feat:增加睡眠记录

lib/utils/record_utils.dart

@@ -0,0 +1,55 @@
+import 'package:fitnote/models/health.dart';
+import 'package:flutter/material.dart';
+
+bool checkHasRecordValue(HealthRecord record, RecordType type) {
+  switch (type) {
+    case RecordType.weight:
+      return record.weight != 0;
+    case RecordType.sport:
+      return record.sportProject != '';
+    case RecordType.sleep:
+      return record.sleepStartTime != '';
+  }
+}
+
+// 将字符串时间转换为 TimeOfDay
+TimeOfDay parseTime(String timeString) {
+  if (timeString.isEmpty) {
+    return TimeOfDay.now();
+  }
+  try {
+    final parts = timeString.split(':');
+    return TimeOfDay(hour: int.parse(parts[0]), minute: int.parse(parts[1]));
+  } catch (e) {
+    return TimeOfDay.now();
+  }
+}
+
+// 将 TimeOfDay 格式化为字符串 (HH:mm)
+String formatTime(TimeOfDay time) {
+  return '${time.hour.toString().padLeft(2, '0')}:${time.minute.toString().padLeft(2, '0')}';
+}
+
+// 计算睡眠时长
+String calculateDuration(String startTime, String endTime) {
+  try {
+    final start = parseTime(startTime);
+    final end = parseTime(endTime);
+
+    int startMinutes = start.hour * 60 + start.minute;
+    int endMinutes = end.hour * 60 + end.minute;
+
+    // 处理跨天情况（如果结束时间小于开始时间，认为是第二天）
+    if (endMinutes < startMinutes) {
+      endMinutes += 24 * 60; // 加上一天的分钟数
+    }
+
+    int durationMinutes = endMinutes - startMinutes;
+    int hours = durationMinutes ~/ 60;
+    int minutes = durationMinutes % 60;
+
+    return '${hours}小时${minutes}分钟';
+  } catch (e) {
+    return '计算错误';
+  }
+}