using System;
using System.IO;
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;

namespace WindowsFormsApp9
{
    public partial class Form1 : Form
    {
        public static List<Cards> pool;
        public static int index = 0;
        public static Random rng;
        public static Boolean showAnswer = true;
        public static int rights = 0;
        public static int total = 0;

        public static String TOP_ALIGN = "\n\n\n\n\n";

        public class Cards
        {
            public string Q;
            public string A;

            public Cards()
            {
                Q = A = "";
            }

            public Cards(params string[] tokens)
            {
                Q = tokens[0];
                A = tokens[1];
            }
        }

        public Form1()
        {
            InitializeComponent();

            FlashCard.SelectionAlignment = HorizontalAlignment.Center;
            Score_TextBox.TextAlign = HorizontalAlignment.Center;

            rng = new Random();
            pool = new List<Cards>();

            string slacker;

            // Normally, I would use "Add New Item" in Visual Studios to place a text file that by
            // default is 2 directories above the one containing the executable, but I figure since
            // you may already be placing image files into the executable-directory, why not place the
            // cards file here as well?

            using (StreamReader inFile = new StreamReader("cards.txt"))
            {
                slacker = inFile.ReadLine();
                while (slacker != null)
                {
                    pool.Add(new Cards(slacker.Split('#')[0], slacker.Split('#')[1]));
                    slacker = inFile.ReadLine();
                }
            }
/*
            pool.Add(new Cards("What is the return type of a Predicate?", "Boolean"));
            pool.Add(new Cards("What is the correct bracket notation for a 3-D jagged array?", "[][][]")); // Conventional == [ , , ]
            pool.Add(new Cards("Describe the functionality of a SortedList.", "This is Dictionary collection that maintains sorted order, and is memory-efficient."));
            pool.Add(new Cards("What is the default scope of attributes/methods defined within a class?", "Private"));
*/

            index = rng.Next(pool.Count);
            FlashCard.Text = TOP_ALIGN + pool[index].Q;
        }

        private void FlashCard_Click(object sender, EventArgs e)
        {
            if (showAnswer)
            {
                FlashCard.Text = TOP_ALIGN + pool[index].A;
                showAnswer = false;
            }
            else
            {
                FlashCard.Text = TOP_ALIGN + pool[index].Q;
                showAnswer = true;
            }
        }

        private void Response_Button(object sender, EventArgs args)
        {
            /*
            if (index < pool.Count)
                index++;
            */
            Button alpha = sender as Button;

            //if (alpha.Text.CompareTo("Right") == 0) // So forth and so on
            //    rights++;

            if (alpha == Right_Button)
            {
                rights++;
            }

            index = rng.Next(pool.Count);
            total++;
            progressBar1.PerformStep();

            Score_TextBox.ForeColor = Color.FromArgb(255, (int)(255 * (1 - (float)rights / total)),
                                                     (int)(255 * ((float)rights / total)),
                                                     0);

            Score_TextBox.Text = String.Format("{0:0.00%}", (float)rights/total);

            if (progressBar1.Value == progressBar1.Maximum)
            {
                History_TextBox.AppendText(Score_TextBox.Text + "  ");
                Score_TextBox.Text = "";
                progressBar1.Value = 0;
                rights = 0;
                total = 0;
            }

            showAnswer = true;
            FlashCard.Text = TOP_ALIGN + pool[index].Q;
        }
    }
}