import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import 'package:intl/intl.dart';

import '../../../core/l10n/app_localizations.dart';
import '../../../core/theme/app_colors.dart';
import '../../../data/repositories/broker_repository.dart';

// ── State ─────────────────────────────────────────────────

class _TeamDetailState {
  final DateTime month;
  final String filter; // 'all' | 'month' | 'week' | 'day'
  _TeamDetailState({required this.month, required this.filter});
  _TeamDetailState copyWith({DateTime? month, String? filter}) =>
      _TeamDetailState(month: month ?? this.month, filter: filter ?? this.filter);
}

// ── Screen ───────────────────────────────────────────────

class TeamDetailScreen extends ConsumerStatefulWidget {
  const TeamDetailScreen({super.key});

  @override
  ConsumerState<TeamDetailScreen> createState() => _TeamDetailScreenState();
}

class _TeamDetailScreenState extends ConsumerState<TeamDetailScreen> {
  _TeamDetailState _state = _TeamDetailState(month: DateTime.now(), filter: 'all');
  Map<String, dynamic> _data = {};
  bool _loading = false;
  String? _error;

  @override
  void initState() {
    super.initState();
    _load();
  }

  /// 对应安卓 requestAgentAwards(endDate) → GET agent/stat?endDate=
  Future<void> _load() async {
    setState(() { _loading = true; _error = null; });
    try {
      final endDate = _buildEndDate();
      final data = await ref.read(brokerRepositoryProvider).getTotalAward(endDate: endDate);
      if (mounted) setState(() { _data = data; _loading = false; });
    } catch (e) {
      if (mounted) setState(() { _error = e.toString(); _loading = false; });
    }
  }

  /// 对应安卓各个 load 方法传递的 endDate
  String? _buildEndDate() {
    final fmt = DateFormat('yyyy-MM-dd');
    final now = DateTime.now();
    switch (_state.filter) {
      case 'day':   // loadToday
        return fmt.format(now);
      case 'week':  // loadWeekBefore
        return fmt.format(now.subtract(const Duration(days: 7)));
      case 'month': // loadCurrentMonth → "${month}-01"
        return '${_state.month.year}-${_state.month.month.toString().padLeft(2, '0')}-01';
      default:      // loadAllDate → null
        return null;
    }
  }

  Future<void> _pickMonth() async {
    final now = DateTime.now();
    final picked = await showDatePicker(
      context: context,
      initialDate: _state.month,
      firstDate: DateTime(now.year - 2),
      lastDate: now,
      initialDatePickerMode: DatePickerMode.year,
    );
    if (picked != null && mounted) {
      setState(() => _state = _state.copyWith(
        month: DateTime(picked.year, picked.month),
        filter: 'month',
      ));
      _load();
    }
  }

  void _setFilter(String f) {
    setState(() => _state = _state.copyWith(filter: f));
    _load();
  }

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

    return Scaffold(
      backgroundColor: cs.surface,
      appBar: AppBar(
        backgroundColor: cs.surface,
        elevation: 0,
        leading: IconButton(
          icon: const Icon(Icons.arrow_back_ios, size: 18),
          onPressed: () => context.pop(),
        ),
        title: Text(AppLocalizations.of(context)!.teamDetail, style: TextStyle(color: cs.onSurface, fontSize: 17, fontWeight: FontWeight.w600)),
        centerTitle: true,
      ),
      body: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // ── 筛选栏：三个独立带边框按钮 ───────────────
            Row(children: [
              // 月份选择
              Expanded(
                flex: 5,
                child: GestureDetector(
                  onTap: _pickMonth,
                  child: Container(
                    height: 38,
                    decoration: BoxDecoration(
                      color: _state.filter == 'month' ? AppColors.brand : Colors.transparent,
                      border: Border.all(color: AppColors.lightBorder, width: 1),
                      borderRadius: BorderRadius.circular(6),
                    ),
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        Text(
                          '${_state.month.year}-${_state.month.month.toString().padLeft(2, '0')}',
                          style: TextStyle(
                            fontSize: 13,
                            fontWeight: _state.filter == 'month' ? FontWeight.w600 : FontWeight.normal,
                            color: _state.filter == 'month' ? Colors.black : cs.onSurface,
                          ),
                        ),
                        const SizedBox(width: 2),
                        Icon(Icons.arrow_drop_down, size: 18,
                            color: _state.filter == 'month' ? Colors.black : cs.onSurface.withAlpha(160)),
                      ],
                    ),
                  ),
                ),
              ),
              const SizedBox(width: 8),
              // 一周内
              Expanded(
                flex: 3,
                child: GestureDetector(
                  onTap: () => _setFilter('week'),
                  child: Container(
                    height: 38,
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      color: _state.filter == 'week' ? AppColors.brand : Colors.transparent,
                      border: Border.all(color: AppColors.lightBorder, width: 1),
                      borderRadius: BorderRadius.circular(6),
                    ),
                    child: Text(
                      AppLocalizations.of(context)!.withinOneWeek,
                      style: TextStyle(
                        fontSize: 13,
                        fontWeight: _state.filter == 'week' ? FontWeight.w600 : FontWeight.normal,
                        color: _state.filter == 'week' ? Colors.black : cs.onSurface,
                      ),
                    ),
                  ),
                ),
              ),
              const SizedBox(width: 8),
              // 当日
              Expanded(
                flex: 3,
                child: GestureDetector(
                  onTap: () => _setFilter('day'),
                  child: Container(
                    height: 38,
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      color: _state.filter == 'day' ? AppColors.brand : Colors.transparent,
                      border: Border.all(color: AppColors.lightBorder, width: 1),
                      borderRadius: BorderRadius.circular(6),
                    ),
                    child: Text(
                      AppLocalizations.of(context)!.today,
                      style: TextStyle(
                        fontSize: 13,
                        fontWeight: _state.filter == 'day' ? FontWeight.w600 : FontWeight.normal,
                        color: _state.filter == 'day' ? Colors.black : cs.onSurface,
                      ),
                    ),
                  ),
                ),
              ),
            ]),
            const SizedBox(height: 24),

            // ── 内容区 ────────────────────────────────
            if (_loading)
              const Center(child: CircularProgressIndicator())
            else if (_error != null)
              Center(child: Text('${AppLocalizations.of(context)!.loadFailed}: $_error', style: TextStyle(color: cs.error)))
            else ...[
              Text(AppLocalizations.of(context)!.teamTotalAssets, style: TextStyle(fontSize: 13, color: cs.onSurface.withAlpha(120))),
              const SizedBox(height: 8),
              Row(crossAxisAlignment: CrossAxisAlignment.baseline, textBaseline: TextBaseline.alphabetic, children: [
                Text(
                  _formatAmount(_data['totalBalance']),
                  style: TextStyle(fontSize: 28, fontWeight: FontWeight.w700, color: cs.onSurface),
                ),
                const SizedBox(width: 6),
                Text('USDT', style: TextStyle(fontSize: 14, color: cs.onSurface.withAlpha(160))),
              ]),
            ],
          ],
        ),
      ),
    );
  }

  String _formatAmount(dynamic v) {
    if (v == null) return '0.00';
    final d = double.tryParse(v.toString()) ?? 0.0;
    if (d >= 1000) {
      final intPart = d.truncate().toString();
      final decPart = d.toStringAsFixed(2).split('.')[1];
      final buf = StringBuffer();
      for (int i = 0; i < intPart.length; i++) {
        if (i > 0 && (intPart.length - i) % 3 == 0) buf.write(',');
        buf.write(intPart[i]);
      }
      return '${buf.toString()}.$decPart';
    }
    return d.toStringAsFixed(2);
  }
}