Added command to auto translate the app
php artisan translate
This commit is contained in:
Julian Prieber
parent
8b6981945d
commit
e63b3a902a
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@ -0,0 +1,358 @@
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<?php
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namespace App\Console\Commands;
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use Illuminate\Console\Command;
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use Illuminate\Support\Facades\File;
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use GuzzleHttp\Client;
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use GuzzleHttp\Exception\GuzzleException;
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use JsonException;
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use Throwable;
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interface TokenProviderInterface
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{
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public function generateToken(string $source, string $target, string $text): string;
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}
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class GoogleTokenGenerator implements TokenProviderInterface
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{
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public function generateToken(string $source, string $target, string $text): string
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{
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$tkk = ['406398', 2087938574];
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for ($d = [], $e = 0, $f = 0; $f < $this->length($text); $f++) {
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$g = $this->charCodeAt($text, $f);
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if ($g < 128) {
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$d[$e++] = $g;
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} else {
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if ($g < 2048) {
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$d[$e++] = $g >> 6 | 192;
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} else {
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if ($g & 64512 === 55296 && $f + 1 < $this->length($text) && ($this->charCodeAt($text, $f + 1) & 64512) === 56320) {
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$g = 65536 + (($g & 1023) << 10) + ($this->charCodeAt($text, ++$f) & 1023);
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$d[$e++] = $g >> 18 | 240;
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$d[$e++] = $g >> 12 & 63 | 128;
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} else {
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$d[$e++] = $g >> 12 | 224;
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}
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$d[$e++] = $g >> 6 & 63 | 128;
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}
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$d[$e++] = $g & 63 | 128;
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}
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}
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$a = $tkk[0];
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foreach ($d as $value) {
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$a += $value;
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$a = $this->rl($a, '+-a^+6');
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}
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$a = $this->rl($a, '+-3^+b+-f');
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$a ^= $tkk[1];
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if ($a < 0) {
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$a = ($a & 2147483647) + 2147483648;
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}
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$a = fmod($a, 1000000);
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return $a . '.' . ($a ^ $tkk[0]);
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}
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private function rl(int $a, string $b): int
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{
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for ($c = 0; $c < strlen($b) - 2; $c += 3) {
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$d = $b[$c + 2];
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$d = $d >= 'a' ? ord($d[0]) - 87 : (int) $d;
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$d = $b[$c + 1] === '+' ? $this->unsignedRightShift($a, $d) : $a << $d;
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$a = $b[$c] === '+' ? ($a + $d & 4294967295) : $a ^ $d;
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}
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return $a;
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}
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private function unsignedRightShift(int $a, int $b): int
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{
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if ($b >= 32 || $b < -32) {
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$m = (int) ($b / 32);
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$b -= ($m * 32);
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}
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if ($b < 0) {
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$b += 32;
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}
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if ($b === 0) {
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return (($a >> 1) & 0x7fffffff) * 2 + (($a >> $b) & 1);
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}
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if ($a < 0) {
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$a >>= 1;
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$a &= 2147483647;
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$a |= 0x40000000;
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$a >>= ($b - 1);
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} else {
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$a >>= $b;
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}
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return $a;
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}
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private function charCodeAt(string $string, int $index): int
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{
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return mb_ord(mb_substr($string, $index, 1));
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}
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private function length(string $string): int
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{
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return mb_strlen($string);
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}
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}
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class GoogleTranslate
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{
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protected Client $client;
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protected ?string $source;
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protected ?string $target;
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protected ?string $lastDetectedSource;
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protected string $url = 'https://translate.google.com/translate_a/single';
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protected array $options = [];
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protected array $urlParams = [
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'client' => 'gtx',
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'hl' => 'en',
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'dt' => [
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't',
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'bd',
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'at',
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'ex',
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'ld',
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'md',
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'qca',
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'rw',
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'rm',
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'ss'
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],
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'sl' => null,
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'tl' => null,
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'q' => null,
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'ie' => 'UTF-8',
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'oe' => 'UTF-8',
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'multires' => 1,
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'otf' => 0,
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'pc' => 1,
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'trs' => 1,
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'ssel' => 0,
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'tsel' => 0,
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'kc' => 1,
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'tk' => null,
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];
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protected array $resultRegexes = [
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'/,+/' => ',',
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'/\[,/' => '[',
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];
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protected TokenProviderInterface $tokenProvider;
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public function __construct(string $target = 'en', string $source = null, array $options = [], TokenProviderInterface $tokenProvider = null)
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{
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$this->client = new Client();
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$this->setTokenProvider($tokenProvider ?? new GoogleTokenGenerator)
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->setOptions($options)
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->setSource($source)
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->setTarget($target);
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}
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public function setTarget(string $target): self
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{
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$this->target = $target;
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return $this;
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}
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public function setSource(string $source = null): self
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{
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$this->source = $source ?? 'auto';
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return $this;
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}
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public function setUrl(string $url): self
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{
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$this->url = $url;
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return $this;
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}
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public function setClient(string $client): self
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{
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$this->urlParams['client'] = $client;
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return $this;
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}
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public function setOptions(array $options = []): self
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{
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$this->options = $options;
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return $this;
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}
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public function setTokenProvider(TokenProviderInterface $tokenProvider): self
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{
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$this->tokenProvider = $tokenProvider;
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return $this;
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}
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public function getLastDetectedSource(): ?string
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{
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return $this->lastDetectedSource;
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}
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public static function trans(string $string, string $target = 'en', string $source = null, array $options = [], TokenProviderInterface $tokenProvider = null): ?string
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{
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return (new self)
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->setTokenProvider($tokenProvider ?? new GoogleTokenGenerator)
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->setOptions($options)
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->setSource($source)
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->setTarget($target)
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->translate($string);
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}
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public function translate(string $string): ?string
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{
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if ($this->source === $this->target) {
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return $string;
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}
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$responseArray = $this->getResponse($string);
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if (empty($responseArray[0])) {
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return null;
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}
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$detectedLanguages = [];
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foreach ($responseArray as $item) {
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if (is_string($item)) {
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$detectedLanguages[] = $item;
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}
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}
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if (isset($responseArray[count($responseArray) - 2][0][0])) {
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$detectedLanguages[] = $responseArray[count($responseArray) - 2][0][0];
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}
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$this->lastDetectedSource = null;
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foreach ($detectedLanguages as $lang) {
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if ($this->isValidLocale($lang)) {
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$this->lastDetectedSource = $lang;
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break;
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}
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}
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if (is_string($responseArray)) {
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return $responseArray;
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}
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if (is_array($responseArray[0])) {
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return (string) array_reduce($responseArray[0], static function ($carry, $item) {
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$carry .= $item[0];
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return $carry;
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});
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}
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return (string) $responseArray[0];
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}
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public function getResponse(string $string): array
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{
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$queryArray = array_merge($this->urlParams, [
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'sl' => $this->source,
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'tl' => $this->target,
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'tk' => $this->tokenProvider->generateToken($this->source, $this->target, $string),
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'q' => $string
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]);
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$queryUrl = preg_replace('/%5B\d+%5D=/', '=', http_build_query($queryArray));
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try {
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$response = $this->client->get($this->url, [
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'query' => $queryUrl,
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] + $this->options);
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} catch (GuzzleException $e) {
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match ($e->getCode()) {
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429, 503 => throw new RateLimitException($e->getMessage(), $e->getCode()),
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413 => throw new LargeTextException($e->getMessage(), $e->getCode()),
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default => throw new TranslationRequestException($e->getMessage(), $e->getCode()),
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};
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} catch (Throwable $e) {
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throw new TranslationRequestException($e->getMessage(), $e->getCode());
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}
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$body = $response->getBody();
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$bodyJson = preg_replace(array_keys($this->resultRegexes), array_values($this->resultRegexes), $body);
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try {
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$bodyArray = json_decode($bodyJson, true, flags: JSON_THROW_ON_ERROR);
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} catch (JsonException) {
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throw new TranslationDecodingException('Data cannot be decoded or it is deeper than the recursion limit');
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}
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return $bodyArray;
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}
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protected function isValidLocale(string $lang): bool
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{
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return (bool) preg_match('/^([a-z]{2,3})(-[A-Za-z]{2,4})?$/', $lang);
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}
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}
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class Translate extends Command
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{
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protected $signature = 'translate';
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protected $description = 'Translate language files';
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public function handle()
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{
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$locales = ['de', 'es'];
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$sourceLocale = 'en';
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foreach ($locales as $locale) {
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$langPath = resource_path("lang/{$locale}");
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if (!File::exists($langPath)) {
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File::makeDirectory($langPath, 0755, true);
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}
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}
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$sourceFile = resource_path("lang/{$sourceLocale}/messages.php");
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$sourceTranslations = require($sourceFile);
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foreach ($locales as $locale) {
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$targetFile = resource_path("lang/{$locale}/messages.php");
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$targetTranslations = File::exists($targetFile) ? require($targetFile) : [];
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$tr = new GoogleTranslate();
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$tr->setSource($sourceLocale);
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$tr->setTarget($locale);
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foreach ($sourceTranslations as $key => $value) {
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if (!array_key_exists($key, $targetTranslations)) {
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$translatedValue = $tr->translate($value);
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$targetTranslations[$key] = $translatedValue;
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}
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}
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$content = '<?php' . PHP_EOL . PHP_EOL;
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$content .= 'return ' . var_export($targetTranslations, true) . ';' . PHP_EOL;
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file_put_contents($targetFile, $content);
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$this->info("Translations for '{$locale}' created successfully.");
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}
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}
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}
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