import { Captions, ExternalLink, Pause, Play, Radio, SkipBack, SkipForward, Volume2 } from "lucide-react";
import { Button } from "./Button";
import { Slider } from "./Slider";
import styles from "./SpotifyPlayerBar.module.css";

type SpotifyPlayerBarProps = {
  className?: string;
  connected?: boolean;
  ready?: boolean;
  trackTitle?: string;
  artist?: string;
  album?: string;
  imageUrl?: string;
  externalUrl?: string;
  isPlaying?: boolean;
  positionMs?: number;
  durationMs?: number;
  volume?: number;
  error?: string;
  connectHref?: string;
  onTogglePlay?: () => void;
  onPrevious?: () => void;
  onNext?: () => void;
  onSeek?: (positionMs: number) => void;
  onVolume?: (volume: number) => void;
  lyricsOpen?: boolean;
  onToggleLyrics?: () => void;
};

function formatTime(ms: number) {
  if (!Number.isFinite(ms) || ms <= 0) return "0:00";
  const total = Math.floor(ms / 1000);
  const minutes = Math.floor(total / 60);
  return `${minutes}:${String(total % 60).padStart(2, "0")}`;
}

export function SpotifyPlayerBar({
  className,
  connected = false,
  ready = false,
  trackTitle,
  artist,
  album = "Aurora SpotiRip",
  imageUrl,
  externalUrl,
  isPlaying = false,
  positionMs = 0,
  durationMs = 0,
  volume = 0.7,
  error,
  connectHref = "/_api/spotify-auth",
  onTogglePlay,
  onPrevious,
  onNext,
  onSeek,
  onVolume,
  lyricsOpen = false,
  onToggleLyrics,
}: SpotifyPlayerBarProps) {
  const usable = connected && ready;
  const title = trackTitle || (connected ? "Nothing playing" : "Spotify playback");
  const subtitle =
    error ||
    artist ||
    (!connected
      ? "Connect your account to activate playback"
      : ready
        ? "Press play on any song"
        : "Starting Spotify playback…");
  return (
    <section className={`${styles.player} ${className || ""}`} aria-label="Spotify player">
      <div className={styles.nowPlaying}>
        <div className={styles.cover}>
          {imageUrl ? <img src={imageUrl} alt="" /> : <Radio size={20} />}
        </div>
        <div className={styles.trackText}>
          <strong>{title}</strong>
          <span>{subtitle}</span>
        </div>
      </div>

      <div className={styles.transport}>
        <div className={styles.controls}>
          <Button variant="ghost" size="icon-sm" disabled={!usable} onClick={onPrevious} aria-label="Previous track">
            <SkipBack size={17} />
          </Button>
          <Button
            size="icon"
            disabled={!usable}
            onClick={onTogglePlay}
            aria-label={isPlaying ? "Pause" : "Play"}
          >
            {isPlaying ? <Pause size={18} /> : <Play size={18} fill="currentColor" />}
          </Button>
          <Button variant="ghost" size="icon-sm" disabled={!usable} onClick={onNext} aria-label="Next track">
            <SkipForward size={17} />
          </Button>
        </div>
        <div className={styles.timeline}>
          <span>{formatTime(positionMs)}</span>
          <Slider
            className={styles.timelineSlider}
            min={0}
            max={Math.max(durationMs, 1)}
            step={1000}
            value={[Math.min(positionMs, Math.max(durationMs, 1))]}
            disabled={!usable || durationMs <= 0}
            onValueCommit={(value) => onSeek?.(value[0] || 0)}
          />
          <span>{formatTime(durationMs)}</span>
        </div>
      </div>

      <div className={styles.playerMeta}>
        <div className={styles.albumText}>{album}</div>
        {connected && externalUrl ? (
          <a
            className={styles.spotifyLink}
            href={externalUrl}
            target="_blank"
            rel="noreferrer"
          >
            Spotify <ExternalLink size={12} />
          </a>
        ) : null}
        {connected ? (
          <>
            <Button
              variant={lyricsOpen ? "outline" : "ghost"}
              size="icon-sm"
              onClick={onToggleLyrics}
              aria-label="Toggle lyrics"
            >
              <Captions size={16} />
            </Button>
            <Volume2 size={17} />
            <Slider
              className={styles.volumeSlider}
              min={0}
              max={1}
              step={0.05}
              value={[volume]}
              onValueChange={(value) => onVolume?.(value[0] ?? volume)}
            />
          </>
        ) : (
          <Button size="sm" asChild>
            <a href={connectHref}>
              Connect Spotify <ExternalLink size={14} />
            </a>
          </Button>
        )}
      </div>
    </section>
  );
}