export const formatToArray = (
  value: string | string[] | undefined,
): string[] => {
  if (Array.isArray(value)) {
    return value.filter((item) => item !== undefined);
  }
  return value ? [value] : [];
};

export const inferInitialsFromEmail = (email: string) => {
  const localPart = email.split("@")[0];
  if (!localPart) return "";
  const separators = /[._-]/;
  const parts = localPart.split(separators);

  if (parts.length > 1) {
    return (
      (parts[0]?.[0] ?? "") + (parts[parts.length - 1]?.[0] ?? "")
    ).toUpperCase();
  } else {
    return localPart.slice(0, 2).toUpperCase();
  }
};

export const getInitialsFromName = (name: string) => {
  return name
    .split(" ")
    .map((namePart) => namePart.charAt(0).toUpperCase())
    .join("");
};