#include <stdio.h>
#include <iostream>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <thread>
#include <vector>
#include <common/string.hpp>
#include <common/profiler.hpp>
#include <common/block.hpp>
#include <common/fileio.hpp>
#include <common/utility.hpp>
#include <sstp/socketserver.hpp>
#include <sstp/clientsocketsender.hpp>

// https://www.man7.org/linux/man-pages/man2/accept.2.html

void handleServer(Block<String> &commands);
void handleClient(Block<String> &commands);

/// @brief 
/// @param argc 
/// @param argv [0] program. [1] SERVERMODE {port} [2] CLIENTMODE {serveripaddress} {serverport} SEND {FileName}
/// @return 
int main(int argc, char **argv)
{
  Profiler profiler;

  if(argc<2)
  {
    std::cout << "sstp SERVERMODE {port} | CLIENTMODE {serveripaddress} {serverport} {pathfileName}." << std::endl;
    std::cout << "SERVERMODE will listen on the specified port for a connection and receive the specified file." << std::endl;
    std::cout << "CLIENTMODE willl connect to the specified address and port and send the specfied file." << std::endl;
    return 1;
  }
  Block<String> arguments;
  for(int index=0;index<argc;index++)
  {
    String item(argv[index]);
    arguments.insert(item);
  }

  std::cout << argv[1] << std::endl;
  if(arguments[1]=="SERVERMODE")
  {
    handleServer(arguments);
  }
  else if(arguments[1]=="CLIENTMODE")
  {
    handleClient(arguments);
  }  
  else
  {
    std::cout << "Unknown command " << arguments[1] << std::endl;
  }
  return 0;
 
  std::cout << "Done, total took " << Utility::formatNumber(profiler.end()) << "(ms)" << std::endl;
}

/// @brief [0]=program [1]=SERVERMODE [2]={port}
/// @param commands 
void handleServer(Block<String> &commands)
{
  Profiler profiler;

  if(commands.size()!=3)
  {
    std::cout << "Missing required parameters" << std::endl;
    return;
  }
  int port = commands[2].toInt();
  std::cout << commands[1] << ":" << commands[2] << std::endl;
  SocketServer socketServer(commands[2].toInt());
  socketServer.listen();
  std::cout << "Done, total took " << Utility::formatNumber(profiler.end()) << "(ms)" << std::endl;
}

/// @brief [0]=program, [1]=CLIENTMODE, [2]=serveripaddress, [3]=serverport, [4]=pathfilename
/// @param commands 
void handleClient(Block<String> &commands)
{
  Profiler profiler;
  if(commands.size()!=5)
  {
    std::cout << "Missing required parameters" << std::endl;
    return;    
  }

  ClientSocketSender clientSocketSender(commands[2],commands[3].toInt());  
  bool returnCode = clientSocketSender.sendFile(commands[4]);
  if(!returnCode)
  {
    std::cout << "The transfer failed." << std::endl;
  }
  else
  {
      std::cout << "Transfer complete" << std::endl;
  }
  std::cout << "Done, total took " << Utility::formatNumber(profiler.end()) << "(ms)" << std::endl;
}