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StopShopping.Services/Extensions/AppOptions.cs

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+namespace StopShopping.Services.Extensions;
+
+/// <summary>
+/// 业务配置
+/// </summary>
+public record AppOptions
+{
+    /// <summary>
+    /// .bjbj.me
+    /// </summary>
+    /// <value></value>
+    public string CookieDomain { get; set; } = string.Empty;
+    /// <summary>
+    /// 域名，http(s)://www.xxx.xx
+    /// </summary>
+    /// <value></value>
+    public string DomainPath { get; set; } = string.Empty;
+    /// <summary>
+    /// anti-forgery 请求头
+    /// </summary>
+    /// <value></value>
+    public string CSRFHeaderName { get; set; } = string.Empty;
+    /// <summary>
+    /// anti-forgery cookie's name
+    /// </summary>
+    /// <value></value>
+    public string CSRFCookieName { get; set; } = string.Empty;
+    /// <summary>
+    /// 跨域站点
+    /// </summary>
+    /// <value></value>
+    public string[] CorsAllowedOrigins { get; set; } = [];
+}

StopShopping.Services/Extensions/EnumExtensions.cs

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+using StopShopping.Services.Models;
+
+namespace StopShopping.Services.Extensions;
+
+public static class EnumExtensions
+{
+    public static string GetTargetDirectory(this UploadScences uploadScences)
+    {
+        return uploadScences switch
+        {
+            UploadScences.Avatar => "avatar",
+            UploadScences.Product => "product",
+            UploadScences.Category => "category",
+            _ => throw new ArgumentOutOfRangeException(nameof(uploadScences))
+        };
+    }
+
+    public static char GetValue(this UserRoles userRoles)
+    {
+        return userRoles switch
+        {
+            UserRoles.Seller => 's',
+            UserRoles.Buyer => 'c',
+            _ => throw new ArgumentOutOfRangeException(nameof(userRoles))
+        };
+    }
+
+    public static UserRoles ToUserRoles(this char userRole)
+    {
+        return userRole switch
+        {
+            's' => UserRoles.Seller,
+            'c' => UserRoles.Buyer,
+            _ => throw new ArgumentOutOfRangeException(nameof(userRole), "valid: 'c','s'")
+        };
+    }
+
+    public static bool CanDelete(this RequestStatus requestStatus)
+    {
+        return requestStatus == RequestStatus.Publish
+            || requestStatus == RequestStatus.Replied;
+    }
+
+    public static bool CanReply(this RequestStatus requestStatus)
+    {
+        return requestStatus == RequestStatus.Publish
+            || requestStatus == RequestStatus.Replied;
+    }
+}

StopShopping.Services/Extensions/ServiceException.cs

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+namespace System;
+
+/// <summary>
+/// 业务异常
+/// </summary>
+public class ServiceException : ApplicationException
+{
+    public ServiceException() : base() { }
+
+    public ServiceException(string? message) : base(message) { }
+}

StopShopping.Services/Extensions/ServicesExtensions.cs

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+using FileSignatures;
+using FileSignatures.Formats;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
+using StopShopping.EF;
+using StopShopping.Services;
+using StopShopping.Services.Extensions;
+using StopShopping.Services.Implementions;
+
+namespace Microsoft.Extensions.DependencyInjection;
+
+public static class ServicesExtensions
+{
+    public static IServiceCollection AddServices(
+        this IServiceCollection services,
+        Action<DbContextOptionsBuilder> dbContextOptions,
+        IConfiguration appOptions,
+        IConfiguration openPlatformOptions)
+    {
+        services.AddDbContext<StopShoppingContext>(dbContextOptions);
+
+        services.Configure<AppOptions>(appOptions);
+
+        var imageFormats = FileFormatLocator.GetFormats().OfType<Image>();
+        var imageInspector = new FileFormatInspector(imageFormats);
+        services.AddSingleton<IFileFormatInspector>(imageInspector);
+
+        services.AddSingleton<ICipherService, CipherService>();
+        services.AddSingleton<ISerialNoGenerator, NanoidSerialNoGenerator>();
+
+        services.AddScoped<IDistrictService, DistrictService>();
+        services.AddScoped<IClaimsService, ClaimsService>();
+        services.AddScoped<IFileService, FileService>();
+        services.AddScoped<IAccessTokenService, AccessTokenService>();
+        services.AddScoped<IUserService, UserService>();
+        services.AddScoped<ICategoryService, CategoryService>();
+        services.AddScoped<IProductService, ProductService>();
+        services.AddScoped<IRequestService, RequestService>();
+        services.AddScoped<IReplyService, ReplyService>();
+
+        services.AddOpenPlatformServices(openPlatformOptions);
+
+        return services;
+    }
+}

StopShopping.Services/Extensions/SystemExtensions.cs

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+namespace System;
+
+public static class SystemExtensions
+{
+    public static string ToFormatted(this DateTime dateTime)
+    {
+        return dateTime.ToString("yyyy-MM-dd HH:mm:ss");
+    }
+
+    public static string ToFormatted(this DateOnly date)
+    {
+        return date.ToString("yyyy-MM-dd");
+    }
+}