/
command.go
137 lines (126 loc) · 3.31 KB
/
command.go
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package main
import (
"fmt"
"github.com/koyachi/go-boomkat/boomkat"
"log"
"reflect"
)
func search(word string) {
tag := fmt.Sprintf("CMD:SEARCH:%s", word)
fmt.Printf("%s:START\n", tag)
var err error
records, err := boomkat.Search(word)
if err != nil {
log.Fatal(err)
}
dumpRecords(records, tag, "RES", false)
fmt.Printf("%s:END\n", tag)
}
func downloadRecord(recordId string) {
tag := fmt.Sprintf("CMD:DownloadRecord:%s", recordId)
fmt.Printf("%s:START\n", tag)
tracks, err := tracksFromRecordId(recordId)
if err != nil {
log.Fatal(err)
}
done := make(chan string)
sem := make(chan int, 2)
for _, track := range tracks {
go func(track *boomkat.Track) {
sem <- 1
downloadTrackTask(track)
<-sem
done <- track.Id()
}(track)
}
for i := 0; i < len(tracks); i++ {
trackId := <-done
fmt.Printf("%s:%s:DONE\n", tag, trackId)
}
fmt.Printf("%s:END\n", tag)
}
func downloadTrack(recordId, trackId string) {
tag := fmt.Sprintf("CMD:DownloadTrack:%s:%s", recordId, trackId)
fmt.Printf("%s:START\n", tag)
tracks, err := tracksFromRecordId(recordId)
if err != nil {
log.Fatal(err)
}
for _, track := range tracks {
if track.Id() == trackId {
downloadTrackTask(track)
break
}
}
fmt.Printf("%s:END\n", tag)
}
func downloadTrackTask(track *boomkat.Track) {
tag := fmt.Sprintf("TSK:DLTRACK:%s", track.Id())
fmt.Printf("%s:START\n", tag)
err := track.Download()
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s:END\n", tag)
}
func tracksFromRecordId(recordId string) ([]*boomkat.Track, error) {
record, err := boomkat.NewRecordFromId(recordId)
if err != nil {
return nil, err
}
tracks, err := record.SampleTracks()
if err != nil {
return nil, err
}
return tracks, nil
}
func dumpRecord(index int, commandTag, typeTag string, record *boomkat.Record) {
fmt.Printf("%s:%s:[%d] = {id = %s, artist = %s, title = %s, label = %s, genre = %s, url = %s, thumbnail = %s}\n",
commandTag, typeTag, index, record.Id, record.Artist, record.Title, record.Label, record.Genre, record.Url(), record.CoverUrl)
}
func dumpRecords(records []*boomkat.Record, commandTag, typeTag string, doAsync bool) {
for i, record := range records {
if doAsync {
go dumpRecord(i, commandTag, typeTag, record)
} else {
dumpRecord(i, commandTag, typeTag, record)
}
}
}
func recordInfo(recordId string) {
tag := fmt.Sprintf("CMD:RecordInfo:%s", recordId)
fmt.Printf("%s:START\n", tag)
record, err := boomkat.NewRecordFromId(recordId)
if err != nil {
log.Fatal(err)
}
dumpRecord(0, tag, "RECORD_INFO", record)
done := make(chan bool)
dumpMoreRecords := func(record *boomkat.Record, methodName, tag1, tag2 string) {
results := reflect.ValueOf(record).MethodByName(methodName).Call([]reflect.Value{})
records := (results[0].Interface()).([]*boomkat.Record)
e := results[1].Interface()
// nil guard before type assertion
if e != nil {
err := (e).(error)
if err != nil {
log.Fatal(err)
}
}
dumpRecords(records, tag1, tag2, true)
done <- true
}
m := map[string]string{
"RecordsAlsoBought": "ALSO_BOUGHT",
"RecordsByTheSameArtist": "BY_THE_SAME_ARTIST",
"RecordsByTheSameLabel": "BY_THE_SAME_LABEL",
"RecordsYouMightLike": "YOU_MIGHT_LIKE",
}
for k, v := range m {
go dumpMoreRecords(record, k, tag, v)
}
for i := 0; i < 4; i++ {
<-done
}
fmt.Printf("%s:END\n", tag)
}