// Programmer: Dylan McDonald
// Class & Section: CS 54, Section <n>
// Date: February 6, 2007
// Purpose: To figure out how badly you're getting ripped off
//          (to learn enums)

#include <cstdlib> /* for srand() and rand() */
#include <ctime> /* for time() */
#include <iostream>
using namespace std;

enum car {SAWDUST = 1, JALOPY, BEATUP, EXIT};

int main()
{
  int i, carChoice, numCars, profit = 0;
  int numBeatups = 0, numJalopies = 0, numSawdusts = 0;
  bool carSold, exitLoop = false;

  /* Part II - master loop that keeps the program going */
  while (!exitLoop)
  {
    /* Part I - show the menu & ask for the car type */
    /* Part II added the exit option */
    cout << "1) Sawdust 325i" << endl;
    cout << "2) Jalopy 2400" << endl;
    cout << "3) BeatupMobile ZX7" << endl;
    cout << "4) Exit" << endl;
    cout << "Which car do you want to enter into inventory? ";
    cin >> carChoice;

    /* Part I - switch the choice & report according to the type */
    switch (carChoice)
    {
      /* ...for the Sawdust */
      case SAWDUST:
        cout << "How many more Sawdust 325i's do we have? ";
        cin >> numCars;
        numSawdusts = numSawdusts + numCars;
        break;
      /* ...for the Jalopy */
      case JALOPY:
        cout << "How many more Jalopy 2400's do we have? ";
        cin >> numCars;
        numJalopies = numJalopies + numCars;
        break;
      /* ...for the BeatupMobile */
      case BEATUP:
        cout << "How many more BeatupMobile ZX7's do we have? ";
        cin >> numCars;
        numBeatups = numBeatups + numCars;
        break;
      /* ...for if the user wants to bail out */
      case EXIT:
        exitLoop = true;
        break;
      /* ...for cars too good for this lot */
      default:
        cout << "There exists no such car." << endl;
        break;
    }
  }

  /* Part II - give a final report to the user */
  cout << "We have: " << endl
    << numSawdusts << " Sawdust 325i's" << endl
    << numJalopies << " Jalopy 2400's" << endl
    << numBeatups << " BeatupMobile ZX7's" << endl;

  /* Part III - find the profit */
  /* start by initializing the random number generator */
  srand(time(NULL));
  /* ...for the Sawdusts */
  for (i = 0; i < numSawdusts; i++)
  {
    carSold = rand() % 2;
    if (carSold)
    {
      profit = profit + (7300 - 50);
    }
  }
  /* ...for the Jalopies */
  for (i = 0; i < numJalopies; i++)
  {
    carSold = rand() % 2;
    if (carSold)
    {
      profit = profit + (6600 - 22);
    }
  }
  /* ...for the BeatupMobiles */
  for (i = 0; i < numBeatups; i++)
  {
    carSold = rand() % 2;
    if (carSold)
    {
      profit = profit + (9200 - 42);
    }
  }
  cout << "We can expect to make $" << profit << "." << endl;
  return 0;
}