src/utils/validation.ts

export function validateEmail(email: string): boolean {
  const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  return emailRegex.test(email);
}

export function validatePassword(password: string): { valid: boolean; errors: string[] } {
  const errors: string[] = [];

  if (password.length < 8) {
    errors.push('Password must be at least 8 characters long');
  }

  if (!/[A-Z]/.test(password)) {
    errors.push('Password must contain at least one uppercase letter');
  }

  if (!/[a-z]/.test(password)) {
    errors.push('Password must contain at least one lowercase letter');
  }

  if (!/[0-9]/.test(password)) {
    errors.push('Password must contain at least one number');
  }

  if (!/[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]/.test(password)) {
    errors.push('Password must contain at least one special character');
  }

  return {
    valid: errors.length === 0,
    errors,
  };
}

export function sanitizeInput(input: string): string {
  return input.trim().replace(/[<>]/g, '');
}