using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Mtrk2Mbseq
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

            //only reads first track
            string inputFile = @"c:\temp\mtrkbassline.csv";
            int lineCount = File.ReadLines(inputFile).Count();
            string notesAgain = string.Empty;
            List<string> noteCollection = new List<string>();

            foreach (string line in File.ReadLines(inputFile))
            {
               if (line.Substring(0,1) == ";"){
                   string[] rowData = line.Split(';');
                   string note = rowData[5].Trim();

                   if ((note.Length > 0) && (note != "off"))
                   {
                       string octave = note.Substring(2, 1);
                       note = note.Substring(0, 2).Replace("-", string.Empty);
                       string midiNote = getNoteValue(note, octave);
                       noteCollection.Add(midiNote);
                   }
                   else
                   {
                       note = "x";
                       noteCollection.Add(note);
                   }
                   notesAgain = string.Join(" ", noteCollection.ToArray());
                   
               }
            }

            Console.WriteLine("1:" + notesAgain.ToString());
        }

        private string getNoteValue(string note, string octave)
        {
            Dictionary<string, int> midiNoteValues = new Dictionary<string, int>()
            {
                    //midi note, octave 0 values
            	    {"C", 0},{"C#", 1},{"D", 2},{"D#", 3},{"E", 4},{"F", 5},{"F#", 6},{"G", 7},
                    {"G#", 8},{"A", 9},{"A#", 10},{"B", 11},
            };

            int octavevalue = Convert.ToInt32(octave) * 12 -12; //drop 1 oct after convert .. buzz is higher
            string midiNote = (midiNoteValues[note] + octavevalue).ToString();
            return midiNote;

        }
    }
}