#include "APRS-IS.h"

APRS_IS::APRS_IS(const String & user, const String & passcode, const String & tool_name, const String & version)
	: _user(user), _passcode(passcode), _tool_name(tool_name), _version(version)
{
}

bool APRS_IS::connect(const String & server, const int port)
{
	const String login = "user " + _user + " pass " + _passcode + " vers " + _tool_name + " " + _version + "\n\r";
	return connect_(server, port, login);
}

bool APRS_IS::connect(const String & server, const int port, const String & filter)
{
	const String login = "user " + _user + " pass " + _passcode + " vers " + _tool_name + " " + _version + " filter " + filter + "\n\r";
	return connect_(server, port, login);
}

bool APRS_IS::connect_(const String & server, const int port, const String & login_line)
{
	if(!_client.connect(server.c_str(), port))
	{
		return false;
	}
	sendMessage(login_line);
	// TODO: implement check if auth was successfull!
	//while(!available());
	return true;
}

bool APRS_IS::connected()
{
	return _client.connected();
}

bool APRS_IS::sendMessage(const String & message)
{
	if(!connected())
	{
		return false;
	}
	_client.println(message);
	return true;
}

bool APRS_IS::sendMessage(const std::shared_ptr<APRSMessage> message)
{
	if(!connected())
	{
		return false;
	}
	_client.println(message->encode());
	return true;
}

void APRS_IS::action(std::shared_ptr<APRSMessage> elem, int rssi, float snr)
{
	sendMessage(elem);
}

int APRS_IS::available()
{
	return _client.available();
}

String APRS_IS::getMessage()
{
	String line;
	if (_client.available() > 0)
	{
		line = _client.readStringUntil('\n');
	}
	return line;
}

std::shared_ptr<APRSMessage> APRS_IS::getAPRSMessage()
{
	String line;
	if (_client.available() > 0)
	{
		line = _client.readStringUntil('\n');
	}
	if(line.length() == 0 || line.startsWith("#"))
	{
		return 0;
	}
    std::shared_ptr<APRSMessage> msg = std::shared_ptr<APRSMessage>(new APRSMessage());
	msg->decode(line);
	emit(msg);
	return msg;
}