import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:shadcn_ui/shadcn_ui.dart';
import 'package:bot_toast/bot_toast.dart';
import 'package:provider/provider.dart';
import 'package:google_fonts/google_fonts.dart';
import '../../../core/theme/app_color_scheme.dart';
import '../../../core/theme/app_spacing.dart';
import '../../../core/utils/toast_utils.dart';
import '../../../data/models/account_models.dart';
import '../../../data/services/asset_service.dart';
import '../../../data/services/bonus_service.dart';
import '../../../providers/asset_provider.dart';
import '../../../providers/auth_provider.dart';
import '../../components/glass_panel.dart';
import '../../components/neon_glow.dart';
import '../main/main_page.dart';

/// 首页
class HomePage extends StatefulWidget {
  const HomePage({super.key});

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage>
    with AutomaticKeepAliveClientMixin {
  bool _bonusClaimed = false;
  bool _bonusLoading = false;

  @override
  bool get wantKeepAlive => true;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) => _loadData());
  }

  void _loadData() {
    final provider = context.read<AssetProvider>();
    provider.loadOverview();
    provider.loadTradeAccount();
    _checkBonusStatus();
  }

  Future<void> _checkBonusStatus() async {
    try {
      final bonusService = context.read<BonusService>();
      final response = await bonusService.getStatus();
      if (response.success && response.data != null) {
        setState(() {
          _bonusClaimed = response.data!['claimed'] == true;
        });
      }
    } catch (_) {}
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);
    final colorScheme = Theme.of(context).colorScheme;

    return Scaffold(
      backgroundColor: colorScheme.background,
      body: Consumer<AssetProvider>(
        builder: (context, provider, _) {
          return RefreshIndicator(
            onRefresh: () => provider.refreshAll(force: true),
            color: colorScheme.primary,
            child: SingleChildScrollView(
              physics: const AlwaysScrollableScrollPhysics(),
              padding: EdgeInsets.only(
                left: AppSpacing.lg,
                right: AppSpacing.lg,
                top: AppSpacing.sm,
                bottom: 100,
              ),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  // 问候
                  _GreetingSection(),
                  SizedBox(height: AppSpacing.md),
                  // 资产卡片（含总盈利 + 可折叠盈亏日历）
                  _AssetCard(
                    overview: provider.overview,
                    onDeposit: _showDeposit,
                  ),
                  SizedBox(height: AppSpacing.md),
                  // 新人福利卡片
                  _BonusCard(
                    isClaimed: _bonusClaimed,
                    onClaim: _claimBonus,
                    isLoading: _bonusLoading,
                  ),
                  SizedBox(height: AppSpacing.lg),
                  // 持仓
                  _HoldingsSection(holdings: provider.holdings),
                ],
              ),
            ),
          );
        },
      ),
    );
  }

  void _showDeposit() {
    final amountController = TextEditingController();
    final formKey = GlobalKey<ShadFormState>();
    final colorScheme = Theme.of(context).colorScheme;

    showShadDialog(
      context: context,
      builder: (ctx) => Dialog(
        backgroundColor: Colors.transparent,
        child: GlassPanel(
          borderRadius: BorderRadius.circular(AppRadius.xxl),
          padding: EdgeInsets.all(AppSpacing.lg),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        '充值',
                        style: GoogleFonts.spaceGrotesk(
                          fontSize: 24,
                          fontWeight: FontWeight.bold,
                          color: colorScheme.onSurface,
                        ),
                      ),
                      SizedBox(height: AppSpacing.xs),
                      Text(
                        '资产: USDT',
                        style: TextStyle(
                          fontSize: 12,
                          color: colorScheme.onSurfaceVariant,
                        ),
                      ),
                    ],
                  ),
                  Container(
                    padding: EdgeInsets.all(AppSpacing.sm),
                    decoration: BoxDecoration(
                      color: colorScheme.surfaceContainerHigh,
                      borderRadius: BorderRadius.circular(AppRadius.md),
                    ),
                    child: Icon(LucideIcons.wallet, color: colorScheme.secondary),
                  ),
                ],
              ),
              SizedBox(height: AppSpacing.lg),
              ShadForm(
                key: formKey,
                child: ShadInputFormField(
                  id: 'amount',
                  controller: amountController,
                  label: const Text('充值金额'),
                  placeholder: const Text('0.00'),
                  keyboardType: const TextInputType.numberWithOptions(decimal: true),
                  validator: (v) {
                    if (v == null || v.isEmpty) return '请输入金额';
                    final n = double.tryParse(v);
                    if (n == null || n <= 0) return '请输入有效金额';
                    return null;
                  },
                ),
              ),
              SizedBox(height: AppSpacing.lg),
              Row(
                children: [
                  Expanded(
                    child: NeonButton(
                      text: '取消',
                      type: NeonButtonType.outline,
                      onPressed: () => Navigator.of(ctx).pop(),
                      height: 48,
                      showGlow: false,
                    ),
                  ),
                  SizedBox(width: AppSpacing.sm),
                  Expanded(
                    child: NeonButton(
                      text: '下一步',
                      type: NeonButtonType.primary,
                      onPressed: () async {
                        if (formKey.currentState!.saveAndValidate()) {
                          Navigator.of(ctx).pop();
                          final response = await context
                              .read<AssetProvider>()
                              .deposit(amount: amountController.text);
                          if (mounted) {
                            if (response.success && response.data != null) {
                              _showDepositResultDialog(context, response.data!);
                            } else {
                              _showResultDialog(
                                '申请失败',
                                response.message ?? '请稍后重试',
                              );
                            }
                          }
                        }
                      },
                      height: 48,
                      showGlow: true,
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  void _showDepositResultDialog(BuildContext context, Map<String, dynamic> data) {
    final orderNo = data['orderNo'] as String? ?? '';
    final amount = data['amount']?.toString() ?? '0.00';
    final walletAddress = data['walletAddress'] as String? ?? '';
    final walletNetwork = data['walletNetwork'] as String? ?? 'TRC20';
    final colorScheme = Theme.of(context).colorScheme;

    showShadDialog(
      context: context,
      builder: (ctx) => Dialog(
        backgroundColor: Colors.transparent,
        child: GlassPanel(
          borderRadius: BorderRadius.circular(AppRadius.xxl),
          padding: EdgeInsets.all(AppSpacing.lg),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                children: [
                  NeonIcon(
                    icon: Icons.check_circle,
                    color: AppColorScheme.up,
                    size: 24,
                  ),
                  SizedBox(width: AppSpacing.sm),
                  Text(
                    '充值申请成功',
                    style: GoogleFonts.spaceGrotesk(
                      fontSize: 20,
                      fontWeight: FontWeight.bold,
                      color: colorScheme.onSurface,
                    ),
                  ),
                ],
              ),
              SizedBox(height: AppSpacing.lg),
              _InfoRow(label: '订单号', value: orderNo),
              SizedBox(height: AppSpacing.sm),
              _InfoRow(label: '充值金额', value: '$amount USDT', isBold: true),
              SizedBox(height: AppSpacing.lg),
              Text(
                '请向以下地址转账:',
                style: TextStyle(fontSize: 12, color: colorScheme.onSurfaceVariant),
              ),
              SizedBox(height: AppSpacing.sm),
              _WalletAddressCard(address: walletAddress, network: walletNetwork),
              SizedBox(height: AppSpacing.md),
              Container(
                padding: EdgeInsets.all(AppSpacing.sm),
                decoration: BoxDecoration(
                  color: AppColorScheme.warning.withOpacity(0.1),
                  borderRadius: BorderRadius.circular(AppRadius.md),
                  border: Border.all(color: AppColorScheme.warning.withOpacity(0.2)),
                ),
                child: Row(
                  children: [
                    Icon(Icons.info_outline, size: 16, color: AppColorScheme.warning),
                    SizedBox(width: AppSpacing.sm),
                    Expanded(
                      child: Text(
                        '转账完成后请点击"已打款"按钮确认',
                        style: TextStyle(fontSize: 12, color: AppColorScheme.warning),
                      ),
                    ),
                  ],
                ),
              ),
              SizedBox(height: AppSpacing.lg),
              Row(
                children: [
                  Expanded(
                    child: NeonButton(
                      text: '稍后确认',
                      type: NeonButtonType.outline,
                      onPressed: () {
                        Navigator.of(ctx).pop();
                        _navigateToAssetPage();
                      },
                      height: 44,
                      showGlow: false,
                    ),
                  ),
                  SizedBox(width: AppSpacing.sm),
                  Expanded(
                    child: NeonButton(
                      text: '已打款',
                      type: NeonButtonType.primary,
                      onPressed: () async {
                        Navigator.of(ctx).pop();
                        final response = await context
                            .read<AssetProvider>()
                            .confirmPay(orderNo);
                        if (context.mounted) {
                          _showResultDialog(
                            response.success ? '确认成功' : '确认失败',
                            response.success ? '请等待管理员审核' : response.message,
                          );
                          _navigateToAssetPage();
                        }
                      },
                      height: 44,
                      showGlow: true,
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  void _showResultDialog(String title, String? message) {
    final colorScheme = Theme.of(context).colorScheme;
    showShadDialog(
      context: context,
      builder: (ctx) => Dialog(
        backgroundColor: Colors.transparent,
        child: GlassPanel(
          borderRadius: BorderRadius.circular(AppRadius.xxl),
          padding: EdgeInsets.all(AppSpacing.lg),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Text(title,
                  style: GoogleFonts.spaceGrotesk(
                    fontSize: 20,
                    fontWeight: FontWeight.bold,
                    color: colorScheme.onSurface,
                  )),
              if (message != null) ...[
                SizedBox(height: AppSpacing.sm),
                Text(message,
                    style: TextStyle(color: colorScheme.onSurfaceVariant),
                    textAlign: TextAlign.center),
              ],
              SizedBox(height: AppSpacing.lg),
              SizedBox(
                width: double.infinity,
                child: NeonButton(
                  text: '确定',
                  type: NeonButtonType.primary,
                  onPressed: () => Navigator.of(ctx).pop(),
                  height: 44,
                  showGlow: false,
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  /// 跳转到资产页面
  void _navigateToAssetPage() {
    final mainState = context.findAncestorStateOfType<MainPageState>();
    mainState?.switchToTab(3);
  }

  Future<void> _claimBonus() async {
    setState(() => _bonusLoading = true);
    try {
      final bonusService = context.read<BonusService>();
      final response = await bonusService.claim();
      if (!mounted) return;

      if (response.success) {
        setState(() => _bonusClaimed = true);
        context.read<AssetProvider>().refreshAll(force: true);
        showShadDialog(
          context: context,
          builder: (ctx) => ShadDialog.alert(
            title: const Text('领取成功'),
            description:
                Text('50 USDT 已到账，请划转至交易账户后即可开始交易'),
            actions: [
              ShadButton(
                child: const Text('确定'),
                onPressed: () => Navigator.of(ctx).pop(),
              ),
            ],
          ),
        );
      } else {
        showShadDialog(
          context: context,
          builder: (ctx) => ShadDialog.alert(
            title: const Text('领取失败'),
            description: Text(response.message ?? '请稍后重试'),
            actions: [
              ShadButton(
                child: const Text('确定'),
                onPressed: () => Navigator.of(ctx).pop(),
              ),
            ],
          ),
        );
      }
    } catch (e) {
      if (mounted) {
        showShadDialog(
          context: context,
          builder: (ctx) => ShadDialog.alert(
            title: const Text('领取失败'),
            description: Text(e.toString()),
            actions: [
              ShadButton(
                child: const Text('确定'),
                onPressed: () => Navigator.of(ctx).pop(),
              ),
            ],
          ),
        );
      }
    } finally {
      if (mounted) setState(() => _bonusLoading = false);
    }
  }
}

/// 问候区域
class _GreetingSection extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Consumer<AuthProvider>(
      builder: (context, auth, _) {
        return Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(
              '欢迎回来，',
              style: TextStyle(
                color: colorScheme.onSurfaceVariant,
                fontSize: 14,
              ),
            ),
            SizedBox(height: AppSpacing.xs),
            Text(
              auth.user?.username ?? '用户',
              style: TextStyle(
                color: colorScheme.onSurface,
                fontWeight: FontWeight.bold,
                fontSize: 24,
              ),
            ),
          ],
        );
      },
    );
  }
}

/// 资产卡片（含总盈利 + 可折叠盈亏日历）
class _AssetCard extends StatefulWidget {
  final AssetOverview? overview;
  final VoidCallback onDeposit;

  const _AssetCard({required this.overview, required this.onDeposit});

  @override
  State<_AssetCard> createState() => _AssetCardState();
}

class _AssetCardState extends State<_AssetCard> {
  bool _calendarExpanded = false;
  late DateTime _currentMonth;
  Map<String, dynamic>? _profitData;
  bool _isLoadingCalendar = false;

  @override
  void initState() {
    super.initState();
    _currentMonth = DateTime.now();
    WidgetsBinding.instance.addPostFrameCallback((_) => _loadProfit());
  }

  double get _totalProfit {
    final v = widget.overview?.totalProfit;
    if (v == null) return 0;
    return double.tryParse(v) ?? 0;
  }

  Future<void> _toggleCalendar() async {
    setState(() => _calendarExpanded = !_calendarExpanded);
    if (_calendarExpanded && _profitData == null) {
      await _loadProfit();
    }
  }

  Future<void> _loadProfit() async {
    setState(() => _isLoadingCalendar = true);
    try {
      final assetService = context.read<AssetService>();
      final response = await assetService.getDailyProfit(
        year: _currentMonth.year,
        month: _currentMonth.month,
      );
      if (mounted) {
        setState(() {
          _profitData = response.data;
          _isLoadingCalendar = false;
        });
      }
    } catch (_) {
      if (mounted) setState(() => _isLoadingCalendar = false);
    }
  }

  void _previousMonth() {
    setState(() {
      _currentMonth = DateTime(_currentMonth.year, _currentMonth.month - 1);
    });
    _loadProfit();
  }

  void _nextMonth() {
    setState(() {
      _currentMonth = DateTime(_currentMonth.year, _currentMonth.month + 1);
    });
    _loadProfit();
  }

  double? _getDayProfit(int day) {
    if (_profitData == null) return null;
    final daily = _profitData!['daily'] as Map<String, dynamic>?;
    if (daily == null) return null;
    final dateStr = '${_currentMonth.year}-${_currentMonth.month.toString().padLeft(2, '0')}-${day.toString().padLeft(2, '0')}';
    final value = daily[dateStr];
    if (value == null) return null;
    return (value is num) ? value.toDouble() : double.tryParse(value.toString());
  }

  double get _monthProfit {
    if (_profitData == null) return 0;
    final value = _profitData!['totalProfit'];
    if (value == null) return 0;
    return (value is num) ? value.toDouble() : double.tryParse(value.toString()) ?? 0;
  }

  double? get _todayProfit {
    if (_profitData == null) return null;
    final daily = _profitData!['daily'] as Map<String, dynamic>?;
    if (daily == null) return null;
    final now = DateTime.now();
    final todayKey = '${now.year}-${now.month.toString().padLeft(2, '0')}-${now.day.toString().padLeft(2, '0')}';
    final value = daily[todayKey];
    if (value == null) return null;
    return (value is num) ? value.toDouble() : double.tryParse(value.toString());
  }

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    final isDark = Theme.of(context).brightness == Brightness.dark;
    final upColor = AppColorScheme.getUpColor(isDark);
    final downColor = AppColorScheme.down;
    final isProfit = _totalProfit >= 0;
    final todayProfit = _todayProfit;
    final isTodayProfit = (todayProfit ?? 0) >= 0;

    // 总资产
    final totalAsset = widget.overview?.totalAsset ?? '0.00';
    final displayAsset = _formatAsset(totalAsset);

    return GlassPanel(
      padding: EdgeInsets.all(AppSpacing.lg),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // 顶部行：总资产标签 + 充值按钮
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(
                '预估总资产(USDT)',
                style: TextStyle(
                  color: colorScheme.onSurfaceVariant,
                  fontSize: 12,
                ),
              ),
              GestureDetector(
                onTap: widget.onDeposit,
                child: Container(
                  padding: EdgeInsets.symmetric(
                    horizontal: AppSpacing.md,
                    vertical: AppSpacing.xs + 2,
                  ),
                  decoration: BoxDecoration(
                    color: colorScheme.primary.withOpacity(0.1),
                    borderRadius: BorderRadius.circular(AppRadius.full),
                    border: Border.all(color: colorScheme.primary.withOpacity(0.2)),
                  ),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Icon(Icons.add, size: 14, color: colorScheme.primary),
                      SizedBox(width: 4),
                      Text(
                        '充值',
                        style: TextStyle(
                          color: colorScheme.primary,
                          fontSize: 12,
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ],
          ),
          SizedBox(height: AppSpacing.sm),

          // 总资产金额
          Text(
            displayAsset,
            style: GoogleFonts.spaceGrotesk(
              fontSize: 32,
              fontWeight: FontWeight.bold,
              color: colorScheme.onSurface,
            ),
          ),
          SizedBox(height: AppSpacing.md),

          // 盈亏统计区：今日盈亏 | 总盈亏 + 盈亏分析按钮
          Row(
            children: [
              // 今日盈亏卡片
              Expanded(
                child: _ProfitStatCard(
                  label: '今日盈亏',
                  value: _todayProfit,
                  upColor: upColor,
                  downColor: downColor,
                ),
              ),
              SizedBox(width: AppSpacing.sm),
              // 总盈亏卡片
              Expanded(
                child: _ProfitStatCard(
                  label: '总盈亏',
                  value: _totalProfit,
                  upColor: upColor,
                  downColor: downColor,
                ),
              ),
              SizedBox(width: AppSpacing.sm),
              // 盈亏分析按钮
              GestureDetector(
                onTap: _toggleCalendar,
                child: Container(
                  padding: EdgeInsets.symmetric(horizontal: 10, vertical: 4),
                  decoration: BoxDecoration(
                    color: _calendarExpanded
                        ? colorScheme.primary.withOpacity(0.1)
                        : colorScheme.surfaceContainerHigh,
                    borderRadius: BorderRadius.circular(AppRadius.full),
                    border: _calendarExpanded
                        ? Border.all(color: colorScheme.primary.withOpacity(0.2))
                        : null,
                  ),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Icon(
                        LucideIcons.chartBar,
                        size: 13,
                        color: _calendarExpanded
                            ? colorScheme.primary
                            : colorScheme.onSurfaceVariant,
                      ),
                      SizedBox(width: 4),
                      Text(
                        '盈亏分析',
                        style: TextStyle(
                          fontSize: 11,
                          fontWeight: _calendarExpanded ? FontWeight.w600 : FontWeight.w500,
                          color: _calendarExpanded
                              ? colorScheme.primary
                              : colorScheme.onSurfaceVariant,
                        ),
                      ),
                      SizedBox(width: 2),
                      AnimatedRotation(
                        turns: _calendarExpanded ? 0.5 : 0,
                        duration: const Duration(milliseconds: 200),
                        child: Icon(
                          LucideIcons.chevronDown,
                          size: 13,
                          color: _calendarExpanded
                              ? colorScheme.primary
                              : colorScheme.onSurfaceVariant,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ],
          ),

          // 可折叠的盈利日历
          AnimatedCrossFade(
            firstChild: const SizedBox.shrink(),
            secondChild: _buildCalendarSection(
              context, colorScheme, isDark, upColor, downColor,
            ),
            crossFadeState: _calendarExpanded
                ? CrossFadeState.showSecond
                : CrossFadeState.showFirst,
            duration: const Duration(milliseconds: 300),
            sizeCurve: Curves.easeInOut,
          ),
        ],
      ),
    );
  }

  Widget _buildCalendarSection(
    BuildContext context,
    ColorScheme colorScheme,
    bool isDark,
    Color upColor,
    Color downColor,
  ) {
    final now = DateTime.now();
    final isCurrentMonth = _currentMonth.year == now.year && _currentMonth.month == now.month;
    final firstDayOfMonth = DateTime(_currentMonth.year, _currentMonth.month, 1);
    final daysInMonth = DateTime(_currentMonth.year, _currentMonth.month + 1, 0).day;
    final startWeekday = firstDayOfMonth.weekday;

    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        // 分隔线
        Padding(
          padding: EdgeInsets.symmetric(vertical: AppSpacing.md),
          child: Divider(color: colorScheme.outlineVariant.withOpacity(0.15), height: 1),
        ),

        // 月份导航行
        Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            GestureDetector(
              onTap: _previousMonth,
              child: Container(
                padding: EdgeInsets.all(AppSpacing.xs + 1),
                decoration: BoxDecoration(
                  color: colorScheme.surfaceContainerHigh,
                  borderRadius: BorderRadius.circular(AppRadius.sm),
                ),
                child: Icon(LucideIcons.chevronLeft, size: 16, color: colorScheme.onSurfaceVariant),
              ),
            ),
            Column(
              children: [
                Text(
                  '${_currentMonth.year}年${_currentMonth.month}月',
                  style: GoogleFonts.spaceGrotesk(
                    fontSize: 14,
                    fontWeight: FontWeight.bold,
                    color: colorScheme.onSurface,
                  ),
                ),
                SizedBox(height: 2),
                if (!_isLoadingCalendar && _profitData != null)
                  Text(
                    '月度盈亏: ${_monthProfit >= 0 ? '+' : ''}${_monthProfit.toStringAsFixed(2)}',
                    style: TextStyle(
                      fontSize: 10,
                      fontWeight: FontWeight.w600,
                      color: _monthProfit >= 0 ? upColor : downColor,
                    ),
                  ),
              ],
            ),
            GestureDetector(
              onTap: isCurrentMonth ? null : _nextMonth,
              child: Container(
                padding: EdgeInsets.all(AppSpacing.xs + 1),
                decoration: BoxDecoration(
                  color: isCurrentMonth
                      ? colorScheme.surfaceContainerHigh.withOpacity(0.5)
                      : colorScheme.surfaceContainerHigh,
                  borderRadius: BorderRadius.circular(AppRadius.sm),
                ),
                child: Icon(
                  LucideIcons.chevronRight,
                  size: 16,
                  color: isCurrentMonth
                      ? colorScheme.onSurfaceVariant.withOpacity(0.4)
                      : colorScheme.onSurfaceVariant,
                ),
              ),
            ),
          ],
        ),
        SizedBox(height: AppSpacing.sm),

        // 星期标题
        Row(
          children: ['一', '二', '三', '四', '五', '六', '日'].map((d) {
            return Expanded(
              child: Center(
                child: Text(
                  d,
                  style: TextStyle(
                    fontSize: 10,
                    color: colorScheme.onSurfaceVariant.withOpacity(0.6),
                    fontWeight: FontWeight.w500,
                  ),
                ),
              ),
            );
          }).toList(),
        ),
        SizedBox(height: AppSpacing.xs),

        // 日历网格
        if (_isLoadingCalendar)
          Padding(
            padding: EdgeInsets.symmetric(vertical: AppSpacing.lg),
            child: SizedBox(
              width: 18,
              height: 18,
              child: CircularProgressIndicator(
                strokeWidth: 2,
                color: colorScheme.primary,
              ),
            ),
          )
        else
          ..._buildCalendarGrid(
            startWeekday, daysInMonth, now, isCurrentMonth,
            upColor, downColor, colorScheme,
          ),
      ],
    );
  }

  List<Widget> _buildCalendarGrid(
    int startWeekday,
    int daysInMonth,
    DateTime now,
    bool isCurrentMonth,
    Color upColor,
    Color downColor,
    ColorScheme colorScheme,
  ) {
    final List<Widget> rows = [];
    List<Widget> cells = [];

    for (int i = 1; i < startWeekday; i++) {
      cells.add(const Expanded(child: SizedBox.shrink()));
    }

    for (int day = 1; day <= daysInMonth; day++) {
      final profit = _getDayProfit(day);
      final isToday = isCurrentMonth && day == now.day;
      final hasProfit = profit != null && profit != 0;

      cells.add(
        Expanded(
          child: AspectRatio(
            aspectRatio: 1,
            child: Container(
              margin: EdgeInsets.all(1),
              decoration: BoxDecoration(
                color: isToday
                    ? colorScheme.primary.withOpacity(0.12)
                    : hasProfit
                        ? (profit! > 0
                            ? upColor.withOpacity(0.08)
                            : downColor.withOpacity(0.08))
                        : Colors.transparent,
                borderRadius: BorderRadius.circular(AppRadius.sm),
                border: isToday
                    ? Border.all(color: colorScheme.primary.withOpacity(0.4), width: 1)
                    : null,
              ),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Text(
                    '$day',
                    style: TextStyle(
                      fontSize: 10,
                      fontWeight: isToday ? FontWeight.bold : FontWeight.w400,
                      color: isToday
                          ? colorScheme.primary
                          : colorScheme.onSurface,
                    ),
                  ),
                  if (hasProfit) ...[
                    SizedBox(height: 1),
                    Text(
                      '${profit! > 0 ? '+' : ''}${profit.abs() < 10 ? profit.toStringAsFixed(2) : profit.toStringAsFixed(1)}',
                      style: TextStyle(
                        fontSize: 7,
                        fontWeight: FontWeight.w600,
                        color: profit > 0 ? upColor : downColor,
                      ),
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                    ),
                  ],
                ],
              ),
            ),
          ),
        ),
      );

      if (cells.length == 7) {
        rows.add(Row(children: cells));
        cells = [];
      }
    }

    if (cells.isNotEmpty) {
      while (cells.length < 7) {
        cells.add(const Expanded(child: SizedBox.shrink()));
      }
      rows.add(Row(children: cells));
    }

    return rows;
  }

  String _formatAsset(String value) {
    final d = double.tryParse(value) ?? 0.0;
    return d.toStringAsFixed(2);
  }
}

/// 新人福利卡片
class _BonusCard extends StatelessWidget {
  final bool isClaimed;
  final VoidCallback onClaim;
  final bool isLoading;

  const _BonusCard({required this.isClaimed, required this.onClaim, required this.isLoading});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    final isDark = Theme.of(context).brightness == Brightness.dark;

    return Opacity(
      opacity: isClaimed ? 0.6 : 1.0,
      child: GestureDetector(
        onTap: isClaimed || isLoading ? null : onClaim,
        child: Container(
          width: double.infinity,
          padding: EdgeInsets.all(AppSpacing.lg),
          decoration: BoxDecoration(
            gradient: LinearGradient(
              colors: [
                colorScheme.primary.withOpacity(0.15),
                colorScheme.secondary.withOpacity(0.1),
              ],
              begin: Alignment.topLeft,
              end: Alignment.bottomRight,
            ),
            borderRadius: BorderRadius.circular(AppRadius.xl),
            border: Border.all(color: colorScheme.primary.withOpacity(0.2)),
          ),
          child: Row(
            children: [
              // 左侧图标
              Container(
                width: 48,
                height: 48,
                decoration: BoxDecoration(
                  color: isClaimed
                      ? colorScheme.onSurfaceVariant.withOpacity(0.1)
                      : colorScheme.primary.withOpacity(0.15),
                  borderRadius: BorderRadius.circular(AppRadius.lg),
                ),
                child: Icon(
                  isClaimed ? LucideIcons.check : LucideIcons.gift,
                  color: isClaimed ? AppColorScheme.up : colorScheme.primary,
                  size: 24,
                ),
              ),
              SizedBox(width: AppSpacing.md),
              // 中间文字
              Expanded(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      '新人福利',
                      style: GoogleFonts.spaceGrotesk(
                        fontSize: 16,
                        fontWeight: FontWeight.bold,
                        color: colorScheme.onSurface,
                      ),
                    ),
                    SizedBox(height: AppSpacing.xs),
                    Text(
                      isClaimed ? '50 USDT 体验金已到账' : '领取 50 USDT 体验金，开始您的交易之旅',
                      style: TextStyle(
                        fontSize: 12,
                        color: colorScheme.onSurfaceVariant,
                      ),
                    ),
                  ],
                ),
              ),
              // 右侧按钮
              Container(
                padding: EdgeInsets.symmetric(
                  horizontal: AppSpacing.md,
                  vertical: AppSpacing.sm,
                ),
                decoration: BoxDecoration(
                  color: isClaimed
                      ? colorScheme.onSurfaceVariant.withOpacity(0.15)
                      : null,
                  gradient: isClaimed
                      ? null
                      : (isDark
                          ? AppColorScheme.darkCtaGradient
                          : AppColorScheme.lightCtaGradient),
                  borderRadius: BorderRadius.circular(AppRadius.full),
                ),
                child: isLoading
                    ? SizedBox(
                        width: 16,
                        height: 16,
                        child: CircularProgressIndicator(
                          strokeWidth: 2,
                          color: isDark ? colorScheme.background : Colors.white,
                        ),
                      )
                    : Text(
                        isClaimed ? '已领取' : '立即领取',
                        style: TextStyle(
                          color: isClaimed
                              ? colorScheme.onSurfaceVariant
                              : (isDark ? colorScheme.background : Colors.white),
                          fontSize: 13,
                          fontWeight: FontWeight.w700,
                        ),
                      ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

/// 持仓部分
class _HoldingsSection extends StatelessWidget {
  final List<AccountTrade> holdings;

  const _HoldingsSection({required this.holdings});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Column(
      children: [
        Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Text(
              '我的持仓',
              style: TextStyle(
                color: colorScheme.onSurface,
                fontWeight: FontWeight.bold,
                fontSize: 18,
              ),
            ),
            TextButton(
              onPressed: () {},
              style: TextButton.styleFrom(
                foregroundColor: colorScheme.primary,
                padding: const EdgeInsets.symmetric(horizontal: 8),
              ),
              child: Row(
                children: [
                  Text('资产详情',
                      style: TextStyle(
                          fontWeight: FontWeight.bold, fontSize: 14)),
                  const SizedBox(width: 4),
                  Icon(LucideIcons.chevronRight,
                      size: 16, color: colorScheme.primary),
                ],
              ),
            ),
          ],
        ),
        SizedBox(height: AppSpacing.md),
        holdings.isEmpty ? const _EmptyHoldings() : _HoldingsList(holdings: holdings),
      ],
    );
  }
}

/// 空持仓
class _EmptyHoldings extends StatelessWidget {
  const _EmptyHoldings();

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Container(
      width: double.infinity,
      padding: EdgeInsets.symmetric(vertical: AppSpacing.xxl, horizontal: AppSpacing.lg),
      decoration: BoxDecoration(
        color: colorScheme.surfaceContainerLow.withOpacity(0.5),
        borderRadius: BorderRadius.circular(AppRadius.xxl),
        border: Border.all(color: colorScheme.outlineVariant.withOpacity(0.1)),
      ),
      child: Column(
        children: [
          Icon(LucideIcons.wallet, size: 48, color: colorScheme.onSurfaceVariant),
          SizedBox(height: AppSpacing.md),
          Text(
            '暂无持仓',
            style: TextStyle(
              color: colorScheme.onSurface,
              fontWeight: FontWeight.w600,
              fontSize: 16,
            ),
          ),
          SizedBox(height: AppSpacing.sm),
          Text(
            '快去交易吧~',
            style: TextStyle(
              color: colorScheme.onSurfaceVariant,
              fontSize: 14,
            ),
          ),
        ],
      ),
    );
  }
}

/// 持仓列表
class _HoldingsList extends StatelessWidget {
  final List<AccountTrade> holdings;

  const _HoldingsList({required this.holdings});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    final displayHoldings =
        holdings.length > 5 ? holdings.sublist(0, 5) : holdings;

    return Container(
      decoration: BoxDecoration(
        color: colorScheme.surface.withOpacity(0.5),
        borderRadius: BorderRadius.circular(AppRadius.xxl),
        border: Border.all(color: colorScheme.outlineVariant.withOpacity(0.1)),
      ),
      child: ListView.separated(
        shrinkWrap: true,
        physics: const NeverScrollableScrollPhysics(),
        padding: EdgeInsets.all(AppSpacing.md),
        itemCount: displayHoldings.length,
        separatorBuilder: (_, __) => Divider(
          color: colorScheme.outlineVariant.withOpacity(0.1),
          height: 1,
        ),
        itemBuilder: (context, index) =>
            _HoldingItem(holding: displayHoldings[index]),
      ),
    );
  }
}

/// 持仓项
class _HoldingItem extends StatelessWidget {
  final AccountTrade holding;

  const _HoldingItem({required this.holding});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    final isDark = Theme.of(context).brightness == Brightness.dark;

    return Padding(
      padding: EdgeInsets.symmetric(vertical: AppSpacing.sm + AppSpacing.xs),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Row(
            children: [
              CircleAvatar(
                radius: 18,
                backgroundColor: colorScheme.primary.withOpacity(0.1),
                child: Text(
                  holding.coinCode.substring(0, 1),
                  style: TextStyle(
                    color: colorScheme.primary,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
              SizedBox(width: AppSpacing.sm + AppSpacing.xs),
              Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(holding.coinCode,
                      style: TextStyle(
                        color: colorScheme.onSurface,
                        fontWeight: FontWeight.bold,
                        fontSize: 16,
                      )),
                  Text(holding.quantity,
                      style: TextStyle(
                        color: colorScheme.onSurfaceVariant,
                        fontSize: 12,
                      )),
                ],
              ),
            ],
          ),
          Column(
            crossAxisAlignment: CrossAxisAlignment.end,
            children: [
              Text('${holding.currentValue} USDT',
                  style: TextStyle(
                    color: colorScheme.onSurface,
                    fontWeight: FontWeight.w500,
                    fontSize: 14,
                  )),
              Text(holding.formattedProfitRate,
                  style: TextStyle(
                    color: holding.isProfit
                        ? AppColorScheme.getUpColor(isDark)
                        : AppColorScheme.down,
                    fontSize: 12,
                    fontWeight: FontWeight.w500,
                  )),
            ],
          ),
        ],
      ),
    );
  }
}

/// 信息行组件
class _InfoRow extends StatelessWidget {
  final String label;
  final String value;
  final bool isBold;

  const _InfoRow({required this.label, required this.value, this.isBold = false});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        Text(label,
            style: TextStyle(
              fontSize: 12,
              color: colorScheme.onSurfaceVariant,
            )),
        Text(value,
            style: GoogleFonts.spaceGrotesk(
              fontSize: 12,
              fontWeight: isBold ? FontWeight.bold : FontWeight.normal,
              color: colorScheme.onSurface,
            )),
      ],
    );
  }
}

/// 钱包地址卡片
class _WalletAddressCard extends StatelessWidget {
  final String address;
  final String network;

  const _WalletAddressCard({required this.address, required this.network});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Container(
      padding: EdgeInsets.all(AppSpacing.md),
      decoration: BoxDecoration(
        color: colorScheme.surfaceContainerHigh,
        borderRadius: BorderRadius.circular(AppRadius.md),
        border: Border.all(color: colorScheme.outlineVariant.withOpacity(0.3)),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Expanded(
                child: Text(
                  address,
                  style: TextStyle(
                    fontFamily: 'monospace',
                    fontSize: 12,
                    color: colorScheme.onSurface,
                  ),
                ),
              ),
              GestureDetector(
                onTap: () {
                  Clipboard.setData(ClipboardData(text: address));
                  ToastUtils.show('地址已复制到剪贴板');
                },
                child: Container(
                  padding: EdgeInsets.all(AppSpacing.xs),
                  decoration: BoxDecoration(
                    color: colorScheme.primary.withOpacity(0.1),
                    borderRadius: BorderRadius.circular(AppRadius.sm),
                  ),
                  child: Icon(LucideIcons.copy,
                      size: 16, color: colorScheme.primary),
                ),
              ),
            ],
          ),
          SizedBox(height: AppSpacing.sm),
          Text(
            '网络: $network',
            style: TextStyle(
              fontSize: 11,
              color: colorScheme.onSurfaceVariant,
            ),
          ),
        ],
      ),
    );
  }
}

/// 盈亏统计小卡片
class _ProfitStatCard extends StatelessWidget {
  final String label;
  final double? value;
  final Color upColor;
  final Color downColor;

  const _ProfitStatCard({
    required this.label,
    required this.value,
    required this.upColor,
    required this.downColor,
  });

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    final hasValue = value != null;
    final isProfit = (value ?? 0) >= 0;
    final color = hasValue ? (isProfit ? upColor : downColor) : colorScheme.onSurfaceVariant;

    return Container(
      padding: EdgeInsets.symmetric(horizontal: AppSpacing.md, vertical: AppSpacing.sm + 2),
      decoration: BoxDecoration(
        color: hasValue
            ? (isProfit ? upColor : downColor).withOpacity(0.06)
            : colorScheme.surfaceContainerHigh.withOpacity(0.5),
        borderRadius: BorderRadius.circular(AppRadius.lg),
        border: Border.all(
          color: hasValue
              ? (isProfit ? upColor : downColor).withOpacity(0.12)
              : colorScheme.outlineVariant.withOpacity(0.1),
        ),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(
                hasValue
                    ? (isProfit ? LucideIcons.trendingUp : LucideIcons.trendingDown)
                    : LucideIcons.minus,
                size: 11,
                color: color.withOpacity(0.7),
              ),
              SizedBox(width: 3),
              Text(
                label,
                style: TextStyle(
                  fontSize: 10,
                  color: color.withOpacity(0.8),
                  fontWeight: FontWeight.w500,
                ),
              ),
            ],
          ),
          SizedBox(height: AppSpacing.xs),
          Text(
            hasValue
                ? '${isProfit ? '+' : ''}${value!.toStringAsFixed(2)}'
                : '--',
            style: GoogleFonts.spaceGrotesk(
              fontSize: 15,
              fontWeight: FontWeight.bold,
              color: color,
            ),
          ),
        ],
      ),
    );
  }
}