singlePosition method

@override Parser singlePosition()

Implementation

@override
Parser singlePosition() => super.singlePosition().map((each) {
      final e = each as List;

      final unit = e.first as Money;

      final allCost = e.elementAt(1) as List?;
      final costType = allCost?.elementAt(0) as String?;
      final isAbsoluteCost = costType == '{{';
      var cost = allCost?.elementAt(1) as Cost?;
      cost = cost?.copyWith(
        value: costType != null && isAbsoluteCost && cost.value != null
            ? Money.fromFixedWithCurrency(
                cost.value!.amount / (unit.amount * Fixed.fromNum(1.0)),
                cost.value!.currency,
                scale: 16)
            : cost.value,
      );

      final price = e.elementAt(2) as List?;
      final priceType = price?.first as String?;
      final isAbsolutePrice = priceType == '@@';
      var priceUnit = price?.last as Money?;
      priceUnit = priceType != null && isAbsolutePrice && priceUnit != null
          ? Money.fromFixedWithCurrency(
              priceUnit.amount / (unit.amount * Fixed.fromNum(1.0)),
              priceUnit.currency,
              scale: 16)
          : priceUnit;

      return Position(
        unit: unit,
        cost: costType != null ? (cost ?? Cost()) : null,
        isAbsoluteCost: isAbsoluteCost,
        price: priceUnit,
        isAbsolutePrice: isAbsolutePrice,
      );
    });