服装零售订单管理核心功能：多渠道订单聚合（门店 / 电商 / 直播）怎么实现？

// 定义统一的订单数据模型
public class UnifiedOrder
{
    public string OrderId { get; set; }
    public string ChannelSource { get; set; } // 渠道来源：Store, ECommerce, LiveStream
    public DateTime OrderTime { get; set; }
    public List Items { get; set; }
    // 其他统一字段...
}

// 电商平台订单适配器示例
public class ECommerceOrderAdapter
{
    public UnifiedOrder Adapt(PlatformOrder platformOrder)
    {
        return new UnifiedOrder
        {
            OrderId = platformOrder.PlatformOrderId,
            ChannelSource = "ECommerce",
            OrderTime = platformOrder.CreatedAt,
            // ... 映射其他字段
        };
    }
}

// 使用EF Core定义订单聚合上下文和数据模型
public class OrderAggregationContext : DbContext
{
    public DbSet UnifiedOrders { get; set; }
    public DbSet OrderItems { get; set; }
    public DbSet RawOrderData { get; set; } // 存储原始数据

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        // 配置UnifiedOrder实体及其关系
        modelBuilder.Entity(entity =>
        {
            entity.HasKey(e => e.Id);
            entity.HasMany(e => e.Items).WithOne().HasForeignKey(i => i.OrderId);
            entity.HasIndex(e => e.ChannelSource); // 为常用查询字段建立索引
        });
    }
}

// 使用异步模式和HttpClient对接平台API
public async Task<>> FetchOrdersFromPlatformAsync(string apiUrl, string authToken)
{
    using (var httpClient = new HttpClient())
    {
        httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", authToken);
        var response = await httpClient.GetAsync(apiUrl);
        response.EnsureSuccessStatusCode();
        var jsonString = await response.Content.ReadAsStringAsync();
        return JsonSerializer.Deserialize<>>(jsonString);
    }
}