#include <stdio.h>
#include <iostream>
#include <cstring>
#include <fstream>
//#include <openssl/rsa.h>
//#include <openssl/pem.h>
//#include <openssl/err.h>
#include <exception>
#include <gpgme.h>
#include <boost/program_options.hpp>

#include <libtorrent/session.hpp>
#include <libtorrent/session_params.hpp>
#include <libtorrent/kademlia/dht_state.hpp>
#include <libtorrent/kademlia/dht_storage.hpp>

//#include <libtorrent/add_torrent_params.hpp>
//#include <libtorrent/torrent_handle.hpp>
//#include <libtorrent/alert_types.hpp>
#include <libtorrent/magnet_uri.hpp>
//#include <thread>
//#include <chrono>




namespace po=boost::program_options;

class mix
	{
	public:
		int id;
		std::string name;
		gpgme_data_t keydata;
		gpgme_ctx_t context;
		gpgme_error_t error;
		gpgme_key_t key;
		void init()
			{
			std::cout << "Mix starting..." << std::endl;
			if(std::ifstream("mix.conf"))
				{
				std::cout << "Config file existing" << std::endl;
  				this->read_settings();
  				std::cout << "name = " << name << std::endl;
				std::cout << "id = " << id << std::endl;
//				read_keys();
		                start_peer();
				}
			else
				{
				std::cout << "Config file does not exist. Exiting." << std::endl;
				std::exit(1);
				}
//				std::cout << "Looking for keys" << std::endl;
//				gpgme_check_version(NULL);
//				gpgme_new(&context);
//				create_keys();
			}

		void read_settings()

			{
			po::options_description desc("Options");
  			desc.add_options() ("name", po::value<std::string>(&name), "name");
  			desc.add_options() ("id", po::value<int>(&id), "id");
			po::variables_map vm;
			std::ifstream settings_file("mix.conf");
			vm = po::variables_map();
			po::store(po::parse_config_file(settings_file , desc), vm);
			po::notify(vm);
			}

		void read_keys()
			{
			gpgme_data_new_from_file(&keydata, "keys.gpg", 1);
			gpgme_op_import(context, keydata);
			gpgme_op_keylist_start (context, "mix", 0);
			while(!error)
				{
				error = gpgme_op_keylist_next (context, &key);
				if (error){break;}
				std::cout << key->subkeys->keyid << std::endl;
				if (key->uids && key->uids->name)
					{
					std::cout << key->uids->name << std::endl;
					}
				if (key->uids && key->uids->email)
					{
					std::cout << key->uids->email << std::endl;
					}
				}
			}
		void create_keys()
			{
			error=gpgme_op_createkey(context,"mix@pep.foundation",NULL,0,0,NULL,0);
			if(error)
				{
				std::cout << "Error generating keys" << error << std::endl;
				}
			else
				{
				std::cout << "Keys generated successfully" << std::endl;
				}
			}

      void start_peer()
         {
         lt::settings_pack p;
         p.set_int(lt::settings_pack::alert_mask,lt::alert_category::status | lt::alert_category::error);
         lt::session ses(p);
         std::cout << "libtorrent version: " << lt::version() << std::endl;
         std::cout << "announce ip: " << p.announce_ip << std::endl;       
         std::cout << "user agent: " << p.user_agent << std::endl;
         std::cout << "listen interfaces: " << p.listen_interfaces << std::endl;
         std::cout << "peer fingerprint: " << p.peer_fingerprint << std::endl;
         p.set_str(lt::settings_pack::dht_bootstrap_nodes, "dht.bootstrap.de:12345");
         std::cout << "dht bootstrap nodes: " << p.get_str(lt::settings_pack::dht_bootstrap_nodes)  << std::endl;

//         lt::dht_default_storage stor;
         lt::dht mydht;
         lt::entry e;
         std::cout << e << std::endl;

//         lt::add_torrent_params atp = lt::parse_magnet_uri("magnet:?xt=urn:btih:D540FC48EB12F2833163EED6421D449DD8F1CE1F&dn=Ubuntu%20desktop%2019.04%20(64bit)");         
//         atp.save_path=".";
//         lt::torrent_handle h = ses.add_torrent(std::move(atp));

//         for (;;)
//            {
//            std::vector<lt::alert*> alerts;
//            ses.pop_alerts(&alerts);
//               for (lt::alert const* a : alerts)
//                  {
//                  std::cout << a->message() << std::endl;
//                  if (lt::alert_cast<lt::torrent_finished_alert>(a))
//                     {
//                     std::cout << "Torrent finished" << std::endl;
//                     }
//                  if (lt::alert_cast<lt::torrent_error_alert>(a))
//                     {
//                     std::cout << "Torrent error" << std::endl;
//                     }

//                  }
//            }



//         lt::dht::dht_state dst;
//         dst=ses.dht_state();
//         std::cout << ses.dht_state << std::endl;



//         std::vector<lt::alert*> alerts; ses.pop_alerts(&alerts);
//         lt::alert a;
         }
		};


int main()
	{
	mix mix1;
	mix1.init();
	}