//Amber Kommavongsa
//test cases
//input: 3 output: INVALID, MENU
// single chip: (input was 1,2) Output: [2.0 1.5 2.0 1.5 1.0 0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0] WINNINGS: $0 MENU// the path never goes below zero
// single chip: (input 1,7) output: [7.0 7.5 8.0 7.5 6.0 6.5 7.0 7.5 7.0 6.5 6.0 5.5 5.0] WINNINGS: $0  MENU //path never goes above eight
//multiple chips: (input was 2, 100, 1) output: WINNINGS: $29600.00 Average: $296.00 MENU
//input: 3 output: GOODBYE
#include <iostream>
#include <iomanip>
#include <ctime>
#include <cstdlib>
#include <limits>
using namespace std;

//FUNCTIONS

int falling_through_slots(int slot, bool output)//simulates the chip falling through the twelve slots
{
	double finalslot = slot;
	double const SHIFT = .5;
	int r = rand() % 2;
		for (int peg_counter = 0; peg_counter < 12; peg_counter++)//simulates where the chip falls for each chip
		{
			int r = rand() % 2;
			if (finalslot < 8 && r == 1 || finalslot == 0)//moves right
			{
				finalslot += SHIFT;
			}
			else if (finalslot > 0 && r == 0 || finalslot == 8)//moves left
			{
				finalslot -= SHIFT;
			}
			if (output == false)
			{

			}
			if (output == true)
			{
				cout << fixed << setprecision(1) << " " << finalslot;
			}

		}
	return finalslot;
}

double prize_moneyTotal(int finalslot)//computes total prize money
{
	const double PRIZE0 = 100.00;
	const double PRIZE1 = 500.00;
	const double PRIZE2 = 1000.00;
	const double PRIZE3 = 0;
	const double PRIZE4 = 10000.00;
	const double PRIZE5 = 0;
	const double PRIZE6 = 1000.00;
	const double PRIZE7 = 500.00;
	const double PRIZE8 = 100.00;
	int slotfinal = finalslot;
	double prize = 0;
	switch (slotfinal)
	{
	case 0: prize += PRIZE0; break;
	case 1: prize += PRIZE1; break;
	case 2: prize += PRIZE2; break;
	case 3: prize += PRIZE3; break;
	case 4: prize += PRIZE4; break;
	case 5: prize += PRIZE5; break;
	case 6: prize += PRIZE6; break;
	case 7: prize += PRIZE7; break;
	case 8: prize += PRIZE8; break;
	}
	return prize;
}

//function that tests the validity of the user input, must reject the user input if string or invalid number *hardest part
bool TEST_userinput(int min, int max, int userinput)
{
		int result = userinput;
		if (min < userinput && userinput < max)
			return true;
		else if (userinput == min || userinput == max)
			return true;
		else if (userinput < min || userinput > max)
		{
			cout << "Invalid character, please input a valid number:\n";
			return false;
		}
		else if ('a' < userinput && userinput < 'z')
		{
			cout << "Invalid character, please input a valid number:\n";
			return false;
		}
		else if ('A' < userinput && userinput < 'Z')
		{
			cout << "Invalid character, please input a valid number:\n";
			return false;
		}
		else if ('A' == userinput || 'Z' == userinput || 'a' == userinput || 'z' == userinput)
		{
			cout << "Invalid character, please input a valid number:\n";
			return false;
		}
}

int main()
{
	const int QUIT = 4;
	const bool VALID = true;
	const bool INVALID = false;
	const bool SHOW_OUTPUT = true;
	const bool NO_OUTPUT = false;
	const int SLOT_MIN = 0;
	const int SLOT_MAX = 8;
	const int max_chips = std::numeric_limits<int>::max();

	int userchoice = 0;
	double select_slot;
	double total_prize;
	int chips;
	bool valid_response = true;
	srand(time(0));

	while (userchoice != QUIT)
	{
		cout << "MENU: Please select one of the following options:\n";
		cout << "1 - Drop a single chip into one slot\n";//first game that can be played
		cout << "2 - Drop Multiple chips into one slot\n";//2nd game that can be played
		cout << "3 - Drop Multiple chips into multiple slots\n";
		cout << "4 - Quit the Program\n";
		int userchoice;
		cin >> userchoice;
		valid_response = TEST_userinput(1, 4, userchoice);

		if (userchoice == 1)
		{
			cout << "***SINGLE CHIP***\n";
			cout << "Pick a slot numbers 0 - 8 to drop the chip:";
			cin >> select_slot;
			valid_response = TEST_userinput(SLOT_MIN, SLOT_MAX, select_slot);//validates the user's input
			if (valid_response == true)//ONly continues on if user input is true;
			{
			cout << "\[ " << setprecision(1) << select_slot;
			select_slot = falling_through_slots(select_slot, SHOW_OUTPUT);//prints out the location of the chip
			cout << "\]\n";
			total_prize = prize_moneyTotal(select_slot);//computes total prize money
			cout << "Money Won: $" << fixed << setprecision(2) << total_prize << endl;
			}
		}
		if (userchoice == 2)
		{
			double prize;
			double total_prize = 0;
			cout << "***MULTIPLE CHIPS***\n";
			cout << "How many chips would you like to drop:";
			cin >> chips;
			valid_response = TEST_userinput(1, max_chips, chips);
			if (valid_response == VALID)
			{
				cout << "Select a slot 0 - 8 to drop the chips:";
				cin >> select_slot;
				valid_response = TEST_userinput(SLOT_MIN, SLOT_MAX, select_slot);
				if (valid_response == VALID)
				{
					for (int i = 0; i < chips; i++)//drops multiple chips
					{
						double final_slot = select_slot;//resets the selected slot each time to the number the user input
						final_slot = falling_through_slots(select_slot, NO_OUTPUT);
						prize = prize_moneyTotal(final_slot);
						total_prize += prize;
					}
					double prize_average = total_prize / chips;//computes average
					cout << "Total won: $" << fixed << setprecision(2) << total_prize << endl;//outputs the total money earned
					cout << "Average won per chip: $" << fixed << setprecision(2) << prize_average << endl;
				}
			}
		}
		if (userchoice == 3)
		{
			cout << "**MULTIPLE CHIPS IN MULTIPLE SLOTS**\n";
			cout << "Indicate how many chips would you like to drop into each slot:";
			cin >> chips;
			valid_response = TEST_userinput(1, max_chips, chips);
			if (valid_response == VALID)
			{
				for (int slot_number = SLOT_MIN; slot_number <= SLOT_MAX; slot_number++)//moves the slot number up one for each time it goes through
				{
					double total_prize = 0;
					int final_slot = slot_number;
					for (int i = 0; i < chips; i++)
					{
						final_slot = falling_through_slots(slot_number, NO_OUTPUT);
						double prize = prize_moneyTotal(final_slot);
						total_prize += prize;
					}
					double prize_average = total_prize / chips;
					cout << "For SLOT " << slot_number << " you won: $" << fixed << setprecision(2) << total_prize << "\nand per chip: $" << fixed << setprecision(2) << prize_average << endl;
					cout << "\n";
				}
			}
		}
		while (userchoice == 4)
		{
			cout << "GOODBYE" << endl;
			system("pause");
			return 0;
		}
	}
}