feat(nestjs): migrate to NestJS

packages/server/src/modules/Roles/utils.ts

@@ -0,0 +1,62 @@
+import { keyBy } from 'lodash';
+import { ISubjectAbilitiesSchema } from './Roles.types';
+import { CommandRolePermissionDto } from './dtos/Role.dto';
+import { AbilitySchema } from './AbilitySchema';
+import { ServiceError } from '../Items/ServiceError';
+import { ERRORS } from './constants';
+
+/**
+ * Transformes ability schema to map.
+ */
+export function transformAbilitySchemaToMap(schema: ISubjectAbilitiesSchema[]) {
+  return keyBy(
+    schema.map((item) => ({
+      ...item,
+      abilities: keyBy(item.abilities, 'key'),
+      extraAbilities: keyBy(item.extraAbilities, 'key'),
+    })),
+    'subject',
+  );
+}
+
+/**
+ * Retrieve the invalid permissions from the given defined schema.
+ * @param {ISubjectAbilitiesSchema[]} schema
+ * @param permissions
+ * @returns
+ */
+export function getInvalidPermissions(
+  schema: ISubjectAbilitiesSchema[],
+  permissions,
+) {
+  const schemaMap = transformAbilitySchemaToMap(schema);
+
+  return permissions.filter((permission) => {
+    const { subject, ability } = permission;
+
+    if (
+      !schemaMap[subject] ||
+      (!schemaMap[subject].abilities[ability] &&
+        !schemaMap[subject].extraAbilities[ability])
+    ) {
+      return true;
+    }
+    return false;
+  });
+}
+
+/**
+ * Validates the invalid given permissions.
+ * @param {ICreateRolePermissionDTO[]} permissions -
+ */
+export const validateInvalidPermissions = (
+  permissions: CommandRolePermissionDto[],
+) => {
+  const invalidPerms = getInvalidPermissions(AbilitySchema, permissions);
+
+  if (invalidPerms.length > 0) {
+    throw new ServiceError(ERRORS.INVALIDATE_PERMISSIONS, null, {
+      invalidPermissions: invalidPerms,
+    });
+  }
+};