// pretend validators use regex.test(string)
import isInvalidEmail from '../pretendRegexValidators/isInvalidEmail';
import isInvalidName from '../pretendRegexValidators/isInvalidName';
import isInvalidPhoneNumber from '../pretendRegexValidators/isInvalidPhoneNumber';

export default function contactFormValidator(values) {
  const errors = {};
  const {
    firstName,
    lastName,
    email,
    phone,
  } = values;

  // Really I'd prefer to pull all the undefined checks into a function.  Or use validate-this :)
  if (firstName === undefined) {
    errors.firstName = `First Name is Required.`;
  } else if (isInvalidName(firstName)) {
    errors.firstName = `First Name cannot contain the characters we said it can't`;
  }
  if (lastName === undefined) {
    errors.lastName = `Last Name is Required.`;
  } else if (isInvalidName(lastName)) {
    errors.lastName = `Last Name cannot contain the characters we said it can't`;
  }
  if (email === undefined) {
    errors.email = `Email is Required.`;
  } else if (isInvalidEmail(email)) {
    errors.email = 'Must be a valid email.';
  }
  if (phone === undefined) {
    errors.phone = `Phone is Required.`;
  } else if (isInvalidPhoneNumber(phone)) {
    errors.phone = 'Must be a valid phone number.';
  }
  
  return errors;
}