using AdventOfCode.Core.Shared.IO;
using System;
using System.Reflection;

namespace AdventOfCode.Solutions._2024
{
    public class Day02 : IChallange
    {
        public int Year => 2024;
        public int Day => 2;

        private readonly IInputReader _inputReader;

        public Day02(IInputReader inputReader)
        {
            _inputReader = inputReader;
            _inputReader.SetInput(this);
        }

        //2
        //
        public async Task<string> GetSolutionPart1()
        {
            //_inputReader.SetSampleInput(true);
            string[] data = await _inputReader.ReadAsArrayString();
            int save = data.Length;
            foreach (string line in data)
            {
                int[] intData = line.Split(' ').Select(int.Parse).ToArray();
                bool isIncrease = intData[1] < intData[0];
                for (int index = 1; index < intData.Length; index++)
                {
                    int trueDiff = intData[index - 1] - intData[index];
                    int diff = Math.Abs(trueDiff);
                    if (diff < 1 || diff > 3)
                    {
                        save--;
                        break;
                    } 

                    if (isIncrease && trueDiff < 0)
                    {
                        save--;
                        break;
                    }
                    else if (!isIncrease && trueDiff > 0)
                    {
                        save--;
                        break;
                    }
                }
            }

            return save.ToString();
        }

        //
        //
        public async Task<string> GetSolutionPart2()
        {
            string[] data = await _inputReader.ReadAsArrayString();
            int save = data.Length;
            foreach (string line in data)
            {
                int[] intData = line.Split(' ').Select(int.Parse).ToArray();
                bool isIncrease = intData[1] < intData[0];
                for (int index = 1; index < intData.Length; index++)
                {
                    int trueDiff = intData[index - 1] - intData[index];
                    int diff = Math.Abs(trueDiff);
                    if (diff < 1 || diff > 3)
                    {
                        save--;
                        break;
                    }

                    if (isIncrease && trueDiff < 0)
                    {
                        save--;
                        break;
                    }
                    else if (!isIncrease && trueDiff > 0)
                    {
                        save--;
                        break;
                    }
                }
            }

            return save.ToString();
        }
    }
}