import 'package:flutter/material.dart';
import '../../../../core/theme/app_theme.dart';
import '../../../../core/theme/app_theme_extension.dart';
import '../../../../core/theme/app_spacing.dart';
import '../../../../providers/asset_provider.dart';
import '../../../components/glass_panel.dart';

/// 余额卡片 — .pen node 59637
/// cornerRadius: lg, fill: $surface-card, padding: 20, stroke: $border-default 1px, gap: 12
/// balLabel: "USDT 余额" 12px normal $text-secondary
/// balAmount: "25,680.50" 28px w700 $text-primary
/// balSubRow: "≈ $25,680.50 USD" 12px normal $text-muted
class BalanceCard extends StatelessWidget {
  final AssetProvider provider;
  final int activeTab;

  const BalanceCard({
    super.key,
    required this.provider,
    required this.activeTab,
  });

  @override
  Widget build(BuildContext context) {
    final displayBalance = activeTab == 0
        ? (provider.fundAccount?.balance ?? provider.overview?.fundBalance ?? '0.00')
        : _calculateTradeTotal();

    return GlassPanel(
      padding: const EdgeInsets.all(20),
      borderRadius: BorderRadius.circular(AppRadius.lg),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'USDT 余额',
            style: AppTextStyles.bodyMedium(context).copyWith(
              color: context.colors.onSurfaceVariant,
              fontWeight: FontWeight.w400,
            ),
          ),
          const SizedBox(height: 12),
          Text(
            _formatBalance(displayBalance),
            style: AppTextStyles.numberLarge(context),
          ),
          const SizedBox(height: 12),
          Text(
            '\u2248 \$${_formatBalance(displayBalance)} USD',
            style: AppTextStyles.bodyMedium(context).copyWith(
              color: context.appColors.onSurfaceMuted,
              fontWeight: FontWeight.w400,
            ),
          ),
        ],
      ),
    );
  }

  String _calculateTradeTotal() {
    double total = 0;
    for (var h in provider.holdings) {
      total += double.tryParse(h.currentValue?.toString() ?? '0') ?? 0;
    }
    return total.toStringAsFixed(2);
  }

  String _formatBalance(String balance) {
    final d = double.tryParse(balance) ?? 0;
    return d.toStringAsFixed(2).replaceAllMapped(
      RegExp(r'\B(?=(\d{3})+(?!\d))'),
      (Match m) => ',',
    );
  }
}