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<?php namespace Arcanedev\Currencies\Converters; |
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use Arcanedev\Currencies\Entities\RateCollection; |
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use Illuminate\Support\Arr; |
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/** |
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* Class OpenExchangeRatesConverter |
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* |
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* @package Arcanedev\Currencies\Converters |
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* @author ARCANEDEV <[email protected]> |
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*/ |
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class OpenExchangeRatesConverter extends AbstractConverter |
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{ |
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/* ------------------------------------------------------------------------------------------------ |
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| Properties |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* The base URL. |
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* |
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* @var string |
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*/ |
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protected $baseUrl = 'http://openexchangerates.org/api'; |
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/** |
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* The API ID. |
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* |
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* @var string |
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*/ |
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protected $apiId; |
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/** |
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* @var bool |
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*/ |
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protected $proPlan; |
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/* ------------------------------------------------------------------------------------------------ |
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| Getters & Setters |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* Set the configs. |
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* |
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* @param array $configs |
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* |
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* @return mixed |
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*/ |
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protected function setProviderConfigs(array $configs) |
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{ |
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$this->apiId = Arr::get($configs, 'api-id'); |
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$this->proPlan = Arr::get($configs, 'pro-plan', false); |
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} |
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/** |
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* Get the API ID. |
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* |
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* @return string |
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* |
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* @throws \Exception |
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*/ |
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private function getAppId() |
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{ |
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if ( ! $this->apiId) { |
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throw new \Exception('OpenExchangeRates.org requires an app key.'); |
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} |
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return $this->apiId; |
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} |
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private function getFromCurrency($from) |
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{ |
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if (is_null($from)) { |
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$from = $this->getDefaultCurrency(); |
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} |
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return $from; |
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} |
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private function getToCurrencies($to) |
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{ |
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if (is_null($to)) { |
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return array_diff( |
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$this->getSupportedCurrencies(), |
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[$this->getDefaultCurrency()] |
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); |
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} |
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return $to; |
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} |
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/* ------------------------------------------------------------------------------------------------ |
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| Main Functions |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* Get currencies rates. |
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* |
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* @param string|null $from |
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* @param array|string|null $to |
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* |
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* @return RateCollection |
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*/ |
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public function rates($from = null, $to = null) |
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{ |
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$from = $this->getFromCurrency($from); |
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$to = $this->getToCurrencies($to); |
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$self = $this; |
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$callback = function () use ($self, $from, $to) { |
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return $self->request($from, $to); |
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}; |
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return $this->isCacheEnabled() |
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? $this->cache->remember($this->cacheKey, $this->cacheDuration, $callback) |
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: call_user_func($callback); |
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} |
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/** |
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* Make an API request. |
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* |
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* @param string $from |
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* @param array $to |
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* |
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* @return RateCollection |
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* |
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* @throws \Exception |
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*/ |
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protected function request($from, array $to) |
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{ |
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$params = array_filter([ |
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'app_id' => $this->getAppId(), |
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'base' => $from, |
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// TODO: Add a config parameter to limit results to specific currencies (Pro Plan) |
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'symbols' => $this->proPlan ? implode(',', $to) : null, |
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]); |
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$response = $this->client->get($this->getBaseUrl() . "/latest.json?".http_build_query($params)); |
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$data = json_decode($response, true); |
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return $this->prepareRates($from, $data['rates']); |
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} |
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/** |
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* Prepare rates collection. |
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* |
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* @param string $from |
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* @param array $rates |
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* |
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* @return RateCollection |
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*/ |
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protected function prepareRates($from, array $rates) |
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{ |
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return RateCollection::make()->load($from, $rates); |
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} |
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} |
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|
ARCANEDEV /
Currencies
