UI更新
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../core/network/api_exception.dart';
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import '../../models/bill.dart';
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import '../../models/statistics_response.dart';
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import '../../providers/bill_provider.dart';
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import '../../providers/bill_refresh.dart';
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import '../../providers/budget_provider.dart';
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import '../../utils/amount_util.dart';
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import '../../utils/bill_grouping.dart';
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import '../../utils/date_util.dart';
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import '../../widgets/state_views.dart';
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import 'bill_edit_page.dart';
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import 'bill_statistics_page.dart';
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import 'widgets/bill_group_card.dart';
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import 'widgets/budget_card.dart';
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import 'widgets/month_switcher.dart';
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/// 记账模块的首页：月份切换 + 本月汇总 + 预算环 + 按日期分组的账单列表。
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///
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/// 这个页面同时承担两个入口角色：
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/// · 从首页仪表盘的「记账」卡片进来（会被 push，这时有返回箭头）
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/// · 直接 push 进来时底部没有导航栏，所以底部留白要按情况给
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class BillHomePage extends ConsumerWidget {
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const BillHomePage({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final anchor = ref.watch(monthAnchorProvider);
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final billsAsync = ref.watch(billsProvider(anchor));
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final statsAsync = ref.watch(monthlyStatisticsProvider(anchor));
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final budgetAsync = ref.watch(budgetProvider);
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final isCurrentMonth = isSameMonth(anchor, DateTime.now());
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return Scaffold(
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body: Container(
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width: double.infinity,
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height: double.infinity,
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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colors: [Color(0xFFFFE5CC), Color(0xFFFFD4A8), Color(0xFFFFC08A)],
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),
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),
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child: SafeArea(
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child: RefreshIndicator(
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color: const Color(0xFFC8956E),
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onRefresh: () => _onRefresh(ref),
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child: ListView(
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// 内容不足一屏时也要能下拉刷新
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physics: const AlwaysScrollableScrollPhysics(),
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padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
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children: [
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_header(context),
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const SizedBox(height: 14),
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_summaryCard(anchor, statsAsync),
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const SizedBox(height: 12),
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// 后端预算接口只提供当月数据，历史月份不展示，避免串数据
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if (isCurrentMonth)
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BudgetCard(budget: budgetAsync)
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else
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_budgetUnavailableTip(),
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const SizedBox(height: 16),
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..._billSection(context, ref, billsAsync),
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// 被 push 进来时底部没有导航栏，就不用留出避让高度
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SizedBox(height: Navigator.of(context).canPop() ? 24 : 90),
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],
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),
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),
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),
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),
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);
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}
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// ---- 顶部：返回 + 标题 + 统计入口 / 月份切换 ----
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//
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// 为什么要分两行：月份切换条本身就有 ~206px 宽，再并上返回箭头(34)、
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// 标题(80)、统计图标(34)，一行要约 364px —— 而 393 宽的常规手机只有
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// 361px 可用，实测溢出 32px。分两行之后每行都很宽松。
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Widget _header(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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if (Navigator.of(context).canPop()) ...[
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_iconButton(
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icon: Icons.arrow_back,
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tooltip: '返回',
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onTap: () => Navigator.of(context).pop(),
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),
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const SizedBox(width: 6),
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],
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const Text(
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'我的账单',
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style: TextStyle(
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fontSize: 20,
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fontWeight: FontWeight.bold,
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color: Color(0xFF5D4037),
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),
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),
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const Spacer(),
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_iconButton(
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icon: Icons.bar_chart,
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tooltip: '统计分析',
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onTap: () => Navigator.of(context).push(
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MaterialPageRoute(builder: (_) => const BillStatisticsPage()),
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),
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),
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],
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),
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const SizedBox(height: 10),
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const MonthSwitcher(),
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],
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);
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}
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Widget _iconButton({
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required IconData icon,
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required String tooltip,
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required VoidCallback onTap,
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}) {
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return Tooltip(
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message: tooltip,
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child: InkWell(
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onTap: onTap,
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borderRadius: BorderRadius.circular(20),
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child: Padding(
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padding: const EdgeInsets.all(6),
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child: Icon(icon, size: 22, color: const Color(0xFF5D4037)),
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),
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),
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);
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}
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// ---- 本月汇总 ----
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Widget _summaryCard(DateTime anchor, AsyncValue<StatisticsResponse> statsAsync) {
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final stats = statsAsync.value;
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return Container(
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padding: const EdgeInsets.symmetric(vertical: 16),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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),
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child: Row(
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children: [
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_summaryItem('${anchor.month}月收入', stats?.totalIncome, const Color(0xFF19BE6B)),
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_vDivider(),
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_summaryItem('${anchor.month}月支出', stats?.totalExpense, const Color(0xFFFA3534)),
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_vDivider(),
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_summaryItem('结余', stats?.balance, const Color(0xFF5D4037)),
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],
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),
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);
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}
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Widget _summaryItem(String label, double? amount, Color color) {
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return Expanded(
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child: Column(
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children: [
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Text(label, style: const TextStyle(fontSize: 12, color: Color(0xFF8D6E63))),
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const SizedBox(height: 6),
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Text(
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// 统计未加载完时显示占位，避免整块转圈导致头部抖动
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amount == null ? '--' : '¥${formatAmount(amount)}',
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style: TextStyle(fontSize: 15, fontWeight: FontWeight.bold, color: color),
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),
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],
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),
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);
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}
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Widget _vDivider() => Container(width: 1, height: 28, color: const Color(0xFFF0E6D8));
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Widget _budgetUnavailableTip() {
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return Container(
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padding: const EdgeInsets.symmetric(vertical: 14),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.7),
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borderRadius: BorderRadius.circular(16),
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),
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child: const Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text('🎯 ', style: TextStyle(fontSize: 14)),
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Text(
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'仅可查看本月预算',
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style: TextStyle(fontSize: 13, color: Color(0xFF8D6E63)),
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),
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],
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),
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);
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}
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// ---- 账单列表 ----
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List<Widget> _billSection(
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BuildContext context,
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WidgetRef ref,
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AsyncValue<List<Bill>> billsAsync,
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) {
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return [
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billsAsync.when(
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loading: () => const LoadingView(),
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error: (e, _) => ErrorView(
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message: asApiException(e).message,
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onRetry: () => ref.invalidate(billsProvider),
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),
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data: (bills) {
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if (bills.isEmpty) {
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return const EmptyView(
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title: '本月暂无账单记录',
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tip: '点击底部「记录」添加，或用 OCR 识别小票',
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);
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}
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return Column(
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children: groupBillsByDate(bills)
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.map((group) => BillGroupCard(
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group: group,
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onTapBill: (bill) => Navigator.of(context).push(
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MaterialPageRoute(builder: (_) => BillEditPage(billId: bill.id)),
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),
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))
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.toList(),
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);
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},
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),
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];
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}
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// ---- 下拉刷新 ----
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Future<void> _onRefresh(WidgetRef ref) async {
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final anchor = ref.read(monthAnchorProvider);
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invalidateBillDataFromWidget(ref);
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// 等三个请求结束再收起下拉动画；异常吞掉，由各自的 AsyncValue 渲染错误态
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await Future.wait<void>([
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_silent(ref.read(billsProvider(anchor).future)),
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_silent(ref.read(monthlyStatisticsProvider(anchor).future)),
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_silent(ref.read(budgetProvider.future)),
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]);
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}
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Future<void> _silent(Future<Object?> future) =>
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future.then<void>((_) {}, onError: (_, _) {});
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}
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