import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import '../../../core/theme/app_theme.dart';
import '../../../core/widgets/glass_container.dart';
import '../../../core/widgets/status_badge.dart';
import '../../favorites/cubit/favorites_cubit.dart';
import '../../favorites/models/favorite_asset_model.dart';
import '../models/trade_model.dart';
import 'trade_calculation_card.dart';
import 'trade_detail_modal.dart';

class TradeCard extends StatelessWidget {
  final TradeModel trade;
  final VoidCallback? onAccept;
  final VoidCallback? onClose;
  final VoidCallback? onSettings;

  const TradeCard({
    super.key,
    required this.trade,
    this.onAccept,
    this.onClose,
    this.onSettings,
  });

  @override
  Widget build(BuildContext context) {
    final isBuy = trade.signalType == 'BUY' || trade.signalType == 'LONG';
    final signalColor = isBuy ? AppTheme.primaryEmerald : AppTheme.accentRed;
    final isProposed = trade.isProposed;
    final isActive = trade.isActive;
    final isClosed = trade.isClosed;

    return BlocBuilder<FavoritesCubit, FavoritesState>(
      builder: (context, favState) {
        double livePrice = 0.0;
        final keyUpper = (trade.isin.isNotEmpty ? trade.isin : trade.symbol).toUpperCase();
        final match = favState.favoriteDetails.firstWhere(
          (f) => f.isin.toUpperCase() == keyUpper || f.symbol.toUpperCase() == keyUpper,
          orElse: () => const FavoriteAssetModel(isin: '', symbol: '', name: '', currentPrice: 0.0, change24h: 0.0),
        );
        if (match.currentPrice > 0) {
          livePrice = match.currentPrice;
        }

        final pnlAbs = livePrice > 0 ? trade.calculateLivePnlAbs(livePrice) : trade.calculatedPnlAbs;
        final pnlPct = livePrice > 0 ? trade.calculateLivePnlPct(livePrice) : trade.calculatedPnlPct;
        final isPnlPos = pnlAbs >= 0;
        final pnlColor = isPnlPos ? AppTheme.primaryEmerald : AppTheme.accentRed;
        final currPrice = livePrice > 0 ? livePrice : trade.effectiveCurrentPrice;

        return GlassContainer(
          margin: const EdgeInsets.only(bottom: 14),
          padding: const EdgeInsets.all(16),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // Header Row: Signal, Symbol, Drift-Radar & Live PnL
              Row(
                children: [
                  Container(
                    padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
                    decoration: BoxDecoration(
                      color: signalColor.withValues(alpha: 0.15),
                      borderRadius: BorderRadius.circular(8),
                      border: Border.all(color: signalColor.withValues(alpha: 0.4)),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Icon(isBuy ? Icons.trending_up : Icons.trending_down, size: 14, color: signalColor),
                        const SizedBox(width: 4),
                        Text(trade.signalType, style: TextStyle(color: signalColor, fontWeight: FontWeight.bold, fontSize: 12)),
                      ],
                    ),
                  ),
                  const SizedBox(width: 10),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Row(
                          children: [
                            Flexible(
                              child: Text(
                                trade.companyName.isNotEmpty && trade.companyName != 'UNKNOWN'
                                    ? trade.companyName
                                    : (trade.symbol.isNotEmpty && trade.symbol != 'UNKNOWN' ? trade.symbol : (trade.isin.isNotEmpty ? trade.isin : 'Position')),
                                style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16, color: Colors.white),
                                overflow: TextOverflow.ellipsis,
                              ),
                            ),
                            if (trade.instrumentType.isNotEmpty) ...[
                              const SizedBox(width: 6),
                              Container(
                                padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
                                decoration: BoxDecoration(
                                  color: Colors.white10,
                                  borderRadius: BorderRadius.circular(4),
                                ),
                                child: Text(trade.instrumentType, style: TextStyle(color: AppTheme.textSecondary, fontSize: 10, fontWeight: FontWeight.bold)),
                              ),
                            ],
                          ],
                        ),
                        const SizedBox(height: 2),
                        Text(
                          '${trade.symbol.isNotEmpty ? trade.symbol : ""} ${trade.isin.isNotEmpty ? "• " + trade.isin : ""}',
                          style: TextStyle(color: AppTheme.textMuted, fontSize: 11),
                        ),
                      ],
                    ),
                  ),

                  // Status / PnL / Drift-Radar Badge
                  if (isActive || isClosed) ...[
                    Container(
                      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
                      decoration: BoxDecoration(
                        color: pnlColor.withValues(alpha: 0.12),
                        borderRadius: BorderRadius.circular(10),
                        border: Border.all(color: pnlColor.withValues(alpha: 0.3)),
                      ),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.end,
                        children: [
                          Text(
                            '${isPnlPos ? '+' : ''}€${pnlAbs.abs().toStringAsFixed(2)}',
                            style: TextStyle(color: pnlColor, fontWeight: FontWeight.w900, fontSize: 14),
                          ),
                          Text(
                            '${isPnlPos ? '+' : ''}${pnlPct.toStringAsFixed(2)}%',
                            style: TextStyle(color: pnlColor, fontSize: 11, fontWeight: FontWeight.bold),
                          ),
                        ],
                      ),
                    ),
                  ] else if (trade.isRejected) ...[
                    StatusBadge(label: 'ABGELEHNT', color: AppTheme.accentRed),
                  ] else ...[
                    StatusBadge(label: 'VORSCHLAG', color: Colors.amber),
                  ],
                ],
              ),

              // Active Drift Radar / Trailing Alert Indicator
              if (isActive) ...[
                const SizedBox(height: 10),
                _buildDriftRadarBar(trade),
              ],

              // PENDING EXIT ALERT BANNER (Zero Auto-Close notification)
              if (isActive && trade.hasPendingExitAlert) ...[
                const SizedBox(height: 10),
                Container(
                  padding: const EdgeInsets.all(12),
                  decoration: BoxDecoration(
                    color: AppTheme.accentRed.withValues(alpha: 0.15),
                    borderRadius: BorderRadius.circular(10),
                    border: Border.all(color: AppTheme.accentRed.withValues(alpha: 0.5)),
                  ),
                  child: Row(
                    children: [
                      Icon(Icons.warning_amber_rounded, color: AppTheme.accentRed, size: 20),
                      const SizedBox(width: 10),
                      Expanded(
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Text(
                              'KI-Guardian Ratschlag: Position schließen!',
                              style: TextStyle(color: AppTheme.accentRed, fontWeight: FontWeight.bold, fontSize: 12),
                            ),
                            if (trade.pendingExitReason.isNotEmpty)
                              Text(
                                trade.pendingExitReason,
                                style: const TextStyle(color: Colors.white70, fontSize: 11),
                                maxLines: 2,
                                overflow: TextOverflow.ellipsis,
                              ),
                          ],
                        ),
                      ),
                      if (onClose != null)
                        ElevatedButton(
                          onPressed: onClose,
                          style: ElevatedButton.styleFrom(
                            backgroundColor: AppTheme.accentRed,
                            foregroundColor: Colors.white,
                            padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
                            minimumSize: Size.zero,
                            tapTargetSize: MaterialTapTargetSize.shrinkWrap,
                          ),
                          child: const Text('Schließen', style: TextStyle(fontSize: 11, fontWeight: FontWeight.bold)),
                        ),
                    ],
                  ),
                ),
              ],

              const SizedBox(height: 12),

              // Price Metrics Grid with Live Kurs & Trailing SL
              Container(
                padding: const EdgeInsets.all(12),
                decoration: BoxDecoration(
                  color: Colors.black.withValues(alpha: 0.25),
                  borderRadius: BorderRadius.circular(10),
                  border: Border.all(color: Colors.white.withValues(alpha: 0.06)),
                ),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceAround,
                  children: [
                    _priceItem(
                      isActive || isClosed ? 'Einstieg' : 'Ziel-Einstieg',
                      trade.actualEntryPrice > 0
                          ? '€${trade.actualEntryPrice.toStringAsFixed(2)}'
                          : (trade.entryPrice > 0 ? '€${trade.entryPrice.toStringAsFixed(2)}' : '-'),
                      Colors.white,
                    ),
                    _priceItem('Live-Kurs', '€${currPrice.toStringAsFixed(2)}', AppTheme.accentCyan),
                    _priceItem(
                      trade.driftStatus == DriftStatus.trailingActive ? 'Stop (Trailing)' : 'Stop-Loss',
                      '€${trade.stopLoss.toStringAsFixed(2)}',
                      AppTheme.accentRed,
                    ),
                    _priceItem(
                      trade.takeProfitTargets.length > 1 ? 'TP (Aktuell)' : 'Take-Profit',
                      '€${trade.takeProfit.toStringAsFixed(2)}',
                      AppTheme.primaryEmerald,
                    ),
                  ],
                ),
              ),

              if (trade.takeProfitTargets.length > 1) ...[
                const SizedBox(height: 8),
                Row(
                  children: [
                    Text(
                      'Ziele: ',
                      style: TextStyle(color: AppTheme.textMuted, fontSize: 11, fontWeight: FontWeight.bold),
                    ),
                    Expanded(
                      child: Wrap(
                        spacing: 6,
                        runSpacing: 4,
                        children: trade.takeProfitTargets.asMap().entries.map((entry) {
                          final idx = entry.key;
                          final tpVal = entry.value;
                          final isCurrent = (trade.takeProfit - tpVal).abs() < 0.01;

                          return Container(
                            padding: const EdgeInsets.symmetric(horizontal: 7, vertical: 2),
                            decoration: BoxDecoration(
                              color: isCurrent
                                  ? AppTheme.primaryEmerald.withValues(alpha: 0.2)
                                  : Colors.white.withValues(alpha: 0.05),
                              borderRadius: BorderRadius.circular(6),
                              border: Border.all(
                                color: isCurrent
                                    ? AppTheme.primaryEmerald
                                    : Colors.white.withValues(alpha: 0.15),
                              ),
                            ),
                            child: Text(
                              'TP${idx + 1}: €${tpVal.toStringAsFixed(2)}',
                              style: TextStyle(
                                color: isCurrent ? AppTheme.primaryEmerald : Colors.white70,
                                fontSize: 10.5,
                                fontWeight: isCurrent ? FontWeight.w900 : FontWeight.bold,
                              ),
                            ),
                          );
                        }).toList(),
                      ),
                    ),
                  ],
                ),
              ],

              if (trade.reasoning.isNotEmpty) ...[
                const SizedBox(height: 10),
                Text(
                  trade.reasoning,
                  style: TextStyle(color: AppTheme.textMuted, fontSize: 12),
                  maxLines: 2,
                  overflow: TextOverflow.ellipsis,
                ),
              ],

              // KI-Timeline Expansion if updates exist
              if (trade.hourlyUpdates.isNotEmpty) ...[
                const SizedBox(height: 8),
                ExpansionTile(
                  tilePadding: EdgeInsets.zero,
                  childrenPadding: const EdgeInsets.only(bottom: 6),
                  dense: true,
                  leading: Icon(Icons.history_toggle_off, color: AppTheme.accentCyan, size: 18),
                  title: Text(
                    'KI-Guardian Verlauf (${trade.hourlyUpdates.length} Prüfungen)',
                    style: TextStyle(color: AppTheme.accentCyan, fontSize: 12, fontWeight: FontWeight.bold),
                  ),
                  children: trade.hourlyUpdates.reversed.take(4).map((u) {
                    return Container(
                      margin: const EdgeInsets.only(bottom: 6),
                      padding: const EdgeInsets.all(8),
                      decoration: BoxDecoration(
                        color: Colors.white.withValues(alpha: 0.03),
                        borderRadius: BorderRadius.circular(6),
                      ),
                      child: Row(
                        children: [
                          Text(
                            '${u.timestamp.hour.toString().padLeft(2, '0')}:${u.timestamp.minute.toString().padLeft(2, '0')}',
                            style: TextStyle(color: AppTheme.textMuted, fontSize: 11, fontWeight: FontWeight.bold),
                          ),
                          const SizedBox(width: 8),
                          Container(
                            padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
                            decoration: BoxDecoration(
                              color: (u.recommendation.toLowerCase().contains('close')
                                      ? AppTheme.accentRed
                                      : (u.recommendation.toLowerCase().contains('adjust') ? Colors.blue : AppTheme.primaryEmerald))
                                  .withValues(alpha: 0.15),
                              borderRadius: BorderRadius.circular(4),
                            ),
                            child: Text(u.recommendation, style: const TextStyle(color: Colors.white70, fontSize: 10, fontWeight: FontWeight.bold)),
                          ),
                          const SizedBox(width: 8),
                          Expanded(
                            child: Text(
                              u.reasoning.isNotEmpty ? u.reasoning : 'Kurs: €${u.currentPrice.toStringAsFixed(2)} | VIX: ${u.vixValue.toStringAsFixed(1)}',
                              style: TextStyle(color: AppTheme.textMuted, fontSize: 11),
                              maxLines: 1,
                              overflow: TextOverflow.ellipsis,
                            ),
                          ),
                        ],
                      ),
                    );
                  }).toList(),
                ),
              ],

              const SizedBox(height: 8),

              // Collapsible Live-Kalkulation & TP-Multi-Target Card
              TradeCalculationCard(trade: trade, isCollapsible: true, initiallyExpanded: false),

              const SizedBox(height: 12),

              // Footer Action Row
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    '${trade.timeframe.isNotEmpty ? trade.timeframe : "1D"}${trade.leverageUsed > 1 ? " • ${trade.leverageUsed.toStringAsFixed(1)}x Hebel" : ""}',
                    style: TextStyle(color: AppTheme.textMuted, fontSize: 11),
                  ),

                  Row(
                    children: [
                      IconButton(
                        onPressed: () => TradeDetailModal.show(
                          context,
                          trade: trade,
                          onAccept: onAccept,
                          onClose: onClose,
                        ),
                        icon: Icon(Icons.info_outline, size: 18, color: AppTheme.accentCyan),
                        tooltip: 'KI-Begründung & Details',
                      ),
                      if (isProposed && onAccept != null) ...[
                        const SizedBox(width: 6),
                        ElevatedButton.icon(
                          onPressed: onAccept,
                          icon: const Icon(Icons.check_circle_outline, size: 16),
                          label: const Text('Trade Übernehmen'),
                          style: ElevatedButton.styleFrom(
                            backgroundColor: AppTheme.primaryEmerald,
                            foregroundColor: Colors.black,
                            padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
                            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
                          ),
                        ),
                      ],
                      if (isActive && onClose != null) ...[
                        const SizedBox(width: 6),
                        OutlinedButton.icon(
                          onPressed: onClose,
                          icon: Icon(Icons.flag_outlined, size: 14, color: AppTheme.accentRed),
                          label: Text('Position Schließen', style: TextStyle(color: AppTheme.accentRed, fontSize: 12, fontWeight: FontWeight.bold)),
                          style: OutlinedButton.styleFrom(
                            side: BorderSide(color: AppTheme.accentRed.withValues(alpha: 0.5)),
                            padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
                            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
                          ),
                        ),
                      ],
                      if (isActive && onSettings != null) ...[
                        const SizedBox(width: 6),
                        IconButton(
                          onPressed: onSettings,
                          icon: const Icon(Icons.settings, size: 16, color: Colors.white),
                          tooltip: 'Einstellungen anpassen',
                          style: IconButton.styleFrom(
                            backgroundColor: AppTheme.glassSurface,
                          ),
                        ),
                      ],
                    ],
                  ),
                ],
              ),
            ],
          ),
        );
      },
    );
  }

  Widget _buildDriftRadarBar(TradeModel t) {
    Color col;
    String label;
    IconData icon;

    switch (t.driftStatus) {
      case DriftStatus.exitAlert:
        col = AppTheme.accentRed;
        label = 'Drift-Radar: Ausstieg empfohlen';
        icon = Icons.warning_rounded;
        break;
      case DriftStatus.trailingActive:
        col = AppTheme.accentCyan;
        label = 'Drift-Radar: Trailing-Stop aktiv nachgezogen';
        icon = Icons.security;
        break;
      case DriftStatus.driftWarning:
        col = Colors.orangeAccent;
        label = 'Drift-Radar: Leichte Abweichung von Prognose';
        icon = Icons.tune;
        break;
      case DriftStatus.onTrack:
        col = AppTheme.primaryEmerald;
        label = 'Drift-Radar: Prognose intakt • KI überwacht stündlich';
        icon = Icons.radar;
        break;
    }

    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
      decoration: BoxDecoration(
        color: col.withValues(alpha: 0.08),
        borderRadius: BorderRadius.circular(8),
        border: Border.all(color: col.withValues(alpha: 0.25)),
      ),
      child: Row(
        children: [
          Icon(icon, color: col, size: 14),
          const SizedBox(width: 6),
          Expanded(
            child: Text(label, style: TextStyle(color: col, fontSize: 11, fontWeight: FontWeight.bold)),
          ),
        ],
      ),
    );
  }

  Widget _priceItem(String label, String val, Color valColor) {
    return Column(
      children: [
        Text(label, style: TextStyle(color: AppTheme.textMuted, fontSize: 10)),
        const SizedBox(height: 2),
        Text(val, style: TextStyle(color: valColor, fontWeight: FontWeight.bold, fontSize: 12)),
      ],
    );
  }
}