#include "libndiff.h"
#include "parser.h"
#include "ndiff_config.h"
#include "ndiff.h"
#include <fstream>

using namespace std;

void usage(){
	cerr << "Usage: ndiff [OPTIONS] FILES" << endl << endl;
	cerr << "Processing:" << endl;
//	cerr << "  -t: Attempt to track a host when it changes IP's but not the services it hosts." << endl << endl;
	cerr << "  -h: Display hostnames beside IP's - when available." << endl << endl;
	cerr << "Output:" << endl;
	cerr << "  -X <filename>: Output difference in a XML format, use '-' to output to stdout." << endl;
	cerr << "  -N <filename>: Output difference in a text format, use '-' to output to stdout." << endl;
	cerr << "  '-N -' is assumed if nothing is specified." << endl;
	cerr << endl;
	cerr << "Examples:";
	cerr << "  ndiff.pl -X - firstweek.xml secondweek.xml" << endl;
	exit(2);
}
int main(int argc, char **argv){
	string xmlName="", normName="";
	fstream xFile, nFile;
	vector<string> intputs;
	bool dispHost=false;
	libndiff n;
	int c;

	opterr = 0;

	while ((c = getopt (argc, argv, "X:N:ht")) != -1){
		switch (c) {
			case 'X':
				xmlName = optarg;
				break;
			case 'N':
				normName = optarg;
				break;
			case 'h':
				dispHost=true;
				break;
			case '?':
				usage();
			default:
				usage();
		}
	}
	n.showNames(dispHost);

	//there has to be SOME form of output
	if(xmlName=="" && normName==""){
		normName="-";
	}
	if(xmlName!="-" && !xmlName.empty()){
		xFile.open(xmlName.c_str(), fstream::out | fstream::app);
	}
	if(normName!="-" && !normName.empty()){
		nFile.open(normName.c_str(), fstream::out | fstream::app);
	}

	for (int index = optind; index < argc; index++){
		intputs.push_back(argv[index]);
	}

	while(intputs.size()>1){
		n.setPath(intputs[0], intputs[1]);
		if(!xmlName.empty()){
			if(xmlName=="-"){
				cout << n.getXML();
			}else{
				xFile << n.getXML();
			}
		}
		if(!normName.empty()){
			if(normName=="-"){
				cout << n.getSimple();
			}else{
				nFile << n.getSimple();
			}
		}
		intputs.erase(intputs.begin());
		n.purge();
	}
	if(xmlName!="-" && !xmlName.empty()){
		xFile.close();
	}
	if(normName!="-" && !normName.empty()){
		nFile.close();
	}

    return 0;
}