Examples with ProductAvailabilityEx com.ncedu.fooddelivery.api.v1.errors.orderRegistration.ProductAvailabilityEx used on opensource projects

Example 1 with ProductAvailabilityEx

use of com.ncedu.fooddelivery.api.v1.errors.orderRegistration.ProductAvailabilityEx in project 2021-msk-food-delivery by netcracker-edu.

the class OrderServiceImpl1 method countOrderCost.

@Override
public CountOrderCostResponseDTO countOrderCost(CountOrderCostRequestDTO dto) {
    WarehouseInfoDTO warehouse = warehouseService.getNearestWarehouse(dto.getGeo().getLat(), dto.getGeo().getLon());
    if (warehouse == null)
        throw new NotFoundEx(String.format("{Lat: %s; lon: %s}", dto.getGeo().getLat().toString(), dto.getGeo().getLon().toString()));
    Long warehouseId = warehouse.getId();
    if (!warehouseId.equals(dto.getWarehouseId()))
        throw new WarehouseCoordsBindingEx();
    Map<Long, Integer> productsAvailableAmounts = new HashMap<>();
    Double overallOrderCost = 0.0;
    Double overallOrderDiscount = 0.0;
    Double orderHighDemandCoeff;
    boolean enoughProductPositions = true;
    for (Map.Entry<Long, Integer> pair : dto.getProductAmountPairs().entrySet()) {
        Long productId = pair.getKey();
        Integer requestedAmount = pair.getValue();
        List<ProductPosition> productPositions = productPositionRepo.findByProductIdAndWarehouseId(productId, warehouseId);
        // filtering expired product positions
        productPositions = productPositions.stream().filter(new Predicate<ProductPosition>() {

            @Override
            public boolean test(ProductPosition productPosition) {
                Short expirationDays = productPosition.getProduct().getExpirationDays();
                Date manufactureDate = productPosition.getManufactureDate();
                Calendar c = Calendar.getInstance();
                c.setTime(manufactureDate);
                c.add(Calendar.DATE, expirationDays);
                if (c.before(Calendar.getInstance()))
                    return false;
                return true;
            }
        }).collect(Collectors.toList());
        Integer overallAmount = 0;
        for (ProductPosition pos : productPositions) {
            overallAmount += pos.getCurrentAmount();
        }
        if (overallAmount < requestedAmount) {
            productsAvailableAmounts.put(productId, overallAmount);
            enoughProductPositions = false;
        }
        if (enoughProductPositions) {
            // product price count
            Product product = productRepo.findById(productId).get();
            Double productDiscount = product.getDiscount();
            Double productPrice = product.getPrice();
            overallOrderCost += requestedAmount * (productPrice - productDiscount);
            overallOrderDiscount += productDiscount * requestedAmount;
        }
    }
    if (!enoughProductPositions) {
        throw new ProductAvailabilityEx(productsAvailableAmounts);
    }
    orderHighDemandCoeff = countHighDemandCoeff(warehouseId);
    overallOrderCost = Math.round(overallOrderCost * orderHighDemandCoeff * 100.0) / 100.0;
    return new CountOrderCostResponseDTO(overallOrderCost, overallOrderDiscount, orderHighDemandCoeff);
}

Example 2 with ProductAvailabilityEx

use of com.ncedu.fooddelivery.api.v1.errors.orderRegistration.ProductAvailabilityEx in project 2021-msk-food-delivery by netcracker-edu.

the class OrderServiceImpl1 method countOrderCost.

@Override
public Double[] countOrderCost(CoordsDTO geo, HashMap<Long, Integer> pairs, Long clientWarehouseId) {
    WarehouseInfoDTO warehouse = warehouseService.getNearestWarehouse(geo.getLat(), geo.getLon());
    if (warehouse == null)
        throw new NotFoundEx(String.format("Lat: %s; lon: %s", geo.getLat().toString(), geo.getLon().toString()));
    Long warehouseId = warehouse.getId();
    if (!warehouseId.equals(clientWarehouseId))
        throw new WarehouseCoordsBindingEx();
    Map<Long, Integer> productsAvailableAmounts = new HashMap<>();
    Double overallOrderCost = 0.0;
    Double overallOrderDiscount = 0.0;
    Double orderHighDemandCoeff;
    boolean enoughProductPositions = true;
    for (Map.Entry<Long, Integer> pair : pairs.entrySet()) {
        Long productId = pair.getKey();
        Integer requestedAmount = pair.getValue();
        // 'findByProductIdAndWarehouseIdWithLock' sets lock on every product position in result set. So no one
        // other thread
        // will be able to interact with these positions before whole transaction will complete.
        List<ProductPosition> productPositions = productPositionRepo.findByProductIdAndWarehouseIdWithLock(productId, warehouseId);
        // filtering expired product positions
        productPositions = productPositions.stream().filter(new Predicate<ProductPosition>() {

            @Override
            public boolean test(ProductPosition productPosition) {
                Short expirationDays = productPosition.getProduct().getExpirationDays();
                Date manufactureDate = productPosition.getManufactureDate();
                Calendar c = Calendar.getInstance();
                c.setTime(manufactureDate);
                c.add(Calendar.DATE, expirationDays);
                if (c.before(Calendar.getInstance()))
                    return false;
                return true;
            }
        }).collect(Collectors.toList());
        Integer overallAmount = 0;
        for (ProductPosition pos : productPositions) {
            overallAmount += pos.getCurrentAmount();
        }
        if (overallAmount < requestedAmount) {
            productsAvailableAmounts.put(productId, overallAmount);
            enoughProductPositions = false;
        }
        if (enoughProductPositions) {
            // product price count
            Product product = productPositions.get(0).getProduct();
            Double productDiscount = product.getDiscount();
            Double productPrice = product.getPrice();
            overallOrderCost += requestedAmount * (productPrice - productDiscount);
            overallOrderDiscount += productDiscount * requestedAmount;
        }
    }
    if (!enoughProductPositions) {
        throw new ProductAvailabilityEx(productsAvailableAmounts);
    }
    orderHighDemandCoeff = countHighDemandCoeff(warehouseId);
    overallOrderCost = Math.round(overallOrderCost * orderHighDemandCoeff * 100.0) / 100.0;
    return new Double[] { overallOrderCost, overallOrderDiscount, orderHighDemandCoeff };
}