#include "TText.h"
#include "TH1F.h"
#include "TProfile.h"
#include "TMath.h"
#include "TF1.h"
#include "TLegend.h"
#include "TCanvas.h"
 //
#include "TROOT.h"
//#include "TStyle.h"
#include "TTree.h"
#include "TFile.h"
#include "TGraphErrors.h"
#include "TStyle.h"
#include <string>
#include <cmath>
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
//

using namespace std;

// for debug running:
const int debug = 1; //DS test
const bool regeneratePlots = true; //DS test
const int kNMaxDays = 200;

// constants; reading data
const int kNFields = 17;
const int kMaxLineLength = 200; 
const int kNSkip = 57; // skip first dates with only partial info, and until we were done with reprocessing

const int kNCat = 10; // Cat 0 to 9; 0:Empty 1:Untested 2:OK 3:Unknown 4:Bad 1 5:Bad 2 6:Bad 3 7:C1 8:C2 9:C3
const char *kCatStr[] = { "Empty", "Untested", "OK", "Unknown", "Bad1", "Bad2", "Bad3", "C1", "C2", "C3" };
// we use kOK = 2, kBad2 = 5, kC1 = 7, kC2 = 8
const int kLineColor[4] = { 1, 2, 6, 4 };
const int kCatUse[kNCat] = { 0, 0, 1, 0, 0, 1, 0, 1, 1, 0 };
const int kCountUse[kNCat] = { 1, 0, 1, 0, 0};

const int kNCount = 5; // TotalChips TotalTests Trays Tester1 Tester2
const char *kCountStr[] = { "TotalChips", "TotalTests", "Trays", "Tester1", "Tester2" };

const int kNonQR = 1260; // offset for 10 non-QR trays in system, before we started with QR chips  
const int kNonQRCat[kNCat] = { 0, 516, 591, 105, 0, 48, 0, 0, 0, 0}; 
const int kNonQRCount[kNCount] = { 1260, 0, 10, 0, 0}; // just put in info for the non-QR trays
const int kNonQRTested = 744;

int analyse_file(const char *infile)
{
  gStyle->SetOptStat(0);
  gStyle->SetOptFit(0111);
  gStyle->SetStatX(0.5); 

  ifstream in;
  in.open(infile);
  cout << " reading file " << infile << endl;
    
  // for each line
  int idate = 0;
  char cdate[11];
  int itime = 0;
  char ctime[9];

  int ic = 0;
  int iCat[kNCat] = {0};
  int iCount[kNCount] = {0};

  char hname[100];
  char hdesc[100];
  TH1F* hCat[kNCat];
  TH1F* hCount[kNCount];
  TH1F* hCatQR[kNCat];
  TH1F* hCountQR[kNCount];
  TH1F* hTestedChips;
  TH1F* hTestedChipsQR;

  for (ic=0; ic<kNCat; ic++) {
    sprintf(hname, "hCat_%d", ic);
    sprintf(hdesc, "%s", kCatStr[ic]);
    hCat[ic] = new TH1F(hname, hdesc, kNMaxDays, -0.5, kNMaxDays - 0.5);
    sprintf(hname, "hCatQR_%d", ic);
    sprintf(hdesc, "%sQR", kCatStr[ic]);
    hCatQR[ic] = new TH1F(hname, hdesc, kNMaxDays, -0.5, kNMaxDays - 0.5);
  }

  for (ic=0; ic<kNCount; ic++) {
    sprintf(hname, "hCount_%d", ic);
    sprintf(hdesc, "%s", kCountStr[ic]);
    hCount[ic] = new TH1F(hname, hdesc, kNMaxDays, -0.5, kNMaxDays - 0.5);
    sprintf(hname, "hCountQR_%d", ic);
    sprintf(hdesc, "%sQR", kCountStr[ic]);
    hCountQR[ic] = new TH1F(hname, hdesc, kNMaxDays, -0.5, kNMaxDays - 0.5);
  }
  hTestedChips = new TH1F("hTestedChips", "hTestedChips", kNMaxDays, -0.5, kNMaxDays - 0.5);
  hTestedChipsQR = new TH1F("hTestedChipsQR", "hTestedChipsQR", kNMaxDays, -0.5, kNMaxDays - 0.5);
  
  int nlines  = 0; // over whole file

  // sample loop, inside block of interesting values, between zeros
  int nf = 0;
  char line[kMaxLineLength];
  char firstDate[11];

  while ( in.good() ) {
    in.getline(line, kMaxLineLength);
    if (! in.good()) break;
    nlines++;      

    // split line into the expected fields 
    nf = 0;
    char * pch;
    pch = strtok (line," ");
    while (pch != NULL) {
      // printf ("nf %d pch %s\n",nf, pch);
      if (nf == 0) sprintf(cdate, "%s", pch);
      else if (nf == 1) sprintf(ctime, "%s", pch);
      else {
	ic = nf - 2;
	if (ic < kNCat) iCat[ic] = atoi(pch);
	else iCount[ic - kNCat] = atoi(pch);
      }
      pch = strtok (NULL, " ");
      nf++;
    }
    if (debug>2) { cout << "nlines " << nlines << " nf " << nf << endl; }

    if (nlines > kNSkip) {
      idate = nlines - kNSkip;
      if (idate == 1) sprintf(firstDate, "%s", cdate);
      if (debug>2) { cout << "Fill hist nlines " << nlines  << endl; }
      for (ic=0; ic<kNCat; ic++) {
	hCat[ic]->SetBinContent(idate, iCat[ic]);
	hCatQR[ic]->SetBinContent(idate, iCat[ic] - kNonQRCat[ic]);
      }
      for (ic=0; ic<kNCount; ic++) {
	hCount[ic]->SetBinContent(idate, iCount[ic]);
	hCountQR[ic]->SetBinContent(idate, iCount[ic] - kNonQRCount[ic]);
      }

      hTestedChips->SetBinContent(idate, iCount[0] - iCat[1]);
      hTestedChipsQR->SetBinContent(idate, iCount[0] - iCat[1] - kNonQRTested );
    }
  } // in

  int maxDate = nlines - kNSkip;

  if (regeneratePlots) {
    // make plots
    // fit channel info, and store fit parameters (with errors) and chi2 values
    char name[50], description[100];
    TCanvas* cAll = new TCanvas("cAll", "Test statistics #", 900, 600);
    TCanvas* cAllQR = new TCanvas("cAllQR", "Test statistics #", 900, 600);

    TLegend* legend = new TLegend(0.1,0.6,0.4,0.9);
    TLegend* legendQR = new TLegend(0.1,0.6,0.4,0.9);
    char leginfo[100];

    int nAll = 0;

    for (ic=0; ic<kNCat; ic++) { 
      if (kCatUse[ic] > 0) {
	hCat[ic]->SetMarkerStyle(20);
	hCat[ic]->GetXaxis()->SetRangeUser(0, maxDate );      
	hCat[ic]->GetXaxis()->SetTitle( Form("Days since %s", firstDate) );
	hCat[ic]->GetYaxis()->SetTitle("Yield");

	cAll->cd();
	hCat[ic]->SetLineColor(kLineColor[nAll]);
	if (nAll == 0) {
	  hCat[ic]->SetTitle("Test Statistics - All Chips");
	  hCat[ic]->Draw();
	}
	else {
	  hCat[ic]->Draw("SAME");
	}
	sprintf(leginfo, "%s : %d", kCatStr[ic], iCat[ic]);  
	legend->AddEntry(hCat[ic], leginfo, "l");

	// QR
	hCatQR[ic]->SetMarkerStyle(20);
	hCatQR[ic]->GetXaxis()->SetRangeUser(0, maxDate );      
	hCatQR[ic]->GetXaxis()->SetTitle( Form("Days since %s", firstDate) );
	hCatQR[ic]->GetYaxis()->SetTitle("Yield");

	cAllQR->cd();
	hCatQR[ic]->SetLineColor(kLineColor[nAll]);
	if (nAll == 0) {
	  hCatQR[ic]->SetTitle("Test Statistics - QR Chips");
	  hCatQR[ic]->Draw();
	}
	else {
	  hCatQR[ic]->Draw("SAME");
	}
	sprintf(leginfo, "%s : %d", kCatStr[ic], iCat[ic] - kNonQRCat[ic]);
	legendQR->AddEntry(hCatQR[ic], leginfo, "l");

	nAll++;
      }
    } // ic

    TText *t = new TText();
    t->SetTextSize(0.07);
    t->SetTextColor(2);
    TDatime now; 
    sprintf(leginfo, "%d", now.GetDate() - 1);  

    cAll->cd();
    legend->Draw();
    t->DrawTextNDC(0.12, 0.5, leginfo);
    cAll->Modified();
    cAll->SaveAs("png/allCat.png");
    cAll->SaveAs("pdf/allCat.pdf");

    cAllQR->cd();
    legendQR->Draw();
    t->DrawTextNDC(0.12, 0.5, leginfo);
    cAllQR->Modified();
    cAllQR->SaveAs("png/allCatQR.png");
    cAllQR->SaveAs("pdf/allCatQR.pdf");


    // Count plots
    TLegend* legendCount = new TLegend(0.1,0.6,0.4,0.9);
    TLegend* legendCountQR = new TLegend(0.1,0.6,0.4,0.9);
    nAll = 0;
    for (ic=0; ic<kNCount; ic++) { 
      if (kCountUse[ic] > 0) {
	hCount[ic]->SetMarkerStyle(20);
	hCount[ic]->GetXaxis()->SetRangeUser(0, maxDate);      
	hCount[ic]->GetXaxis()->SetTitle( Form("Days since %s", firstDate) );
	hCount[ic]->GetYaxis()->SetTitle("Yield");
	
	cAll->cd();
	hCount[ic]->SetLineColor(kLineColor[nAll]);
	if (nAll == 0) {
	  hCount[ic]->SetTitle("Test Statistics - All Chips");
	  hCount[ic]->Draw();
	}
	else {
	  hCount[ic]->Draw("SAME");
	}
	sprintf(leginfo, "%s : %d", kCountStr[ic], iCount[ic]);  
	legendCount->AddEntry(hCount[ic], leginfo, "l");
	
	// QR
	hCountQR[ic]->SetMarkerStyle(20);
	hCountQR[ic]->GetXaxis()->SetRangeUser(0, maxDate );      
	hCountQR[ic]->GetXaxis()->SetTitle( Form("Days since %s", firstDate) );
	hCountQR[ic]->GetYaxis()->SetTitle("Yield");
	
	cAllQR->cd();
	hCountQR[ic]->SetLineColor(kLineColor[nAll]);
	if (nAll == 0) {
	  hCountQR[ic]->SetTitle("Test Statistics - QR Chips");
	  hCountQR[ic]->Draw();
	}
	else {
	  hCountQR[ic]->Draw("SAME");
	}
	sprintf(leginfo, "%s : %d", kCountStr[ic], iCount[ic] - kNonQRCount[ic]);  
	legendCountQR->AddEntry(hCountQR[ic], leginfo, "l");
      
	nAll++;
      }
    } // ic

    sprintf(leginfo, "%d", now.GetDate() - 1);  
    cAll->cd();
    legendCount->Draw();
    t->DrawTextNDC(0.12, 0.5, leginfo);
    cAll->Modified();
    cAll->SaveAs("png/allCount.png");
    cAll->SaveAs("pdf/allCount.pdf");

    cAllQR->cd();
    legendCountQR->Draw();
    t->DrawTextNDC(0.12, 0.5, leginfo);
    cAllQR->Modified();
    cAllQR->SaveAs("png/allCountQR.png");
    cAllQR->SaveAs("pdf/allCountQR.pdf");
    
  } // plots

  return 0;
}

int main (int argc, char *argv[])
{
  if (argc<2) {
    printf("not enough arguments: argc = %d\nSyntax should be:\n./history.exe statfilename\n",argc);
    printf("Example:\n./history.exe teststat.log\n");
    return -1;
  }

  char* infile = argv[1];

  int iret = analyse_file(infile);
  return iret;
}