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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| <?php | ||
|
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| namespace Currency\Captain\Providers; | ||
|
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| use Currency\Captain\Traits\HasHttpClient; | ||
| use Currency\Captain\Traits\HasLogger; | ||
| use GuzzleHttp\Psr7\Request; | ||
| use Http\Client\HttpClient; | ||
| use Monolog\Logger; | ||
| use Psr\Http\Message\ResponseInterface; | ||
| use Psr\Log\LoggerInterface; | ||
|
|
||
|
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| ini_set('xdebug.var_display_max_depth', 5); | ||
| ini_set('xdebug.var_display_max_children', 256); | ||
| ini_set('xdebug.var_display_max_data', 1024); | ||
|
|
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| /** | ||
| * Class CurrencyLayer | ||
| * @package Currency\Captain\Providers | ||
| */ | ||
| class CurrencyLayer implements ProviderInterface | ||
| { | ||
| /** HasLogger */ | ||
| use HasLogger; | ||
|
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| /** HasHttpClient */ | ||
| use HasHttpClient; | ||
|
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| /** @var string $key CurrencyLayer API key. */ | ||
| protected $key; | ||
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| /** | ||
| * CurrencyLayer constructor. | ||
| * @param LoggerInterface|null $logger | ||
| * @param HttpClient|null $client | ||
| * @param string $key | ||
| */ | ||
| public function __construct(?LoggerInterface $logger = null, ?HttpClient $client = null, string $key) | ||
| { | ||
| if(is_null($logger)) { | ||
| $logger = new Logger('Currency_Captain_CurrencyLayer'); | ||
| } | ||
| $this->setLogger($logger); | ||
|
|
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| if(is_null($client)) { | ||
| $client = $this->getClient(); | ||
| } | ||
| $this->setClient($client); | ||
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| //Set the API Key. | ||
| $this->setKey($key); | ||
| } | ||
|
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| /** | ||
| * CurrencyLayer does not support changing the base currency. So a little math is needed. | ||
| * @param string $from | ||
| * @param string $to | ||
| * @return float|null | ||
| * @throws \Http\Client\Exception | ||
| */ | ||
| public function getConversionRate(string $from, string $to) : ?float | ||
| { | ||
| $rate = null; | ||
| $key = $this->getKey(); | ||
| $endPoint = "http://apilayer.net/api/live?access_key=$key&format=1"; | ||
| $request = new Request('GET', $endPoint); | ||
| try { | ||
| $response = $this->getClient()->sendRequest($request); | ||
| if ($response->getStatusCode() != 200) { | ||
| throw new Exception("CurrencyLayer - Returned non-200 response."); | ||
| } | ||
| $rate = $this->parseConversionRateResponse($response, $from, $to); | ||
| } catch (\Exception $exception) { | ||
| $this->getLogger()->error($exception->getMessage()); | ||
| } | ||
| return $rate; | ||
| } | ||
|
|
||
| /** | ||
| * The base currency must be USD. | ||
| * @return array | ||
| * @throws \Http\Client\Exception | ||
| */ | ||
| public function getCurrencyList() : array | ||
| { | ||
|
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| $key = $this->getKey(); | ||
| $endPoint = "http://apilayer.net/api/live?access_key=$key&format=1"; | ||
| $request = new Request('GET', $endPoint); | ||
| try { | ||
| $response = $this->getClient()->sendRequest($request); | ||
| if ($response->getStatusCode() != 200) { | ||
| throw new \Exception("CurrencyLayer - Returned non-200 response."); | ||
| } | ||
| return $this->parseCurrencyListResponse($response); | ||
| } catch (\Exception $exception) { | ||
| $this->getLogger()->error($exception->getMessage()); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * @param string $key | ||
| * @return CurrencyLayer | ||
| */ | ||
| public function setKey(string $key): CurrencyLayer | ||
| { | ||
| $this->key = $key; | ||
| return $this; | ||
| } | ||
|
|
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| /** | ||
| * @return string | ||
| */ | ||
| protected function getKey() | ||
| { | ||
| return $this->key; | ||
| } | ||
|
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|
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| /** | ||
| * @param ResponseInterface $response | ||
| * @param string $from | ||
| * @param string $to | ||
| * @return float | ||
| * @throws \Exception | ||
| */ | ||
| private function parseConversionRateResponse(ResponseInterface $response, string $from, string $to) : float | ||
| { | ||
| $contents = $response->getBody()->getContents(); | ||
| $decoded = json_decode($contents); | ||
| $from = 'USD'.$from; | ||
| $to = 'USD'.$to; | ||
|
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|
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| if(!isset($decoded->quotes)) { | ||
| throw new \Exception('CurrencyLayer - Conversion rates not found.'); | ||
| } | ||
|
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| $rates = $decoded->quotes; | ||
| if(!isset($rates->$from) or !isset($rates->$to)) { | ||
| throw new \Exception("CurrencyLayer - Conversion rate not found for $from -> $to"); | ||
| } | ||
|
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| return $rates->$to / $rates->$from; | ||
|
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||
| } | ||
|
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|
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| /** | ||
| * @param ResponseInterface $response | ||
| * @return array | ||
| * @throws \Exception | ||
| */ | ||
| private function parseCurrencyListResponse(ResponseInterface $response) : array | ||
| { | ||
| $contents = $response->getBody()->getContents(); | ||
| $decoded = json_decode($contents, true); | ||
| if(isset($decoded['quotes'])) { | ||
| $currencyList = array_keys($decoded['quotes']); | ||
| foreach($currencyList as &$value) { | ||
| $value = substr($value, 3, 3); | ||
| } | ||
| return $currencyList; | ||
| } | ||
| throw new \Exception('CurrencyLayer - Rates not found.'); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| <?php | ||
|
|
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| namespace Tests\Currency\Captain\Providers; | ||
|
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| use Currency\Captain\Providers\CurrencyLayer; | ||
| use PHPUnit\Framework\TestCase; | ||
|
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| /** | ||
| * Class CurrencyLayerTest | ||
| * @package Tests\Currency\Captain\Providers | ||
| * @group CurrencyLayer | ||
| */ | ||
| class CurrencyLayerTest extends TestCase | ||
| { | ||
| protected $currencyLayer; | ||
|
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| public function setUp() | ||
| { | ||
| $currencyLayer = new CurrencyLayer(null, null, '3c2dfdae43b5c8f83b4ef78fa5997480'); | ||
| $this->setCurrencyLayer($currencyLayer); | ||
| } | ||
|
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|
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| public function testGetConversionRate() | ||
| { | ||
| $rate = $this->getCurrencyLayer()->getConversionRate('EUR', 'TRY'); | ||
| static::assertTrue(is_float($rate)); | ||
|
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| } | ||
|
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| public function testGetCurrencyList() | ||
| { | ||
| $currencyList = $this->getCurrencyLayer()->getCurrencyList(); | ||
| static::assertContains('USD', $currencyList); | ||
| static::assertContains('TRY', $currencyList); | ||
| } | ||
|
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|
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| /** | ||
| * @param CurrencyLayer $currencyLayer | ||
| * @return CurrencyLayerTest | ||
| */ | ||
| private function setCurrencyLayer(CurrencyLayer $currencyLayer) | ||
| { | ||
| $this->currencyLayer = $currencyLayer; | ||
| return $this; | ||
| } | ||
|
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| /** | ||
| * @return CurrencyLayer | ||
| */ | ||
| private function getCurrencyLayer() | ||
| { | ||
| return $this->currencyLayer; | ||
| } | ||
| } |
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