import { useState, useEffect } from 'react';
import './App.css';

interface Job {
  id: string;
  name: string;
  url: string;
  status: string;
  date: string;
  shooting_type: string;
  last_updated?: string;
}

type AccountType = 'kiga' | 'schule';

function App() {
  const [activeTab, setActiveTab] = useState<AccountType>('kiga');
  const [jobsCache, setJobsCache] = useState<Record<AccountType, Job[] | null>>({
    kiga: null,
    schule: null,
  });
  const [isLoading, setIsLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);
  
  // New state for the detail modal
  const [selectedJob, setSelectedJob] = useState<Job | null>(null);
  const [processingJobId, setProcessingJobId] = useState<string | null>(null);

  // States for Statistics Polling
  const [statsTaskId, setStatsTaskId] = useState<string | null>(null);
  const [statsProgress, setStatsProgress] = useState<string>('');
  const [statsResult, setStatsResult] = useState<any[] | null>(null);
  const [isStatsRunning, setIsStatsRunning] = useState(false);

  // States for QR Generator
  const [isQrGenerating, setIsQrGenerating] = useState(false);

  const [eventTypes, setEventTypes] = useState<any[]>([]);
  const [selectedEventType, setSelectedEventType] = useState<string>("");
  const [isListGenerating, setIsListGenerating] = useState(false);

  const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://192.168.178.6:8002';

  const fetchJobs = async (account: AccountType, forceRefresh = false) => {
    setIsLoading(true);
    setError(null);
    try {
      const response = await fetch(`${API_BASE_URL}/api/jobs?account_type=${account}&force_refresh=${forceRefresh}`);
      if (!response.ok) {
        const errData = await response.json();
        throw new Error(errData.detail || 'Fehler beim Abrufen der Aufträge');
      }
      const data: Job[] = await response.json();
      setJobsCache(prev => ({ ...prev, [account]: data }));
    } catch (err: any) {
      setError(err.message);
    } finally {
      setIsLoading(false);
    }
  };

  useEffect(() => {
    // Only fetch if we haven't already fetched it
    if (jobsCache[activeTab] === null) {
      fetchJobs(activeTab, false);
    }
  }, [activeTab]);

  const handleRefresh = () => fetchJobs(activeTab, true);
  useEffect(() => {
    const fetchEventTypes = async () => {
      try {
        const res = await fetch(`${API_BASE_URL}/api/calendly/event-types`);
        if (res.ok) {
          const data = await res.json();
          setEventTypes(data.event_types || []);
          if (data.event_types && data.event_types.length > 0) {
            setSelectedEventType(data.event_types[0].name);
          }
        }
      } catch (err) {
        console.error("Failed to fetch event types:", err);
      }
    };
    fetchEventTypes();
  }, []);


  // Statistics Task Functions
  const handleStartStatistics = async (job: Job) => {
    setIsStatsRunning(true);
    setStatsResult(null);
    setStatsProgress('Starte Analyse...');
    setError(null);

    try {
      const response = await fetch(`${API_BASE_URL}/api/jobs/${job.id}/statistics?account_type=${activeTab}`, {
        method: 'POST'
      });
      if (!response.ok) throw new Error('Konnte Statistik-Prozess nicht starten.');
      const data = await response.json();
      setStatsTaskId(data.task_id);
    } catch (err: any) {
      setError(err.message);
      setIsStatsRunning(false);
    }
  };

  useEffect(() => {
    let interval: any;
    
    if (statsTaskId && isStatsRunning) {
      interval = setInterval(async () => {
        try {
          const res = await fetch(`${API_BASE_URL}/api/tasks/${statsTaskId}`);
          if (!res.ok) throw new Error('Task Status Request failed');
          const data = await res.json();
          
          setStatsProgress(data.progress || 'Verarbeite...');
          
          if (data.status === 'completed') {
            setStatsResult(data.result);
            setIsStatsRunning(false);
            setStatsTaskId(null);
          } else if (data.status === 'error') {
             setError(data.progress || 'Ein Fehler ist aufgetreten.');
             setIsStatsRunning(false);
             setStatsTaskId(null);
          }
        } catch (err: any) {
          console.error("Polling Error:", err);
        }
      }, 1000);
    }

    return () => {
      if (interval) clearInterval(interval);
    };
  }, [statsTaskId, isStatsRunning]);

  const handleGeneratePdf = async (job: Job) => {
    setProcessingJobId(job.id);
    setError(null);
    try {
      const response = await fetch(`${API_BASE_URL}/api/jobs/${job.id}/generate-pdf?account_type=${activeTab}`);
      if (!response.ok) {
        const errData = await response.json();
        throw new Error(errData.detail || 'PDF Generierung fehlgeschlagen');
      }
      
      const blob = await response.blob();
      const url = window.URL.createObjectURL(blob);
      const a = document.createElement("a");
      a.href = url;
      a.download = `Listen_${job.name.replace(/\s+/g, "_")}.pdf`;
      document.body.appendChild(a);
      a.click();
      a.remove();
      window.URL.revokeObjectURL(url);
    } catch (err: any) {
      setError(`PDF Fehler (${job.name}): ${err.message}`);
    } finally {
      setProcessingJobId(null);
    }
  };


  const handleGenerateQrCards = async (job: Job, file: File) => {
    if (!file) {
      setError("Bitte wähle eine PDF-Vorlage aus.");
      return;
    }
    
    setIsQrGenerating(true);
    setError(null);

    const formData = new FormData();
    formData.append('pdf_file', file);
    if (selectedEventType) formData.append('event_type_name', selectedEventType);

    try {
      const response = await fetch(`${API_BASE_URL}/api/qr-cards/generate`, {
        method: 'POST',
        body: formData,
      });

      if (!response.ok) {
        if (response.status === 404) {
          throw new Error("Keine passenden Calendly-Termine gefunden.");
        }
        const errData = await response.json();
        throw new Error(errData.detail || 'Generierung fehlgeschlagen');
      }

      const blob = await response.blob();
      const url = window.URL.createObjectURL(blob);
      const a = document.createElement("a");
      a.href = url;
      a.download = `QR_Karten_Andruck_${job.id}.pdf`;
      document.body.appendChild(a);
      a.click();
      a.remove();
      window.URL.revokeObjectURL(url);
    } catch (err: any) {
      setError(err.message);
    } finally {
      setIsQrGenerating(false);
    }
  };

  const handleGenerateAppointmentList = async (job: Job) => {
    setIsListGenerating(true);
    setError(null);
    try {
      const response = await fetch(`${API_BASE_URL}/api/jobs/${job.id}/appointment-list?event_type_name=${encodeURIComponent(selectedEventType)}`);
      
      if (!response.ok) {
        if (response.status === 404) {
          throw new Error("Keine passenden Calendly-Termine gefunden.");
        }
        const errData = await response.json();
        throw new Error(errData.detail || 'PDF Generierung fehlgeschlagen');
      }
      
      const blob = await response.blob();
      const url = window.URL.createObjectURL(blob);
      const a = document.createElement("a");
      a.href = url;
      a.download = `Terminuebersicht_${job.name.replace(/\s+/g, "_")}.pdf`;
      document.body.appendChild(a);
      a.click();
      a.remove();
      window.URL.revokeObjectURL(url);
    } catch (err: any) {
      setError(`Listen-Fehler (${job.name}): ${err.message}`);
    } finally {
      setIsListGenerating(false);
    }
  };
  const currentJobs = jobsCache[activeTab];

  return (
    <div className="min-h-screen bg-gray-50 text-gray-900 font-sans">
      
      {/* Top Navigation Bar */}
      <header className="bg-white shadow-sm sticky top-0 z-10">
        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 h-16 flex items-center justify-between">
          <div className="flex items-center gap-2">
            <span className="text-2xl">📸</span>
            <h1 className="text-xl font-bold text-gray-800 tracking-tight">Fotograf.de ERP</h1>
          </div>
          
          {/* Main Tabs */}
          <nav className="flex space-x-1 bg-gray-100 p-1 rounded-lg">
            <button
              onClick={() => setActiveTab('kiga')}
              className={`px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 ${
                activeTab === 'kiga' ? 'bg-white shadow text-indigo-700' : 'text-gray-500 hover:text-gray-700'
              }`}
            >
              Kindergarten
            </button>
            <button
              onClick={() => setActiveTab('schule')}
              className={`px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 ${
                activeTab === 'schule' ? 'bg-white shadow text-indigo-700' : 'text-gray-500 hover:text-gray-700'
              }`}
            >
              Schule
            </button>
          </nav>

          
        </div>
      </header>

      {/* Main Content Area */}
      <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
        
        {/* Action Bar */}
        <div className="flex flex-col sm:flex-row justify-between items-start sm:items-center mb-8 gap-4">
          <div>
            <h2 className="text-2xl font-bold text-gray-900">
              {activeTab === 'kiga' ? 'Kindergarten Aufträge' : 'Schul Aufträge'}
            </h2>
            <p className="text-sm text-gray-500 mt-1">
              {currentJobs === null ? "Noch nicht geladen." : `${currentJobs.length} aktive Projekte gefunden.`}
            </p>
          </div>
          
          <button
            onClick={handleRefresh}
            disabled={isLoading}
            className="flex items-center gap-2 px-5 py-2.5 bg-indigo-600 text-white text-sm font-medium rounded-lg hover:bg-indigo-700 focus:ring-4 focus:ring-indigo-100 transition-all disabled:opacity-70 disabled:cursor-not-allowed shadow-sm"
          >
            {isLoading ? (
              <>
                <svg className="animate-spin h-4 w-4" viewBox="0 0 24 24" fill="none">
                  <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
                  <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z" />
                </svg>
                Synchronisiere...
              </>
            ) : (
              <>
                <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" /></svg>
                {currentJobs === null ? 'Aufträge abrufen' : 'Liste aktualisieren'}
              </>
            )}
          </button>
        </div>

        {/* Global Errors */}
        {error && !selectedJob && (
          <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded-lg mb-8 flex items-start gap-3">
            <svg className="w-5 h-5 mt-0.5 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20"><path fillRule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clipRule="evenodd" /></svg>
            <div>
              <h3 className="font-semibold text-sm">Systemfehler</h3>
              <p className="text-sm mt-1">{error}</p>
            </div>
          </div>
        )}

        {/* Empty State */}
        {currentJobs !== null && currentJobs.length === 0 && !isLoading && !error && (
          <div className="text-center py-16 bg-white rounded-xl border border-dashed border-gray-300">
            <svg className="mx-auto h-12 w-12 text-gray-300" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true"><path vectorEffect="non-scaling-stroke" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M9 13h6m-3-3v6m-9 1V7a2 2 0 012-2h6l2 2h6a2 2 0 012 2v8a2 2 0 01-2 2H5a2 2 0 01-2-2z" /></svg>
            <h3 className="mt-2 text-sm font-semibold text-gray-900">Keine Projekte</h3>
            <p className="mt-1 text-sm text-gray-500">Es wurden keine aktiven Aufträge für diesen Account gefunden.</p>
          </div>
        )}

        {/* Grid of Job Cards */}
        {currentJobs !== null && currentJobs.length > 0 && (
          <div className="grid grid-cols-1 md:grid-cols-2 xl:grid-cols-3 gap-6">
            {currentJobs.map((job) => (
              <div 
                key={job.id} 
                className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden hover:shadow-md hover:border-indigo-300 transition-all duration-200 cursor-pointer flex flex-col h-full"
                onClick={() => setSelectedJob(job)}
              >
                {/* Card Header (Status Color Band) */}
                <div className={`h-2 w-full ${job.status.toLowerCase().includes('abgeschlossen') ? 'bg-gray-300' : 'bg-indigo-500'}`}></div>
                
                <div className="p-6 flex-1 flex flex-col">
                  <div className="flex justify-between items-start mb-4">
                    <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-800">
                      {job.id ? `ID: ${job.id}` : 'Unbekannte ID'}
                    </span>
                    <span className="text-sm font-medium text-gray-500 bg-gray-50 px-2 py-1 rounded">
                      {job.date || 'Kein Datum'}
                    </span>
                  </div>
                  
                  <h3 className="text-lg font-bold text-gray-900 leading-tight mb-2 line-clamp-2">
                    {job.name}
                  </h3>
                  
                  <div className="mt-auto pt-4 flex flex-col gap-2">
                     <p className="text-sm text-gray-600 flex items-center gap-2">
                      <span className="w-2 h-2 rounded-full bg-emerald-500"></span>
                      {job.status}
                    </p>
                    <p className="text-xs text-gray-400">Typ: {job.shooting_type}</p>
                  </div>
                </div>
                
                {/* Card Footer */}
                <div className="bg-gray-50 px-6 py-3 border-t border-gray-100 flex justify-between items-center">
                  <span className="text-sm font-medium text-indigo-600 group-hover:text-indigo-800">
                    Details verwalten &rarr;
                  </span>
                </div>
              </div>
            ))}
          </div>
        )}
      </main>

      {/* --- Detail Modal Overlay --- */}
      {selectedJob && (
        <div className="fixed inset-0 z-50 overflow-y-auto" aria-labelledby="modal-title" role="dialog" aria-modal="true">
          <div className="flex items-end justify-center min-h-screen pt-4 px-4 pb-20 text-center sm:block sm:p-0">
            
            {/* Background backdrop */}
            <div className="fixed inset-0 bg-gray-900 bg-opacity-75 transition-opacity" aria-hidden="true" onClick={() => setSelectedJob(null)}></div>

            <span className="hidden sm:inline-block sm:align-middle sm:h-screen" aria-hidden="true">&#8203;</span>

            {/* Modal Panel */}
            <div className="inline-block align-bottom bg-gray-50 rounded-2xl text-left overflow-hidden shadow-2xl transform transition-all sm:my-8 sm:align-middle sm:max-w-4xl w-full">
              
              {/* Modal Header */}
              <div className="bg-white px-6 py-6 border-b border-gray-200 flex justify-between items-start">
                <div>
                  <h3 className="text-2xl font-bold text-gray-900" id="modal-title">
                    {selectedJob.name}
                  </h3>
                  <p className="text-sm text-gray-500 mt-1 flex items-center gap-3">
                    <span>📅 {selectedJob.date}</span>
                    <span>•</span>
                    <span className="text-emerald-600 font-medium">{selectedJob.status}</span>
                    <span>•</span>
                    <a href={selectedJob.url} target="_blank" rel="noopener noreferrer" className="text-indigo-600 hover:underline inline-flex items-center gap-1">
                      In Fotograf.de öffnen <svg className="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14" /></svg>
                    </a>
                  </p>
                </div>
                <button 
                  type="button" 
                  className="bg-white rounded-md text-gray-400 hover:text-gray-500 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500"
                  onClick={() => setSelectedJob(null)}
                >
                  <span className="sr-only">Schließen</span>
                  <svg className="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M6 18L18 6M6 6l12 12" />
                  </svg>
                </button>
              </div>

              {/* Modal Body - Tools & Actions Grid */}
              <div className="px-6 py-8">
                
                {error && processingJobId === selectedJob.id && (
                  <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded-lg mb-6 text-sm">
                    {error}
                  </div>
                )}

                <h4 className="text-lg font-bold text-gray-800 mb-4">Verfügbare Tools</h4>
                
                <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
                  
                  {/* Tool 1: PDF List */}
                  <div className="bg-white border border-gray-200 rounded-xl p-5 hover:border-blue-300 transition-colors shadow-sm">
                    <div className="flex items-start justify-between mb-2">
                      <div className="p-2 bg-blue-50 rounded-lg text-blue-600 text-xl">📄</div>
                    </div>
                    <h5 className="font-bold text-gray-900 mb-1">Teilnehmerliste (PDF)</h5>
                    <p className="text-sm text-gray-500 mb-4 line-clamp-2">Lädt die Anmeldungen herunter und formatiert sie als sauberes PDF (Gruppen/Klassen sortiert).</p>
                    <button 
                      onClick={() => handleGeneratePdf(selectedJob)}
                      disabled={processingJobId === selectedJob.id || isStatsRunning}
                      className="w-full flex justify-center items-center gap-2 px-4 py-2 bg-blue-600 text-white text-sm font-medium rounded-lg hover:bg-blue-700 focus:ring-4 focus:ring-blue-100 disabled:opacity-50 transition-colors"
                    >
                      {processingJobId === selectedJob.id ? 'Lädt CSV via Selenium...' : 'PDF generieren & speichern'}
                    </button>
                  </div>

                  
                  {/* Tool 2: Shooting-Planung (QR & List) */}
                  <div className="bg-white border border-gray-200 rounded-xl p-5 hover:border-emerald-300 transition-colors shadow-sm md:col-span-2">
                    <div className="flex items-start justify-between mb-4">
                      <div className="flex items-center gap-3">
                        <div className="p-2 bg-emerald-50 rounded-lg text-emerald-600 text-xl">📆</div>
                        <h5 className="font-bold text-gray-900 text-lg">Shooting-Planung</h5>
                      </div>
                      <span className="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-emerald-100 text-emerald-800">Neu</span>
                    </div>
                    
                    <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
                      {/* Event Selection */}
                      <div className="md:col-span-1 border-r border-gray-100 pr-4">
                        <label className="block text-sm font-bold text-gray-700 mb-2">Calendly Event auswählen</label>
                        <select 
                          value={selectedEventType} 
                          onChange={(e) => setSelectedEventType(e.target.value)}
                          className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-emerald-500 focus:border-emerald-500 text-sm"
                        >
                          {eventTypes.length === 0 && <option value="">Lade Events...</option>}
                          {eventTypes.map(et => (
                            <option key={et.uri} value={et.name}>{et.name}</option>
                          ))}
                        </select>
                        <p className="text-xs text-gray-500 mt-2">Die Termine für diesen Event-Typ werden aus Calendly importiert.</p>
                      </div>

                      {/* Actions */}
                      <div className="md:col-span-2 grid grid-cols-1 sm:grid-cols-2 gap-4">
                        {/* Action 1: QR Cards */}
                        <div className="bg-gray-50 p-4 rounded-lg flex flex-col justify-between">
                          <div>
                            <h6 className="font-bold text-sm text-gray-800 mb-1">📇 QR-Zugangskarten</h6>
                            <p className="text-xs text-gray-600 mb-3">Druckt Namen und Uhrzeit auf vorbereitete PDF-Bögen.</p>
                            <input 
                              type="file" 
                              accept=".pdf"
                              id={`qr-upload-${selectedJob.id}`}
                              className="hidden"
                              onChange={(e) => {
                                if (e.target.files && e.target.files.length > 0) {
                                  handleGenerateQrCards(selectedJob, e.target.files[0]);
                                  e.target.value = ''; // reset
                                }
                              }}
                            />
                          </div>
                          <button 
                            onClick={() => document.getElementById(`qr-upload-${selectedJob.id}`)?.click()}
                            disabled={!selectedEventType || isQrGenerating}
                            className="w-full px-3 py-2 bg-emerald-600 text-white text-xs font-bold rounded-lg hover:bg-emerald-700 disabled:opacity-50 transition-all flex justify-center items-center gap-2 mt-auto"
                          >
                            {isQrGenerating ? 'Generiere...' : 'Blanko PDF hochladen & starten'}
                          </button>
                        </div>

                        {/* Action 2: Appointment List */}
                        <div className="bg-gray-50 p-4 rounded-lg flex flex-col justify-between">
                          <div>
                            <h6 className="font-bold text-sm text-gray-800 mb-1">📄 Termin-Übersicht</h6>
                            <p className="text-xs text-gray-600 mb-3">PDF mit 6-Minuten Taktung und Lücken für den Shooting-Tag.</p>
                          </div>
                          <button 
                            onClick={() => handleGenerateAppointmentList(selectedJob)}
                            disabled={!selectedEventType || isListGenerating}
                            className="w-full px-3 py-2 bg-indigo-600 text-white text-xs font-bold rounded-lg hover:bg-indigo-700 disabled:opacity-50 transition-all flex justify-center items-center gap-2 mt-auto"
                          >
                            {isListGenerating ? 'Generiere...' : 'PDF Liste generieren'}
                          </button>
                        </div>
                      </div>
                    </div>
                  </div>
{/* Tool 3: Follow-up Emails */}
                  <div className="bg-white border border-gray-200 rounded-xl p-5 hover:border-amber-300 transition-colors shadow-sm">
                    <div className="flex items-start justify-between mb-2">
                      <div className="p-2 bg-amber-50 rounded-lg text-amber-600 text-xl">✉️</div>
                      <span className="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-100 text-gray-600">Demnächst</span>
                    </div>
                    <h5 className="font-bold text-gray-900 mb-1">Nachfass-Mails (Supermailer)</h5>
                    <p className="text-sm text-gray-500 mb-4 line-clamp-2">Analysiert das Kaufverhalten und generiert eine fertige CSV-Liste für den Supermailer.</p>
                    <button className="w-full px-4 py-2 bg-gray-100 text-gray-500 text-sm font-medium rounded-lg cursor-not-allowed">
                      Analyse starten (Dauert lange)
                    </button>
                  </div>

                  {/* Tool 4: Statistics */}
                  <div className="bg-white border border-gray-200 rounded-xl p-5 hover:border-purple-300 transition-colors shadow-sm">
                    <div className="flex items-start justify-between mb-2">
                      <div className="p-2 bg-purple-50 rounded-lg text-purple-600 text-xl">📊</div>
                      <span className="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-purple-100 text-purple-700">Aktiv</span>
                    </div>
                    <h5 className="font-bold text-gray-900 mb-1">Verkaufsstatistik</h5>
                    <p className="text-sm text-gray-500 mb-4 line-clamp-2">Durchforstet alle Alben und liefert eine Übersicht: Wie viele Kinder haben wie viel gekauft?</p>
                    
                    {isStatsRunning ? (
                       <div className="w-full bg-gray-100 p-3 rounded-lg text-sm text-gray-700 flex flex-col gap-2">
                         <div className="flex items-center gap-2">
                           <svg className="animate-spin h-4 w-4 text-purple-600" viewBox="0 0 24 24" fill="none"><circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" /><path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z" /></svg>
                           <span className="font-medium text-purple-700">Läuft im Hintergrund...</span>
                         </div>
                         <p className="text-xs break-words">{statsProgress}</p>
                       </div>
                    ) : (
                      <button 
                        onClick={() => handleStartStatistics(selectedJob)}
                        disabled={processingJobId !== null || isStatsRunning}
                        className="w-full px-4 py-2 bg-purple-600 text-white text-sm font-medium rounded-lg hover:bg-purple-700 disabled:opacity-50 transition-colors shadow-sm"
                      >
                        Statistik-Lauf starten
                      </button>
                    )}
                  </div>

                </div>

                {/* Optional Data View Area (for later use, e.g., showing the stats table here) */}
                {statsResult && (
                  <div className="mt-8 border-t border-gray-200 pt-6">
                     <div className="flex justify-between items-center mb-4">
                       <h4 className="text-lg font-bold text-gray-800">Ergebnis der Auswertung</h4>
                       <span className="text-xs bg-emerald-100 text-emerald-800 px-2 py-1 rounded font-medium">Erfolgreich abgeschlossen</span>
                     </div>
                     
                     <div className="overflow-x-auto rounded-lg border border-gray-200">
                       <table className="min-w-full divide-y divide-gray-200 text-sm text-left">
                         <thead className="bg-gray-50 text-gray-500 uppercase">
                           <tr>
                             <th className="px-4 py-3 font-medium">Album</th>
                             <th className="px-4 py-3 font-medium text-center">Kinder (Gesamt)</th>
                             <th className="px-4 py-3 font-medium text-center">Mit Käufen</th>
                             <th className="px-4 py-3 font-medium text-center">Alle Bilder</th>
                           </tr>
                         </thead>
                         <tbody className="bg-white divide-y divide-gray-200">
                           {statsResult.map((row, idx) => (
                             <tr key={idx} className="hover:bg-gray-50">
                               <td className="px-4 py-3 font-medium text-gray-900">{row.Album}</td>
                               <td className="px-4 py-3 text-center text-gray-600">{row.Kinder_insgesamt}</td>
                               <td className="px-4 py-3 text-center text-emerald-600 font-medium">{row.Kinder_mit_Käufen}</td>
                               <td className="px-4 py-3 text-center text-indigo-600 font-medium">{row.Kinder_Alle_Bilder_gekauft}</td>
                             </tr>
                           ))}
                           {/* Total Row */}
                           <tr className="bg-gray-50 font-bold border-t-2 border-gray-300">
                             <td className="px-4 py-3 text-gray-900">Gesamt ({statsResult.length} Alben)</td>
                             <td className="px-4 py-3 text-center text-gray-900">
                                {statsResult.reduce((sum, row) => sum + (row.Kinder_insgesamt || 0), 0)}
                             </td>
                             <td className="px-4 py-3 text-center text-emerald-700">
                                {statsResult.reduce((sum, row) => sum + (row.Kinder_mit_Käufen || 0), 0)}
                             </td>
                             <td className="px-4 py-3 text-center text-indigo-700">
                                {statsResult.reduce((sum, row) => sum + (row.Kinder_Alle_Bilder_gekauft || 0), 0)}
                             </td>
                           </tr>
                         </tbody>
                       </table>
                     </div>
                  </div>
                )}

              </div>
              
              {/* Modal Footer */}
              <div className="bg-gray-100 px-4 py-3 sm:px-6 sm:flex sm:flex-row-reverse border-t border-gray-200">
                <button 
                  type="button" 
                  className="w-full inline-flex justify-center rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-base font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 sm:mt-0 sm:ml-3 sm:w-auto sm:text-sm"
                  onClick={() => {
                    setSelectedJob(null);
                    setStatsResult(null);
                    setStatsTaskId(null);
                  }}
                >
                  Schließen
                </button>
              </div>

            </div>
          </div>
        </div>
      )}

      
    </div>
  );
}

export default App;