#ifndef PORT_H
#define PORT_H

#include <list>
#include <string>
#include <gtkmm.h>
#include <jack/jack.h>
#include "rect.h"

//
// Jack port names look like client_name:port_name
// A proposal is to add groups by separating the port_name with a period
// resulting in client_name:port_group.port_suffix.
// e.g. system:main_out.L
//      system:main_out.R
//

struct Client;
struct PortGroup;
struct Port;

typedef std::list<Client *> ClientList;
typedef std::list<PortGroup *> PortGroupList;
typedef std::list<Port *> PortList;

enum ConnectionMode
{
	CM_UNKNOWN,
	CM_NONE,
	CM_PARTIAL,
	CM_FULL
};

struct Client;
struct PortGroup;
struct Port;

struct Base {
	virtual int get_type() const = 0;

	ConnectionMode ConnectedTo(Base *b)
	{
		switch (b->get_type()) {
			case 0: return ConnectedTo((Client *)b);
			case 1: return ConnectedTo((PortGroup *)b);
			case 2: return ConnectedTo((Port *)b);
			default: return CM_UNKNOWN;
		}
	}

	virtual ConnectionMode ConnectedTo(Client *client) = 0;
	virtual ConnectionMode ConnectedTo(PortGroup *group) = 0;
	virtual ConnectionMode ConnectedTo(Port *port) = 0;
};

struct Client : Base
{
	std::string   m_name;
	bool          m_is_input;
	bool          m_is_midi;
	PortGroupList m_groups;
	PortList      m_ports;
	Cairo::TextExtents extents;
	bool          m_expanded;
	Rect          rect;

	virtual ConnectionMode ConnectedTo(Port *port);
	virtual ConnectionMode ConnectedTo(PortGroup *group);
	virtual ConnectionMode ConnectedTo(Client *client);

	virtual int get_type() const { return 0; }
};

struct PortGroup : Base
{
	std::string   m_name;
	JackPortFlags m_flags;
	PortList      m_ports;
	Cairo::TextExtents extents;
	bool          m_expanded;
	Rect          rect;

	virtual ConnectionMode ConnectedTo(Port *port);
	virtual ConnectionMode ConnectedTo(PortGroup *group);
	virtual ConnectionMode ConnectedTo(Client *client);

	virtual int get_type() const { return 1; }
};

struct Port : Base
{
	jack_port_t   *m_port;
	JackPortFlags  m_flags;
	std::string    m_name;
	bool           m_is_midi;
	Client        *m_client;
	PortGroup     *m_group;
	PortList       m_connections;
	Cairo::TextExtents extents;
	Rect           rect;

	virtual ConnectionMode ConnectedTo(Port *port);
	virtual ConnectionMode ConnectedTo(PortGroup *group);
	virtual ConnectionMode ConnectedTo(Client *client);

	virtual int get_type() const { return 2; }
};

#endif // PORT_H