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

class BotKpiHeader extends StatelessWidget {
  final AccountSummaryModel summary;
  final BotStatusModel status;
  final double totalUnrealizedPnL;
  final double totalRealizedPnL;

  const BotKpiHeader({
    super.key,
    required this.summary,
    required this.status,
    required this.totalUnrealizedPnL,
    required this.totalRealizedPnL,
  });

  @override
  Widget build(BuildContext context) {
    final isPositiveUnrealized = totalUnrealizedPnL >= 0;
    final isPositiveRealized = totalRealizedPnL >= 0;

    return GlassContainer(
      padding: const EdgeInsets.all(16),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Row(
                children: [
                  Container(
                    width: 10,
                    height: 10,
                    decoration: BoxDecoration(
                      shape: BoxShape.circle,
                      color: status.isRunning ? AppTheme.primaryEmerald : AppTheme.accentRed,
                      boxShadow: [
                        BoxShadow(
                          color: (status.isRunning ? AppTheme.primaryEmerald : AppTheme.accentRed).withValues(alpha: 0.5),
                          blurRadius: 8,
                          spreadRadius: 2,
                        ),
                      ],
                    ),
                  ),
                  const SizedBox(width: 8),
                  Text(
                    status.isRunning ? 'AUTONOMOUS BOT ONLINE' : 'BOT PAUSED',
                    style: TextStyle(
                      fontSize: 12,
                      fontWeight: FontWeight.bold,
                      letterSpacing: 1.2,
                      color: status.isRunning ? AppTheme.primaryEmerald : AppTheme.accentRed,
                    ),
                  ),
                ],
              ),
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(12),
                  color: status.autoExecutionEnabled ? AppTheme.primaryEmerald.withValues(alpha: 0.15) : Colors.amber.withValues(alpha: 0.15),
                  border: Border.all(
                    color: status.autoExecutionEnabled ? AppTheme.primaryEmerald : Colors.amber,
                    width: 1,
                  ),
                ),
                child: Text(
                  status.autoExecutionEnabled ? 'AUTO-EXECUTE ON' : 'MANUAL APPROVAL',
                  style: TextStyle(
                    fontSize: 11,
                    fontWeight: FontWeight.w600,
                    color: status.autoExecutionEnabled ? AppTheme.primaryEmerald : Colors.amber,
                  ),
                ),
              ),
            ],
          ),
          const SizedBox(height: 16),
          Row(
            children: [
              Expanded(
                child: summary.hasAccountData
                    ? _buildMetricCard(
                        title: 'Portfolio Equity',
                        value: '€${summary.equity!.toStringAsFixed(2)}',
                        subtitle: 'Buying Power: €${summary.buyingPower!.toStringAsFixed(0)}',
                        valueColor: Colors.white,
                      )
                    : _buildUnavailableMetricCard('Portfolio Equity'),
              ),
              const SizedBox(width: 12),
              Expanded(
                child: _buildMetricCard(
                  title: 'Unrealized PnL',
                  value: '${isPositiveUnrealized ? '+' : ''}€${totalUnrealizedPnL.toStringAsFixed(2)}',
                  subtitle: 'Realized: ${isPositiveRealized ? '+' : ''}€${totalRealizedPnL.toStringAsFixed(2)}',
                  valueColor: isPositiveUnrealized ? AppTheme.primaryEmerald : AppTheme.accentRed,
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildUnavailableMetricCard(String title) {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(12),
        color: Colors.white.withValues(alpha: 0.03),
        border: Border.all(color: Colors.white.withValues(alpha: 0.06)),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(title, style: TextStyle(color: AppTheme.textMuted, fontSize: 11)),
          const SizedBox(height: 4),
          Row(
            children: [
              Icon(Icons.error_outline, size: 14, color: AppTheme.textMuted),
              const SizedBox(width: 4),
              Expanded(
                child: Text(
                  'Portfoliodaten nicht verfügbar',
                  style: TextStyle(color: AppTheme.textMuted, fontSize: 12, fontWeight: FontWeight.w600),
                  overflow: TextOverflow.ellipsis,
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildMetricCard({
    required String title,
    required String value,
    required String subtitle,
    required Color valueColor,
  }) {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(12),
        color: Colors.white.withValues(alpha: 0.03),
        border: Border.all(color: Colors.white.withValues(alpha: 0.06)),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(title, style: TextStyle(color: AppTheme.textMuted, fontSize: 11)),
          const SizedBox(height: 4),
          Text(value, style: TextStyle(color: valueColor, fontSize: 18, fontWeight: FontWeight.bold)),
          const SizedBox(height: 4),
          Text(subtitle, style: TextStyle(color: AppTheme.textMuted, fontSize: 10)),
        ],
      ),
    );
  }
}