package read

import (
	"os"
	"path/filepath"

	tag "github.com/dhowden/tag"
	duration "github.com/felamaslen/go-music-player/pkg/read/duration"
)

func ReadFile(basePath string, scannedFile *File) (song *Song, err error) {
  fullPath := filepath.Join(basePath, scannedFile.RelativePath)
  file, errFile := os.Open(fullPath)
  if errFile != nil {
    return &Song{}, errFile
  }

  defer file.Close()

  tags, errTags := tag.ReadFrom(file)
  if errTags != nil {
    return &Song{}, errTags
  }

  durationSeconds := duration.GetSongDurationSeconds(file, tags)

  trackNumber, _ := tags.Track()

  result := Song{
    TrackNumber: trackNumber,
    Title: tags.Title(),
    Artist: tags.Artist(),
    Album: tags.Album(),
    Duration: durationSeconds,
    BasePath: basePath,
    RelativePath: scannedFile.RelativePath,
    ModifiedDate: scannedFile.ModifiedDate,
  }

  return &result, nil
}