using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;

namespace TimeTextSquare
{
    class Program
    {
        static void Main(string[] args)
        {
            TextClock clock = new TextClock()
                {
                    Colour1 = ConsoleColor.Green,
                    Colour2 = ConsoleColor.DarkGray
                };
            Console.CursorVisible = false;
            Console.WindowWidth = 15;
            Console.WindowHeight = 8;
            clock.Time = DateTime.Now;
            while (true)
            {
                Console.Clear();
                clock.Time = DateTime.Now;
                //clock.Time = clock.Time.AddMinutes(5);
                Console.Title = clock.Time.ToLongTimeString();
                clock.WriteTimeSquare();

                System.Threading.Thread.Sleep(new TimeSpan(0, 0, 5));
            }
        }
    }
    class TextClock
    {
        readonly string[] clockText = new string[]
        {
            "ITSMATENQUARTER",
            "TWENTYHALFIVEVE",
            "PASTOMELEVENINE",
            "EIGHTWELVESEVEN",
            "TENTHREEFIVESIX",
            "FOURTWONEOCLOCK",
            ">>|>>|>>|>>|>>|"
        };

        public DateTime Time { get; set; }
        public ConsoleColor Colour1 { get; set; }
        public ConsoleColor Colour2 { get; set; }

        List<string> minuteHighlightStrings = new List<string>();
        List<string> highlightStrings = new List<string>();
        string hourHighlightString;
        bool highlightFirstA = false;

        void SetTimeStrings()
        {
            minuteHighlightStrings.Clear();
            highlightStrings.Clear();
            hourHighlightString = "";

            highlightStrings.Add("ITS");

            if (Time.Minute < 5)
                highlightStrings.Add("OCLOCK");
            else if (Time.Minute < 10)
                minuteHighlightStrings.Add("FIVE");
            else if (Time.Minute < 15)
                minuteHighlightStrings.Add("TEN");
            else if (Time.Minute < 20)
                minuteHighlightStrings.Add("QUARTER");
            else if (Time.Minute < 25)
                minuteHighlightStrings.Add("TWENTY");
            else if (Time.Minute < 30)
            {
                minuteHighlightStrings.Add("TWENTY");
                minuteHighlightStrings.Add("FIVE");
            }
            else if (Time.Minute < 35)
                highlightStrings.Add("HALF");
            else if (Time.Minute < 40)
            {
                minuteHighlightStrings.Add("TWENTY");
                minuteHighlightStrings.Add("FIVE");
            }
            else if (Time.Minute < 45)
                minuteHighlightStrings.Add("TWENTY");
            else if (Time.Minute < 50)
                minuteHighlightStrings.Add("QUARTER");
            else if (Time.Minute < 55)
                minuteHighlightStrings.Add("TEN");
            else if (Time.Minute < 60)
                minuteHighlightStrings.Add("FIVE");

            if (minuteHighlightStrings.Contains("QUARTER"))
                highlightFirstA = true;

            if (Time.Minute < 35 && Time.Minute >= 5)
                highlightStrings.Add("PAST");
            else if (Time.Minute >= 35)
                highlightStrings.Add("TO");

            int hour = Time.Hour;
            if (Time.Minute >= 35)
                hour++;
            if (hour > 12)
                hour -= 12;
            string[] hourStrings = new string[] { "TWELVE", "ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "EIGHT", "NINE", "TEN", "ELEVEN", "TWELVE" };
            hourHighlightString = hourStrings[hour];
        }

        public void WriteTimeSquare()
        {
            SetTimeStrings();
            Console.ForegroundColor = Colour2;

            for (int lineCounter = 0; lineCounter < clockText.Length - 1; lineCounter++)
            {
                string lineText = clockText[lineCounter];
                for (int charCounter = 0; charCounter < lineText.Length; charCounter++)
                {
                    string remainingText = lineText.Substring(charCounter);
                    bool found = false;
                    foreach (string highlightStr in highlightStrings)
                        if (remainingText.StartsWith(highlightStr))
                        {
                            found = true;
                            Console.ForegroundColor = Colour1;
                            Console.Write(highlightStr);
                            Console.ForegroundColor = Colour2;
                            charCounter += highlightStr.Length - 1;
                        }
                    if (lineCounter <= 1)
                    {
                        foreach (string highlightStr in minuteHighlightStrings)
                            if (remainingText.StartsWith(highlightStr))
                            {
                                found = true;
                                Console.ForegroundColor = Colour1;
                                Console.Write(highlightStr);
                                Console.ForegroundColor = Colour2;
                                charCounter += highlightStr.Length - 1;
                            }
                    }
                    else
                    {
                        if (remainingText.StartsWith(hourHighlightString))
                        {
                            found = true;
                            Console.ForegroundColor = Colour1;
                            Console.Write(hourHighlightString);
                            Console.ForegroundColor = Colour2;
                            charCounter += hourHighlightString.Length - 1;
                        }
                    }
                    if (!found)
                    {
                        if (highlightFirstA && remainingText[0] == 'A')
                        {
                            Console.ForegroundColor = Colour1;
                            Console.Write('A');
                            Console.ForegroundColor = Colour2;
                            highlightFirstA = false;
                        }
                        else
                            Console.Write(remainingText[0]);
                    }
                }
                Console.Write('\n');
            }
            string progressText = clockText[clockText.Length - 1];
            int intervalLength = 60 * 5;
            int current = Time.Minute - ((int)Math.Floor((double)Time.Minute / 5) * 5);
            current *= 60;
            current += Time.Second;
            int numHighlighted = (int)Math.Round(current / (double)(intervalLength / progressText.Length), MidpointRounding.AwayFromZero);
            //if (numHighlighted < 0)
            //    numHighlighted = 0;
            Console.ForegroundColor = Colour1;
            Console.Write(progressText.Substring(0, numHighlighted));
            Console.ForegroundColor = Colour2;
            Console.Write(progressText.Substring(numHighlighted));

            Console.ResetColor();
        }
    }
}