ToonBridge/Toon/WebSocketSubscription.cpp

#include "WebSocketSubscription.h"
#include <json.hpp>
#include <Logging.h>
#include <sstream>


namespace ToonBridge {
namespace Toon {

WebSocketSubscription::WebSocketSubscription(const ToonSettings& toonSettings) :
	m_toonSettings(toonSettings)
{
	OpenWebSocket();
}

WebSocketSubscription::~WebSocketSubscription()
{
	CloseWebSocket();
}

void WebSocketSubscription::Reconnect()
{
	CloseWebSocket();
	OpenWebSocket();
}

void WebSocketSubscription::OpenWebSocket()
{
	std::stringstream url;
	url << "https://api.toon.eu/toon/v3/";
	url << m_toonSettings.agreementId;
	url << "/webhooks";

	std::vector<std::string> subscribedActions;
	subscribedActions.push_back("Thermostat");
	subscribedActions.push_back("PowerUsage");
	subscribedActions.push_back("BoilerError");

	nlohmann::json data;
	data["applicationId"] = m_toonSettings.applicationId;
	data["callbackUrl"] = m_toonSettings.callbackUrl;
	data["subscribedActions"] = subscribedActions;

	Http::HttpRequest request(url.str());
	request.Method(Http::HttpRequest::Method::POST);
	request.Headers(RequestHeaders());
	request.Data(data.dump());

	try
	{
		m_httpClient.Open(request);
	}
	catch (const std::exception& e)
	{
		std::stringstream ss;
		ss << "Error Opening Websocket: " << std::endl;
		ss << "Type : " << typeid(e).name() << std::endl;
		ss << "ERROR: " << e.what() << std::endl;

		Logging::Log(Logging::Severity::Error, ss.str());

		throw std::runtime_error("Error Connecting to Toon WebService.");
	}
}

void WebSocketSubscription::WebSocketStatus()
{
	std::stringstream url;
	url << "https://api.toon.eu/toon/v3/";
	url << m_toonSettings.agreementId;
	url << "/webhooks/";

	Http::HttpRequest request(url.str());
	request.Headers(RequestHeaders());

	nlohmann::json answer = nlohmann::json::parse(m_httpClient.Open(request));
}

void WebSocketSubscription::CloseWebSocket()
{
	std::stringstream url;
	url << "https://api.toon.eu/toon/v3/";
	url << m_toonSettings.agreementId;
	url << "/webhooks/";
	url << m_toonSettings.applicationId;

	Http::HttpRequest request(url.str());
	request.Method(Http::HttpRequest::Method::DELETE);
	request.Headers(RequestHeaders());

	std::string returnValue = m_httpClient.Open(request);

	std::stringstream ss;
	ss << "Closing Websocket: " << returnValue << std::endl;
	Logging::Log(Logging::Severity::Info, ss.str());
}

std::vector<std::string> WebSocketSubscription::RequestHeaders()
{
	std::vector<std::string> headers;
	headers.push_back("cache-control: no-cache");
	headers.push_back("accept: application/json");
	headers.push_back("content-type: application/json");

	std::stringstream header;
	header << "authorization: Bearer " << m_toonSettings.accessToken;
	headers.push_back(header.str());

	header.str("");
	header << "X-CommonName: " << m_toonSettings.displayCommonName;
	headers.push_back(header.str());

	header.str("");
	header << "X-Agreement-ID: " << m_toonSettings.agreementId;
	headers.push_back(header.str());

	return headers;
}

} // namespace Toon
} // namespace ToonBridge