'use client'

import React, { useState, useEffect, useCallback } from 'react'

// =============================================================================
// TYPES
// =============================================================================

interface Portfolio {
  id: string
  name: string
  description: string
  status: 'DRAFT' | 'ACTIVE' | 'REVIEW' | 'APPROVED' | 'ARCHIVED'
  department: string
  business_unit: string
  owner: string
  owner_email: string
  total_assessments: number
  total_roadmaps: number
  total_workshops: number
  avg_risk_score: number
  high_risk_count: number
  compliance_score: number
  auto_update_metrics: boolean
  require_approval: boolean
  created_at: string
  updated_at: string
  approved_at: string | null
  approved_by: string | null
}

interface PortfolioItem {
  id: string
  portfolio_id: string
  item_type: 'ASSESSMENT' | 'ROADMAP' | 'WORKSHOP' | 'DOCUMENT'
  item_id: string
  title: string
  status: string
  risk_level: string
  risk_score: number
  feasibility: string
  sort_order: number
  tags: string[]
  notes: string
  created_at: string
}

interface PortfolioStats {
  total_items: number
  items_by_type: Record<string, number>
  risk_distribution: Record<string, number>
  avg_risk_score: number
  compliance_score: number
}

interface ActivityEntry {
  timestamp: string
  action: string
  item_type: string
  item_id: string
  item_title: string
  user_id: string
}

interface CompareResult {
  portfolios: Portfolio[]
  risk_scores: Record<string, number>
  compliance_scores: Record<string, number>
  item_counts: Record<string, number>
  common_items: string[]
  unique_items: Record<string, string[]>
}

// =============================================================================
// API
// =============================================================================

const API_BASE = '/api/sdk/v1/portfolio'

async function api<T>(path: string, options?: RequestInit): Promise<T> {
  const res = await fetch(`${API_BASE}${path}`, {
    headers: { 'Content-Type': 'application/json' },
    ...options,
  })
  if (!res.ok) {
    const err = await res.json().catch(() => ({ error: res.statusText }))
    throw new Error(err.error || err.message || `HTTP ${res.status}`)
  }
  return res.json()
}

// =============================================================================
// COMPONENTS
// =============================================================================

const statusColors: Record<string, string> = {
  DRAFT: 'bg-gray-100 text-gray-700',
  ACTIVE: 'bg-green-100 text-green-700',
  REVIEW: 'bg-yellow-100 text-yellow-700',
  APPROVED: 'bg-purple-100 text-purple-700',
  ARCHIVED: 'bg-red-100 text-red-700',
}

const statusLabels: Record<string, string> = {
  DRAFT: 'Entwurf',
  ACTIVE: 'Aktiv',
  REVIEW: 'In Pruefung',
  APPROVED: 'Genehmigt',
  ARCHIVED: 'Archiviert',
}

function PortfolioCard({ portfolio, onSelect, onDelete }: {
  portfolio: Portfolio
  onSelect: (p: Portfolio) => void
  onDelete: (id: string) => void
}) {
  const totalItems = portfolio.total_assessments + portfolio.total_roadmaps + portfolio.total_workshops

  return (
    <div className="bg-white rounded-xl border-2 border-gray-200 p-6 hover:border-purple-300 transition-colors cursor-pointer"
      onClick={() => onSelect(portfolio)}>
      <div className="flex items-start justify-between mb-3">
        <div className="flex-1 min-w-0">
          <h4 className="font-semibold text-gray-900 truncate">{portfolio.name}</h4>
          {portfolio.department && <span className="text-xs text-gray-500">{portfolio.department}</span>}
        </div>
        <span className={`px-2 py-1 text-xs rounded-full ml-2 ${statusColors[portfolio.status] || 'bg-gray-100 text-gray-700'}`}>
          {statusLabels[portfolio.status] || portfolio.status}
        </span>
      </div>

      {portfolio.description && (
        <p className="text-sm text-gray-600 mb-3 line-clamp-2">{portfolio.description}</p>
      )}

      <div className="grid grid-cols-3 gap-2 mb-4">
        <div className="bg-gray-50 rounded-lg p-2 text-center">
          <div className="text-lg font-bold text-purple-600">{portfolio.compliance_score}%</div>
          <div className="text-xs text-gray-500">Compliance</div>
        </div>
        <div className="bg-gray-50 rounded-lg p-2 text-center">
          <div className="text-lg font-bold text-gray-900">{portfolio.avg_risk_score.toFixed(1)}</div>
          <div className="text-xs text-gray-500">Risiko</div>
        </div>
        <div className="bg-gray-50 rounded-lg p-2 text-center">
          <div className="text-lg font-bold text-gray-900">{totalItems}</div>
          <div className="text-xs text-gray-500">Items</div>
        </div>
      </div>

      {portfolio.high_risk_count > 0 && (
        <div className="flex items-center gap-1 text-xs text-red-600 mb-3">
          <svg className="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L4.082 16.5c-.77.833.192 2.5 1.732 2.5z" />
          </svg>
          {portfolio.high_risk_count} Hoch-Risiko
        </div>
      )}

      <div className="flex justify-between items-center">
        <span className="text-xs text-gray-400">{portfolio.owner || 'Kein Owner'}</span>
        <button onClick={(e) => { e.stopPropagation(); onDelete(portfolio.id) }}
          className="text-xs text-red-500 hover:text-red-700 hover:bg-red-50 px-2 py-1 rounded">
          Loeschen
        </button>
      </div>
    </div>
  )
}

function CreatePortfolioModal({ onClose, onCreated }: {
  onClose: () => void
  onCreated: () => void
}) {
  const [name, setName] = useState('')
  const [description, setDescription] = useState('')
  const [department, setDepartment] = useState('')
  const [owner, setOwner] = useState('')
  const [saving, setSaving] = useState(false)

  const handleCreate = async () => {
    if (!name.trim()) return
    setSaving(true)
    try {
      await api('', {
        method: 'POST',
        body: JSON.stringify({
          name: name.trim(),
          description: description.trim(),
          department: department.trim(),
          owner: owner.trim(),
        }),
      })
      onCreated()
    } catch (err) {
      console.error('Create portfolio error:', err)
    } finally {
      setSaving(false)
    }
  }

  return (
    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50" onClick={onClose}>
      <div className="bg-white rounded-2xl p-6 w-full max-w-lg" onClick={e => e.stopPropagation()}>
        <h3 className="text-lg font-bold text-gray-900 mb-4">Neues Portfolio</h3>
        <div className="space-y-4">
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Name *</label>
            <input type="text" value={name} onChange={e => setName(e.target.value)}
              className="w-full px-3 py-2 border rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
              placeholder="z.B. KI-Portfolio Q1 2026" />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Beschreibung</label>
            <textarea value={description} onChange={e => setDescription(e.target.value)}
              className="w-full px-3 py-2 border rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
              rows={3} />
          </div>
          <div className="grid grid-cols-2 gap-4">
            <div>
              <label className="block text-sm font-medium text-gray-700 mb-1">Abteilung</label>
              <input type="text" value={department} onChange={e => setDepartment(e.target.value)}
                className="w-full px-3 py-2 border rounded-lg focus:ring-2 focus:ring-purple-500" />
            </div>
            <div>
              <label className="block text-sm font-medium text-gray-700 mb-1">Verantwortlicher</label>
              <input type="text" value={owner} onChange={e => setOwner(e.target.value)}
                className="w-full px-3 py-2 border rounded-lg focus:ring-2 focus:ring-purple-500" />
            </div>
          </div>
        </div>
        <div className="flex justify-end gap-3 mt-6">
          <button onClick={onClose} className="px-4 py-2 text-sm text-gray-600 hover:bg-gray-100 rounded-lg">Abbrechen</button>
          <button onClick={handleCreate} disabled={!name.trim() || saving}
            className="px-4 py-2 text-sm bg-purple-600 text-white rounded-lg hover:bg-purple-700 disabled:opacity-50">
            {saving ? 'Erstelle...' : 'Erstellen'}
          </button>
        </div>
      </div>
    </div>
  )
}

function PortfolioDetailView({ portfolio, onBack, onRefresh }: {
  portfolio: Portfolio
  onBack: () => void
  onRefresh: () => void
}) {
  const [items, setItems] = useState<PortfolioItem[]>([])
  const [activity, setActivity] = useState<ActivityEntry[]>([])
  const [stats, setStats] = useState<PortfolioStats | null>(null)
  const [activeTab, setActiveTab] = useState<'items' | 'activity' | 'compare'>('items')
  const [loading, setLoading] = useState(true)
  const [compareIds, setCompareIds] = useState('')
  const [compareResult, setCompareResult] = useState<CompareResult | null>(null)

  const loadDetails = useCallback(async () => {
    setLoading(true)
    try {
      const [i, a, s] = await Promise.all([
        api<PortfolioItem[]>(`/${portfolio.id}/items`).catch(() => []),
        api<ActivityEntry[]>(`/${portfolio.id}/activity`).catch(() => []),
        api<PortfolioStats>(`/${portfolio.id}/stats`).catch(() => null),
      ])
      setItems(Array.isArray(i) ? i : [])
      setActivity(Array.isArray(a) ? a : [])
      setStats(s)
    } finally {
      setLoading(false)
    }
  }, [portfolio.id])

  useEffect(() => { loadDetails() }, [loadDetails])

  const handleSubmitReview = async () => {
    try {
      await api(`/${portfolio.id}/submit-review`, { method: 'POST' })
      onRefresh()
    } catch (err) {
      console.error('Submit review error:', err)
    }
  }

  const handleApprove = async () => {
    try {
      await api(`/${portfolio.id}/approve`, { method: 'POST' })
      onRefresh()
    } catch (err) {
      console.error('Approve error:', err)
    }
  }

  const handleRecalculate = async () => {
    try {
      await api(`/${portfolio.id}/recalculate`, { method: 'POST' })
      loadDetails()
      onRefresh()
    } catch (err) {
      console.error('Recalculate error:', err)
    }
  }

  const handleCompare = async () => {
    const ids = compareIds.split(',').map(s => s.trim()).filter(Boolean)
    if (ids.length < 1) return
    try {
      const result = await api<CompareResult>('/compare', {
        method: 'POST',
        body: JSON.stringify({ portfolio_ids: [portfolio.id, ...ids] }),
      })
      setCompareResult(result)
    } catch (err) {
      console.error('Compare error:', err)
    }
  }

  const handleRemoveItem = async (itemId: string) => {
    try {
      await api(`/${portfolio.id}/items/${itemId}`, { method: 'DELETE' })
      setItems(prev => prev.filter(i => i.id !== itemId))
    } catch (err) {
      console.error('Remove item error:', err)
    }
  }

  const typeLabels: Record<string, string> = {
    ASSESSMENT: 'Assessment', ROADMAP: 'Roadmap', WORKSHOP: 'Workshop', DOCUMENT: 'Dokument',
  }
  const typeColors: Record<string, string> = {
    ASSESSMENT: 'bg-blue-100 text-blue-700', ROADMAP: 'bg-green-100 text-green-700',
    WORKSHOP: 'bg-purple-100 text-purple-700', DOCUMENT: 'bg-orange-100 text-orange-700',
  }

  return (
    <div>
      <button onClick={onBack} className="flex items-center gap-2 text-sm text-gray-600 hover:text-gray-900 mb-4">
        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
        </svg>
        Zurueck zur Uebersicht
      </button>

      <div className="bg-white rounded-xl border-2 border-gray-200 p-6 mb-6">
        <div className="flex items-start justify-between mb-4">
          <div>
            <h2 className="text-xl font-bold text-gray-900">{portfolio.name}</h2>
            <p className="text-sm text-gray-500 mt-1">{portfolio.description}</p>
          </div>
          <span className={`px-3 py-1 text-sm rounded-full ${statusColors[portfolio.status]}`}>
            {statusLabels[portfolio.status]}
          </span>
        </div>

        {stats && (
          <div className="grid grid-cols-4 gap-4 mb-4">
            <div className="bg-gray-50 rounded-lg p-3 text-center">
              <div className="text-2xl font-bold text-purple-600">{stats.compliance_score}%</div>
              <div className="text-xs text-gray-500">Compliance</div>
            </div>
            <div className="bg-gray-50 rounded-lg p-3 text-center">
              <div className="text-2xl font-bold text-gray-900">{stats.avg_risk_score.toFixed(1)}</div>
              <div className="text-xs text-gray-500">Risiko-Score</div>
            </div>
            <div className="bg-gray-50 rounded-lg p-3 text-center">
              <div className="text-2xl font-bold text-gray-900">{stats.total_items}</div>
              <div className="text-xs text-gray-500">Items</div>
            </div>
            <div className="bg-gray-50 rounded-lg p-3 text-center">
              <div className="text-2xl font-bold text-red-600">{portfolio.high_risk_count}</div>
              <div className="text-xs text-gray-500">Hoch-Risiko</div>
            </div>
          </div>
        )}

        <div className="flex gap-2">
          {portfolio.status === 'ACTIVE' && (
            <button onClick={handleSubmitReview} className="px-3 py-1.5 text-sm bg-yellow-600 text-white rounded-lg hover:bg-yellow-700">
              Zur Pruefung einreichen
            </button>
          )}
          {portfolio.status === 'REVIEW' && (
            <button onClick={handleApprove} className="px-3 py-1.5 text-sm bg-green-600 text-white rounded-lg hover:bg-green-700">
              Genehmigen
            </button>
          )}
          <button onClick={handleRecalculate} className="px-3 py-1.5 text-sm border border-gray-300 text-gray-700 rounded-lg hover:bg-gray-50">
            Metriken neu berechnen
          </button>
        </div>
      </div>

      {/* Tabs */}
      <div className="flex gap-1 mb-4 bg-gray-100 p-1 rounded-lg">
        {(['items', 'activity', 'compare'] as const).map(tab => (
          <button key={tab} onClick={() => setActiveTab(tab)}
            className={`flex-1 px-4 py-2 text-sm rounded-md transition-colors ${activeTab === tab ? 'bg-white text-gray-900 shadow-sm' : 'text-gray-600 hover:text-gray-900'}`}>
            {tab === 'items' ? `Items (${items.length})` : tab === 'activity' ? 'Aktivitaet' : 'Vergleich'}
          </button>
        ))}
      </div>

      {loading ? (
        <div className="text-center py-8 text-gray-500">Laden...</div>
      ) : (
        <>
          {activeTab === 'items' && (
            <div className="bg-white rounded-xl border border-gray-200 overflow-hidden">
              <table className="w-full">
                <thead className="bg-gray-50">
                  <tr>
                    <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Titel</th>
                    <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Typ</th>
                    <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Status</th>
                    <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Risiko</th>
                    <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Aktion</th>
                  </tr>
                </thead>
                <tbody className="divide-y divide-gray-200">
                  {items.map(item => (
                    <tr key={item.id} className="hover:bg-gray-50">
                      <td className="px-4 py-3">
                        <div className="font-medium text-gray-900">{item.title}</div>
                        {item.notes && <div className="text-xs text-gray-500 truncate max-w-xs">{item.notes}</div>}
                      </td>
                      <td className="px-4 py-3">
                        <span className={`px-2 py-0.5 text-xs rounded-full ${typeColors[item.item_type] || 'bg-gray-100 text-gray-700'}`}>
                          {typeLabels[item.item_type] || item.item_type}
                        </span>
                      </td>
                      <td className="px-4 py-3 text-sm text-gray-600">{item.status}</td>
                      <td className="px-4 py-3">
                        <span className={`text-sm font-medium ${
                          item.risk_score >= 7 ? 'text-red-600' : item.risk_score >= 4 ? 'text-yellow-600' : 'text-green-600'
                        }`}>{item.risk_score.toFixed(1)}</span>
                      </td>
                      <td className="px-4 py-3">
                        <button onClick={() => handleRemoveItem(item.id)}
                          className="text-xs text-red-500 hover:text-red-700">Entfernen</button>
                      </td>
                    </tr>
                  ))}
                  {items.length === 0 && (
                    <tr><td colSpan={5} className="px-4 py-8 text-center text-gray-500">Keine Items</td></tr>
                  )}
                </tbody>
              </table>
            </div>
          )}

          {activeTab === 'activity' && (
            <div className="space-y-3">
              {activity.map((a, i) => (
                <div key={i} className="bg-white rounded-lg border border-gray-200 p-4 flex items-center gap-4">
                  <div className={`w-8 h-8 rounded-full flex items-center justify-center text-white text-xs ${
                    a.action === 'added' ? 'bg-green-500' : a.action === 'removed' ? 'bg-red-500' : 'bg-blue-500'
                  }`}>
                    {a.action === 'added' ? '+' : a.action === 'removed' ? '-' : '~'}
                  </div>
                  <div className="flex-1">
                    <div className="text-sm text-gray-900">
                      <span className="font-medium">{a.item_title || a.item_id}</span> {a.action}
                    </div>
                    <div className="text-xs text-gray-500">{a.item_type}</div>
                  </div>
                  <div className="text-xs text-gray-400">{new Date(a.timestamp).toLocaleString('de-DE')}</div>
                </div>
              ))}
              {activity.length === 0 && (
                <div className="text-center py-8 text-gray-500">Keine Aktivitaet</div>
              )}
            </div>
          )}

          {activeTab === 'compare' && (
            <div className="bg-white rounded-xl border border-gray-200 p-6">
              <h3 className="text-lg font-semibold text-gray-900 mb-4">Portfolio-Vergleich</h3>
              <div className="flex gap-3 mb-4">
                <input
                  type="text" value={compareIds} onChange={e => setCompareIds(e.target.value)}
                  className="flex-1 px-3 py-2 border rounded-lg focus:ring-2 focus:ring-purple-500"
                  placeholder="Portfolio-IDs (kommagetrennt)"
                />
                <button onClick={handleCompare}
                  className="px-4 py-2 bg-purple-600 text-white text-sm rounded-lg hover:bg-purple-700">
                  Vergleichen
                </button>
              </div>
              {compareResult && (
                <div className="overflow-x-auto">
                  <table className="w-full">
                    <thead className="bg-gray-50">
                      <tr>
                        <th className="px-4 py-3 text-left text-xs font-medium text-gray-500">Portfolio</th>
                        <th className="px-4 py-3 text-center text-xs font-medium text-gray-500">Risiko-Score</th>
                        <th className="px-4 py-3 text-center text-xs font-medium text-gray-500">Compliance</th>
                        <th className="px-4 py-3 text-center text-xs font-medium text-gray-500">Items</th>
                      </tr>
                    </thead>
                    <tbody className="divide-y divide-gray-200">
                      {compareResult.portfolios?.map(p => (
                        <tr key={p.id}>
                          <td className="px-4 py-3 font-medium text-gray-900">{p.name}</td>
                          <td className="px-4 py-3 text-center">{compareResult.risk_scores?.[p.id]?.toFixed(1) ?? '-'}</td>
                          <td className="px-4 py-3 text-center">{compareResult.compliance_scores?.[p.id] ?? '-'}%</td>
                          <td className="px-4 py-3 text-center">{compareResult.item_counts?.[p.id] ?? '-'}</td>
                        </tr>
                      ))}
                    </tbody>
                  </table>
                  {compareResult.common_items?.length > 0 && (
                    <div className="mt-4 p-3 bg-gray-50 rounded-lg">
                      <div className="text-xs font-medium text-gray-500 mb-1">Gemeinsame Items: {compareResult.common_items.length}</div>
                    </div>
                  )}
                </div>
              )}
            </div>
          )}
        </>
      )}
    </div>
  )
}

// =============================================================================
// MAIN PAGE
// =============================================================================

export default function PortfolioPage() {
  const [portfolios, setPortfolios] = useState<Portfolio[]>([])
  const [loading, setLoading] = useState(true)
  const [showCreate, setShowCreate] = useState(false)
  const [selectedPortfolio, setSelectedPortfolio] = useState<Portfolio | null>(null)
  const [filter, setFilter] = useState<string>('all')

  const loadPortfolios = useCallback(async () => {
    setLoading(true)
    try {
      const data = await api<Portfolio[] | { portfolios: Portfolio[] }>('')
      const list = Array.isArray(data) ? data : (data.portfolios || [])
      setPortfolios(list)
    } catch (err) {
      console.error('Load portfolios error:', err)
    } finally {
      setLoading(false)
    }
  }, [])

  useEffect(() => { loadPortfolios() }, [loadPortfolios])

  const handleDelete = async (id: string) => {
    if (!confirm('Portfolio wirklich loeschen?')) return
    try {
      await api(`/${id}`, { method: 'DELETE' })
      setPortfolios(prev => prev.filter(p => p.id !== id))
    } catch (err) {
      console.error('Delete error:', err)
    }
  }

  const filteredPortfolios = filter === 'all'
    ? portfolios
    : portfolios.filter(p => p.status === filter)

  if (selectedPortfolio) {
    return (
      <div className="p-6 max-w-6xl mx-auto">
        <PortfolioDetailView
          portfolio={selectedPortfolio}
          onBack={() => { setSelectedPortfolio(null); loadPortfolios() }}
          onRefresh={() => {
            loadPortfolios().then(() => {
              const updated = portfolios.find(p => p.id === selectedPortfolio.id)
              if (updated) setSelectedPortfolio(updated)
            })
          }}
        />
      </div>
    )
  }

  return (
    <div className="p-6 max-w-6xl mx-auto">
      <div className="flex items-center justify-between mb-6">
        <div>
          <h1 className="text-2xl font-bold text-gray-900">KI-Portfolios</h1>
          <p className="text-sm text-gray-500 mt-1">
            Verwaltung und Vergleich von Compliance-Portfolios
          </p>
        </div>
        <button onClick={() => setShowCreate(true)}
          className="px-4 py-2 bg-purple-600 text-white text-sm rounded-lg hover:bg-purple-700 flex items-center gap-2">
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 4v16m8-8H4" />
          </svg>
          Neues Portfolio
        </button>
      </div>

      {/* Stats */}
      <div className="grid grid-cols-4 gap-4 mb-6">
        {[
          { label: 'Gesamt', value: portfolios.length, color: 'text-gray-900' },
          { label: 'Aktiv', value: portfolios.filter(p => p.status === 'ACTIVE').length, color: 'text-green-600' },
          { label: 'In Pruefung', value: portfolios.filter(p => p.status === 'REVIEW').length, color: 'text-yellow-600' },
          { label: 'Genehmigt', value: portfolios.filter(p => p.status === 'APPROVED').length, color: 'text-purple-600' },
        ].map(stat => (
          <div key={stat.label} className="bg-white rounded-xl border border-gray-200 p-4 text-center">
            <div className={`text-2xl font-bold ${stat.color}`}>{stat.value}</div>
            <div className="text-xs text-gray-500">{stat.label}</div>
          </div>
        ))}
      </div>

      {/* Filter */}
      <div className="flex gap-2 mb-6">
        {['all', 'DRAFT', 'ACTIVE', 'REVIEW', 'APPROVED'].map(f => (
          <button key={f} onClick={() => setFilter(f)}
            className={`px-3 py-1.5 text-sm rounded-lg ${filter === f ? 'bg-purple-600 text-white' : 'bg-gray-100 text-gray-600 hover:bg-gray-200'}`}>
            {f === 'all' ? 'Alle' : statusLabels[f] || f}
          </button>
        ))}
      </div>

      {loading ? (
        <div className="text-center py-12 text-gray-500">Portfolios werden geladen...</div>
      ) : filteredPortfolios.length === 0 ? (
        <div className="text-center py-12">
          <div className="text-gray-400 mb-2">
            <svg className="w-12 h-12 mx-auto" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
            </svg>
          </div>
          <p className="text-gray-500">Keine Portfolios gefunden</p>
          <button onClick={() => setShowCreate(true)} className="mt-3 text-sm text-purple-600 hover:text-purple-700">
            Erstes Portfolio erstellen
          </button>
        </div>
      ) : (
        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
          {filteredPortfolios.map(p => (
            <PortfolioCard key={p.id} portfolio={p} onSelect={setSelectedPortfolio} onDelete={handleDelete} />
          ))}
        </div>
      )}

      {showCreate && (
        <CreatePortfolioModal onClose={() => setShowCreate(false)} onCreated={() => { setShowCreate(false); loadPortfolios() }} />
      )}
    </div>
  )
}