import { FileAudio } from 'lucide-react'
import { formatBytes, formatDuration } from '@/lib/format'
import type { AudioFile, Book, LibraryItem, Podcast } from '@/types/abs'

function collectAudioFiles(item: LibraryItem): AudioFile[] {
  if (item.mediaType === 'book') return (item.media as Book).audioFiles ?? []
  const eps = (item.media as Podcast).episodes ?? []
  return eps.map((e) => e.audioFile).filter((f): f is AudioFile => !!f)
}

export function FilesTab({ item }: { item: LibraryItem }) {
  const files = collectAudioFiles(item)

  if (files.length === 0) {
    return <p className="text-sm text-text-muted">Keine Audiodateien vorhanden.</p>
  }

  return (
    <div className="overflow-hidden rounded-lg border border-border">
      {files.map((f, i) => (
        <div
          key={`${f.ino}-${i}`}
          className="flex items-center gap-3 border-b border-border px-3 py-2.5 last:border-b-0"
        >
          <FileAudio size={18} className="shrink-0 text-text-muted" />
          <div className="min-w-0 flex-1">
            <p className="truncate text-sm text-text">{f.metadata.filename}</p>
            <p className="text-xs text-text-muted">
              {f.codec?.toUpperCase()} {f.bitRate ? `· ${Math.round(f.bitRate / 1000)} kbps` : ''}
            </p>
          </div>
          <span className="tnum shrink-0 text-xs text-text-muted">{formatDuration(f.duration)}</span>
          <span className="tnum hidden shrink-0 text-xs text-text-muted sm:block">
            {formatBytes(f.metadata.size)}
          </span>
        </div>
      ))}
    </div>
  )
}