#include "include/socket.h"

Socket::Socket(std::string url, std::function<void(const std::string)> toLog)
    : url(url), toLog(std::move(toLog))
{
#ifdef IBM
  // WSA INIT
  int a = 0;
#endif
#ifdef APL
  int a = 0;
#endif
#ifdef LIN
  int s;
  s = socket(AF_INET, SOCK_STREAM, 0);
  if (s < 0) {
    toLog("Error creating socket.");
    return;
  }
  struct sockaddr_in sa;
  memset(&sa, 0, sizeof(sa));
  sa.sin_family = AF_INET;
  sa.sin_addr.s_addr =
      inet_addr("136.243.123.153"); // address of german-airlines.de
  sa.sin_port = htons(443);
  socklen_t socklen = sizeof(sa);
  if (connect(s, (struct sockaddr *)&sa, socklen)) {
    toLog("Error connecting to server.");
    return;
  }
  SSL_library_init();
  SSLeay_add_ssl_algorithms();
  SSL_load_error_strings();
  const SSL_METHOD *meth = TLSv1_2_client_method();
  SSL_CTX *ctx = SSL_CTX_new(meth);
  ssl = SSL_new(ctx);
  if (!ssl) {
    toLog("Error creating SSL.");
    logSSL();
    return;
  }
  sock = SSL_get_fd(ssl);
  SSL_set_fd(ssl, s);
  int err = SSL_connect(ssl);
  if (err <= 0) {
    std::ostringstream msg;
    msg << "Error creating SSL connection.  err=" << err;
    toLog(msg.str());
    logSSL();
    return;
  }
  std::ostringstream msg;
  msg << "SSL connection using " << SSL_get_cipher(ssl);
  toLog(msg.str());
#endif
  // PLATFORM AGNOSTIC
}

Socket::~Socket()
{
  // PLATFORM AGNOSTIC
#ifdef IBM
  // WSA DEINIT
  int a = 0;
#endif
}

void Socket::sendData(data d)
{
  if (strcmp(d.path, lastPath) != 0) {
    strcpy(lastPath, d.path);
    if (util::generateMD5(d.path, lastHash, toLog)) {
      strcpy(lastHash, "NOT SET");
    }
  }

  nlohmann::json json = {
      {"altitude", d.alt},
      {"vs", d.vs},
      {"ias", d.ias},
      {"magHdg", d.magHeading},
      {"truHdg", d.truHdg},
      {"totFuel", d.totFuelKg},
      {"fuelFlow", d.ff},
      {"hash", lastHash},
  };

  {
    std::lock_guard<std::mutex> lock(wsLock);
    // SEND
  }
}

#ifdef LIN
void Socket::logSSL()
{
  int err;
  while ((err = ERR_get_error())) {
    char *str = ERR_error_string(err, 0);
    if (!str)
      return;
    toLog(str);
  }
}
#endif