#pragma once

#include <QObject>
#include <vector>

class QLocalServer;
class QJsonDocument;

namespace Epistmool::Server {

struct ConnectionId {
	int index;
	int generation;

	static ConnectionId createInvalid();
	bool isInvalid() const;

	bool operator==(const ConnectionId&) const = default;
};

uint qHash(const ConnectionId& id, uint seed = 0);

class ConnectionManager : public QObject
{
	Q_OBJECT
	class Private;

private:
	QLocalServer* mLocal = nullptr;

	struct Connection;
	std::vector<Connection> mConnections;

public:
	explicit ConnectionManager(QObject* parent = nullptr);
	~ConnectionManager();

	bool isLocalConnectionsEnabled() const;
	void setLocalConnectionsEnabled(bool enabled);

	void replyMessage(ConnectionId id, const QJsonDocument& message);

signals:
	void connectionEstablished(Epistmool::Server::ConnectionId id);
	void connectionDropped(Epistmool::Server::ConnectionId id);
	void messageRecieved(const QJsonDocument& message, Epistmool::Server::ConnectionId id);
};

} // namespace Epistmool::Server