feat: 添加每周第一天设置选项

ExtraIsland/Components/ProfileInformation/ProfileInformation.axaml.cs

@@ -55,14 +55,32 @@ void LessonsServiceOnPostMainTimerTicked(object? sender,EventArgs e) {
     int GetWeekInSemester(DateTime? current = null) {
         current ??= _exactTimeService.GetCurrentLocalDateTime();
         DateTime orientation = (DateTime)((dynamic)AppBase.Current).Settings.SingleWeekStartTime;
-        int oriWeek = orientation.DayOfWeek == DayOfWeek.Sunday ? 6 : Convert.ToInt32(orientation.DayOfWeek) - 1;
 
-        //regulate
-        DateTime startMonday = orientation.AddDays(-oriWeek);
-        int lastDelta = current.Value.DayOfWeek != DayOfWeek.Sunday ? 7 - Convert.ToInt32(current.Value.DayOfWeek) : 0;
-        DateTime lastEnd = current.Value.AddDays(lastDelta);
+        // 计算学期开始时间所在周的第一天（根据配置）
+        DayOfWeek firstDayOfWeek = ConvertToDayOfWeek(Settings.FirstDayOfWeek);
 
-        TimeSpan totalWeekDelta = lastEnd - startMonday;
+        // 计算从学期开始日期到本周第一天的天数差
+        int daysToStartOfWeek = ((int)orientation.DayOfWeek - (int)firstDayOfWeek + 7) % 7;
+        DateTime startDay = orientation.AddDays(-daysToStartOfWeek);
+
+        // 计算当前日期所在周的最后一天
+        int daysToEndOfWeek = ((int)firstDayOfWeek - (int)current.Value.DayOfWeek + 6) % 7;
+        DateTime lastEnd = current.Value.AddDays(daysToEndOfWeek);
+
+        TimeSpan totalWeekDelta = lastEnd - startDay;
         return Convert.ToInt32(totalWeekDelta.Days + 1) / 7;
     }
+
+    DayOfWeek ConvertToDayOfWeek(FirstDayOfWeek firstDayOfWeek) {
+        return firstDayOfWeek switch {
+            FirstDayOfWeek.Sunday => DayOfWeek.Sunday,
+            FirstDayOfWeek.Monday => DayOfWeek.Monday,
+            FirstDayOfWeek.Tuesday => DayOfWeek.Tuesday,
+            FirstDayOfWeek.Wednesday => DayOfWeek.Wednesday,
+            FirstDayOfWeek.Thursday => DayOfWeek.Thursday,
+            FirstDayOfWeek.Friday => DayOfWeek.Friday,
+            FirstDayOfWeek.Saturday => DayOfWeek.Saturday,
+            _ => DayOfWeek.Sunday
+        };
+    }
 }

ExtraIsland/Components/ProfileInformation/ProfileInformationConfig.cs

@@ -10,11 +10,31 @@ public partial class ProfileInformationConfig : ObservableObject {
 
     [ObservableProperty]
     bool _isShortModeEnabled;
+
+    [ObservableProperty]
+    FirstDayOfWeek _firstDayOfWeek = FirstDayOfWeek.Sunday;
 }
 
 public enum ProfileInformationType {
     [Description("周数")]
     WeekOfSemester,
     [Description("单双周")]
     ParityOfWeek
+}
+
+public enum FirstDayOfWeek {
+    [Description("周日")]
+    Sunday,
+    [Description("周一")]
+    Monday,
+    [Description("周二")]
+    Tuesday,
+    [Description("周三")]
+    Wednesday,
+    [Description("周四")]
+    Thursday,
+    [Description("周五")]
+    Friday,
+    [Description("周六")]
+    Saturday
 }

ExtraIsland/Components/ProfileInformation/ProfileInformationSettings.axaml

@@ -35,6 +35,22 @@
                     <ToggleSwitch IsChecked="{Binding Settings.IsShortModeEnabled, Mode=TwoWay}"/>
                 </controls:SettingsExpander.Footer>
             </controls:SettingsExpander>
+            <controls:SettingsExpander IconSource="{ci:FluentIconSource &#xE787;}"
+                                       Header="每周第一天"
+                                       Description="设置每周的第一天是周几">
+                <controls:SettingsExpander.Footer>
+                    <ComboBox
+                        MinWidth="20"
+                        SelectedItem="{Binding Settings.FirstDayOfWeek, Mode=TwoWay}"
+                        ItemsSource="{Binding FirstDayOfWeekOptions}">
+                        <ComboBox.ItemTemplate>
+                            <DataTemplate>
+                                <TextBlock Text="{Binding Converter={StaticResource EnumDescriptionConverter}}" />
+                            </DataTemplate>
+                        </ComboBox.ItemTemplate>
+                    </ComboBox>
+                </controls:SettingsExpander.Footer>
+            </controls:SettingsExpander>
             <Label HorizontalAlignment="Center" 
                    Foreground="{DynamicResource MaterialDesignBodyLight}">
                 Added by ExtraIsland

ExtraIsland/Components/ProfileInformation/ProfileInformationSettings.axaml.cs

@@ -11,4 +11,14 @@ public ProfileInformationSettings() {
         ProfileInformationType.WeekOfSemester,
         ProfileInformationType.ParityOfWeek
     ];
+
+    public List<FirstDayOfWeek> FirstDayOfWeekOptions { get; } = [
+        FirstDayOfWeek.Sunday,
+        FirstDayOfWeek.Monday,
+        FirstDayOfWeek.Tuesday,
+        FirstDayOfWeek.Wednesday,
+        FirstDayOfWeek.Thursday,
+        FirstDayOfWeek.Friday,
+        FirstDayOfWeek.Saturday
+    ];
 }