Actualización módulo de roles e implementación de permission middleware

backend/src/modules/auth/auth.service.ts

@@ -9,8 +9,7 @@ export class AuthService {
         userName:string,
         password:string
     ){
-        const user =
-        await userModel.findOne({
+        const user = await userModel.findOne({
             userName
         }).populate("roleId");
 

backend/src/modules/auth/permission.middleware.ts

@@ -0,0 +1,74 @@
+import { Request, Response, NextFunction } from "express";
+
+export const permissionMiddleware = (
+    module: string,
+    action: string
+) => {
+
+    return (
+        req: Request,
+        res: Response,
+        next: NextFunction
+    ) => {
+
+        try {
+
+            const user = (req as any).user;
+
+
+            if (!user) {
+
+                return res.status(401).json({
+                    message: "Usuario no autenticado."
+                });
+
+            }
+
+
+            if (!user.permissions) {
+
+                return res.status(403).json({
+                    message: "El usuario no tiene permisos asignados."
+                });
+
+            }
+
+
+            const hasPermission = user.permissions.some(
+
+                (permission: any) =>
+
+                    permission.module === module &&
+                    permission.action === action
+
+            );
+
+
+            if (!hasPermission) {
+
+                return res.status(403).json({
+
+                    message: "No tiene permisos para realizar esta acción."
+
+                });
+
+            }
+
+
+            next();
+
+        } catch (error) {
+
+            return res.status(500).json({
+
+                message: "Error al validar permisos.",
+
+                error
+
+            });
+
+        }
+
+    };
+
+};

backend/src/modules/roles/role.controller.ts

@@ -57,9 +57,10 @@ export class RoleController {
 
             res.status(201).json(role);
 
-        } catch(error){
+        } catch(error:any){
             res.status(500).json({
-                message:"Error al crear role"
+                message:error.message,
+                error
             });
 
         }

backend/src/modules/roles/role.middleware.ts

@@ -1,29 +0,0 @@
-import { Request, Response, NextFunction } from "express";
-
-export const roleMiddleware =
-(allowedRoles: string[]) => {
-
-    return (
-        req: any,
-        res: Response,
-        next: NextFunction
-    ) => {
-
-        const userRole =
-        req.user.roleName;
-
-        if (
-            !allowedRoles.includes(
-                userRole
-            )
-        ) {
-
-            return res.status(403).json({
-                message:
-                "No tiene permisos para realizar esta acción"
-            });
-        }
-
-        next();
-    };
-};

backend/src/modules/roles/role.model.ts

@@ -5,11 +5,13 @@ const roleSchema = new mongoose.Schema({
     roleName:{
         type:String,
         required:true,
-        unique:true
+        unique:true,
+        trim:true
     },
 
     description:{
-        type:String
+        type:String,
+        trim:true
     },
 
     active:{

backend/src/modules/roles/role.routes.ts

@@ -1,19 +1,20 @@
 import { Router } from "express";
 import { RoleController } from "./role.controller";
 import { authMiddleware } from "../auth/auth.middleware";
+import { permissionMiddleware } from "../auth/permission.middleware";
 
 const roleRouter = Router();
 
 const controller = new RoleController();
 
-roleRouter.get("/", authMiddleware, controller.getAll);
+roleRouter.get("/", authMiddleware, permissionMiddleware("roles", "read"), controller.getAll);
 
-roleRouter.get("/:id", authMiddleware, controller.getById);
+roleRouter.get("/:id", authMiddleware, permissionMiddleware("roles", "read"), controller.getById);
 
-roleRouter.post("/", authMiddleware, controller.create);
+roleRouter.post("/", authMiddleware, permissionMiddleware("roles", "create"), controller.create);
 
-roleRouter.put("/:id", authMiddleware, controller.update);
+roleRouter.put("/:id", authMiddleware, permissionMiddleware("roles", "update"), controller.update);
 
-roleRouter.delete("/:id", authMiddleware, controller.delete);
+roleRouter.delete("/:id", authMiddleware, permissionMiddleware("roles", "delete"), controller.delete);
 
-export default roleRouter;
+export default roleRouter ;

backend/src/modules/roles/role.service.ts

@@ -1,7 +1,10 @@
 import roleModel from "./role.model";
+import userModel from "../user/user.model";
+
 import { IRole } from "./role.interface";
 
 export class RoleService {
+
     async getAll() {
 
         return await roleModel.find();
@@ -16,6 +19,18 @@ export class RoleService {
     async create(
         data:IRole
     ) {
+
+        const exists = await roleModel.findOne({
+
+            roleName:data.roleName
+
+        });
+
+        if(exists){
+
+            throw new Error("Ya existe un rol con ese nombre.");
+        }
+
         return await roleModel.create(data);
     }
 
@@ -23,6 +38,23 @@ export class RoleService {
         id:string,
         data:Partial<IRole>
     ){
+        if (data.roleName) {
+
+            const exists = await roleModel.findOne({
+
+                roleName: data.roleName,
+
+                _id: {
+                    $ne: id
+                }
+
+            });
+
+            if (exists) {
+                throw new Error("Ya existe un rol con ese nombre.");
+            }
+        }
+
         return await roleModel.findByIdAndUpdate(
             id,
             data,
@@ -35,6 +67,31 @@ export class RoleService {
     async delete(
         id:string
     ){
+        // Verificar que el rol exista
+        const role = await roleModel.findById(id);
+
+        if (!role) {
+            return null;
+        }
+
+        // Verificar si el rol está asignado a usuarios
+        const usersWithRole = await userModel.countDocuments({
+            roleId: id
+        });
+
+        if (usersWithRole > 0) {
+            throw new Error(
+                "No se puede eliminar el rol porque está asignado a uno o más usuarios."
+            );
+        }
+
+        if(role.roleName === "ADMINISTRADOR"){
+
+            throw new Error(
+
+                "No se puede eliminar el rol Administrador.");
+        }
+        
         return await roleModel.findByIdAndDelete(id)
     }
 }