fix(P3): 修复倒计时边界问题（闰年、月末）

src/components/anniversary/AnniversaryList.tsx

@@ -52,7 +52,7 @@ export function AnniversaryList({ events, onEventClick, onAddClick }: Anniversar
         title: h.name,
         date: h.date.toISOString(),
         is_holiday: true,
-        is_lunar: false,
+        is_lunar: h.isLunar,
         repeat_type: 'yearly',
         type: 'anniversary',
         is_builtin: true,

src/utils/countdown.ts

@@ -10,6 +10,18 @@ export interface CountdownResult {
   isPast: boolean;
 }
 
+/**
+ * 安全地创建日期，处理月末边界情况
+ */
+function safeCreateDate(year: number, month: number, day: number): Date {
+  const date = new Date(year, month, day);
+  // 如果日期溢出（如下个月），自动调整到月末
+  if (date.getMonth() !== month % 12) {
+    date.setMonth(month + 1, 0);
+  }
+  return date;
+}
+
 /**
  * 计算纪念日的倒计时
  * 考虑重复规则，计算下一个 occurrence 的倒计时
@@ -21,36 +33,38 @@ export function calculateCountdown(
 ): CountdownResult {
   const now = new Date();
   const today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
-  let targetDate = new Date(dateStr);
+  let targetDate: Date;
   let isPast = false;
 
-  // 如果是农历日期，转换为公历
+  // 解析日期字符串
+  // 格式假设为 ISO 格式 "YYYY-MM-DD" 或完整的 ISO datetime
+  const dateParts = dateStr.split('T')[0].split('-').map(Number);
+  const originalYear = dateParts[0];
+  const originalMonth = dateParts[1] - 1; // JavaScript月份从0开始
+  const originalDay = dateParts[2];
+
   if (isLunar) {
-    const lunarDate = Lunar.fromYmd(
-      targetDate.getFullYear(),
-      targetDate.getMonth() + 1,
-      targetDate.getDate()
-    );
+    // 农历日期：直接用原始农历年/月/日创建农历对象
+    const lunarDate = Lunar.fromYmd(originalYear, originalMonth + 1, originalDay);
     const solar = lunarDate.getSolar();
     targetDate = new Date(solar.getYear(), solar.getMonth() - 1, solar.getDay());
+  } else {
+    // 公历日期
+    targetDate = new Date(originalYear, originalMonth, originalDay);
   }
 
   // 计算下一个 occurrence
   if (repeatType === 'yearly') {
     // 年度重复：找到今年或明年的对应日期
-    const thisYearTarget = new Date(today.getFullYear(), targetDate.getMonth(), targetDate.getDate());
-    if (thisYearTarget >= today) {
-      targetDate = thisYearTarget;
-    } else {
-      targetDate = new Date(today.getFullYear() + 1, targetDate.getMonth(), targetDate.getDate());
+    targetDate = safeCreateDate(today.getFullYear(), targetDate.getMonth(), targetDate.getDate());
+    if (targetDate < today) {
+      targetDate = safeCreateDate(today.getFullYear() + 1, targetDate.getMonth(), targetDate.getDate());
     }
   } else if (repeatType === 'monthly') {
     // 月度重复：找到本月或下月的对应日期
-    const thisMonthTarget = new Date(today.getFullYear(), today.getMonth(), targetDate.getDate());
-    if (thisMonthTarget >= today) {
-      targetDate = thisMonthTarget;
-    } else {
-      targetDate = new Date(today.getFullYear(), today.getMonth() + 1, targetDate.getDate());
+    targetDate = safeCreateDate(today.getFullYear(), today.getMonth(), targetDate.getDate());
+    if (targetDate < today) {
+      targetDate = safeCreateDate(today.getFullYear(), today.getMonth() + 1, targetDate.getDate());
     }
   } else {
     // 不重复
@@ -67,13 +81,14 @@ export function calculateCountdown(
     isPast = true;
   }
 
-  const days = Math.max(0, Math.floor(diff / (1000 * 60 * 60 * 24)));
-  const hours = Math.max(0, Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)));
-  const minutes = Math.max(0, Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60)));
-  const seconds = Math.max(0, Math.floor((diff % (1000 * 60)) / 1000));
+  const absDiff = Math.abs(diff);
+  const days = Math.floor(absDiff / (1000 * 60 * 60 * 24));
+  const hours = Math.floor((absDiff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
+  const minutes = Math.floor((absDiff % (1000 * 60 * 60)) / (1000 * 60));
+  const seconds = Math.floor((absDiff % (1000 * 60)) / 1000);
 
   return {
-    days,
+    days: isPast ? -days : days,
     hours,
     minutes,
     seconds,
@@ -99,7 +114,11 @@ export function formatCountdown(countdown: CountdownResult): string {
     return `${countdown.days}天`;
   }
 
-  return `${countdown.hours}时${countdown.minutes}分`;
+  if (countdown.hours > 0) {
+    return `${countdown.hours}时${countdown.minutes}分`;
+  }
+
+  return `${countdown.minutes}分${countdown.seconds}秒`;
 }
 
 /**
@@ -150,3 +169,27 @@ export function getFriendlyDateDescription(
 
   return `${month}月${day}日`;
 }
+
+/**
+ * 获取农历日期的公历日期
+ */
+export function getSolarFromLunar(lunarMonth: number, lunarDay: number, year?: number): Date {
+  const targetYear = year || new Date().getFullYear();
+  const lunar = Lunar.fromYmd(targetYear, lunarMonth, lunarDay);
+  const solar = lunar.getSolar();
+  return new Date(solar.getYear(), solar.getMonth() - 1, solar.getDay());
+}
+
+/**
+ * 获取公历日期的农历日期
+ */
+export function getLunarFromSolar(solarDate: Date): { month: number; day: number; monthInChinese: string; dayInChinese: string } {
+  const solar = Solar.fromYmd(solarDate.getFullYear(), solarDate.getMonth() + 1, solarDate.getDate());
+  const lunar = solar.getLunar();
+  return {
+    month: lunar.getMonth(),
+    day: lunar.getDay(),
+    monthInChinese: lunar.getMonthInChinese(),
+    dayInChinese: lunar.getDayInChinese(),
+  };
+}

tmpclaude-05e0-cwd

@@ -0,0 +1 @@
+/e/qia/client