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<?php |
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/* |
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* This file is part of the Exchange Rate package, an RunOpenCode project. |
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* |
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* Implementation of exchange rate crawler for Banca Intesa Serbia, http://www.bancaintesa.rs. |
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* |
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* (c) 2017 RunOpenCode |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace RunOpenCode\ExchangeRate\BancaIntesaSerbia\Parser; |
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use RunOpenCode\ExchangeRate\BancaIntesaSerbia\Enum\RateType; |
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use RunOpenCode\ExchangeRate\Contract\RateInterface; |
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use RunOpenCode\ExchangeRate\Model\Rate; |
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use RunOpenCode\ExchangeRate\BancaIntesaSerbia\Api; |
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use Symfony\Component\DomCrawler\Crawler; |
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/** |
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* Class HtmlParser |
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* |
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* Parse HTML document with daily rates from Banca Intesa Serbia. |
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* |
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* @package RunOpenCode\ExchangeRate\BancaIntesaSerbia\Parser |
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*/ |
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class HtmlParser |
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{ |
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/** |
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* @var RateInterface[] |
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*/ |
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private $rates; |
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/** |
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* @var \DateTime |
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*/ |
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private $date; |
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/** |
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* @var string |
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*/ |
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private $html; |
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/** |
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* HtmlParser constructor. |
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* @param $node string |
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* @param $date \DateTime |
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*/ |
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public function __construct($node, \DateTime $date) |
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{ |
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$this->html = $node; |
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$this->date = $date; |
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} |
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/** |
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* @return array|\RunOpenCode\ExchangeRate\Contract\RateInterface[] |
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*/ |
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public function getRates() |
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{ |
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if (empty($this->rates)) { |
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$this->rates = $this->parseHtml($this->html, $this->date); |
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} |
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return $this->rates; |
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} |
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/** |
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* @param $html string |
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* @param \DateTime $date |
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* @return array |
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*/ |
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private function parseHtml($html, \DateTime $date) |
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{ |
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$crawler = new Crawler($html); |
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$crawler = $crawler->filter('table'); |
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return $this->extractRates($crawler, $date); |
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} |
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/** |
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* @param Crawler $crawler |
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* @param \DateTime $date |
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* @return array |
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*/ |
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private function extractRates(Crawler $crawler, \DateTime $date) |
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{ |
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$extractedRates = array(); |
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$crawler->filter('tr')->each(function (Crawler $node) use ($date, &$extractedRates) { |
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$row = $this->parseRow($node); |
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if (null !== $row) { |
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$extractedRates[] = $this->buildRate( |
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$row[RateType::MEDIAN] / $row['unit'], |
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$row['currencyCode'], |
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RateType::MEDIAN, |
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$date |
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); |
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$extractedRates[] = $this->buildRate( |
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$row[RateType::FOREIGN_EXCHANGE_BUYING] / $row['unit'], |
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$row['currencyCode'], |
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RateType::FOREIGN_EXCHANGE_BUYING, |
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$date |
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); |
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$extractedRates[] = $this->buildRate( |
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$row[RateType::FOREIGN_EXCHANGE_SELLING] / $row['unit'], |
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$row['currencyCode'], |
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RateType::FOREIGN_EXCHANGE_SELLING, |
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$this->date |
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); |
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$extractedRates[] = $this->buildRate( |
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$row[RateType::FOREIGN_CASH_BUYING] / $row['unit'], |
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$row['currencyCode'], |
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RateType::FOREIGN_CASH_BUYING, |
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$this->date |
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); |
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$extractedRates[] = $this->buildRate( |
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$row[RateType::FOREIGN_CASH_SELLING] / $row['unit'], |
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$row['currencyCode'], |
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RateType::FOREIGN_CASH_SELLING, |
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$this->date |
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); |
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} |
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}); |
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/** |
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* @var Rate $rate |
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*/ |
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foreach ($extractedRates as $key => $rate){ |
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if (!$rate->getValue()) { |
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unset($extractedRates[$key]); |
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} |
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} |
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return $extractedRates; |
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} |
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/** |
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* @param Crawler $crawler |
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* @return array|null |
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*/ |
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private function parseRow(Crawler $crawler) |
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{ |
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$currentRow = array( |
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'currencyCode' => '' |
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); |
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$nodeValues = $crawler->filter('td')->each(function (Crawler $node) { |
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return trim($node->text()); |
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}); |
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if (count($nodeValues)) { |
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$currentRow['currencyCode'] = trim($nodeValues[1]); |
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$currentRow['unit'] = (int) trim($nodeValues[2]); |
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$currentRow[RateType::FOREIGN_EXCHANGE_BUYING] = (float) trim($nodeValues[3]); |
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$currentRow[RateType::MEDIAN] = (float) trim($nodeValues[4]); |
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$currentRow[RateType::FOREIGN_EXCHANGE_SELLING] = (float) trim($nodeValues[5]); |
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$currentRow[RateType::FOREIGN_CASH_BUYING] = (float) trim($nodeValues[6]); |
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$currentRow[RateType::FOREIGN_CASH_SELLING] = (float) trim($nodeValues[7]); |
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} |
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return strlen($currentRow['currencyCode']) === 3 ? $currentRow : null; |
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} |
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/** |
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* @param $value |
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* @param $currencyCode |
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* @param $rateType |
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* @param $date |
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* @return Rate |
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*/ |
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private function buildRate($value, $currencyCode, $rateType, $date) |
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{ |
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return new Rate(Api::NAME, $value, $currencyCode, $rateType, $date, 'RSD', new \DateTime('now'), new \DateTime('now') ); |
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} |
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} |
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RunOpenCode /
exchange-rate-intesa-rs
