#include <iostream>
#include <string>
#include <vector>
#include <stdexcept>

using namespace std;

#include "person.h"
#include "util.h"

const string usage = "usage: app <input file> <output file>";

int main(int argc, char * argv []) {
    if(argc != 3) {
        cerr << usage << endl;
        return 1;
    }
    string input_filename(argv[1]);
    string output_filename(argv[2]);
    try {
        vector<person> people = parse_file(input_filename);
        save_file(output_filename, people);
    }
    catch(runtime_error e) {
        cerr << e.what() << endl;
        return 1;
    }
    return 0;
}