#include <vector>
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;

const int max_applications_num = 1000;

//ToDo  //Declare global variables


void Tokenize(string line, vector<string> & tokens, string delimiters = "\t "){
string token = "";
        string OneCharString = " ";
        for (int i=0; i<line.size(); i++)
                if (find(delimiters.begin(), delimiters.end(), line[i])!=delimiters.end()) // line[i] is one of the delimiter characters
       		{
			if (token != "")
                        	tokens.push_back(token);
                        token = "";
                }
                else
                {
                        OneCharString[0] = line[i];
                        token +=OneCharString;
                }

        if (token != "")
                tokens.push_back(token);
}

void SaveApplication(const vector<string>& tokens){

	string authors = tokens[1];
        string title = tokens[2];
	string venue = tokens[3];  
 	int year = atoi(tokens[4].c_str());
 	string presentation = tokens[5]; 

	//ToDo
	cout << "in save" << endl;
}

void remove_application(int pos){

	//ToDo
	cout << "in remove" << endl;
}


void sort(){

	//ToDo
	cout << "in sort" << endl;
}

void print(){
	//ToDo
	cout << "in print" << endl;
}

void ExecuteCommands(const char* fname){
	ifstream inf;
	inf.open(fname);

	string line;
	while (getline(inf, line).good()){
		vector<string> tokens;
		Tokenize(line, tokens, "\t ");
		if (tokens.size()==0)
			continue;
		
		if (tokens[0].compare("save_application")==0)
			SaveApplication(tokens);			
		
		else if (tokens[0].compare("remove_application")==0)
			remove_application(atoi(tokens[1].c_str()));
		
		else if (tokens[0].compare("sort")==0)
			sort();
		
		else if (tokens[0].compare("print")==0)
			print();
	}

	inf.close();
}

int main(int argc, char** argv){
	if (argc != 2){
		cout << "usage: executable.o command.txt\n";
		return 1;
	}

	ExecuteCommands(argv[1]);
	return 0;
}