import { useState, useEffect } from 'react'
import { X, Film, Loader2, FolderOpen, AlertCircle } from 'lucide-react'
import { api } from '../lib/api'
import { useDarkMode } from '../context/ThemeContext'

// Klick auf den Titel in „Neueste Jobs" (Commander-Wunsch 24.07.): sofort
// sehen, WAS da gerippt wurde — Poster, Jahr, Beschreibung — plus die
// nüchternen Job-Fakten (Ziel, Ausgabepfad, Fehler).

interface JobMeta {
  year?: number
  overview?: string
  poster_path?: string
  genres?: string[]
  runtime?: number
  type?: string
  source?: string
}

interface JobDetail {
  id: string
  type: string
  status: string
  device: string
  startTime: string
  endTime?: string
  progress: number
  title?: string
  error?: string
  target_dir?: string
  output_path?: string
  meta?: JobMeta | null
}

// TMDB liefert relative Poster-Pfade, OMDb/Jikan absolute URLs
function posterUrl(meta?: JobMeta | null): string | null {
  const p = meta?.poster_path
  if (!p) return null
  return p.startsWith('http') ? p : `https://image.tmdb.org/t/p/w342${p}`
}

const STATUS_LABEL: Record<string, string> = {
  pending: 'Wartend',
  processing: 'Rippen',
  transcoding: 'Komprimieren',
  canceling: 'Wird abgebrochen…',
  completed: 'Fertig',
  failed: 'Fehler',
}

export default function JobDetailModal({ jobId, onClose }: { jobId: string | null, onClose: () => void }) {
  const [detail, setDetail] = useState<JobDetail | null>(null)
  const [laedt, setLaedt] = useState(false)
  const { theme } = useDarkMode()

  useEffect(() => {
    if (!jobId) {
      setDetail(null)
      return
    }
    setLaedt(true)
    api.get(`/jobs/${jobId}/detail`)
      .then(r => setDetail(r.data))
      .catch(() => setDetail(null))
      .finally(() => setLaedt(false))
  }, [jobId])

  if (!jobId) return null

  const meta = detail?.meta
  const poster = posterUrl(meta)

  return (
    <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/50 backdrop-blur-sm" onClick={onClose}>
      <div
        className={`w-full max-w-2xl max-h-[85vh] overflow-y-auto rounded-xl shadow-2xl ${theme === 'dark' ? 'bg-slate-800' : 'bg-white'}`}
        onClick={e => e.stopPropagation()}
      >
        <div className={`px-6 py-4 border-b flex items-center justify-between ${theme === 'dark' ? 'border-slate-700' : 'border-slate-200'}`}>
          <h2 className={`text-lg font-bold truncate ${theme === 'dark' ? 'text-slate-100' : 'text-slate-900'}`}>
            {detail?.title || 'Job-Details'}
          </h2>
          <button onClick={onClose} className={`p-1.5 rounded flex-shrink-0 ${theme === 'dark' ? 'hover:bg-slate-700 text-slate-400' : 'hover:bg-slate-100 text-slate-500'}`}>
            <X size={18} />
          </button>
        </div>

        {laedt ? (
          <div className="flex items-center justify-center py-16">
            <Loader2 className="animate-spin text-indigo-500" size={28} />
          </div>
        ) : !detail ? (
          <p className={`px-6 py-10 text-sm text-center ${theme === 'dark' ? 'text-slate-400' : 'text-slate-500'}`}>
            Job nicht gefunden.
          </p>
        ) : (
          <div className="p-6 space-y-5">
            {/* Film/Serien-Info aus der Disc-Erkennung */}
            <div className="flex gap-5">
              {poster ? (
                <img src={poster} alt={detail.title || ''} className="w-32 rounded-lg object-cover flex-shrink-0 shadow-lg" />
              ) : (
                <div className={`w-32 h-48 rounded-lg flex items-center justify-center flex-shrink-0 ${theme === 'dark' ? 'bg-slate-900 text-slate-600' : 'bg-slate-100 text-slate-400'}`}>
                  <Film size={32} />
                </div>
              )}
              <div className="min-w-0">
                <p className={`text-xl font-bold ${theme === 'dark' ? 'text-slate-100' : 'text-slate-900'}`}>
                  {detail.title || 'Unbekannt'}
                  {meta?.year ? <span className={`font-normal ${theme === 'dark' ? 'text-slate-400' : 'text-slate-500'}`}> ({meta.year})</span> : null}
                </p>
                <p className={`text-xs mt-1 ${theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}`}>
                  {meta?.type === 'tv' ? 'Serie' : 'Film'}
                  {meta?.source ? ` · Quelle: ${meta.source}` : ''}
                  {meta?.runtime ? ` · ${meta.runtime} min` : ''}
                </p>
                {meta?.genres && meta.genres.length > 0 && (
                  <div className="flex flex-wrap gap-1.5 mt-2">
                    {meta.genres.map(g => (
                      <span key={g} className={`text-xs px-2 py-0.5 rounded-full ${theme === 'dark' ? 'bg-slate-700 text-slate-300' : 'bg-slate-100 text-slate-600'}`}>{g}</span>
                    ))}
                  </div>
                )}
                {meta?.overview ? (
                  <p className={`text-sm mt-3 leading-relaxed ${theme === 'dark' ? 'text-slate-300' : 'text-slate-600'}`}>
                    {meta.overview}
                  </p>
                ) : (
                  <p className={`text-sm mt-3 italic ${theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}`}>
                    Keine Metadaten zu diesem Job gespeichert — die Disc wurde ohne Erkennung gerippt.
                  </p>
                )}
              </div>
            </div>

            {/* Nüchterne Job-Fakten */}
            <div className={`rounded-lg p-4 grid grid-cols-[auto_1fr] gap-x-6 gap-y-1.5 text-sm ${theme === 'dark' ? 'bg-slate-900' : 'bg-slate-50'}`}>
              <span className={theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}>Status</span>
              <span className={theme === 'dark' ? 'text-slate-200' : 'text-slate-700'}>
                {STATUS_LABEL[detail.status] || detail.status}{detail.progress > 0 && detail.progress < 100 ? ` · ${detail.progress} %` : ''}
              </span>
              <span className={theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}>Laufwerk</span>
              <span className={`font-mono text-xs self-center ${theme === 'dark' ? 'text-slate-200' : 'text-slate-700'}`}>{detail.device || '—'}</span>
              <span className={theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}>Gestartet</span>
              <span className={theme === 'dark' ? 'text-slate-200' : 'text-slate-700'}>
                {detail.startTime ? new Date(detail.startTime).toLocaleString('de-DE') : '—'}
              </span>
              <span className={theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}>Beendet</span>
              <span className={theme === 'dark' ? 'text-slate-200' : 'text-slate-700'}>
                {detail.endTime ? new Date(detail.endTime).toLocaleString('de-DE') : '—'}
              </span>
              {(detail.output_path || detail.target_dir) && (
                <>
                  <span className={`flex items-center gap-1 ${theme === 'dark' ? 'text-slate-500' : 'text-slate-400'}`}><FolderOpen size={13} /> Ablage</span>
                  <span className={`font-mono text-xs self-center break-all ${theme === 'dark' ? 'text-slate-200' : 'text-slate-700'}`}>
                    {detail.output_path || detail.target_dir}
                  </span>
                </>
              )}
            </div>

            {detail.error && (
              <div className={`rounded-lg p-4 flex items-start gap-2.5 text-sm ${theme === 'dark' ? 'bg-rose-900/30 text-rose-300' : 'bg-rose-50 text-rose-700'}`}>
                <AlertCircle size={16} className="flex-shrink-0 mt-0.5" />
                <span className="break-words min-w-0">{detail.error}</span>
              </div>
            )}
          </div>
        )}
      </div>
    </div>
  )
}