// Sell an item to a customer, if quantity of stock is available and SKU exists.
// Reduce stock by quantity, increase balance by quantity*price, and return true if stock available.
// If partial stock (less than quantity) available, sell the available stock and return true.
// If no stock, sku does not exist, or quantity is negative, return false.
bool StockSystem::Sell(int itemsku, int quantity)
{
bool existence;
StockItem item = StockItem(itemsku, "", 0);
StockItem* temp = records.Retrieve(item);
if (temp == nullptr)
existence = false;
else
existence = true;
if (existence && temp->GetStock() > quantity)
{
temp->SetStock(temp->GetStock() - quantity);
balance = balance + quantity*(temp->GetPrice());
return true;
}
else if ((0 <= quantity < temp->GetStock()) && existence)
{
balance = balance + (temp->GetStock())*(temp->GetPrice());
temp->SetStock(0);
return true;
}
else
return false;
}
// Locate the item with key itemsku and update its description field.
// Return false if itemsku is not found or retailprice is negative.
bool StockSystem::EditStockItemPrice(int itemsku, double retailprice)
{
StockItem item = StockItem(itemsku, "", 0);
StockItem* temp = records.Retrieve(item);
if (temp != nullptr && retailprice >= 0)
{
temp->SetPrice(retailprice);
return true;
}
else
return false;
}
// Locate the item with key itemsku and update its description field.
// Return false if itemsku is not found.
bool StockSystem::EditStockItemDescription(int itemsku, string desc)
{
StockItem item = StockItem(itemsku, desc, 0);
StockItem* temp = records.Retrieve(item);
if (temp != nullptr)
{
temp->SetDescription(desc);
return true;
}
else
return false;
}
// Locate the item with key itemsku and update its description field.
// Return false if itemsku is not found.
bool StockSystem::EditStockItemDescription(int itemsku, string desc){
//init an stockitem
StockItem inputItem = StockItem(itemsku, desc, 0);
//search this identical item, if it is found return a pointer to it
StockItem* valueRetreived = records.Retrieve(inputItem);
//if the pointer is null, must be that retrieve failed
if (valueRetreived == NULL) {
return false;
}else{
valueRetreived->SetDescription(desc);
return true;
}
}
// Purchase quantity of item at unitprice each, to reach a maximum (post-purchase) on-hand stock quantity of 1000.
// Return false if balance is not sufficient to make the purchase,
// or if SKU does not exist, or if quantity or unitprice are negative.
// Otherwise, return true and increase the item's on-hand stock by quantity,
// and reduce balance by quantity*unitprice.
bool StockSystem::Restock(int itemsku, int quantity, double unitprice){
//to reach a maximum (post-purchase) on-hand stock quantity of 1000.
if (balance < quantity*unitprice) {
return false;
}
StockItem inputItem = StockItem(itemsku, "ignore this message", unitprice);
//search this identical item, if it is found return a pointer to it
StockItem* valueRetreived = records.Retrieve(inputItem);
//if the pointer is null, must be that retrieve failed
if (valueRetreived == NULL||quantity<0||(valueRetreived->GetStock()+quantity)>1000||unitprice<0){
return false;
}else{
valueRetreived->SetStock(valueRetreived->GetStock()+quantity);
balance = balance-(quantity*unitprice);
return true;
}
}
// Locate the item with key itemsku and update its description field.
// Return false if itemsku is not found or retailprice is negative.
bool StockSystem::EditStockItemPrice(int itemsku, double retailprice){
//init an stockitem
StockItem inputItem = StockItem(itemsku, "ignore this message", retailprice);
//search this identical item, if it is found return a pointer to it
StockItem* valueRetreived = records.Retrieve(inputItem);
//if the pointer is null, must be that retrieve failed
if (valueRetreived == NULL) {
return false;
}else{
//check negative pricing
if (valueRetreived->GetPrice() < 0) {
return false;
}else{
valueRetreived->SetPrice(retailprice);
return true;
}
}
}
// Sell an item to a customer, if quantity of stock is available and SKU exists.
// Reduce stock by quantity, increase balance by quantity*price, and return true if stock available.
// If partial stock (less than quantity) available, sell the available stock and return true.
// If no stock, sku does not exist, or quantity is negative, return false.
bool StockSystem::Sell(int itemsku, int quantity){
StockItem inputItem = StockItem(itemsku, "ignore this message", 0.00);
//search this identical item, if it is found return a pointer to it
StockItem* valueRetreived = records.Retrieve(inputItem);
//if the pointer is null, must be that retrieve failed
if (valueRetreived == NULL || quantity <=0 || valueRetreived->GetStock()<=0) {
return false;
}else{
if (valueRetreived->GetStock()<=quantity) {
balance = balance + (valueRetreived->GetStock())*(valueRetreived->GetPrice());
valueRetreived->SetStock(0);
return true;
}else{
valueRetreived->SetStock(valueRetreived->GetStock()-quantity);
balance = balance + quantity*(valueRetreived->GetPrice());
return true;
}
}
}
// Purchase quantity of item at unitprice each, to reach a maximum (post-purchase) on-hand stock quantity of 1000.
// Return false if balance is not sufficient to make the purchase,
// or if SKU does not exist, or if quantity or unitprice are negative.
// Otherwise, return true and increase the item's on-hand stock by quantity,
// and reduce balance by quantity*unitprice.
bool StockSystem::Restock(int itemsku, int quantity, double unitprice)
{
bool balEnough, existence;
if (balance > quantity*unitprice)
balEnough = true;
else
balEnough = false;
StockItem item = StockItem(itemsku, "", 0);
StockItem* temp = records.Retrieve(item);
if (temp == nullptr)
existence = false;
else
existence = true;
if (!balEnough || !existence || (quantity < 0) || (unitprice < 0))
return false;
else
{
temp->SetStock(temp->GetStock() + quantity);
balance = balance - quantity*unitprice;
return true;
}
}