namespace AdventOfCodeLibrary._2022
{
    using AdventOfCodeLibrary.Shared;

    public class Day10Part1 : Answerable
    {
        public override int Year { get; set; } = 2022;
        public override int Day { get; set; } = 10;
        public override int Part { get; set; } = 1;

        private int Cycles = 0;
        private int X = 1;
        private readonly int[] measureCycles = { 20, 60, 100, 140, 180, 220 };

        private int measureResult = 0;

        public override string GetAnswer(byte[] data)
        {
            string[] commands = GetAsStringArray(data);

            for (int commandIndex = 0; commandIndex < commands.Length; commandIndex++)
            {
                if (commands[commandIndex].Equals("noop"))
                {
                    ProcessCycles(1, 0);
                }

                // command should start with addx
                string[] commandValues = commands[commandIndex].Split(' ');
                if (commandValues[0].Equals("addx"))
                {
                    ProcessCycles(2, Convert.ToInt32(commandValues[1]));
                }
            }
            return measureResult.ToString();
        }

        internal void ProcessCycles(int cycles, int valueToAdd)
        {
            for (int i = 0; i < cycles; i++)
            {
                Cycles++;
                if (measureCycles.Contains(Cycles))
                {
                    measureResult += Cycles * X;
                }
            }

            X += valueToAdd;
        }
    }
}