using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace project_slot_machine
{
    public class FruitMachine
    {
        public List<int[]> rows;

        public int tokensPlayed;

        public int points;

        public FruitMachine()
        {
            this.rows = new List<int[]>();
        }

        public void initialize()
        {
            for (int i = 0; i < 3; i++)
            {
                this.rows.Add(new int[3]);
            }
        }

        public bool wonInRow()
        {
            if(this.tokensPlayed == 1) {
                int[] middleRow = this.rows[1];
                return middleRow[0] == middleRow[1] && middleRow[1] == middleRow[2];
            }

            if(this.tokensPlayed == 2) {
                foreach( int[] row in this.rows) {
                    if (row[0] == row[1] && row[1] == row[2]) return true;
                }
            }

            return false;
        }

        public bool wonInColumn()
        {
            List<List<int>> cols = new List<List<int>>();
            for( int i = 0; i < this.rows.Count; i++) {
                cols[0][i] = this.rows[i][0];
                cols[1][i] = this.rows[i][1];
                cols[2][i] = this.rows[i][2];
            }

            if(this.tokensPlayed == 1)
            {
                //pick middle column
                var col = cols[1];
                // if in middle row exists two the same values return true;
                return col[0] == col[1] || col[1] == col[2];
            }

            if(this.tokensPlayed == 2)
            {
                // If in any of columns exits pair of the same values return true
                foreach (List<int> col in cols)
                {

                    if (col[0] == col[1] || col[1] == col[2]) return true;
                }
            }

            return false;
        }

        public int getPoints()
        {
            if (this.wonInRow() && this.tokensPlayed == 2) return 4;
            if (this.wonInRow() && this.tokensPlayed == 1) return 2;
            if (this.wonInColumn()) return 2;
            return 0;
        }

        public int play(int tokensToPlay)
        {
            if(tokensToPlay > 2) {
                throw new ArgumentException("Maximum tokens to play is 2");
            }
            this.tokensPlayed = tokensToPlay;

            return this.getPoints();
        }

        // Loop through each row and add random generated row;
        public void spin()
        {


            for (int i = 0; i < this.rows.Count(); i ++)
            {
                //3 = number of slots in row
                this.rows[i] = this.getRandRow(3);
            }
        }

        public int[] getRandRow(int slots)
        {
            Random rnd = new Random();
            int[] row = new int[3];
            row[0] = rnd.Next(1, 4); row[1] = rnd.Next(1, 4); row[2] = rnd.Next(1, 4);
            return row;
        }
    }
}