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package main
import (
"database/sql"
"encoding/xml"
"fmt"
"log"
"time"
_ "github.com/mattn/go-sqlite3"
)
type Scrobble struct {
Artist Correctable `xml:"artist" json:"artist"`
AlbumArtist Correctable `xml:"albumArtist" json:"albumArtist"`
TrackName Correctable `xml:"track" json:"track"`
Album Correctable `xml:"album" json:"album"`
TrackNumber int `xml:"-" json:"-"`
Duration int `xml:"-" json:"-"`
Time time.Time `xml:"timestamp" json:"timestamp,string"`
Chosen bool `xml:"-" json:"-"`
Mbid string `xml:"-" json:"-"`
Session string `xml:"-" json:"-"`
Image string
}
type Session struct {
XMLName xml.Name `json:"-" xml:"session"`
User string `json:"name" xml:"name"`
Key string `json:"key" xml:"key"`
Client string
Protocol string
Created time.Time
Subscriber int64 `json:"subscriber" xml:"subscriber"`
}
type DataStore interface {
PutSession(*Session)
GetSession(key string) (*Session, error)
GetPassword(userName string) (string, error)
PutScrobbles([]Scrobble)
RecentScrobbles(lfmName string) []*Scrobble
Api
}
type SqlStore struct {
*sql.DB
}
func NewSession(user string, client string, protocol string) *Session {
return &Session{
User: user,
Key: randomToken(16),
Client: client,
Protocol: protocol,
Created: time.Now(),
}
}
func (store *SqlStore) PutSession(s *Session) {
_, err := store.Exec("INSERT INTO scrobbling_sessions VALUES ($1, $2, $3, $4, $5)",
s.User, s.Key, s.Client, s.Protocol, s.Created)
if err != nil {
log.Println(err)
}
}
func (store *SqlStore) GetSession(key string) (*Session, error) {
s := &Session{}
row := store.QueryRow("SELECT * FROM scrobbling_sessions WHERE key = $1", key)
err := row.Scan(&s.User, &s.Key, &s.Client, &s.Protocol, &s.Created)
return s, err
}
func (store *SqlStore) GetPassword(name string) (string, error) {
var password string
row := store.QueryRow("SELECT lfm_password FROM users WHERE lfm_name = $1", name)
err := row.Scan(&password)
return password, err
}
func (store *SqlStore) PutScrobbles(scrobbles []Scrobble) {
for _, s := range scrobbles {
if _, err := store.Exec(
"INSERT INTO scrobbles VALUES ($1, $2, $3, $4,$5, $6, $7, $8, $9, $10)",
s.Artist,
s.AlbumArtist,
s.TrackName,
s.Album,
s.TrackNumber,
s.Duration,
s.Time,
s.Chosen,
s.Mbid,
s.Session,
); err != nil {
fmt.Printf("error : %v\n", err)
}
}
}
func (store *SqlStore) RecentScrobbles(lfmName string) []*Scrobble {
scrobbles := make([]*Scrobble, 0, 10)
rows, err := store.Query("SELECT artist, album, trackname, time, image "+
"FROM scrobbles JOIN scrobbling_sessions ON session = key "+
"LEFT JOIN songs ON scrobbles.mbid = songs.mbid "+
"WHERE lfm_name=$1 ORDER BY time DESC LIMIT 10",
lfmName)
if err != nil {
log.Println(err)
}
for rows.Next() {
scrobble := new(Scrobble)
rows.Scan(&scrobble.Artist.Name, &scrobble.Album.Name,
&scrobble.TrackName.Name, &scrobble.Time, &scrobble.Image)
scrobbles = append(scrobbles, scrobble)
}
rows.Close()
return scrobbles
}
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