#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <iomanip>
 
 
using namespace std;
 
void getData(ifstream& infile, vector<int>& itemID, vector<string>& itemName, vector<int>& pOrdered, vector<int>& pInStore, vector<int>& pSold, vector<double>& manufPrice, vector<double>& sellingPrice);
void do_again(),usersChoice(char ans);
void searchInventory(string searchInput);
void printReport();
void printHeading();
void sellStock(string sellItem, int numSold);
int showMenu();
int ans();
 
vector<int>itemID, pOrdered, pInStore, pSold;
vector<double>manufPrice,sellingPrice;
vector<string>itemName;
int totalItems;
double totalInv;
unsigned int counter;
int searchName;
int sellName;
int sellNum;
char choice;
string searchInput;
string input;
int noOfRows;
 
 
int main()
{
	ifstream incode;
 
    incode.open("itemInfo.txt");
    if (!incode)
    {
        cout << "Can't open the input file" << endl;
        return 1;
    }
 
	getData(incode, itemID, itemName, pOrdered, pInStore, pSold, manufPrice, sellingPrice);
 
	showMenu();
    cin.get();
 
	incode.close();
 
	return 0;
}
 
 
 
 
void getData(ifstream& infile, vector<int>& itemID, vector<string>& itemName, vector<int>& pOrdered, vector<int>& pInStore, vector<int>& pSold, vector<double>& manufPrice, vector<double>& sellingPrice)
{
	int sold = 0;
    string name;
    int id, ordered;
    double mPrice;
    double sPrice;
    char ch;
 
	while (infile >> id)
	{
		infile.get(ch);                                
 
        getline(infile, name);       
 
	    infile >> ordered >> mPrice >> sPrice; 
 
 
	    itemID.push_back(id);
	    itemName.push_back(name);
	    pOrdered.push_back(ordered);
	    pInStore.push_back(ordered);
	    pSold.push_back(sold);
	    manufPrice.push_back(mPrice);
	    sellingPrice.push_back(sPrice);
     }
}
void usersChoice(char ans)
{
	int counter2 = 1;
 
     switch (choice)//roll thru options
     {
          case '1':  //if they picked the number 1, its gonna go to this function, 
                   //thats pretty much how the whole thing works
			  	unsigned int counter;
				cout << "\n\n\t\tWhich item would you like to check the inventory for?\n\n";
 
				for (counter = 0; counter < itemName.size(); counter++)
				{
					cout << "\t\t\t" << counter + 1 << ".  " << itemName[counter] << "\n";
 
				}
				cout << "\n\n\t\t\t  Choice: ";
 
				cin >> searchName;
				//cout << "\n\n\t" << itemName[searchName - 1];
				//input = ;
				searchInventory(itemName[searchName - 1]);
			   break;
          case '2':
	   // run sellStock function
 
				cout << "Which item would you like to sell?"
					 << endl;
 
				for (counter = 0; counter < itemName.size(); counter++)
				{
					cout << "\t\t\t" << counter + 1 << ".  " << itemName[counter] << "\n";
 
				}
				cout << "\n\n\t\t\t  Choice: ";
				cin >> sellName;
 
				cout << "\n\t\tHow many would you like to sell? ";
				cin >> numSold;
 
				sellStock(itemName[sellName - 1], numSold);
 
               break;
          case '3':
	  // run print Report
				printHeading();
				printReport();
 
               break;
		  case '4':
	  // exit the program
			   break;
          default://THEY'RE NOT FOLLOWING DIRECTIONS?!?!
               cout << "\t\tInvalid Input"
				    << endl;//if directions aren't followed
     }//end switch
}//end function
 
int showMenu()
{
	do
	{
	cout << "\n\n\t\tPlease choose from the following menu (1, 2, 3, or 4 to EXIT):\n";
	cout << "\n\t\t      (1) Check if an item is in inventory";
	cout << "\n\t\t      (2) Sell an item";
	cout << "\n\t\t      (3) Print a report\n\n";
	cout << "\n\t\t      (4) Exit\n\n\t\t\t  Choice: ";
	cin >> choice;
	usersChoice(choice);//send that answer to usersChoice!
	}while(choice != '4');
 
 
 
	return choice;
}
 
void searchInventory(string searchInput)
{
 
	for (counter = 0; counter < itemName.size(); counter++)
		if(itemName[counter] == searchInput)
			cout << "\n\t\tThere are " << pInStore[counter] << " " << searchInput << "s in stock.";
 
}
 
void printHeading()
{
		cout << "\n\n\t\t\t\tFriendly Hardware Store" << endl << endl;
	cout << "\tItemID\t" << "ItemName\t" << "pOrdered" << "  pInStore" << "  pSold" << "  manufPrice" << "   sellingPrice\n\n";
 
}
 
 
void printReport ()
{
	unsigned int x;
	double totalInventory = 0.00; //Value of all available inventory
	int totalItems = 0;
	double itemInventory = 0.00;
 
	for (x = 0; x <= itemID.size() - 1; x++)
 
	{	
 
		cout << "\t" << itemID[x] << "\t" << itemName[x] << "\t" << pOrdered[x] << "\t  " << pInStore[x] << "\t    " << pSold[x] << "\t   " << "$" << manufPrice[x] << ".00" << "\t" << "$" << sellingPrice[x] << ".00\n\n";
		itemInventory = static_cast<double>(pInStore[x]) * sellingPrice[x];
		totalInventory = totalInventory + itemInventory;	
		totalItems = totalItems + pInStore[x];
 
 
 
	}
 
 
 
	cout << "Total Inventory: $" << totalInventory << endl;
	cout << "Total number of items in the store: " << totalItems << endl;
 
 
}
 
void sellStock(string sellItem, int numSold)
{
	int totalItems = 0;
	double itemInventory = 0.00;
	double totalInventory = 0.00;
 
	for (counter = 0; counter < 6; counter++)
 
		if(sellItem == itemName[counter])
			pInStore[counter] = pInStore[counter] - numSold;
			pSold[counter] = pSold[counter] + numSold;
			totalItems = totalItems + pInStore[counter];
			totalItems = totalItems - numSold;
			totalInventory = totalInventory - (sellingPrice[counter] * numSold);
 
 
			printHeading();
			printReport();
}