using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
/* Program Name:    Slot Machine Simulator
 * Author:          Garritt McCune
 * Date:            04/21/14
 * Purpose:         To simulate the function of a slot machine and determent the payout based on the number of matched fruit.
 */
namespace SlotMachineSimulator
{
    public partial class mainForm : Form
    {
        //store the total payout and total inserted money
        private decimal totalAmountInserted;
        private decimal totalPayout;

        public mainForm()
        {
            InitializeComponent();
        }

        private void spinButton_Click(object sender, EventArgs e)
        {
            //create a variable to store the user's input
            decimal amountInserted = 0;

            //begin by validating the user's input
            if (Decimal.TryParse(amountInsertedTextBox.Text, out amountInserted))
            {
                //create a random object
                Random rand = new Random();

                //get the images for the slots at random
                int pictureOne = rand.Next(fruitImageList.Images.Count);
                int pictureTwo = rand.Next(fruitImageList.Images.Count);
                int pictureThree = rand.Next(fruitImageList.Images.Count);

                decimal payout;

                //add to the total amount inserted to the machine
                totalAmountInserted += amountInserted;

                //check to see if any of the images match
                payout = CheckForMatches(pictureOne, pictureTwo, pictureThree, amountInserted);

                //add up the total amount of payout
                totalPayout += payout;

                //set the images according to the random index generated above
                slotPicture1.Image = fruitImageList.Images[pictureOne];
                slotPicture2.Image = fruitImageList.Images[pictureTwo];
                slotPicture3.Image = fruitImageList.Images[pictureThree];

                MessageBox.Show("Your payout: " + payout.ToString("C") + ".");

                amountInsertedTextBox.Focus();
                amountInsertedTextBox.SelectAll();
            }
            else
            {
                //display error and reset focus to the text box
                MessageBox.Show("Please enter a valid amount.", "Invalid Amount");
                amountInsertedTextBox.Focus();
                amountInsertedTextBox.SelectAll();
            }
        }

        private decimal CheckForMatches(decimal slotOne, decimal slotTwo, decimal slotThree, decimal amount)
        {
            //set the default payout
            decimal payout = 0;

            //check for any matches
            if (slotOne == slotTwo || slotOne == slotThree)
            {
                if (slotOne == slotTwo && slotOne == slotThree)
                {
                    //if all slots match multiply the amount by three
                    payout = amount * 3;
                }
                else
                {
                    //if only two match multiply the amount by two
                    payout = amount * 2;
                }   
            }
            else if (slotTwo == slotOne || slotTwo == slotThree)
            {
                if (slotTwo == slotOne && slotTwo == slotThree)
                {
                    //if all slots match multiply the amount by three
                    payout = amount * 3;
                }
                else
                {
                    //if only two match multiply the amount by two
                    payout = amount * 2;
                }
            }
            else if (slotThree == slotOne || slotThree == slotTwo)
            {
                if (slotThree == slotOne && slotThree == slotTwo)
                {
                    //if all slots match multiply the amount by three
                    payout = amount * 3;
                }
                else
                {
                    //if only two match multiply the amount by two
                    payout = amount * 2;
                }    
            }
            else
            {
                //if no matches are found, then the user has won nothing
                payout = 0;
            }

            return payout;
        }

        private void exitButton_Click(object sender, EventArgs e)
        {
            //display the total payout and total amount of money inserted
            MessageBox.Show(" You inserted a total of " + totalAmountInserted.ToString("C") + ".\n With a total payout of " + totalPayout.ToString("C") + ".", "Slot Machine Stats");

            //close the application
            Close();
        }

        private void exitFileMainMenu_Click(object sender, EventArgs e)
        {
            //display the total payout and total amount of money inserted
            MessageBox.Show(" You inserted a total of " + totalAmountInserted.ToString("C") + ".\n With a total payout of " + totalPayout.ToString("C") + ".", "Slot Machine Stats");

            //close the application
            Close();
        }

        private void resetEditMainMenu_Click(object sender, EventArgs e)
        {
            //start by redoing the pictures
            //create a random object again
            Random rand = new Random();

            //get the images for the slots at random
            int index = rand.Next(fruitImageList.Images.Count);
            int index2 = rand.Next(fruitImageList.Images.Count);
            int index3 = rand.Next(fruitImageList.Images.Count);

            //set the images according to the random index generated above
            slotPicture1.Image = fruitImageList.Images[index];
            slotPicture2.Image = fruitImageList.Images[index2];
            slotPicture3.Image = fruitImageList.Images[index3];

            //display the summary
            MessageBox.Show("You inserted a total of " + totalAmountInserted.ToString("C") + ".\n With a total payout of " + totalPayout.ToString("C") + ".", "Slot Machine Stats");

            //reset all the counters
            totalPayout = 0;
            totalAmountInserted = 0;

            //clear the form
            amountInsertedTextBox.Text = "";
            amountInsertedTextBox.Focus();
            amountInsertedTextBox.SelectAll();
        }
    }
}