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Really use euro as base currency when querying exchange rates, so we can use the configuration-free ECB provider

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This should fixes issue #154.
This commit is contained in:
Jan Böhmer 2022-12-11 15:33:50 +01:00
parent 2b2fc6f1e6
commit 7235cb72b4
4 changed files with 29 additions and 7 deletions
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12
src/Services/ExchangeRateUpdater.php
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@ -22,6 +22,7 @@ namespace App\Services;
use App\Entity\PriceInformations\Currency;
use Brick\Math\BigDecimal;
use Brick\Math\RoundingMode;
use Swap\Swap;
class ExchangeRateUpdater
@ -40,8 +41,15 @@ class ExchangeRateUpdater
*/
public function update(Currency $currency): Currency
{
$rate = $this->swap->latest($currency->getIsoCode().'/'.$this->base_currency);
$currency->setExchangeRate(BigDecimal::of($rate->getValue()));
//Currency pairs are always in the format "BASE/QUOTE"
$rate = $this->swap->latest($this->base_currency.'/'.$currency->getIsoCode());
//The rate says how many quote units are worth one base unit
//So we need to invert it to get the exchange rate
$rate_bd = BigDecimal::of($rate->getValue());
$rate_inverted = BigDecimal::one()->dividedBy($rate_bd, Currency::PRICE_SCALE, RoundingMode::HALF_UP);
$currency->setExchangeRate($rate_inverted);
return $currency;
}