import { getTimezonesByCountry, getPrimaryTimezone } from "@visulima/iso-locale";

// Get all timezones for a country
const timezones = getTimezonesByCountry("US");
console.log(timezones);
// ["America/New_York", "America/Los_Angeles", "America/Chicago", ...]

// Get primary timezone (first in list)
const primary = getPrimaryTimezone("US");
console.log(primary); // "America/Adak"

import { getTimezonesByCountry } from "@visulima/iso-locale";

getTimezonesByCountry("GB"); // ["Europe/London"]
getTimezonesByCountry("FR"); // ["Europe/Paris"]
getTimezonesByCountry("JP"); // ["Asia/Tokyo"]

import { getTimezonesByCountry } from "@visulima/iso-locale";

// United States has many timezones
getTimezonesByCountry("US").length; // 29 timezones

// Canada has many timezones
getTimezonesByCountry("CA").length; // 27 timezones

// Australia has multiple timezones
getTimezonesByCountry("AU");
// ["Australia/Adelaide", "Australia/Brisbane", "Australia/Sydney", ...]

// Russia has many timezones
getTimezonesByCountry("RU").length; // 26 timezones

import { getCountriesForTimezone } from "@visulima/iso-locale";

// Find countries using a specific timezone
const countries = getCountriesForTimezone("Europe/London");
console.log(countries); // ["GB", ...]

const countries2 = getCountriesForTimezone("America/New_York");
console.log(countries2); // ["US"]

import { all as timezonesAll } from "@visulima/iso-locale";

const allTimezones = timezonesAll();
console.log(allTimezones.length); // 400+ timezones
console.log(allTimezones);
// ["Africa/Abidjan", "Africa/Accra", ...] (sorted)

import { isValidTimezone } from "@visulima/iso-locale";

isValidTimezone("Europe/London"); // true
isValidTimezone("America/New_York"); // true
isValidTimezone("Invalid/Timezone"); // false

import { timezonesByCountry } from "@visulima/iso-locale";

const timezones = timezonesByCountry["US"];
console.log(timezones); // readonly array of timezones

import { getPrimaryTimezone } from "@visulima/iso-locale";

function getCountryTimezone(countryCode: string) {
    return getPrimaryTimezone(countryCode);
}

getCountryTimezone("US"); // "America/Adak"
getCountryTimezone("GB"); // "Europe/London"

import { getCountriesForTimezone, getTimezonesByCountry } from "@visulima/iso-locale";

function getCountriesInSameTimezone(countryCode: string) {
    const timezones = getTimezonesByCountry(countryCode);
    if (timezones.length === 0) return [];

    // Get countries for the primary timezone
    return getCountriesForTimezone(timezones[0]);
}

import { isValidTimezone } from "@visulima/iso-locale";

function safeTimezoneOperation(timezone: string) {
    if (!isValidTimezone(timezone)) {
        throw new Error(`Invalid timezone: ${timezone}`);
    }

    // Use timezone with date libraries like date-fns, dayjs, etc.
    // Example with date-fns-tz:
    // import { zonedTimeToUtc } from "date-fns-tz";
    // return zonedTimeToUtc(new Date(), timezone);
}

import { getCountriesWithTimezones } from "@visulima/iso-locale";

const countries = getCountriesWithTimezones();
console.log(countries.length); // 200+ countries