修改工单流程页面，订单列表增加工单按钮

OrderSupportTicket/ViewModels/WorkOrderSummaryViewModel.cs

@@ -1,6 +1,12 @@
+using AllBase.Helper;
 using OrderSupportTicket.Models.Api;
+using OrderSupportTicket.Services;
 using System;
 using System.Globalization;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Media;
+using System.Windows.Threading;
 using WPFCommon.Models;
 
 namespace OrderSupportTicket.ViewModels;
@@ -21,6 +27,13 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
     private int _unreadCount;
     private bool _hasNewMessage;
     private string _version;
+    private string _productName;
+    private string _productImageUrl;
+    private decimal? _productAmount;
+    private ImageSource _productImage;
+    private int _productImageVersion;
+    private readonly Dispatcher _dispatcher =
+        System.Windows.Application.Current?.Dispatcher ?? Dispatcher.CurrentDispatcher;
 
     public WorkOrderSummaryViewModel(WorkOrderSummaryDto dto)
     {
@@ -35,7 +48,29 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
     public string AppId
     {
         get => _appId;
-        private set => SetValue(ref _appId, value);
+        private set
+        {
+            if (SetValue(ref _appId, value))
+                RaisePropertyChanged(nameof(ShopName));
+        }
+    }
+
+    /// <summary>
+    /// 工单所属店铺的显示名称。列表中不直接展示 APPID。
+    /// </summary>
+    public string ShopName
+    {
+        get
+        {
+            var shop = GlobalConfig.ShopLoginList?.FirstOrDefault(s =>
+                string.Equals(s.ShopId, AppId, StringComparison.Ordinal)
+                || string.Equals(s.AppKey, AppId, StringComparison.Ordinal));
+            if (!string.IsNullOrWhiteSpace(shop?.ShopAccount))
+                return shop.ShopAccount;
+            if (!string.IsNullOrWhiteSpace(shop?.CompanyName))
+                return shop.CompanyName;
+            return "未知店铺";
+        }
     }
 
     /// <summary>
@@ -144,6 +179,66 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
         private set => SetValue(ref _version, value);
     }
 
+    /// <summary>
+    /// 商品名称，优先来自当前订单列表或本地工单缓存。
+    /// </summary>
+    public string ProductName
+    {
+        get => _productName;
+        private set
+        {
+            if (SetValue(ref _productName, value))
+                RaisePropertyChanged(nameof(ProductNameText));
+        }
+    }
+
+    /// <summary>
+    /// 商品名称的展示文本，尚未同步到商品信息时给出提示。
+    /// </summary>
+    public string ProductNameText =>
+        string.IsNullOrWhiteSpace(ProductName) ? "商品信息待同步" : ProductName;
+
+    /// <summary>
+    /// 商品金额，单位元；旧缓存没有金额时为 null。
+    /// </summary>
+    public decimal? ProductAmount
+    {
+        get => _productAmount;
+        private set
+        {
+            if (SetValue(ref _productAmount, value))
+                RaisePropertyChanged(nameof(ProductAmountText));
+        }
+    }
+
+    /// <summary>
+    /// 商品金额展示文本。
+    /// </summary>
+    public string ProductAmountText =>
+        ProductAmount.HasValue
+            ? "¥ " + ProductAmount.Value.ToString(
+                "N2",
+                CultureInfo.GetCultureInfo("zh-CN"))
+            : string.Empty;
+
+    /// <summary>
+    /// 商品缩略图地址。
+    /// </summary>
+    public string ProductImageUrl
+    {
+        get => _productImageUrl;
+        private set => SetValue(ref _productImageUrl, value);
+    }
+
+    /// <summary>
+    /// 商品缩略图，加载完成前为空。
+    /// </summary>
+    public ImageSource ProductImage
+    {
+        get => _productImage;
+        private set => SetValue(ref _productImage, value);
+    }
+
     /// <summary>
     /// 用于合并工单的 APPID 与订单号组合键。
     /// </summary>
@@ -230,6 +325,30 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
             UnreadCount = 1;
     }
 
+    /// <summary>
+    /// 合并商品信息。空值不会覆盖已有数据，便于先应用缓存、再应用最新的订单信息。
+    /// </summary>
+    public void ApplyProductInfo(
+        string productName,
+        string imageUrl,
+        decimal? amount)
+    {
+        if (!string.IsNullOrWhiteSpace(productName))
+            ProductName = productName.Trim();
+        if (amount.HasValue)
+            ProductAmount = amount;
+
+        if (string.IsNullOrWhiteSpace(imageUrl))
+            return;
+
+        var normalizedUrl = imageUrl.Trim();
+        if (string.Equals(ProductImageUrl, normalizedUrl, StringComparison.Ordinal))
+            return;
+
+        ProductImageUrl = normalizedUrl;
+        _ = LoadProductImageAsync(normalizedUrl);
+    }
+
     private void Apply(WorkOrderSummaryDto dto)
     {
         AppId = dto.AppId;
@@ -246,6 +365,35 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
         Version = dto.Version;
     }
 
+    private async Task LoadProductImageAsync(string url)
+    {
+        try
+        {
+            var version = ++_productImageVersion;
+            ProductImage = null;
+
+            var image = await ProductImageLoader.LoadAsync(url);
+            if (image == null || version != _productImageVersion)
+                return;
+
+            if (_dispatcher.CheckAccess())
+            {
+                ProductImage = image;
+                return;
+            }
+
+            await _dispatcher.InvokeAsync(() =>
+            {
+                if (version == _productImageVersion)
+                    ProductImage = image;
+            });
+        }
+        catch
+        {
+            // 商品图加载失败不影响工单列表展示。
+        }
+    }
+
     private bool IsAtLeastCurrentVersion(string incomingVersion)
     {
         if (string.IsNullOrWhiteSpace(incomingVersion))