import Link from 'next/link';
import Image from 'next/image';
import { createTrack, deleteTrack, toggleTrack } from '@/actions/admin-radio-autodj';
import { StatusCard } from '@/components/admin/dashboard';
import { prisma } from '@/lib/prisma';
import { Disc3 } from 'lucide-react';
import { getTranslations } from "next-intl/server";

export const dynamic = 'force-dynamic';

export const metadata = { title: 'Radio AutoDJ' };

type Track = {
  id: bigint;
  title: string;
  artist: string | null;
  album: string | null;
  artworkUrl: string | null;
  duration: number | null;
  playCount: number;
  lastPlayedAt: Date | null;
  isActive: boolean;
  sortOrder: number;
};

function formatDuration(seconds: number | null): string {
  if (seconds == null || seconds < 0) return '\u2014';
  const m = Math.floor(seconds / 60);
  const s = seconds % 60;
  return `${m}:${String(s).padStart(2, '0')}`;
}

function formatDate(d: Date | null): string {
  return d ? d.toISOString().slice(0, 16).replace('T', ' ') : '\u2014';
}

export default async function AdminRadioAutoDjPage() {
  const t = await getTranslations("pages.admin.radio");

  let tracks: Track[] = [];
  let dbError = false;

  try {
    tracks = await prisma.radioAutoDjPlaylist
      .findMany({
        select: {
          id: true,
          title: true,
          artist: true,
          album: true,
          artworkUrl: true,
          duration: true,
          playCount: true,
          lastPlayedAt: true,
          isActive: true,
          sortOrder: true,
        },
        orderBy: [{ sortOrder: 'asc' }, { title: 'asc' }],
      })
      .catch(() => {
        dbError = true;
        return [];
      });
  } catch {
    dbError = true;
    tracks = [];
  }

  const activeCount = tracks.filter((t) => t.isActive).length;
  const inactiveCount = tracks.length - activeCount;

  return (
    <main>
      <nav className="text-xs text-gray-500 dark:text-gray-400 mb-2">
        <Link href="/admin/radio">{t("title")}</Link> ·{' '}
        <Link href="/admin/radio/settings">{t("settings")}</Link> ·{' '}
        <Link href="/admin/radio/banners">{t("banners.title")}</Link> ·{' '}
        <Link href="/admin/radio/ranks">{t("ranks")}</Link> ·{' '}
        <Link href="/admin/radio/history">{t("history")}</Link> ·{' '}
        <Link href="/admin/radio/autodj">{t("autoDj")}</Link>
      </nav>

      <section className="mt-6">
        <div className="flex items-center gap-3 mb-6">
          <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-[var(--color-primary)]/20 to-[var(--color-primary)]/5 grid place-items-center">
            <Disc3 size={20} className="text-[var(--color-primary)]" />
          </div>
          <div>
            <h1 className="m-0 text-xl font-extrabold text-[var(--color-text)]">{t("autoDjForm.title")}</h1>
            <p className="m-0 text-xs text-[var(--color-text-muted)] mt-0.5">{t("autoDjForm.subtitle")}</p>
          </div>
        </div>

        {dbError ? (
          <div className="admin-card mb-6">
            <p className="text-xs text-gray-500 dark:text-gray-400 m-0">
              {t("autoDjForm.dbError")}
            </p>
          </div>
        ) : (
          <div className="grid grid-cols-[repeat(auto-fit,minmax(180px,1fr))] gap-3.5 mb-6">
            <StatusCard label={t("autoDjForm.tracks")} value={tracks.length} icon="\u{1F3B5}" />
            <StatusCard
              label={t("autoDjForm.active")}
              value={activeCount}
              state={activeCount > 0 ? 'ok' : 'neutral'}
              icon="\u{25B6}\uFE0F"
            />
            <StatusCard
              label={t("autoDjForm.inactive")}
              value={inactiveCount}
              state={inactiveCount > 0 ? 'warn' : 'neutral'}
              icon="\u{23F8}\uFE0F"
            />
          </div>
        )}
      </section>

      <section className="mt-6">
        <h2 className="admin-section-title">{t("autoDjForm.addTrack")}</h2>
        <form action={createTrack} className="admin-card">
          <div className="grid grid-cols-1 gap-4 md:grid-cols-2">
            <div>
              <label htmlFor="new_title" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.title")}
              </label>
              <input
                id="new_title"
                name="title"
                placeholder={t("autoDjForm.titlePlaceholder")}
                required
                style={{ width: '100%' }}
              />
            </div>
            <div>
              <label htmlFor="new_artist" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.artist")}
              </label>
              <input id="new_artist" name="artist" style={{ width: '100%' }} />
            </div>
            <div>
              <label htmlFor="new_album" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.album")}
              </label>
              <input id="new_album" name="album" style={{ width: '100%' }} />
            </div>
            <div>
              <label htmlFor="new_artworkUrl" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.artworkUrl")}
              </label>
              <input
                id="new_artworkUrl"
                name="artworkUrl"
                placeholder={t("autoDjForm.artworkUrlPlaceholder")}
                style={{ width: '100%' }}
              />
            </div>
            <div>
              <label htmlFor="new_duration" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.duration")}
              </label>
              <input
                id="new_duration"
                name="duration"
                type="number"
                min={0}
                placeholder={t("autoDjForm.durationPlaceholder")}
                style={{ width: '100%' }}
              />
            </div>
            <div>
              <label htmlFor="new_sortOrder" style={{ display: 'block', fontWeight: 700 }}>
                {t("autoDjForm.sortOrder")}
              </label>
              <input
                id="new_sortOrder"
                name="sortOrder"
                type="number"
                defaultValue={0}
                style={{ width: '100%' }}
              />
            </div>
            <div style={{ display: 'flex', alignItems: 'flex-end' }}>
              <label style={{ display: 'inline-flex', gap: '0.4rem', alignItems: 'center' }}>
                <input type="checkbox" name="isActive" value="1" defaultChecked /> {t("autoDjForm.active")}
              </label>
            </div>
          </div>
          <div style={{ marginTop: '0.75rem' }}>
            <button type="submit" className="btn btn-primary">
              {t("autoDjForm.addTrack")}
            </button>
          </div>
        </form>
      </section>

      <section className="mt-6">
        <h2 className="admin-section-title">{t("autoDjForm.playlist", { count: tracks.length })}</h2>
        {tracks.length === 0 ? (
          <div className="admin-empty">{t("autoDjForm.noTracks")}</div>
        ) : (
          <div className="overflow-x-auto">
            <table>
              <thead>
                <tr>
                  <th>{t("autoDjForm.colOrder")}</th>
                  <th>{t("autoDjForm.colTitle")}</th>
                  <th>{t("autoDjForm.colArtist")}</th>
                  <th>{t("autoDjForm.colAlbum")}</th>
                  <th>{t("autoDjForm.colDuration")}</th>
                  <th>{t("autoDjForm.colPlays")}</th>
                  <th>{t("autoDjForm.colLastPlayed")}</th>
                  <th>{t("autoDjForm.colStatus")}</th>
                  <th>{t("autoDjForm.colActions")}</th>
                </tr>
              </thead>
              <tbody>
                {tracks.map((track) => (
                  <tr key={String(track.id)}>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{track.sortOrder}</td>
                    <td>
                      <span className="inline-flex gap-2 items-center">
                        {track.artworkUrl ? (
                          <Image
                            src={track.artworkUrl}
                            alt=""
                            width={32}
                            height={32}
                            style={{ borderRadius: 4, objectFit: 'cover' }}
                            unoptimized
                          />
                        ) : null}
                        <strong>{track.title}</strong>
                      </span>
                    </td>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{track.artist ?? '\u2014'}</td>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{track.album ?? '\u2014'}</td>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{formatDuration(track.duration)}</td>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{track.playCount}</td>
                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">{formatDate(track.lastPlayedAt)}</td>
                    <td>
                      <span className={`inline-block text-[0.72rem] font-bold px-2 py-0.5 rounded-full ${track.isActive ? 'bg-green-600/20 text-[var(--color-text)]' : 'bg-red-500/22 text-[var(--color-text)]'}`}>
                        {track.isActive ? t("autoDjForm.activeLabel") : t("autoDjForm.inactiveLabel")}
                      </span>
                    </td>
                    <td>
                      <div style={{ display: 'flex', gap: '0.4rem', flexWrap: 'wrap' }}>
                        <form action={toggleTrack}>
                          <input type="hidden" name="id" value={String(track.id)} />
                          <input type="hidden" name="isActive" value={track.isActive ? '0' : '1'} />
                          <button type="submit" className="btn">
                            {track.isActive ? t("autoDjForm.deactivate") : t("autoDjForm.activate")}
                          </button>
                        </form>
                        <form action={deleteTrack}>
                          <input type="hidden" name="id" value={String(track.id)} />
                          <button type="submit" className="btn btn-danger">
                            {t("autoDjForm.delete")}
                          </button>
                        </form>
                      </div>
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        )}
      </section>
    </main>
  );
}