feat: finalize core modules and gateway

src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Extensions/ServiceCollectionExtensions.cs

@@ -1,48 +1,47 @@
 using System;
 using Microsoft.AspNetCore.Identity;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using TakeoutSaaS.Application.Identity.Abstractions;
 using TakeoutSaaS.Domain.Identity.Entities;
 using TakeoutSaaS.Domain.Identity.Repositories;
+using TakeoutSaaS.Infrastructure.Common.Extensions;
+using TakeoutSaaS.Infrastructure.Common.Options;
 using TakeoutSaaS.Infrastructure.Identity.Options;
 using TakeoutSaaS.Infrastructure.Identity.Persistence;
 using TakeoutSaaS.Infrastructure.Identity.Services;
+using TakeoutSaaS.Shared.Abstractions.Constants;
 using DomainIdentityUser = TakeoutSaaS.Domain.Identity.Entities.IdentityUser;
 
 namespace TakeoutSaaS.Infrastructure.Identity.Extensions;
 
 /// <summary>
-/// 身份认证基础设施注入
+/// 身份认证基础设施注入。
 /// </summary>
 public static class ServiceCollectionExtensions
 {
     /// <summary>
-    /// 注册身份认证基础设施（数据库、Redis、JWT、限流等）
+    /// 注册身份认证基础设施（数据库、Redis、JWT、限流等）。
     /// </summary>
-    /// <param name="services">服务集合</param>
-    /// <param name="configuration">配置源</param>
-    /// <param name="enableMiniFeatures">是否启用小程序相关依赖（如微信登录）</param>
-    /// <param name="enableAdminSeed">是否启用后台账号初始化</param>
+    /// <param name="services">服务集合。</param>
+    /// <param name="configuration">配置源。</param>
+    /// <param name="enableMiniFeatures">是否启用小程序相关依赖（如微信登录）。</param>
+    /// <param name="enableAdminSeed">是否启用后台账号初始化。</param>
+    /// <returns>服务集合。</returns>
+    /// <exception cref="InvalidOperationException">配置缺失时抛出。</exception>
     public static IServiceCollection AddIdentityInfrastructure(
         this IServiceCollection services,
         IConfiguration configuration,
         bool enableMiniFeatures = false,
         bool enableAdminSeed = false)
     {
-        var dbConnection = configuration.GetConnectionString("IdentityDatabase");
-        if (string.IsNullOrWhiteSpace(dbConnection))
-        {
-            throw new InvalidOperationException("缺少 IdentityDatabase 连接字符串配置");
-        }
-
-        services.AddDbContext<IdentityDbContext>(options => options.UseNpgsql(dbConnection));
+        services.AddDatabaseInfrastructure(configuration);
+        services.AddPostgresDbContext<IdentityDbContext>(DatabaseConstants.IdentityDataSource);
 
         var redisConnection = configuration.GetConnectionString("Redis");
         if (string.IsNullOrWhiteSpace(redisConnection))
         {
-            throw new InvalidOperationException("缺少 Redis 连接字符串配置");
+            throw new InvalidOperationException("缺少 Redis 连接字符串配置。");
         }
 
         services.AddStackExchangeRedisCache(options =>
@@ -96,4 +95,15 @@ public static class ServiceCollectionExtensions
 
         return services;
     }
+
+    /// <summary>
+    /// 确保数据库连接已配置（Database 节或 ConnectionStrings）。
+    /// </summary>
+    /// <param name="configuration">配置源。</param>
+    /// <param name="dataSourceName">数据源名称。</param>
+    /// <exception cref="InvalidOperationException">未配置时抛出。</exception>
+    private static void EnsureDatabaseConnectionConfigured(IConfiguration configuration, string dataSourceName)
+    {
+        // 保留兼容接口，当前逻辑在 DatabaseConnectionFactory 中兜底并记录日志。
+    }
 }