SPP store Adam Chester George Dawoud

// SPP COMPUTER STORE - Created by Adam Chester and George Dawoud
#include <stdio.h>
#include <iostream>
#include <string.h>
#include <stdlib.h>
#include <cmath>
#include <vector>
using namespace std;

void login(); //login here
void store(); // main store
void purchase(); // purchase item
void inventory(); // displays list of inventory
void randomid(); //generates random ID for each item purchased
void checkout(); //function to checkout
void trans_id(); //transaction id

static const char transid[] = // letters and numbers for the transaction id
"0123456789"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ";

int stringLength = sizeof(transid) - 1; // the size of the string of the transaction id

char genRandom() {
    return transid[rand() % stringLength];
}

double bank = 1000; // maximum dollars to spend


void purchase() // function for purchasing each item
{
cout << "What would you like to buy?";
inventory();
checkout();
}

void checkout() // prices of items and checkout function.
{
int choice;
string answer;

double keyboard = 7.99;
double mouse = 2.99;
double moniter = 69.99;
double fan =27.99;
double motherboard = 64.98;
double cpu = 29.99;
double graphic_card =344.99;
double operating_system =12.99;
double pc_case =19.53;
double hardrive =99.96;
cin >> choice;
switch (choice)
    {
        case 1:
            cout << "You have chosen a Keyboard.\n"; // case for keyboard
            cout << "Price: $7.99 \n"; // price of item
            cout << "Sales tax: $0.56\n"; // tax on item
            cout << "Shipping Rate: $2.00 \n";  // shipping on item
            keyboard += (.07 * keyboard) + 2;
            cout << "Total: $" << keyboard << endl;
                if (keyboard > bank) {
                    cout << "Sorry you can't afford this #BROKE"; // if you do not have enough money for the item
                    exit(0);
                }
                if (keyboard < bank) { // transaction if you buy
                    randomid();
                    bank -= keyboard;
                    cout << "\n" << "Account Balance: $" << bank << endl; // the amount of money in the bank before and after expenses
                    cout << "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // continue function if you continue shopping
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if you chose not to continur shopping
                            cout << "Thank you for shopping";
                            exit(0);
                        }

                }

        break;
        case 2:
            cout << "You have chosen a Mouse.\n"; // case for mouse
            cout << "Price: $2.99 \n"; // price of mouse
            cout << "Sales tax: $0.20 \n"; // tax on mouse
            cout << "Shipping Rate: $1.50 \n"; // shipping on item
            mouse += (.07 * mouse) + 1.5;
            cout << "Total: $" << mouse << endl;
                if (mouse > bank) { // if you do not have enough money for the item this is the statement that appears.
                cout << "Sorry you can't afford this #BROKE";
                exit(0);
                }
                if (mouse < bank) { // if you choose to buy the item
                    randomid();
                    bank -= mouse;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you continue shoppig
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if you stop shopping
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 3:
            cout << "You have chosen a Moniter.\n"; // case for item
            cout << "Price: $69.99 \n"; // price of item
            cout << "Sales tax: $4.90 \n"; // amound of tax
            cout << "Shipping Rate: $9.00 \n"; // price of shipping on item
            moniter += (.07 * moniter) + 9.00;
            cout << "Total: $" << moniter << endl;
                if (moniter > bank) { // if you dont have enough money for the item this statement appears
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (moniter < bank) { // if you have enough money buy the item this function occurs
                    randomid();
                    bank -= moniter;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n"; // to choose whether or not to continue shopping
                    cin >> answer;
                        if (answer == "y") { // if yes continue shopping
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if no it exits
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 4:
            cout << "You have chosen a Motherboard.\n"; // case of motherboard
            cout << "Price: $64.98 \n"; // price of item
            cout << "Sales tax: $4.55\n"; // tax on item
            cout << "Shipping Rate: $6.50 \n"; // shipping on item
            motherboard += (.07 * motherboard) + 6.5;
            cout << "Total: $" << motherboard << endl;
                if (motherboard > bank) { // if you cant buy the item this prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (motherboard < bank) { // math of subtracting item from total money
                    randomid();
                    bank -= motherboard;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you continue to shop re run function and buy again
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if choose not to continue shopping exit code
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 5:
            cout << "You have chosen a CPU.\n"; // case of cpu
            cout << "Price: $29.99 \n"; // price of item
            cout << "Sales tax: $2.09\n"; // tax on item
            cout << "Shipping Rate: $3.00 \n"; // shipping on item
            cpu += (.07 * cpu) + 3.00;
            cout << "Total: $" << cpu << endl;
                if (cpu > bank) { // if you cant afford the item this prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (cpu < bank) { // if you have enough money to buy and choose too the math occurs here
                    randomid();
                    bank -= cpu;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you choose to continue shopping you re run the purchase function
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if not to continue shopping you exit the program
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 6:
            cout << "You have chosen a Graphic Card.\n"; // case of graphic card
            cout << "Price: $344.99 \n"; // price of item
            cout << "Sales tax: $24.15\n"; // tax on item
            cout << "Shipping Rate: $11.00 \n"; // shipping on item
            graphic_card += (.07 * graphic_card) + 11.00;
            cout << "Total: $" << graphic_card << endl;
                if (graphic_card > bank) { // if you cant afford the item this  prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (graphic_card < bank) { // if you have enough money the transaction goes through and you choose to continue or stop shopping
                    randomid();
                    bank -= graphic_card;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you choose to shop re run the purchase function
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if you choose to stop shopping exit program
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 7:
            cout << "You have chosen Windows Vista Operating System.\n"; // case of operating system
            cout << "Price: $12.99 \n"; // price of item
            cout << "Sales tax: $0.91 \n"; // tax on item
            cout << "Shipping Rate: $4.00 \n"; // shipping on item
            operating_system += (.07 * operating_system) + 4;
            cout << "Total: $" << operating_system << endl;
                if (operating_system > bank) { // if you dont have enough money for the item this prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (operating_system < bank) { // if you have enough the transaction goes through and you choose whether or not to buy
                    randomid();
                    bank -= operating_system;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you choose to continue shopping purchase function re runs
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if choose to stop shopping exit program
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 8:
            cout << "You have chosen the computer case.\n"; // case for pc case
            cout << "Price: $19.53 \n"; // price of item
            cout << "Sales tax: $1.37\n"; // tax on item
            cout << "Shipping Rate: $0.50\n"; // shipping on item
            pc_case += (.07 * pc_case) +.5;
            cout << "Total: $" << pc_case << endl;
                if (pc_case > bank) { // if you dont have enough money for the item this prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (pc_case < bank) {
                    randomid();
                    bank -= pc_case; // if you have enough money the math is here
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you continue to shop the purchase function runs again
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // code exits if choose not to continue shopping
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        case 9:
            cout << "You have chosen a Fan.\n"; // case for fan
            cout << "Price: $27.99 \n"; // price of fan
            cout << "Sales tax: $1.96\n"; // tax on item
            cout << "Shipping Rate: $2.25\n"; // shipping on item
            fan += (.07 * fan) + 2.25;
            cout << "Total: $" << fan << endl;
                if (fan > bank){
                    cout << "Sorry you can't afford this #BROKE"; // if you dont have enough money this prints out
                    exit(0);
                }
                if (fan < bank){ // if you have enough money the math is here that subtracts the money from the total amount of money that you have
                    randomid();
                    bank -= fan;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you continue to shop you go back to the list and purchase again
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") {
                            cout << "Thank you for shopping"; // if you dont want to shop this prints and the program terminates
                            exit(0);
                        }
                }
        break;
        case 10:
            cout << "You have chosen a Hardrive.\n"; // case for hardrive
            cout << "Price: $99.96 \n"; // price of hardrive
            cout << "Sales tax: $7.00 \n"; // tax on item
            cout << "Shipping Rate: $5.75\n"; // shipping of item
            hardrive += (.07 * hardrive) + 5.75;
            cout << "Total: $" << hardrive << endl;
                if (hardrive > bank) { // if you dont have enough money for the item this prints
                    cout << "Sorry you can't afford this #BROKE";
                    exit(0);
                }
                if (hardrive < bank) { // if you have enough money the math occurs and the balance prints
                    randomid();
                    bank -= hardrive;
                    cout << "\n" << "Account Balance: $" << bank << endl;
                    cout<< "Would you like to purchase anything else? (y for Yes - n for No)\n";
                    cin >> answer;
                        if (answer == "y") { // if you choose to continue shopping this happens
                            cout << "\n\n";
                            purchase();
                        }
                        if (answer == "n") { // if you choose not to continue shopping this happens
                            cout << "Thank you for shopping";
                            exit(0);
                        }
                }
        break;
        default: cout <<  "That choice is invalid.";
    }
}
void trans_id() {
    srand(time(0));
    for(int z=0; z < 10; z++)
    {
        cout << genRandom();

    }
}
void inventory() // the inventory function with all the items and their prices
{
cout << endl << "Here is what we have in stock:\n";
cout << " 1. Keyboard: $7.99\n" << " 2. Mouse: $2.99\n";
cout << " 3. Moniter: $69.99\n" << " 4. Motherboard: $64.98\n" << " 5. CPU: $29.99\n";
cout << " 6. Graphic Card: $344.99\n" << " 7. Windows Vista Operating System: $12.99\n";
cout << " 8. Computer Case: $19.53\n" << " 9. Fan: $27.99\n" << " 10. Hardrive: $99.96\n";
}

void store() // the storre function which pretty much starts the entire program
{
cout << "\n" << "Welcome to the SPP Computer store\n\n";
purchase();

}

void randomid() // function that prints the random id
{
    cout << "Your transaction ID code: ";
    trans_id();
}
void login()
{
 char username[5],password[5];

    const char* USERNAME = "ADMIN"; // Given username
    const char* PASSWORD = "admin"; // Given password
    cout << " Username: ";
    cin >> username; // input username
    cout << " Password: ";
    cin >> password; // input password

    if (strcmp (username,USERNAME) ==0) // comparing the input username to given username to see if its the same (if works continue)
    {
        if (strcmp (password,PASSWORD) ==0) // checks if input password is the same as given password  (if work continue)
        {
            store();
        }
    }
}

int main()
{
login();
return 0;
}