From ef5ac2bf943b078dd25d511bd4b8f7ddab940e35 Mon Sep 17 00:00:00 2001
From: hailin <hailin.zhao@gdzx.xyz>
Date: Wed, 4 Feb 2026 21:17:10 -0800
Subject: [PATCH] =?UTF-8?q?fix(mining-app):=20=E4=BB=B7=E6=A0=BC=E5=88=B7?=
 =?UTF-8?q?=E6=96=B0=E5=80=92=E8=AE=A1=E6=97=B6=E4=B8=8E=E5=90=8E=E7=AB=AF?=
 =?UTF-8?q?=E9=94=80=E6=AF=81=E8=B0=83=E5=BA=A6=E5=99=A8=E5=90=8C=E6=AD=A5?=
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- 倒计时不再从页面打开时任意起点开始
- 自动计算距下一个整分钟第3秒的剩余秒数作为初始值
  （销毁在每分钟第0秒执行，留3秒余量等数据库写完）
- 倒计时归零时通过 ref.invalidate 主动刷新价格数据
- 确保每次刷新都能拿到最新的销毁后价格

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 .../lib/presentation/pages/trading/trading_page.dart     | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart b/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
index 41da2b50..d7d035e7 100644
--- a/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
+++ b/frontend/mining-app/lib/presentation/pages/trading/trading_page.dart
@@ -64,10 +64,17 @@ class _TradingPageState extends ConsumerState<TradingPage> {
     WidgetsBinding.instance.addPostFrameCallback((_) {
       ref.read(klinesNotifierProvider.notifier).loadKlines(_timeRanges[_selectedTimeRange]);
     });
-    // 启动价格刷新倒计时（每秒递减，到0时重置为60）
+    // 与后端销毁调度器同步：销毁在每分钟第0秒执行，前端在第3秒刷新
+    // 计算距离下一个整分钟第3秒的秒数
+    final now = DateTime.now();
+    final secsIntoMinute = now.second;
+    // 目标：每分钟的第3秒刷新（给销毁+写库留3秒余量）
+    _countdown = secsIntoMinute < 3 ? (3 - secsIntoMinute) : (63 - secsIntoMinute);
     _countdownTimer = Timer.periodic(const Duration(seconds: 1), (_) {
       setState(() {
         if (_countdown <= 1) {
+          // 倒计时归零，强制刷新价格数据
+          ref.invalidate(currentPriceProvider);
           _countdown = 60;
         } else {
           _countdown--;