frontend with ony errors

frontend/src/models/helpers/employeeHelpers.ts

@@ -0,0 +1,40 @@
+// backend/src/models/helpers/employeeHelpers.ts
+import { Employee, CreateEmployeeRequest, EmployeeAvailability } from '../Employee.js';
+
+// Simplified validation - use schema validation instead
+export function validateEmployeeData(employee: CreateEmployeeRequest): string[] {
+  const errors: string[] = [];
+
+  if (!employee.email?.includes('@')) {
+    errors.push('Valid email is required');
+  }
+
+  if (employee.password?.length < 6) {
+    errors.push('Password must be at least 6 characters long');
+  }
+
+  if (!employee.name?.trim() || employee.name.trim().length < 2) {
+    errors.push('Name is required and must be at least 2 characters long');
+  }
+
+  return errors;
+}
+
+// Simplified business logic helpers
+export const isManager = (employee: Employee): boolean => 
+  employee.employeeType === 'manager';
+
+export const isTrainee = (employee: Employee): boolean => 
+  employee.employeeType === 'trainee';
+
+export const isExperienced = (employee: Employee): boolean => 
+  employee.employeeType === 'experienced';
+
+export const isAdmin = (employee: Employee): boolean => 
+  employee.role === 'admin';
+
+export const canEmployeeWorkAlone = (employee: Employee): boolean => 
+  employee.canWorkAlone && isExperienced(employee);
+
+export const getEmployeeWorkHours = (employee: Employee): number =>
+  isManager(employee) ? 999 : (employee.contractType === 'small' ? 1 : 2);