import 'package:flutter/material.dart';
import '../../../../core/theme/app_theme.dart';
import '../models/trade_model.dart';

class TradeDetailContent extends StatelessWidget {
  final TradeModel trade;

  const TradeDetailContent({super.key, required this.trade});

  @override
  Widget build(BuildContext context) {
    final pnlAbs = trade.calculatedPnlAbs;
    final pnlPct = trade.calculatedPnlPct;
    final isPnlPos = pnlAbs >= 0;
    final pnlColor = isPnlPos ? AppTheme.primaryEmerald : AppTheme.accentRed;
    final currPrice = trade.effectiveCurrentPrice;

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Container(
          padding: const EdgeInsets.all(16),
          decoration: BoxDecoration(
            color: Colors.black.withValues(alpha: 0.3),
            borderRadius: BorderRadius.circular(14),
            border: Border.all(color: Colors.white.withValues(alpha: 0.08)),
          ),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceAround,
            children: [
              _metricItem(
                trade.isActive || trade.isClosed ? 'Ausführung' : 'Ziel-Einstieg',
                trade.actualEntryPrice > 0
                    ? '${trade.actualEntryPrice.toStringAsFixed(2)} €'
                    : (trade.entryPrice > 0 ? '${trade.entryPrice.toStringAsFixed(2)} €' : '-'),
                Colors.white,
              ),
              _metricItem('Live-Kurs', '${currPrice.toStringAsFixed(2)} €', AppTheme.accentCyan),
              _metricItem('Stop-Loss', '${trade.stopLoss.toStringAsFixed(2)} €', AppTheme.accentRed),
              _metricItem('Take-Profit', '${trade.takeProfit.toStringAsFixed(2)} €', AppTheme.primaryEmerald),
            ],
          ),
        ),
        if (trade.isActive || trade.isClosed) ...[
          const SizedBox(height: 14),
          Container(
            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
            decoration: BoxDecoration(
              color: pnlColor.withValues(alpha: 0.12),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(color: pnlColor.withValues(alpha: 0.3)),
            ),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                const Text('Aktueller PnL:', style: TextStyle(color: Colors.white70, fontSize: 13)),
                Text(
                  '${isPnlPos ? '+' : ''}${pnlAbs.toStringAsFixed(2)} € (${isPnlPos ? '+' : ''}${pnlPct.toStringAsFixed(2)}%)',
                  style: TextStyle(color: pnlColor, fontWeight: FontWeight.bold, fontSize: 15),
                ),
              ],
            ),
          ),
        ],
        const SizedBox(height: 20),
        if (trade.reasoning.isNotEmpty) ...[
          _sectionTitle(Icons.auto_awesome, 'KI-Gesamteinschätzung & Begründung', AppTheme.primaryEmerald),
          const SizedBox(height: 8),
          Container(
            width: double.infinity,
            padding: const EdgeInsets.all(14),
            decoration: BoxDecoration(
              color: AppTheme.primaryEmerald.withValues(alpha: 0.08),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(color: AppTheme.primaryEmerald.withValues(alpha: 0.2)),
            ),
            child: Text(trade.reasoning, style: const TextStyle(color: Colors.white, fontSize: 13, height: 1.4)),
          ),
          const SizedBox(height: 18),
        ],
        if (trade.technicalRationale.isNotEmpty) ...[
          _sectionTitle(Icons.show_chart, 'Technische Analyse & Indikatoren', AppTheme.accentCyan),
          const SizedBox(height: 8),
          Container(
            width: double.infinity,
            padding: const EdgeInsets.all(14),
            decoration: BoxDecoration(
              color: Colors.white.withValues(alpha: 0.03),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(color: Colors.white.withValues(alpha: 0.08)),
            ),
            child: Text(trade.technicalRationale, style: TextStyle(color: AppTheme.textMuted, fontSize: 13, height: 1.4)),
          ),
          const SizedBox(height: 18),
        ],
        if (trade.fundamentalRationale.isNotEmpty) ...[
          _sectionTitle(Icons.account_balance, 'Fundamentale Bewertung', Colors.purpleAccent),
          const SizedBox(height: 8),
          Container(
            width: double.infinity,
            padding: const EdgeInsets.all(14),
            decoration: BoxDecoration(
              color: Colors.white.withValues(alpha: 0.03),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(color: Colors.white.withValues(alpha: 0.08)),
            ),
            child: Text(trade.fundamentalRationale, style: TextStyle(color: AppTheme.textMuted, fontSize: 13, height: 1.4)),
          ),
          const SizedBox(height: 18),
        ],
        if (trade.riskWarning.isNotEmpty) ...[
          _sectionTitle(Icons.warning_amber_rounded, 'Risikohinweis & Marktumfeld', AppTheme.accentRed),
          const SizedBox(height: 8),
          Container(
            width: double.infinity,
            padding: const EdgeInsets.all(14),
            decoration: BoxDecoration(
              color: AppTheme.accentRed.withValues(alpha: 0.1),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(color: AppTheme.accentRed.withValues(alpha: 0.3)),
            ),
            child: Text(trade.riskWarning, style: TextStyle(color: AppTheme.accentRed, fontSize: 12, height: 1.4)),
          ),
          const SizedBox(height: 18),
        ],
        _sectionTitle(Icons.tune, 'Trade-Parameter & Instrument', Colors.white70),
        const SizedBox(height: 8),
        Container(
          padding: const EdgeInsets.all(14),
          decoration: BoxDecoration(
            color: Colors.white.withValues(alpha: 0.02),
            borderRadius: BorderRadius.circular(12),
            border: Border.all(color: Colors.white.withValues(alpha: 0.06)),
          ),
          child: Column(
            children: [
              _paramRow('Instrument Typ:', trade.instrumentType.isNotEmpty ? trade.instrumentType : 'Stock'),
              if (trade.derivativeIsin.isNotEmpty) _paramRow('Derivat / Hebel ISIN:', trade.derivativeIsin),
              _paramRow('Zeithorizont:', trade.timeframe.isNotEmpty ? trade.timeframe : '1D'),
              if (trade.leverageUsed > 1) _paramRow('Hebel:', '${trade.leverageUsed.toStringAsFixed(0)}x'),
              if (trade.positionSize > 0) _paramRow('Positionsgröße:', '${trade.positionSize.toStringAsFixed(2)} €'),
            ],
          ),
        ),
      ],
    );
  }

  Widget _sectionTitle(IconData icon, String title, Color color) {
    return Row(
      children: [
        Icon(icon, size: 16, color: color),
        const SizedBox(width: 8),
        Text(title, style: TextStyle(color: color, fontWeight: FontWeight.bold, fontSize: 13)),
      ],
    );
  }

  Widget _metricItem(String label, String value, Color color) {
    return Column(
      children: [
        Text(label, style: TextStyle(color: AppTheme.textMuted, fontSize: 11)),
        const SizedBox(height: 4),
        Text(value, style: TextStyle(color: color, fontWeight: FontWeight.bold, fontSize: 13)),
      ],
    );
  }

  Widget _paramRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(label, style: TextStyle(color: AppTheme.textMuted, fontSize: 12)),
          Text(value, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 12)),
        ],
      ),
    );
  }
}