// Copyright 2015 by Artem Prilutskiy

#include "BrandMeisterBridge.h"
#include <string.h>
#include <stdlib.h>
#include <syslog.h>
#include <stdio.h>

#define ECHOLINK_DEFAULT_USER_NUMBER  1
#define ECHOLINK_DEFAULT_CORD_NUMBER  10
#define REGISTRY_CONFIGURATION_FILE   "/opt/BrandMeister/Registry.cnf"

BrandMeisterBridge::BrandMeisterBridge() :
  proxy(ECHOLINK_DEFAULT_CORD_NUMBER),
  store(REGISTRY_CONFIGURATION_FILE),
  talker(NULL)
{

}

BrandMeisterBridge::~BrandMeisterBridge()
{
  free(talker);
}

// Interface methods for ModuleEchoLink

const char* BrandMeisterBridge::getTalker()
{
  free(talker);
  uint32_t number = proxy.getTalkerID();

  char call[LONG_CALLSIGN_LENGTH];
  char text[SLOW_DATA_TEXT_LENGTH];
  if ((number != 0) &&
      (store.getCredentialsForID(number, call, text)))
  {
    asprintf(&talker, "%s %s", call, text);
    return talker;
  }

  asprintf(&talker, "DMR ID: %d", number);
  return talker;
}

void BrandMeisterBridge::setTalker(const char* call, const char* name)
{
  if (*call == '*')
  {
    // Do not process conference call-sign
    return;
  }

  const char* delimiter = strpbrk(call, " -\n");
  if (delimiter != NULL)
  {
    // Remove characters after call-sign
    size_t length = delimiter - call;
    char* buffer = (char*)alloca(length + 1);
    strncpy(buffer, call, length);
    call = buffer;
  }

  uint32_t number = store.getPrivateIDForCall(call);
  if (number == 0)
  {
    syslog(LOG_INFO, "DMR ID for call-sign %s not found", call);
    number = ECHOLINK_DEFAULT_USER_NUMBER;
  }

  syslog(LOG_DEBUG, "Set talker DMR ID to %d", number);
  proxy.setTalkerID(number);
}

void BrandMeisterBridge::handleChatMessage(const char* text)
{
  // CONF Russian Reflector, Open 24/7, Contacts: rv3dhc.link@qip.ru * Call CQ / Use pauses 2sec * [28/500]
  // R3ABM-L *DSTAR.SU DMR Bridge*
  // UB3AMO Moscow T I N A O
  // ->UA0LQE-L USSURIISK

  const char* delimiter;
  if ((strncmp(text, "CONF ", 5) == 0) &&
      ((delimiter = strstr(text, "\n->")) != NULL))
  {
    const char* call = delimiter + 3;
    setTalker(call, NULL);
  }
}