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<?php
/**
 * Class MoneyFormatter.
 *
 * @package WooCommerce\PayPalCommerce\ApiClient\Entity
 */

declare(strict_types=1);

namespace WooCommerce\PayPalCommerce\ApiClient\Helper;

/**
 * Class MoneyFormatter
 */
class MoneyFormatter {
	/**
	 * Currencies that does not support decimals.
	 *
	 * @var array
	 */
	private $currencies_without_decimals = array( 'HUF', 'JPY', 'TWD' );

/**
	 * Returns the value formatted as string for API requests.
	 *
	 * @param float  $value The value.
	 * @param string $currency The 3-letter currency code.
	 *
	 * @return string
	 */
	public function format( float $value, string $currency ): string {
		return in_array( $currency, $this->currencies_without_decimals, true )
			? (string) round( $value, 0 )
			: number_format( $value, 2, '.', '' );
	}

/**
	 * Returns the minimum amount a currency can be incremented or decremented.
	 *
	 * @param string $currency The 3-letter currency code.
	 * @return float
	 */
	public function minimum_increment( string $currency ): float {
		return (float) in_array( $currency, $this->currencies_without_decimals, true )
			? 1.00
			: 0.01;
	}
}