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|
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
)
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"`
}
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
}
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 (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"
}
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) RecentTracks(user string) {
r := app.LfmQuery(map[string]string{
"method": "user.getRecentTracks",
"limit": "10",
"user": user,
})
fmt.Println(string(r))
}
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 != "" {
if app.GetSongId(s) != nil {
if s.Image == "" {
s.Image = app.AlbumInfo(s.Artist, s.Album).GetImage("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 = t.Album.GetImage("medium")
app.InsertSong(s)
}
}
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