/******************************************************************************
 * Icinga 2                                                                   *
 * Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/)        *
 *                                                                            *
 * This program is free software; you can redistribute it and/or              *
 * modify it under the terms of the GNU General Public License                *
 * as published by the Free Software Foundation; either version 2             *
 * of the License, or (at your option) any later version.                     *
 *                                                                            *
 * This program is distributed in the hope that it will be useful,            *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
 * GNU General Public License for more details.                               *
 *                                                                            *
 * You should have received a copy of the GNU General Public License          *
 * along with this program; if not, write to the Free Software Foundation     *
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ******************************************************************************/

#ifndef HOST_H
#define HOST_H

namespace icinga
{

class Service;

/**
 * An Icinga host.
 *
 * @ingroup icinga
 */
class I2_ICINGA_API Host : public DynamicObject
{
public:
	typedef shared_ptr<Host> Ptr;
	typedef weak_ptr<Host> WeakPtr;

	Host(const Dictionary::Ptr& properties);
	~Host(void);

	static bool Exists(const String& name);
	static Host::Ptr GetByName(const String& name);

	String GetAlias(void) const;
	Dictionary::Ptr GetGroups(void) const;

	Dictionary::Ptr GetMacros(void) const;
	Dictionary::Ptr GetDowntimes(void) const;
	Dictionary::Ptr GetComments(void) const;
	Dictionary::Ptr GetHostDependencies(void) const;
	Dictionary::Ptr GetServiceDependencies(void) const;
	String GetHostCheck(void) const;

	AcknowledgementType GetAcknowledgement(void);
	void SetAcknowledgement(AcknowledgementType acknowledgement);

	double GetAcknowledgementExpiry(void) const;
	void SetAcknowledgementExpiry(double timestamp);

	shared_ptr<Service> GetHostCheckService(void) const;
	set<Host::Ptr> GetParentHosts(void) const;
	set<shared_ptr<Service> > GetParentServices(void) const;

	bool IsReachable(void);
	bool IsInDowntime(void) const;
	bool IsUp(void);

	shared_ptr<Service> ResolveService(const String& name) const;

	set<shared_ptr<Service> > GetServices(void) const;
	static void InvalidateServicesCache(void);

	static void ValidateServiceDictionary(const ScriptTask::Ptr& task,
	    const std::vector<icinga::Value>& arguments);

protected:
	void OnAttributeChanged(const String& name, const Value& oldValue);

private:
	static bool m_InitializerDone;

	static map<String, vector<weak_ptr<Service> > > m_ServicesCache;
	static bool m_ServicesCacheValid;

	static void ObjectCommittedHandler(const ConfigItem::Ptr& item);
	static void ObjectRemovedHandler(const ConfigItem::Ptr& item);

	static void ValidateServicesCache(void);
};

}

#endif /* HOST_H */