修改代码

Source/Store.Management.Framework/Services/StatusBarService.cs

@@ -0,0 +1,44 @@
+using MAX.Common.WPF.Helpers;
+using MAX.Core.DependencyInjection;
+using Prism.Mvvm;
+
+namespace Store.Management.Framework.Services;
+
+public enum StatusLevel
+{
+    Info,
+    Success,
+    Warning,
+    Error
+}
+
+public sealed record StatusBarMessage(string Text, StatusLevel Level, int? Progress);
+
+/// <summary>各页面共享主窗口底部的最新状态。</summary>
+public interface IStatusBarService
+{
+    StatusBarMessage Current { get; }
+
+    /// <summary>发布一条状态。进度范围为 0 到 100，省略时隐藏进度条。</summary>
+    void Report(string text, StatusLevel level = StatusLevel.Info, int? progress = null);
+}
+
+internal sealed class StatusBarService : BindableBase, IStatusBarService, ISingletonDependency
+{
+    private StatusBarMessage _current = new("就绪", StatusLevel.Info, null);
+    public StatusBarMessage Current
+    {
+        get => _current;
+        private set => SetProperty(ref _current, value);
+    }
+
+    public void Report(string text, StatusLevel level = StatusLevel.Info, int? progress = null)
+    {
+        ArgumentNullException.ThrowIfNull(text);
+        if (progress is < 0 or > 100)
+        {
+            throw new ArgumentOutOfRangeException(nameof(progress), "进度必须在 0 到 100 之间。");
+        }
+        DispatcherHelper.RunInDispatcher(() => Current = new StatusBarMessage(text, level, progress));
+    }
+}