///
/// Copyright (c) 2021 Sensus Slovensko a.s.
///
using System;
using System.IO;
using System.Windows.Forms;
using Common.Iperl;

namespace FeatureVectorCalculator
{
    public partial class CalculatorWnd : Form
    {
        public const int MaxOptoDataCount = 40000;
        OptoTelegramRaw[] optoData;
        Int64 volumeRawExtLast;
        Int64 timestampExtLast;


        public CalculatorWnd()
        {
            InitializeComponent();

            optoData = new OptoTelegramRaw[MaxOptoDataCount];
            for (int i = 0; i < MaxOptoDataCount; i++)
            {
                optoData[i] = new OptoTelegramRaw();
            }
        }

        private void browseButton_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            var dr = ofd.ShowDialog();
            rawFileComboBox.Text = ofd.FileName;
        }

        private void processButton_Click(object sender, EventArgs e)
        {
            if (optoData == null) return;

            int counter = 0;
            int startIx = -1;
            int endIx = -1;

            using (StreamReader reader = new StreamReader(rawFileComboBox.Text))
            {
                string line;
                while ((line = reader.ReadLine()) != null && counter < MaxOptoDataCount)
                {
                    int ix = line.IndexOf(" :\t");
                    
                    if (ix >= 0)
                    {
                        if (optoData[counter].UpdateFromString(line.Substring(ix + 3), counter, 0, ref volumeRawExtLast, ref timestampExtLast, true))
                        {
                            if (line.EndsWith("####  start test  ####"))
                            {
                                startIx = counter;
                                optoData[counter].Flags = OptoTelegramFlags.OK_TestStart;
                            }
                            else if (line.EndsWith("####  end of test  ####"))
                            {
                                endIx = counter;
                                optoData[counter].Flags = OptoTelegramFlags.OK_TestEnd;
                            }
                        }
                    }
                    else
                    {
                        optoData[counter].Flags = OptoTelegramFlags.InvalidTelegram;
                    }

                    counter++;
                }

                reader.Close();
            }

            float[] featureVector = new float[9];
            Common.Utils.CalculateFeatureVector(optoData, counter, startIx, endIx, ref featureVector);

            resultsTextBox.Clear();
            for (int i = 0; i < 9; i++)
            {
                resultsTextBox.Text += string.Format("X{0} = {1}\r\n", i + 1, featureVector[i]);
            }
        }
    }
}