import parsePhoneNumberFromString, { type CountryCode } from "libphonenumber-js"

import { logger } from "../logger"

import type { Lang } from "../constants/language"

export function formatPhoneNumber(
  phoneNumber: string,
  phoneNumberCC?: string | null
): string {
  if (!phoneNumber) return ""

  const normalized = phoneNumber.trim().replaceAll(/-|\s/g, "")

  const parsedPhonenumber = phoneNumberCC?.length
    ? parsePhoneNumberFromString(
        normalized,
        phoneNumberCC.toUpperCase() as CountryCode
      )
    : parsePhoneNumberFromString(normalized)

  if (!parsedPhonenumber?.isValid()) {
    logger.warn(
      `Invalid phone number: ${phoneNumber} with country code: ${phoneNumberCC}`,
      parsedPhonenumber
    )
  }

  return parsedPhonenumber?.number || normalized
}

export function getDefaultCountryFromLang(lang: Lang): Lowercase<CountryCode> {
  const countryMap: Record<Lang, Lowercase<CountryCode>> = {
    sv: "se",
    da: "dk",
    fi: "fi",
    no: "no",
    de: "de",
    en: "se", // Default to Sweden for English
  }
  return countryMap[lang] || "se"
}