<?php

function alexr_clean_phone_number($phone)
{
	if (!$phone) return '';
	$phone = preg_replace('#[+\-\(\)\.\: ]#', '', $phone);
	return '+'.$phone;
}


function alexr_is_valid_phone($phone)
{
	$phone_number_validation_regex = "/^\\+?\\d{1,4}?[-.\\s]?\\(?\\d{1,3}?\\)?[-.\\s]?\\d{1,4}[-.\\s]?\\d{1,4}[-.\\s]?\\d{1,9}$/";
	return strlen($phone) >= 7 && preg_match($phone_number_validation_regex, $phone) == 1;
}

/**
 * Extract dial code and phone from a full phone number like +34628288272
 *
 * @param string $fullPhone Full phone number with country prefix (e.g. +34628288272)
 * @return array|null ['dial_code' => '+34', 'dial_code_country' => 'ES', 'phone' => '628288272'] or null
 */
function alexr_extract_dial_code_and_phone($fullPhone)
{
	$digits = preg_replace('/[^0-9]/', '', ltrim($fullPhone, '+'));

	if (empty($digits)) return null;

	// Get all prefixes sorted by length descending (match longest first)
	$prefixList = \Alexr\Enums\Countries::phonePrefixList();
	$prefixes = array_unique(array_values($prefixList));
	usort($prefixes, function($a, $b) {
		return strlen($b) - strlen($a);
	});

	foreach ($prefixes as $prefix) {
		if (strpos($digits, $prefix) === 0) {
			$phone = substr($digits, strlen($prefix));
			if (strlen($phone) >= 6) {
				$country = \Alexr\Enums\Countries::countryByPrefix($prefix);
				return [
					'dial_code'         => '+' . $prefix,
					'dial_code_country' => $country ?? '',
					'phone'             => $phone,
				];
			}
		}
	}

	return null;
}