#include <iostream>//This is the standard header
using namespace std;

void initialize(int& coke, int& pepsi, int& dry, int& hires);
void sales_type(char& sale_type, int& brand, int& quantity, int& coke, int& pepsi, int& dry, int& hires);
//void clearline();
void purchased(int& brand, int& quantity, int& coke, int& pepsi, int& dry, int& hires);
void sell(int& brand, int& quantity, int& coke, int& pepsi, int& dry, int& hires); 
void display_inventory(int& coke, int& pepsi, int& dry, int& hires);


int get_total_coke(int& coke, int& coke_add);
int get_total_pepsi(int& _pepsi, int& pepsi_add);
int get_total_dry(int& dry, int& dry_add);
int get_total_hires(int& hires, int& hires_add);

int main()//main returns an int its never void
{
	       int coke = 0;
	       int pepsi = 0;
           int dry = 0;
	       int hires = 0;
	       int brand;
	       int quanitity;//another spelling error	
	       char sale_type;

initialize(coke, pepsi, dry, hires);//spelled function call wrong
sales_type(sale_type, brand, quanitity, coke, pepsi, dry, hires);//spelling errors here
purchased(brand, quanitity, coke, pepsi, dry, hires);//spelled function call wrong agian
sell(brand, quanitity, coke, pepsi, dry, hires);//another spelling error(see a pattern?)
display_inventory(coke, pepsi, dry, hires);
//clearline();
return 0;//need to return 0
}

void initialize(int& coke, int& pepsi, int& dry, int& hires)
{
       int coke_add;
       int pepsi_add;
       int dry_add;
       int hires_add;

cout << "Please enter the inventory for each item "<< endl;
cout << "Enter the number of Coca-Cola cases: ";
cin >> coke_add;

while (cin.fail())
  {
cin.clear();
        cin.ignore(cin.fail());
        cout << "Invalid input...please re-enter"<< endl;
        cout << "\nEnter the number of Coca-Cola cases: ";
              cin >> coke_add;
   }
coke+= get_total_coke(coke, coke_add);

cout << "\nEnter the number of Pepsi cases: ";
cin >> pepsi_add;

while (cin.fail())
  {
        cin.clear();
        cin.ignore();
        cout << "Invalid input...please re-enter" << endl;
        cout << "\nEnter the number of Pepsi cases: " << endl;
        cin >> pepsi_add;
    }
pepsi+= get_total_pepsi( pepsi, pepsi_add);

cout << "\nEnter the number of Canada Dry cases: ";
cin >> dry_add;

while (cin.fail())
   {
cin.clear();
        cin.ignore();
cout << "Invalid input...please re-enter" << endl;
        cout << "\nEnter the number of Canada Dry cases: " << endl;
        cin >> dry_add;
   }
dry+= get_total_dry(dry, dry_add);

cout << "\nEnter the number of Hires cases: ";
cin >> hires_add;

while (cin.fail())
   {
        cin.clear();
        cin.ignore();
        cout << "Invalid input...please re-enter" << endl;
        cout << "\nEnter the number of Hires cases: " << endl;
        cin >> hires_add;
   }
hires+= get_total_hires(hires, hires_add);
//clearline();
 }

void sales_type(char& sale_type, int& brand, int& quantity, int& coke, int& pepsi,int& dry, int& hires)
{
cout << "\nPlease enter the command that you want to do: ";
cin >> sale_type;
cout << "\nPlease enter the brand that you would like to purchase: ";
cin >> brand;
cout << "\nPlease enter the quantity of the brand you would like to purchase: ";
cin >> quantity;

switch(sale_type)
{
case 'E': case 'e':
initialize(coke, pepsi, dry, hires);
break;

case 'P': case 'p':
purchased(brand, quantity, coke, pepsi, dry, hires);
break;

case 'S': case 's':
sell(brand, quantity, coke, pepsi, dry, hires);
break;

case 'D': case 'd':
display_inventory(coke, pepsi, dry, hires);
break;

case 'Q': case 'q':
cout << "Thank you and have a nuce day!!!" << endl;
break;
 }
}

void purchased(int& brand, int& quantity, int& coke, int& pepsi, int& dry, int& hires)//spelled wrong
{
while(brand >= 1 && brand <= 4)
  {
switch(brand)
   {
case '1':
coke = coke + quantity;
cout << "Inventory updated..." << endl;
break;

case '2':
pepsi = pepsi + quantity;
cout << "Inventory updated..." << endl;
break;

case '3':
dry = dry + quantity;
cout << "Inventory updated..." << endl;
break;

case '4':
hires = hires + quantity;
cout << "Inventory updated..." << endl;
break;

default:
cout << "bbThe action you requested is invalid.nothing has been done..." << endl;
  }
 }
cin.clear();
cin.ignore();
cout << "\nThe action you requested is invalid.nothing has been done..." << endl;
}

void sell(int& brand, int& quantity,  int& coke, int& pepsi, int& dry, int& hires)
{
while (brand >= 1 && brand <= 4)
 {
switch(brand)
 {
case '1':
while (!cin.fail() && quantity > 0)
        if(quantity > coke)
        {
cout << "Insufficient inventory to fill sell order, nothing changed." << endl;
             }
else coke = coke - quantity;
        cout << "Inventory updated...";
        break;
case '2':
while (!cin.fail() && quantity > 0)
        if(quantity > pepsi)
         {
cout << "Insufficient inventory to fill sell order, nothing changed." << endl;
              }
else pepsi = pepsi - quantity;
         cout << "Inventory updated...";
         break;
case '3':
while (!cin.fail() && quantity > 0)
        if(quantity > dry)
        {
cout << "Insufficient inventory to fill sell order, nothing changed." << endl;
            }
else dry = dry - quantity;
          cout << "Inventory updated...";
          break;
case '4':
while (!cin.fail() && quantity > 0)
        if(quantity > hires)
        {
cout << "Insufficient inventory to fill sell order, nothing changed." << endl;
             }
else hires = hires - quantity;
           cout << "Inventory updated...";
           break;

default:
cout  << "ccThe action you requested is invalid...nothing has been done" << endl;
     }
   }
}

int get_total_coke(int& coke, int& coke_add)
{
while (coke_add < 0)
  {
cout << " The action you have requested is invalid....nothing changed." << endl;
cout << " Please enter the amount of Coke cases: "<<endl;
cin.clear();
cin >> coke_add;
   }
 return coke_add;
}

int get_total_pepsi(int& pepsi, int& pepsi_add)
{
while (pepsi_add<0)
   {
cout << " The action you have requested is invalid....nothing changed." << endl;
cout << " Please enter the amount of Pepsi cases: " << endl;
cin.clear();
cin >> pepsi_add;
   }
 return pepsi_add;
}

int get_total_dry(int& dry, int& dry_add)
{
while (dry_add<0)
   {
cout << " The action you have requested is invalid....nothing changed." << endl;
cout << " Please enter the amount of Canada Dry cases: " << endl;
cin.clear();
cin >> dry_add;
   }
 return dry_add;
}

int get_total_hires(int& hires, int& hires_add)
{
while (hires_add<0)
   {
cout << " The action you have requested is invalid....nothing changed." << endl;
cout << " Please enter the amount of Hires cases: " << endl;
cin.clear();
cin >> hires_add;
   }
 return hires_add;
}

void display_inventory(int& coke, int& pepsi, int& dry, int& hires)
{
        cout << "Present inventory"<< endl;
        cout << "Coke--"<< coke << endl;
        cout << "Pepsi--"<< pepsi << endl;
        cout << "Canada Dry--" << dry << endl;
        cout << "Hires--" << hires << endl;
}