/*  readoptions.h

    Michael Chappell - FMRIB Image Analysis Group

    Copyright (C) 2009 University of Oxford  */

/*  Part of FSL - FMRIB's Software Library
    http://www.fmrib.ox.ac.uk/fsl
    fsl@fmrib.ox.ac.uk
    
    Developed at FMRIB (Oxford Centre for Functional Magnetic Resonance
    Imaging of the Brain), Department of Clinical Neurology, Oxford
    University, Oxford, UK
    
    
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#if !defined(ReadOptions_h)
#define ReadOptions_h

#include <string>
#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <stdio.h>
#include "utils/options.h"
#include "utils/log.h"

using namespace Utilities;

namespace OXASL {

class ReadOptions {
 public:
  static ReadOptions& getInstance();
  ~ReadOptions() { delete ropt; }
  
  Option<bool> help;

  Option<string> datafile;
  Option<string> maskfile;
  Option<int> ntis;
  
  Option<string> inblockform;
  Option<string> inaslform;
  Option<bool> ispairs;

  Option<bool> splitpairs;
  Option<bool> tcdiff;
  
  Option<string> outblockform;
  Option<string> out;

  Option<string> meanout;
  Option<string> splitout;
  
  Option<string> epochout;
  Option<int> epochlen;
  Option<int> epochover;
  Option<string> epochunit;

  Option<string> deconvout;
  Option<string> aif;

  void parse_command_line(int argc, char** argv);
  
 private:
  ReadOptions();  
  const ReadOptions& operator=(ReadOptions&);
  ReadOptions(ReadOptions&);

  OptionParser options; 
      
  static ReadOptions* ropt;
  
};

 inline ReadOptions& ReadOptions::getInstance(){
   if(ropt == NULL)
     ropt = new ReadOptions();
   
   return *ropt;
 }

 inline ReadOptions::ReadOptions() :

help(string("-h,--help"), false,
		    string("display this message"),
		    false, no_argument),
   //input files
   datafile(string("--data,--datafile"), string("ASL datafile"),
			  string("data file"),
		     true, requires_argument),  
   maskfile(string("--mask"), string("maskfile\n"),
	    string("mask"),
	    false, requires_argument),
   //input file information
   ntis(string("--ntis"),0,
	string("Number of TIs in file"),
	true, requires_argument),
   inblockform(string("--ibf,--inblockform"),string("tis"),
	       string("Input block format:\n          rpt - blocks of measurements that include all TIs\n          tis - blocks of repeated measurements at a single TI"),
	       false,requires_argument),
   inaslform(string("--iaf,--inaslform"),string("diff"),
	     string("ASL data form:\n          diff - differenced data\n          tc - Tag-Control pairs (Note: sets --pairs)"),
	     false,requires_argument),
   ispairs(string("-P,--pairs,--inpairs"),false,
	   string("Data contains adjacent pairs of measuremnts (e.g. Tag, Control)"),
	   false,no_argument),
   //asaq(string("--asaq"),false,
   //	string("Data is as aquired: same as --blocked --pairs"),
   //	false,no_argument),

   // manipulation options
   splitpairs(string("--spairs"),false,
	      string("Split the pairs within the data, e.g. to separate tag and control images in output"),
	      false,no_argument),
   tcdiff(string("--diff"), false,
	   string("Take the difference between the pairs, i.e. Tag control difference\n"),
	   false,no_argument),

   //basic output
   outblockform(string("--obf,--outblockform"),string("tis"),
	       string("Output block format (for --out=):\n          rpt - blocks of measurements that include all TIs\n          tis - blocks of repeated measurements at a single TI"),
		  false,requires_argument),
   out(string("--out"),string("Out filename"),
       string("Output data file"),
       false,requires_argument),

   // other output options
   meanout(string("-m,--mean"),string(""),
	  string("Output ASL data having taken mean at each TI to file"),
	   false, requires_argument),
   splitout(string("--split"),string(""),
	    string("Split data into separate files each each TI, specify filename root\n"),
	    false, requires_argument),

   epochout(string("-e,--epoch"),string(""),
	    string("Output epochs of ASL data (takes mean at each TI within the epoch)"),
	    false, requires_argument),
   epochlen(string("--elen,--epochlen"),1,
	    string("Length of epochs in number of repeats"),
	    false, requires_argument),
   epochover(string("--eol,--epochol"),0,
	     string("Ammount of overlap between epochs in number of repeats"),
	     false, requires_argument),
   epochunit(string("--eunit,--epochunit"),string("rpt"),
	     string("Epochs to be determined over:\n      rpt - repeats in the data {default}\n      tis - TIs in the data\n"),
	     false,requires_argument),

   deconvout(string("--deconv"),string(""),
	     string("Deconvolution of data with arterial input functions"),
	     false,requires_argument),
   aif(string("--aif"),string(""),
       string("Arterial input functions for deconvolution (4D volume, one aif for each voxel within mask)"),
       false,requires_argument),

  
   options("asl_file","asl_file --verbose\n")
   {
     try {
       options.add(help);

       options.add(datafile);
       options.add(maskfile);

       options.add(ntis);
       options.add(inblockform);
       options.add(inaslform);
       options.add(ispairs);
 
       options.add(splitpairs);
       options.add(tcdiff);

       options.add(out);
       options.add(outblockform);

       options.add(meanout);
       options.add(splitout);

       options.add(epochout);
       options.add(epochlen);
       options.add(epochover);
       options.add(epochunit);

       options.add(deconvout);
       options.add(aif);

        }
     catch(X_OptionError& e) {
       options.usage();
       cerr << endl << e.what() << endl;
     } 
     catch(std::exception &e) {
       cerr << e.what() << endl;
     }    
     
   }

}
#endif