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

class BotSettingsSheet extends StatefulWidget {
  final BotStatusModel currentStatus;
  final Function(bool autoExec, int maxPos, double risk, int minScore) onSave;
  final VoidCallback onPanicClose;

  const BotSettingsSheet({
    super.key,
    required this.currentStatus,
    required this.onSave,
    required this.onPanicClose,
  });

  @override
  State<BotSettingsSheet> createState() => _BotSettingsSheetState();
}

class _BotSettingsSheetState extends State<BotSettingsSheet> {
  late bool _autoExec;
  late int _maxPositions;
  late double _riskPerTrade;
  late int _minScore;

  @override
  void initState() {
    super.initState();
    _autoExec = widget.currentStatus.autoExecutionEnabled;
    _maxPositions = widget.currentStatus.maxPositions;
    _riskPerTrade = widget.currentStatus.riskPerTradePercent;
    _minScore = widget.currentStatus.minCompositeScore;
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.all(24),
      decoration: BoxDecoration(
        color: AppTheme.cardSurface,
        borderRadius: const BorderRadius.vertical(top: Radius.circular(24)),
      ),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              const Text(
                'Bot Konfiguration & Kill-Switch',
                style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold, color: Colors.white),
              ),
              IconButton(
                onPressed: () => Navigator.of(context).pop(),
                icon: const Icon(Icons.close, color: Colors.white70),
              ),
            ],
          ),
          const SizedBox(height: 16),
          SwitchListTile(
            title: const Text('Automatische Ausführung (Auto-Trade)', style: TextStyle(color: Colors.white)),
            subtitle: Text('Führt geprüfte Signale ab Score ≥ $_minScore automatisch aus', style: TextStyle(color: AppTheme.textMuted, fontSize: 12)),
            value: _autoExec,
            activeThumbColor: AppTheme.primaryEmerald,
            onChanged: (val) => setState(() => _autoExec = val),

          ),
          const SizedBox(height: 12),
          Text('Max. Parallele Positionen: $_maxPositions', style: const TextStyle(color: Colors.white70)),
          Slider(
            value: _maxPositions.toDouble(),
            min: 1,
            max: 10,
            divisions: 9,
            activeColor: AppTheme.primaryEmerald,
            label: '$_maxPositions',
            onChanged: (val) => setState(() => _maxPositions = val.toInt()),
          ),
          const SizedBox(height: 8),
          Text('Risiko pro Trade: ${_riskPerTrade.toStringAsFixed(1)}% des Portfolios', style: const TextStyle(color: Colors.white70)),
          Slider(
            value: _riskPerTrade,
            min: 0.2,
            max: 3.0,
            divisions: 28,
            activeColor: AppTheme.primaryEmerald,
            label: '${_riskPerTrade.toStringAsFixed(1)}%',
            onChanged: (val) => setState(() => _riskPerTrade = val),
          ),
          const SizedBox(height: 8),
          Text('Mindest-Score für Einstieg: $_minScore Punkte', style: const TextStyle(color: Colors.white70)),
          Slider(
            value: _minScore.toDouble(),
            min: 60,
            max: 95,
            divisions: 35,
            activeColor: AppTheme.primaryEmerald,
            label: '$_minScore Pkt',
            onChanged: (val) => setState(() => _minScore = val.toInt()),
          ),
          const SizedBox(height: 20),
          Row(
            children: [
              Expanded(
                child: ElevatedButton.icon(
                  onPressed: () {
                    widget.onSave(_autoExec, _maxPositions, _riskPerTrade, _minScore);
                    Navigator.of(context).pop();
                  },
                  icon: const Icon(Icons.check),
                  label: const Text('Speichern'),
                  style: ElevatedButton.styleFrom(
                    backgroundColor: AppTheme.primaryEmerald,
                    padding: const EdgeInsets.symmetric(vertical: 14),
                  ),
                ),
              ),
              const SizedBox(width: 12),
              ElevatedButton.icon(
                onPressed: () {
                  Navigator.of(context).pop();
                  _showPanicConfirmation(context);
                },
                icon: const Icon(Icons.warning, color: Colors.white),
                label: const Text('PANIC CLOSE', style: TextStyle(color: Colors.white)),
                style: ElevatedButton.styleFrom(
                  backgroundColor: AppTheme.accentRed,
                  padding: const EdgeInsets.symmetric(vertical: 14, horizontal: 16),
                ),
              ),
            ],
          ),
          const SizedBox(height: 16),
        ],
      ),
    );
  }

  void _showPanicConfirmation(BuildContext context) {
    showDialog(
      context: context,
      builder: (ctx) => AlertDialog(
        backgroundColor: AppTheme.cardSurface,
        title: Text('🚨 Notverkauf bestätigen', style: TextStyle(color: AppTheme.accentRed)),

        content: const Text(
          'Möchtest du wirklich SOFORT alle offenen Bot-Positionen schließen? Dieser Vorgang kann nicht rückgängig gemacht werden.',
          style: TextStyle(color: Colors.white70),
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(ctx).pop(),
            child: const Text('Abbrechen', style: TextStyle(color: Colors.white70)),
          ),
          ElevatedButton(
            onPressed: () {
              Navigator.of(ctx).pop();
              widget.onPanicClose();
            },
            style: ElevatedButton.styleFrom(backgroundColor: AppTheme.accentRed),
            child: const Text('ALLE POSITIONEN SCHLIESSEN'),
          ),
        ],
      ),
    );
  }
}