Function onValidateHandles

packages/shared/src/hooks/useProfileForm.ts:44–67

(
  before: Partial<Handles>,
  after: Partial<Handles>,
)

  username.replace('@', '').trim();

export const onValidateHandles = (
  before: Partial<Handles>,
  after: Partial<Handles>,
): Partial<Record<keyof Handles, string>> => {
  if (after.username && after.username !== before.username) {
    const normalizedUsername = normalizeUsername(after.username);

    if (
      normalizedUsername.length < minUsernameLength ||
      normalizedUsername.length > maxUsernameLength
    ) {
      return { username: errorMessage.profile.usernameLength };
    }
    const isValid = handleRegex.test(normalizedUsername);

    if (!isValid) {
      return { username: errorMessage.profile.invalidUsername };
    }
  } else if ('username' in after && !after.username) {
    return { username: errorMessage.profile.usernameRequired };
  }

  return {};
};

/**
 * @deprecated Use useUserInfoForm instead