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<?php
/**
* Generates the json files stored in resources/country.
*/
set_time_limit(0);
// Downloaded from https://github.com/unicode-cldr/cldr-localenames-full.git
$localeDirectory = '../assets/cldr-localenames-full/main/';
$enCountries = $localeDirectory . 'en/territories.json';
// Downloaded from https://github.com/unicode-cldr/cldr-core.git
$codeMappings = '../assets/cldr-core/supplemental/codeMappings.json';
$currencyData = '../assets/cldr-core/supplemental/currencyData.json';
if (!file_exists($enCountries)) {
die("The $enCountries file was not found");
}
if (!file_exists($codeMappings)) {
die("The $codeMappings file was not found");
}
if (!file_exists($currencyData)) {
die("The $currencyData file was not found");
}
if (!function_exists('collator_create')) {
// Reimplementing intl's collator would be a huge undertaking, so we
// use it instead to presort the generated locale specific data.
die('The intl extension was not found.');
}
if (!is_dir($localeDirectory)) {
die("The $localeDirectory directory was not found");
}
$ignoredCountries = [
'AN', // Netherlands Antilles, no longer exists.
'BV', 'HM', 'CP', // Uninhabited islands.
'EU', 'QO', // European Union, Outlying Oceania. Not countries.
'ZZ', // Unknown region
];
// Locales listed without a "-" match all variants.
// Locales listed with a "-" match only those exact ones.
$ignoredLocales = [
// Interlingua is a made up language.
'ia',
// Valencian differs from its parent only by a single character (è/é).
'ca-ES-VALENCIA',
// Special "grouping" locales.
'root', 'en-US-POSIX', 'en-001', 'en-150', 'es-419',
];
// Assemble the base data. Use the "en" data to get a list of countries.
$codeMappings = json_decode(file_get_contents($codeMappings), true);
$codeMappings = $codeMappings['supplemental']['codeMappings'];
$currencyData = json_decode(file_get_contents($currencyData), true);
$currencyData = $currencyData['supplemental']['currencyData'];
$countryData = json_decode(file_get_contents($enCountries), true);
$countryData = $countryData['main']['en']['localeDisplayNames']['territories'];
$baseData = [];
foreach ($countryData as $countryCode => $countryName) {
if (is_numeric($countryCode) || in_array($countryCode, $ignoredCountries)) {
// Ignore continents, regions, uninhabited islands.
continue;
}
if (strpos($countryCode, '-alt-') !== false) {
// Ignore alternative names.
continue;
}
// Countries are not guaranteed to have an alpha3 and/or numeric code.
if (isset($codeMappings[$countryCode]['_alpha3'])) {
$baseData[$countryCode]['three_letter_code'] = $codeMappings[$countryCode]['_alpha3'];
}
if (isset($codeMappings[$countryCode]['_numeric'])) {
$baseData[$countryCode]['numeric_code'] = $codeMappings[$countryCode]['_numeric'];
}
// Determine the current currency for this country.
if (isset($currencyData['region'][$countryCode])) {
$currencies = prepare_currencies($currencyData['region'][$countryCode]);
if ($currencies) {
$currentCurrency = end(array_keys($currencies));
$baseData[$countryCode]['currency_code'] = $currentCurrency;
}
}
}
// Write out base.json.
ksort($baseData);
file_put_json('base.json', $baseData);
// Gather available locales.
$locales = [];
if ($handle = opendir($localeDirectory)) {
while (false !== ($entry = readdir($handle))) {
if (substr($entry, 0, 1) != '.') {
$entryParts = explode('-', $entry);
if (!in_array($entry, $ignoredLocales) && !in_array($entryParts[0], $ignoredLocales)) {
$locales[] = $entry;
}
}
}
closedir($handle);
}
// Create the localizations.
$countries = [];
$untranslatedCounts = [];
foreach ($locales as $locale) {
$data = json_decode(file_get_contents($localeDirectory . $locale . '/territories.json'), true);
$data = $data['main'][$locale]['localeDisplayNames']['territories'];
foreach ($data as $countryCode => $countryName) {
if (isset($baseData[$countryCode])) {
// This country name is untranslated, use the english version.
if ($countryCode == str_replace('_', '-', $countryName)) {
$countryName = $countryData[$countryCode];
// Maintain a count of untranslated countries per locale.
$untranslatedCounts += [$locale => 0];
$untranslatedCounts[$locale]++;
}
$countries[$locale][$countryCode] = [
'name' => $countryName,
];
}
}
}
// Ignore locales that are more than 80% untranslated.
foreach ($untranslatedCounts as $locale => $count) {
$totalCount = count($countries[$locale]);
$untranslatedPercentage = $count * (100 / $totalCount);
if ($untranslatedPercentage >= 80) {
unset($countries[$locale]);
}
}
// Identify localizations that are the same as the ones for the parent locale.
// For example, "fr-FR" if "fr" has the same data.
$duplicates = [];
foreach ($countries as $locale => $localizedCountries) {
if (strpos($locale, '-') !== false) {
$localeParts = explode('-', $locale);
array_pop($localeParts);
$parentLocale = implode('-', $localeParts);
$diff = array_udiff($localizedCountries, $countries[$parentLocale], function ($first, $second) {
return ($first['name'] == $second['name']) ? 0 : 1;
});
if (empty($diff)) {
// The duplicates are not removed right away because they might
// still be needed for other duplicate checks (for example,
// when there are locales like bs-Latn-BA, bs-Latn, bs).
$duplicates[] = $locale;
}
}
}
// Remove the duplicates.
foreach ($duplicates as $locale) {
unset($countries[$locale]);
}
// Write out the localizations.
foreach ($countries as $locale => $localizedCountries) {
$collator = collator_create($locale);
uasort($localizedCountries, function ($a, $b) use ($collator) {
return collator_compare($collator, $a['name'], $b['name']);
});
file_put_json($locale . '.json', $localizedCountries);
}
/**
* Converts the provided data into json and writes it to the disk.
*/
function file_put_json($filename, $data)
{
$data = json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
// Indenting with tabs instead of 4 spaces gives us 20% smaller files.
$data = str_replace(' ', "\t", $data);
file_put_contents($filename, $data);
}
/**
* Prepares the currencies for a specific country.
*/
function prepare_currencies($currencies) {
if (empty($currencies)) {
return [];
}
// Rekey the array by currency code.
foreach ($currencies as $index => $realCurrencies) {
foreach ($realCurrencies as $currencyCode => $currency) {
$currencies[$currencyCode] = $currency;
}
unset($currencies[$index]);
}
// Remove non-tender currencies.
$currencies = array_filter($currencies, function ($currency) {
return !isset($currency['_tender']) || $currency['_tender'] != 'false';
});
// Sort by _from date.
uasort($currencies, 'compare_from_dates');
return $currencies;
}
/**
* uasort callback for comparing arrays using their "_from" dates.
*/
function compare_from_dates($a, $b) {
$a = new DateTime($a['_from']);
$b = new DateTime($b['_from']);
// DateTime overloads the comparison providers.
if ($a == $b) {
return 0;
}
return ($a < $b) ? -1 : 1;
}
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