using System;
using System.Collections.Generic;
using System.Text;

namespace Lotto_Exercise
{
    class LottoKupon
    {
        private int numsPerRow = 7;

        private int rows;

        public int[][] Coupon
        {
            get { return GenerateCoupon(); }
        }

        public LottoKupon(int rows)
        {
            this.rows = rows;
        }

        // Træk vindertal
        // ... implementer denne metode

        // Opsætning af kupon og print til txt fil
        public void PrintCoupon()
        {
            Console.WriteLine($"Lotto {DateTime.Now}");
            Console.WriteLine(" ");
            Console.WriteLine("1-uge");
            Console.WriteLine("LYN-LOTTO");
            Console.WriteLine(" ");

            int count = 1;

            foreach (int[] rows in Coupon)
            {
                //string[] printed = new string[]

                string linenumber = count >= 10 ? string.Format("{0}. ", count) : string.Format(" {0}. ", count);

                Console.Write(linenumber);

                foreach (int number in rows)
                {
                    string numberFormat = number.ToString();

                    if (number < 10)
                    {
                        numberFormat = "0" + number.ToString();
                    }
                    Console.Write($"{numberFormat} ");
                }
                Console.WriteLine(" ");

                count++;
            }
        }

        // Genererer det ønsket antal rækker.
        private int[][] GenerateCoupon()
        {
            int[][] coupon = new int[rows][];

            for (int i = 0; i < rows; i++)
            {
                coupon[i] = NumberSequence();
            }

            return coupon;
        }

        // Genererer 7 tilfældige og unikke tal
        private int[] NumberSequence()
        {
            int[] numbers = new int[numsPerRow];

            for (int i = 0; i < numbers.Length; i++)
            {
                int nextNumber = RandomNumber();

                while (Array.IndexOf(numbers, nextNumber) != -1)
                {
                    nextNumber = RandomNumber();
                }

                numbers[i] = nextNumber;
            }

            Array.Sort(numbers);

            return numbers;
        }

        // Genererer et tilfældigt tal indenfor det givne range (1-36, begge inkl.)
        private int RandomNumber()
        {
            int minRange = 1;
            int maxRange = 37;

            if(numsPerRow > maxRange)
            {
                Console.WriteLine("numsPerRow er større end maxRange --> uendelig loop: fikses");
            }

            return new Random().Next(minRange, maxRange);
        }

    }
}