// 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;
}
// 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)
{
int size = records.Size();
StockItem* arr = records.Dump(size);
if (quantity < 0) { return false; }
for (int i = 0; i < size; i++)
{
if (arr[i].GetSKU() == itemsku)
{
StockItem *item = records.Retrieve(arr[i]);
int number = item->GetStock() - quantity;
if (number <= 0) { number = 0; }
if (item->GetStock() <= 0) { return false; }
if (number == 0)
{
this->balance = balance + ( item->GetStock()*item->GetPrice());
}
else
{
this->balance = balance + (quantity*item->GetPrice());
}
delete[] arr;
item->SetStock(number);
return true;
}
}
delete[] arr;
return false;
}
// 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)
{
int size = records.Size();
StockItem* arr = records.Dump(size);
if (quantity < 0 || unitprice < 0) {return false;}
if (quantity >= 1000){quantity = 1000;}
if ((quantity*unitprice) > balance) {return false;}
for (int i = 0; i < size; i++)
{
if (arr[i].GetSKU() == itemsku)
{
StockItem *item = records.Retrieve(arr[i]);
if(item->GetStock() >= 1000){return false;}
int number = item->GetStock() + quantity;
if(number >= 1000){quantity = 1000 - item->GetStock(); number = 1000;}
item->SetStock(number);
this->balance = balance - (quantity*unitprice);
delete[] arr;
return true;
}
}
delete[] arr;
return false;
}
// 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){
//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;
}
}
// 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;
}
}
