package scrobbler

import (
	"log"

	"golang.fcuny.net/mpd-stats/internal/mpd"
)

type Scrobbler struct {
	player *mpd.Player
}

func NewScrobbler(net string, addr string) (*Scrobbler, error) {
	var s Scrobbler

	p, err := mpd.NewPlayer(net, addr)
	if err != nil {
		return nil, err
	}

	s.player = p
	return &s, nil
}

func (s *Scrobbler) Close() error {
	return s.player.Close()
}

func (s *Scrobbler) Run() error {
	var (
		currentRecord  *Record
		previousRecord *Record
	)

	for {
		e := <-s.player.Watcher.Event
		if e != "" {
			attrs, err := s.player.Client.CurrentSong()
			if err != nil {
				log.Fatalf("could not get current song: %v", err)
			}

			if currentRecord == nil {
				currentRecord, err = NewRecord(attrs)
				if err != nil {
					log.Fatalf("could not create a log: %v", err)
				}
				log.Printf("we're playing %s/%s/%s [%s]\n", currentRecord.Artist, currentRecord.Album, currentRecord.Title, currentRecord.Duration)
				previousRecord = currentRecord
				continue
			}

			if currentRecord.Title != attrs["Title"] || currentRecord.Artist != attrs["Artist"] || currentRecord.Album != attrs["Album"] {
				currentRecord, err = NewRecord(attrs)
				if err != nil {
					log.Fatalf("could not create a log: %v", err)
				}
			}

			if currentRecord.Id != previousRecord.Id {
				log.Printf("we're playing %s/%s/%s [%s]\n", currentRecord.Artist, currentRecord.Album, currentRecord.Title, currentRecord.Duration)
				previousRecord = currentRecord
			}
		}
	}
}