using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
namespace Lvvwd.Test
{
    [TestClass]
    public class BowlingCalculatorTest
    {
        BowlingCalculator sut;
        [TestInitialize]
        public void Init()
        { sut = new BowlingCalculator(); }
        //all  0s
        [TestMethod]
        public void Calculate_AllZeroTest()
        {
            sut.Score = new List<int> { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
            int result = sut.CalculateScore();
            Assert.AreEqual(result, 0);
        }
        //all  1s
        [TestMethod]
        public void Calculate_AllOnesTest()
        {
            sut.Score = new List<int> { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
            int result = sut.CalculateScore();
            Assert.AreEqual(result, 20);
        }

        //spare 9, 1, 1, 0s
        //all  1s
        [TestMethod]
        public void Calculate_Spare()
        {
            sut.Score = new List<int> { 9, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
            int result = sut.CalculateScore();
            Assert.AreEqual(sut.Frames[0], 11);
            Assert.AreEqual(result, 12);
        }

        [TestMethod]
        public void Calculate_Strike()
        {
            sut.Score = new List<int> { 10, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
            int result = sut.CalculateScore();
            Assert.AreEqual(result, 14);
            Assert.AreEqual(sut.Frames[0], 12);
        }

        [TestMethod]
        public void Calculate_TenthFrameSpare()
        {
            sut.Score = new List<int> { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 1, 10 };
            int result = sut.CalculateScore();
            Assert.AreEqual(result, 21);
            Assert.AreEqual(sut.Frames[9], 20);
        }
        [TestMethod]
        public void Calculate_TenthFrameStrike()
        {
            sut.Score = new List<int> { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 10 };
            int result = sut.CalculateScore();
            Assert.AreEqual(result, 31);
            Assert.AreEqual(sut.Frames[9], 30);
        }
    }
    public class BowlingCalculator
    {
        internal List<int> Score;
        internal int[] Frames = new int[10];
        internal int CalculateScore()
        {
            var index = 0;
            for (int i = 0; i < 10; i++)
            {

                if (Score[index] == 10)
                {
                    Frames[i] = Score[index] + Score[index + 1] + Score[index + 2];
                    index++;
                }
                else if (Score[index] + Score[index + 1] == 10)
                {
                    Frames[i] = Score[index] + Score[index + 1] + Score[index + 2];
                    index += 2;
                }
                else
                {
                    Frames[i] = Score[index] + Score[index + 1];
                    index += 2;
                }
            }
            return Frames.Sum();
        }
    }
}