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2026-10-08 10:43:59 +08:00
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+using F9WebAiTest.Application.Common.Exceptions;
+using F9WebAiTest.Application.Interfaces.SnowflakeID;
+using F9WebAiTest.Application.Interfaces.UOW;
+using F9WebAiTest.Domain.Common;
+using F9WebAiTest.Domain.Entities.SYS.RBAC;
+using F9WebAiTest.Domain.Enums.SYS.RBAC;
+using NotificationTypeEntity = F9WebAiTest.Domain.Entities.Notice.NotificationType;
+using F9WebAiTest.Domain.Interfaces.SYS.RBAC.Permissions;
+using F9WebAiTest.Domain.Interfaces.SYS.RBAC.Roles;
+using MediatR;
+
+namespace F9WebAiTest.Application.CQRS.SYS.RBAC.Roles.Commands;
+
+/// <summary>命令定义</summary>
+public record RolePermission_AssignCommand(long RoleId, Permission_Type_Enum PermissionType, Resource_Type_Enum ResourceType, string ResourceIdentity, long ResourceId) : IRequest<long>;
+
+/// <summary>命令处理器</summary>
+public class AssignRolePermissionCommandHandler(
+    IRoleWriteRepository roleRepository,
+    IUnitOfWork_F9 unitOfWork,
+    IRolePermissionWriteRepository rolePermissionRep,
+    IPermissionWriteRepository permissionWriteRepository,
+    IRepository<NotificationTypeEntity> notificationTypeRepository,
+    ISnowflakeIdGenerator snowflakeIdGenerator,
+    IPublisher eventBus) : IRequestHandler<RolePermission_AssignCommand, long>
+{
+    public async Task<long> Handle(RolePermission_AssignCommand command, CancellationToken cancellationToken)
+    {
+        if (command.RoleId <= 0) throw new F9OperationException("角色ID不能为空");
+        if (command.ResourceId <= 0) throw new F9OperationException("资源ID不能为空");
+        if (string.IsNullOrWhiteSpace(command.ResourceIdentity)) throw new F9OperationException("资源标识不能为空");
+
+        Role role = null;
+        long rolePermissionId = 0;
+
+        var ok = await unitOfWork.ExecuteWithUow(async () =>
+        {
+            // 查或创建权限
+            var dbPermission = await permissionWriteRepository.GetByIdAsync(command.PermissionType, command.ResourceType, command.ResourceId);
+            if (dbPermission == null)
+            {
+                dbPermission = new Permission(
+                    snowflakeIdGenerator.CreateId(),
+                    command.PermissionType,
+                    command.ResourceType,
+                    command.ResourceIdentity,
+                    command.ResourceId);
+
+                // 消息订阅权限：Code 对齐消息类型的 RequiredPermission（业务权限码），保证订阅校验一致
+                if (command.ResourceType == Resource_Type_Enum.消息订阅)
+                {
+                    var type = await notificationTypeRepository.GetByIdAsync(command.ResourceId);
+                    if (type != null && !string.IsNullOrEmpty(type.RequiredPermission))
+                        dbPermission.SetCode(type.RequiredPermission);
+                }
+
+                await permissionWriteRepository.AddRangeAsync(new[] { dbPermission });
+            }
+
+            // 绑定角色权限
+            var rolePermission = new RolePermission(snowflakeIdGenerator.CreateId(), command.RoleId, dbPermission.Id);
+            var result = await rolePermissionRep.AssignAsync(rolePermission);
+
+            role = await roleRepository.GetByIdAsync(command.RoleId);
+            role.AddPermission(dbPermission.Id, command.ResourceType);
+
+            rolePermissionId = rolePermission.Id;
+            return result;
+        });
+
+        if (!ok) throw new F9OperationException("权限", "绑定");
+
+        // 发布领域事件
+        foreach (var domainEvent in role.DomainEvents)
+            await eventBus.Publish(domainEvent, cancellationToken);
+        role.ClearDomainEvents();
+
+        return rolePermissionId;
+    }
+}