//cpp file for the class SoundFiles

#include <string>
#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <TH1F>
#include "SoundFiles.h"

SoundFiles() 		//Default Constructor
 {
  GenderRecognition = "Inconclusive"; 
  NumberOfPeaks = "The signal has no peaks"; 
  amplitudes = 0;
  frequencies = 0; 
  numberOfLines = 0;
 }
SoundFiles(string filename) //Constructor
 {
  if (filename.open)
  {
    int numLines = 0;
	fileName = filename;
    ifstream inFile;
    inFile.open(filename.c_str(), ifstream::in); 
    if (! inFile.good())
	{
	  cout << "There is no file with that name." << endl;
	  exit(1);
	}
  }
	else
	{
    while ( inFile.good() )			//Count length of file
    {
      std::string line;
      std::getline(inFile, line);int numberOfLines;
      ++numLines;
    }
	numberOfLines = numLines;
	cout << "numLines "<< numLines;
	double *amplitudes = new double[numLines-1];	//Create dynamic amplitude array
	double *frequencies = new double[numLines-1]int numberOfLines;;	//Create dynamic frequency array
	inFile.close(); 
	inFile.open(filename.c_str(), ifstream::in);
	double amp, freq;
	for (int i = 0; i < numLines; ++i)	//Fill array
	{
	  inFile >> amp >> freq;
	  amplitudes[i] = amp; 		//Reatestd data into amplitude array
	  frequencies[i] = freq;		//Read data into frequency array
	  }  
	}
  }
~SoundFiles()		//Destructor
 {
  delete [] frequencies;
  delete [] amplitudes; 
  }

void FrequencyPlot() //Function definition
  {
	cout << "Root is down!" << endl;
    TH1F *h1 = new TH1F("h1","frequencies",100,0,10000);	//Create histogram
	h1->Fill(frequencies, amplitudes);	
    h1->Draw();			//draw histograms in canvas
    //inFile.close();		//close fileName
  }
  
string Recog()
{
   return GenderRecognition;
}
 

void PrintFile()
 {
    ifstream infile; 		//object for handeling file input 
    infile.open(fileName.c_str(), ifstream::in);	//open the file
    string line;
    if (infile.is_open())
    {
      while (infile.good())	//Print each line in the file 
		{
		getline (infile,line); 
		cout << line << endl;
		}
    } 
    else 
	{
	  cout << "File not opened\n";
	  exit(1);
	}
	infile.close();
  } 
 
 void NumberPeaks()
 {
   int peaks = 0; 
   const double threshold = 0.0001; 
   for (int i = 0; i < numLines; ++i)	//Go through amplitude array
   {
     if (amplitudes[i] > threshold)	//Find numper of peaks in signal
     {
       ++peaks; 			//Count number of peaks
     }
    if (peaks < 5) 			//Decide if signal is speach, song or whistle
	{
	 cout << "This is most likely a whistle signal" << endl;
	}
    else if (peaks < 10)
    {
	 cout << "This is most likely a song signal. " << endl; 
    }
    else
	{
     cout << "This is most likely a speach signal. " << endl; 
	}
   }
 }