/** The full-screen now-playing view. */

import type { Album, PlayerState } from "../api/types";
import { usePlaybackClock } from "../hooks/usePlaybackClock";
import { isBook, nowPlayingText } from "../lib/covers";
import { clock, remainingInAlbum } from "../lib/format";
import { groupOf } from "../lib/search";
import { SHOW_DECORATIVE_ANIMATIONS } from "../lib/theme";
import { Cover } from "./Cover";
import { ProgressBar } from "./ProgressBar";
import { Transport } from "./Transport";
import { VolumeBars } from "./VolumeBars";

interface Props {
  state: PlayerState;
  album: Album | null;
  onToggle: () => void;
  onNext: () => void;
  onPrevious: () => void;
  onSeek: (position: number) => void;
  onVolume: (percent: number) => void;
  onMute: () => void;
  onOpenAlbum: () => void;
  /** Assigning the current album/show to a remote key. `assignPending` is true right
   * after "A" is pressed, waiting for the digit that completes the shortcut. */
  onOpenAssign: () => void;
  assignPending: boolean;
}

export function PlayView({
  state,
  album,
  onToggle,
  onNext,
  onPrevious,
  onSeek,
  onVolume,
  onMute,
  onOpenAlbum,
  onOpenAssign,
  assignPending,
}: Props) {
  const position = usePlaybackClock(state.position, state.playing);
  const now = nowPlayingText(state, album);
  const book = album ? isBook(album) : false;
  const podcast = album ? groupOf(album) === "podcasts" : false;
  const remaining = album
    ? remainingInAlbum(
        album.tracks.map((track) => track.duration),
        state.track_index,
        position,
      )
    : 0;

  return (
    <div style={{ position: "relative", zIndex: 1, height: "100%", minHeight: 0, overflow: "auto" }}>
      <div
        style={{
          minHeight: "100%",
          display: "flex",
          flexDirection: "column",
          alignItems: "center",
          justifyContent: "center",
          gap: "clamp(8px, 1.8vh, 26px)",
          padding: "clamp(14px, 3.5vh, 40px) 40px",
        }}
      >
        <img
          src="/dolphin-mascot.png"
          alt=""
          style={{
            position: "absolute",
            top: "14%",
            left: 0,
            width: 140,
            height: 140,
            objectFit: "contain",
            zIndex: 0,
            pointerEvents: "none",
            opacity: 0.92,
            animation: SHOW_DECORATIVE_ANIMATIONS ? "dolphinSwim 62s linear infinite" : "none",
            // Freezes in its current pose rather than snapping back to frame 0 -
            // `animation: "none"` would restart it, `animationPlayState` just pauses.
            animationPlayState: state.playing ? "running" : "paused",
            filter: "drop-shadow(0 10px 26px oklch(10% 0.05 210 / .45))",
          }}
        />

        <div
          style={{
            height: "min(340px, 32vh)",
            flex: "none",
            position: "relative",
            zIndex: 1,
            display: "flex",
            filter: "drop-shadow(0 20px 40px oklch(10% 0.05 210 / .55))",
          }}
        >
          {album ? (
            <button
              onClick={onOpenAlbum}
              aria-label="Titelliste anzeigen"
              style={{
                border: "none",
                background: "none",
                padding: 0,
                cursor: "pointer",
                display: "flex",
                height: "100%",
              }}
            >
              <Cover
                album={album}
                size={340}
                fit="height"
                radius={book ? "18px 34px 34px 18px" : "28px"}
                label
              />
            </button>
          ) : (
            <div
              style={{
                height: "100%",
                aspectRatio: 1,
                borderRadius: 28,
                background: "oklch(35% 0.03 210)",
              }}
            />
          )}
        </div>

        <div style={{ textAlign: "center", maxWidth: 760, position: "relative", zIndex: 1 }}>
          <div
            style={{
              fontSize: "clamp(28px, 4.6vh, 46px)",
              fontWeight: 900,
              color: "var(--paper)",
              lineHeight: 1.1,
              textWrap: "pretty",
            }}
          >
            {now.title}
          </div>
          <div
            style={{
              fontSize: 20,
              fontWeight: 700,
              color: "oklch(88% 0.02 210 / .8)",
              marginTop: 8,
            }}
          >
            {now.subtitle}
          </div>
          {album && (
            <div
              style={{
                fontSize: 15,
                fontWeight: 800,
                color: "var(--accent-dim)",
                marginTop: 6,
              }}
            >
              {now.progress}
            </div>
          )}
        </div>

        <div style={{ width: "min(680px, 90%)", position: "relative", zIndex: 1 }}>
          <ProgressBar
            position={position}
            duration={state.duration}
            onSeek={onSeek}
            resetKey={now.resetKey}
            height={14}
            interactive
          />
          <div
            style={{
              display: "flex",
              alignItems: "center",
              justifyContent: "space-between",
              gap: 12,
              marginTop: 8,
              fontSize: 14,
              fontWeight: 800,
              color: "oklch(88% 0.02 210 / .8)",
            }}
          >
            <span style={{ fontFamily: "ui-monospace, Menlo, monospace" }}>
              {state.duration ? `−${clock(state.duration - position)}` : ""}
            </span>
            <span>
              {album && !podcast ? `Noch ${clock(remaining)} ${book ? "im Hörbuch" : "im Album"}` : ""}
            </span>
          </div>
        </div>

        <div style={{ position: "relative", zIndex: 1 }}>
          <Transport
            playing={state.playing}
            onToggle={onToggle}
            onNext={onNext}
            onPrevious={onPrevious}
            size={72}
            gap={22}
          />
        </div>

        <div style={{ position: "relative", zIndex: 1 }}>
          <VolumeBars
            volume={state.volume}
            onChange={onVolume}
            onMute={onMute}
            barWidth={18}
            barHeight="clamp(26px, 4.6vh, 44px)"
            gap={5}
            iconSize={24}
          />
        </div>

        {album && (
          <button
            onClick={onOpenAssign}
            aria-label={assignPending ? "Zahl drücken …" : "Taste zuweisen"}
            title="Einer Fernbedienungs-Taste zuweisen (oder: A und dann eine Zahl)"
            style={{
              position: "absolute",
              bottom: 28,
              right: 32,
              border: "none",
              cursor: "pointer",
              width: 52,
              height: 52,
              borderRadius: 999,
              background: assignPending ? "var(--accent)" : "oklch(97% 0.01 210 / .95)",
              color: assignPending ? "#fff" : "var(--ink)",
              fontSize: 22,
              display: "flex",
              alignItems: "center",
              justifyContent: "center",
              boxShadow: "0 8px 24px oklch(15% 0.05 210 / .4)",
            }}
          >
            🎛️
          </button>
        )}
      </div>
    </div>
  );
}