设计权限定义和权限提供者

src/HelloShop.ServiceDefaults/Extensions/PermissionExtensions.cs

@@ -0,0 +1,65 @@
+using HelloShop.ServiceDefaults.Permissions;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Routing;
+using Microsoft.Extensions.DependencyInjection;
+using System.Reflection;
+
+namespace HelloShop.ServiceDefaults.Extensions;
+
+public static class PermissionExtensions
+{
+    public static IServiceCollection AddPermissionDefinitions(this IServiceCollection services, Assembly? assembly = null)
+    {
+        assembly ??= Assembly.GetCallingAssembly();
+
+        var permissionDefinitionProviders = assembly.ExportedTypes.Where(t => t.IsAssignableTo(typeof(IPermissionDefinitionProvider)));
+
+        permissionDefinitionProviders.ToList().ForEach(t => services.AddSingleton(typeof(IPermissionDefinitionProvider), t));
+
+        services.AddSingleton<IPermissionDefinitionManager, PermissionDefinitionManager>();
+
+        return services;
+    }
+    
+    public static IEndpointRouteBuilder MapPermissionDefinitions(this IEndpointRouteBuilder endpoints, params string[] tags)
+    {
+        var routeGroup = endpoints.MapGroup(string.Empty);
+
+        routeGroup.MapGet("PermissionDefinitions", async (IPermissionDefinitionManager permissionDefinitionManager) =>
+        {
+            List<PermissionGroupDefinitionResponse> result = [];
+
+            var permissionGroups = await permissionDefinitionManager.GetGroupsAsync();
+
+            foreach (var permissionGroup in permissionGroups)
+            {
+                PermissionGroupDefinitionResponse permissionGroupDefinition = new()
+                {
+                    Name = permissionGroup.Name,
+                    DisplayName = permissionGroup.DisplayName,
+                    Permissions = []
+                };
+
+                foreach (PermissionDefinition? permission in permissionGroup.GetPermissionsWithChildren())
+                {
+                    PermissionDefinitionResponse permissionDefinition = new()
+                    {
+                        Name = permission.Name,
+                        DisplayName = permission.DisplayName,
+                        ParentName = permission.Parent?.Name
+                    };
+
+                    permissionGroupDefinition.Permissions.Add(permissionDefinition);
+                }
+
+                result.Add(permissionGroupDefinition);
+            }
+
+            return result;
+
+        }).WithTags(tags);
+
+        return routeGroup;
+    }
+}