Vending Machine Final

//David Masson
//11-22-12
//Vending Machine

#include<iostream>
#include<sstream>
#include<iomanip>
#include<fstream>
#include<string>
#include<cctype>
#include<cstdlib>
#include<algorithm>
#include<unistd.h>

using namespace std;

class Stuff
{
    private:
        string item;
        int quantity;
        float cost;
        float money;
        float usermoney;
        int bills;
        int coins;
        string password;
        ifstream inventory;
    public:
        Stuff(string = "Item", int = 0, float = 0.0);
        string stuff_in();
        void setItem(string, int, float);
        void changeItem(string, int, float);
        void dispense();
        void money_in();
        void display();
        bool pass();
        void replenish(int, int);
        float collectMoney();
        float collectUserMoney();
        float collectCost();
        void setMoney(float);
        void setUserMoney(float);
        int getCoins();
        void setCoins(int);
        void initMachine();
        int getItemQuantity();
};

Stuff::Stuff(string itempub, int quantitypub, float costpub)
{
    item = itempub;
    quantity = quantitypub;
    cost = costpub;
}

string Stuff::stuff_in()
{
    string inv;
    ifstream inventory("initial_inventory.txt");
    if (inventory.is_open())
    {
        if(inventory.good() )
        {
            getline(inventory,inv);
        }
        inventory.close();
    }
    else
        cout << "Unable to open file";
    return inv;
}

void Stuff::setItem(string it, int qu, float co)
{
    item = it;
    quantity = qu;
    cost = co;
    return;
}

void Stuff::display()
{
    cout << fixed << setprecision(2);
    cout << left << setw(14) << item;
    if(quantity <= 0)
        cout << right << setw(15) << "Sold Out";
    else
        cout << right << setw(15) << quantity;
    cout << right << setw(15) << cost << endl;
    return;
}

void Stuff::dispense()
{
    quantity -= 1;
    cout << "Item dispensed" << endl;
    return;
}

void Stuff::money_in()
{
    int temp;
    bool mongo = true;

    if(coins <= 3)
    {
        cout << "Use exact change." << endl;
        cout << "Enter money in (quarters): ";
        cin >> temp;
        money += 0.25 * float(temp);
        usermoney += 0.25 * float(temp);
        coins += temp;
        cin.ignore();
        cout << "Money entered: $" << usermoney << endl;
    }
    else
    {
        while(mongo)
        {
            cout << "Enter money in ($1 bills): ";
            cin >> temp;
            if(temp > 2)
            {
                cout << "Woah there big spender, enter $2 or less." << endl;
                temp = 0;
            }
            else
                mongo = false;
        }
        money += float(temp);
        usermoney += float(temp);
        bills += temp;
        cout << "Enter money in (quarters): ";
        cin >> temp;
        money += 0.25 * float(temp);
        usermoney += 0.25 * float(temp);
        coins += temp;
        cin.ignore();
        cout << "Money entered: $" << usermoney << endl;
    }

    return;
}

bool Stuff::pass()
{
    bool yesno = false, running = true;

    while(running)
    {
        string tempstr;
        cout << "Enter password (blank is return to menu): ";
        getline(cin, tempstr);
        transform(tempstr.begin(), tempstr.end(), tempstr.begin(),::tolower);
        if(tempstr == password)
        {
            yesno = true;
            break;
        }
        else if(tempstr == "")
        {
            break;
        }
        else
        {
            continue;
        }
    }
    return yesno;
}

void Stuff::replenish(int i, int amount)
{
    if(i == 0)
        coins += amount;
    else
        quantity += amount;
}

float Stuff::collectMoney()
{
    return money;
}

float Stuff::collectUserMoney()
{
    return usermoney;
}

void Stuff::setMoney(float tmoney)
{
    money = tmoney;
    return;
}

void Stuff::setUserMoney(float tmoney)
{
    usermoney = tmoney;
    return;
}

float Stuff::collectCost()
{
    return cost;
}

int Stuff::getCoins()
{
    return coins;
}

void Stuff::setCoins(int i)
{
    coins = i;
    return;
}

void Stuff::initMachine()
{
    money = 2.50;
    usermoney = 0.0;
    bills = 0;
    coins = 10;
    password = "2770";
    return;
}

int Stuff::getItemQuantity()
{
    return quantity;
}

Stuff Machine[8];

void showMachineContent();
void initialize();
void run();
void admin();
void indexStuff();
string findString(string);
string findInt(string);
string findFloat(string);
string removeAt(string);
void refreshMoney();
void vend(int);
void endSession();
void adminHelp();
void userHelp();
void menuRefresh();

int main()
{
    initialize();
    run();

    return 0;
}

void initialize()
{
    system("clear");
    cout << "Loading..." << endl;
    sleep(1);
    cout << "64 KB RAM...";
    sleep(1);
    cout << " OK" << endl;
    cout << "4 MHz Z80 CPU...";
    sleep(1);
    cout << " OK" << endl;
    sleep(2);
    Machine[0].setItem("Machine", 1, 0.0);
    Machine[0].initMachine();
    indexStuff();
    menuRefresh();

    return;
}

void userHelp()
{
    cout << "To insert money into the machine, enter 0." << endl;
    cout << "To select item, enter item number (1-7)." << endl;
    cout << "To redisplay machine contents and show this prompt again, enter 00." << endl;
    cout << "To end your session, enter 9.\n" << endl;
    return;
}

void menuRefresh()
{
    system("clear");
    userHelp();
    cout << "$" << setprecision(2) << Machine[0].collectUserMoney() << " inserted\n" << endl;
    showMachineContent();
    return;
}

void run()
{
    bool running = true;
    while(running) //main loop
    {
        string tempstr;
        cout << "Enter command: ";
        getline(cin, tempstr);
        transform(tempstr.begin(), tempstr.end(), tempstr.begin(),::tolower);

        if(tempstr == "00")
        {
            menuRefresh();
        }
        else if(tempstr == "0")
        {
            Machine[0].money_in();
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "1")
        {
            vend(1);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "2")
        {
            vend(2);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "3")
        {
            vend(3);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "4")
        {
            vend(4);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "5")
        {
            vend(5);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "6")
        {
            vend(6);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "7")
        {
            vend(7);
            sleep(1);
            menuRefresh();
        }
        else if(tempstr == "9")
        {
            endSession();
        }
        else if(tempstr == "1337")
        {
            system("clear");
            if(Machine[0].pass())
            {
                system("clear");
                admin();
            }
        }
        else if(tempstr == "")
            continue;
        else
        {
            system("clear");
            cout << "\tInvalid command" << endl;
            sleep(1);
            menuRefresh();
            continue;
        }
    }
    return;
}

void adminHelp()
{
    cout << left << setw(15) << "Command";
    cout << left << setw(15) << "Description" << endl;
    cout << left << setw(15) << "00";
    cout << right << "Show this help menu." << endl;
    cout << left << setw(15) << "0";
    cout << right << "Go back to main menu." << endl;
    cout << left << setw(15) << "1";
    cout << right << "Reindexes inventory from file." << endl;
    cout << left << setw(15) << "2";
    cout << right << "Displays machine contents." << endl;
    cout << left << setw(15) << "3";
    cout << right << "Replenish coins." << endl;
    cout << left << setw(15) << "4";
    cout << right << "Replenish items." << endl;
    cout << left << setw(15) << "555";
    cout << right << "Shutdown vending machine." << endl;
    return;
}

void admin()
{
    bool running = true;

    adminHelp();
    while(running) //admin loop
    {
        string tempstr;
        cout << "@Enter command: ";
        getline(cin, tempstr);
        transform(tempstr.begin(), tempstr.end(), tempstr.begin(),::tolower);

        if(tempstr == "00")
        {
            system("clear");
            adminHelp();
        }
        else if(tempstr == "1")
        {
            indexStuff();
            system("clear");
        }
        else if(tempstr == "2")
        {
            system("clear");
            cout << left << setw(15) << "Machine Money";
            cout << left << setw(15) << "User Money";
            cout << left << setw(15) << "Machine Quarters" << endl;
            cout << left << "$" << left << setw(14) << Machine[0].collectMoney();
            cout << left << "$" << left << setw(14) << Machine[0].collectUserMoney();
            cout << left << setprecision(0) << Machine[0].getCoins() << " quarters" << endl;
        }
        else if(tempstr == "3")
        {
            int tnum;
            cout << "Enter amount of coins to replenish: ";
            cin >> tnum;
            cin.ignore();
            Machine[0].replenish(0, tnum);
        }
        else if(tempstr == "4")
        {
            int tnum, tnum2 = 0;
            while(tnum2 < 1 || tnum2 > 7)
            {
                cout << "Enter item position to replenish: ";
                cin >> tnum2;
            }
            cout << "Enter amount of item to replenish: ";
            cin >> tnum;
            cin.ignore();
            Machine[tnum2].replenish(1, tnum);
        }
        else if(tempstr == "555")
        {
            system("clear");
            exit(0);
        }
        else if(tempstr == "420")
            cout << "Go home vending machine, you're high." << endl;
        else if(tempstr == "0")
        {
            system("clear");
            userHelp();
            showMachineContent();
            break;
        }
        else if(tempstr == "")
            continue;
        else
        {
            cout << "\tInvalid command" << endl;
            continue;
        }
    }
    return;
}

void showMachineContent()
{
    cout << left << setw(15) << "Item number/item";
    cout << right << setw(15) << "Quantity";
    cout << right << setw(15) << "Price" << endl;
    for(int i = 1; i < 8; i++)
    {
        cout << i << " ";
        Machine[i].display();
    }
    return;
}

string findString(string str)
{
    string temp, temp2;
    char nextChar = str.at(0);

    for(int i = 0; i < int(str.length()); i++)
    {
        nextChar = str.at(i);
        if(nextChar != ',')
        {
            temp = str.at(i);
            temp2 += temp;
        }
        else if (nextChar == '@')
            continue;
        else
            break;
    }
    return temp2;
}

string findInt(string str)
{
    string temp, temp2, temp3;
    char nextChar;

    for(int i = 0; i < int(str.length()); i++)
    {
        nextChar = str.at(i);
        temp3 = nextChar;
        if(nextChar != ',' && isdigit(nextChar))
        {
            temp = str.at(i);
            temp2 += temp;
        }
        else if(nextChar == '@')
            continue;
        else
            break;
    }
    return temp2;
}

string findFloat(string str)
{
    string temp, temp2, temp3;
    char nextChar;

    for(int i = 0; i < int(str.length()); i++)
    {
        nextChar = str.at(i);
        temp3 = nextChar;
        if(nextChar != ',' && nextChar != '@')
        {
            temp = str.at(i);
            temp2 += temp;
        }
        else if(nextChar == '@')
            continue;
        else
            break;
    }
    return temp2;
}

string removeNums(string str)
{
    string temp, temp2;
    char nextChar;

    for(int i = 0; i < int(str.length()); i++)
    {
        nextChar = str.at(i);
        if(!isdigit(nextChar))
        {
            temp = str.at(i);
            temp2 += temp;
        }
    }
    return temp2;
}

string removeAt(string str)
{
    string temp, temp2;
    char nextChar;

    for(int i = 0; i < int(str.length()); i++)
    {
        nextChar = str.at(i);
        if(nextChar != '@')
        {
            temp = str.at(i);
            temp2 += temp;
        }
    }
    return temp2;
}

void indexStuff()
{
    string input, tempstr1;
    int j = 1;

    input = Machine[0].stuff_in();

    tempstr1 = input;

    for(int i = 1; i < 8; i++)
    {
        string tempstr2 = findString(tempstr1);
        tempstr1.replace(0, tempstr2.length() + j, "@");
        j = 2;

        string t2 = findInt(tempstr1);
        tempstr1.replace(0, t2.length() + j, "@");
        j = 2;

        string t3 = findFloat(tempstr1);
        tempstr1.replace(0, t3.length() + j, "@");
        j = 1;

        Machine[i].setItem(removeAt(tempstr2), atoi(t2.c_str()), atof(t3.c_str()));
    }

    input = "";
    return;
}

void refreshMoney()
{
    float tempmoney = 0;
    for(int i = 0; i < 8; i++)
    {
        tempmoney += Machine[i].collectMoney();
    }
    Machine[0].setMoney(tempmoney);
}

void vend(int i)
{
    if(Machine[i].getItemQuantity() <= 0)
    {
        cout << "Sold Out" << endl;
        return;
    }
    if(Machine[0].collectUserMoney() >= Machine[i].collectCost())
    {
        float tempcost = Machine[i].collectCost(), tempmoney = Machine[0].collectMoney(), tempusermoney = Machine[0].collectUserMoney();
        Machine[i].dispense();
        Machine[0].setMoney(tempmoney + tempcost);
        Machine[0].setUserMoney(tempusermoney - tempcost);
    }
    else
    {
        cout << "Not enough money, please insert more." << endl;
    }
}

void endSession()
{
    int tempcoins = int(Machine[0].collectUserMoney() / 0.25);
    Machine[0].setCoins(Machine[0].getCoins() - tempcoins);
    Machine[0].setUserMoney(0.0);
    cout << tempcoins << " quarter(s) returned." << endl;
    sleep(3);
    menuRefresh();
}