv.Atoi(track.Duration)
position, _ := strconv.Atoi(track.TrackNumber)
s := &Scrobble{
Artist: NewCorrectable(track.Artist.Name),
Album: NewCorrectable(track.Album.Name),
TrackName: NewCorrectable(track.Name),
Duration: duration * 1000,
TrackNumber: position,
Mbid: track.Mbid,
Image: track.Album.GetImage("medium"),
}
return s
}
func (app *App) GetSong(s *Scrobble) {
var err error
if s.Album.Name != "" {
id, _ := app.GetSongId(s.Artist.Name, s.Album.Name, s.TrackName.Name)
if id == 0 {
s.Image = app.AlbumImage(s.Artist.Name, s.Album.Name)
id, err = app.InsertSong(s)
if err != nil {
log.Println(err)
}
}
s.SongId = id
} else {
s2 := app.TrackInfo(s.Artist.Name, s.TrackName.Name)
id, err := app.InsertSong(s2)
if err != nil {
log.Println(err)
}
s.SongId = id
}
}
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