<?php

namespace CommerceGuys\Addressing;

/**
 * The 1.0 branch of Addressing introduced two big changes:
 * - The recipient was split into given_name, additional_name, family_name.
 * - Subdivision IDs were removed, the subdivision code is now stored directly.
 * These two changes require updating every stored address.
 * This class provides helpers for performing that update.
 */
class UpdateHelper
{
	/**
	 * A static cache of the subdivision $oldId => $newId map.
	 *
	 * @var array
	 */
	protected static $subdivisionUpdateMap = [];


	/**
	 * Splits the recipient into givenName and familyName fields.
	 *
	 * @param string $recipient   The recipient.
	 * @param string $countryCode The country code.
	 *
	 * @return array The result, with givenName and familyName keys.
	 */
	public static function splitRecipient($recipient, $countryCode): array
	{
		$reverseCountries = [
		    'KH', 'CN', 'HU', 'JP', 'KO', 'MG', 'TW', 'VN',
		];
		$recipientParts = explode(' ', $recipient);
		if (in_array($countryCode, $reverseCountries)) {
		    $familyName = array_shift($recipientParts);
		    $givenName = implode(' ', $recipientParts);
		} else {
		    $familyName = array_pop($recipientParts);
		    $givenName = implode(' ', $recipientParts);
		}

		return ['givenName' => $givenName, 'familyName' => $familyName];
	}


	/**
	 * Updates the subdivision.
	 *
	 * Used for updating the administrative area, locality, dependent locality
	 * address properties.
	 *
	 * @param string $oldValue The old value.
	 *
	 * @return string The new value.
	 */
	public static function updateSubdivision($oldValue): string
	{
		$supportedCountries = [
		    'AD', 'AE', 'AM', 'AR', 'AU', 'BR', 'BS', 'CA', 'CL', 'CN', 'CV',
		    'EG', 'ES', 'HK', 'ID', 'IE', 'IN', 'IT', 'JM', 'JP', 'KN', 'KR',
		    'KY', 'MX', 'MY', 'NG', 'NI', 'NR', 'PH', 'RU', 'SO', 'SR', 'SV',
		    'TH', 'TR', 'TV', 'TW', 'UA', 'US', 'UY', 'VE', 'VN'
		];
		// Countries where the subdivision IDs just need the prefix removed.
		$simpleAdministrativeAreas = [
		    'AU', 'BR', 'CA', 'IT', 'US',
		];

		if (substr($oldValue, 2, 1) != '-') {
		    // This is a full value, not the ID of a predefined value.
		    return $oldValue;
		}
		$countryCode = substr($oldValue, 0, 2);
		if (!in_array($countryCode, $supportedCountries)) {
		    // Unrecognized country code.
		    return $oldValue;
		}

		// Prefixed administrative area.
		$parts = explode('-', $oldValue);
		$isAdministrativeArea = count($parts) == 2;
		if ($isAdministrativeArea && in_array($countryCode, $simpleAdministrativeAreas)) {
		    return $parts[1];
		}
		// Mapped value.
		$updateMap = static::loadSubdivisionUpdateMap();
		if (isset($updateMap[$oldValue])) {
		    return $updateMap[$oldValue];
		}

		return $oldValue;
	}


	/**
	 * Loads the subdivision update map.
	 *
	 * @return array The update map.
	 */
	public static function loadSubdivisionUpdateMap(): array
	{
		if (empty(static::$subdivisionUpdateMap)) {
		    $path = __DIR__ . '/../resources/';
		    $rawMap = file_get_contents($path . 'subdivision_update_map.json');
		    static::$subdivisionUpdateMap = json_decode($rawMap, true);
		}

		return static::$subdivisionUpdateMap;
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzA5NzY1OTI0MDQwMTA5NSAyNTE4MDAzNTgzMDQ4OTg5IDgyOTM0NDA4MDEyNDQ2NzA=