#include <fstream>
#include <iostream>
#include <experimental/filesystem>
#include <boost/program_options.hpp>
#include <iostream>
#include <string>

using namespace boost::program_options;
using std::string;
namespace fs = std::experimental::filesystem;

int main(int argc, char *argv[])
{
    options_description desc{"Options"};
    desc.add_options()
            ("help,h", "Help for arguments")
            ("source,s", value<string>()->default_value("/home/yuriy/projects/temp/source"),
             "Folder you want to copy from")
            ("dest,d", value<string>()->default_value("/home/yuriy/projects/temp/dist"),
             "Folder you want to copy into")
            ("filter,f", value<string>()->default_value("bar"),
             "Name of parent folder you want to use for filter");

    variables_map vm;
    store(parse_command_line(argc, argv, desc), vm);
    notify(vm);
    if (vm.count("help"))
    {
          std::cout << desc << '\n';
    }
    std::cout << "source: " << vm["source"].as<string>() << '\n';
    std::cout << "dest: " << vm["dest"].as<string>() << '\n';
    string dest = vm["dest"].as<string>();
    int copied_size =0;
    for(fs::directory_entry p : fs::recursive_directory_iterator(vm["source"].as<string>()))
    {
        if (p.status().type() == fs::file_type::regular)
        {
            fs::path iterFilePath = p.path();
            if (iterFilePath.parent_path().filename() == vm["filter"].as<string>())
            {
                fs::copy(iterFilePath, dest);
                copied_size += fs::file_size(iterFilePath);
                std::cout << iterFilePath << '\n';
            }
        }
    }
    std::cout << "devi: " << copied_size / (1024*1024.) << '\n';
    return 0;
}