/******************************************************************************
 * 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.             *
 ******************************************************************************/

#include "i2-icinga.h"

using namespace icinga;

REGISTER_TYPE(Notification, NULL);

Notification::Notification(const Dictionary::Ptr& properties)
	: DynamicObject(properties)
{ }

Notification::~Notification(void)
{ }

bool Notification::Exists(const String& name)
{
	return (DynamicObject::GetObject("Notification", name));
}

Notification::Ptr Notification::GetByName(const String& name)
{
	DynamicObject::Ptr configObject = DynamicObject::GetObject("Notification", name);

	if (!configObject)
		BOOST_THROW_EXCEPTION(invalid_argument("Notification '" + name + "' does not exist."));

	return dynamic_pointer_cast<Notification>(configObject);
}

Service::Ptr Notification::GetService(void) const
{
	Host::Ptr host = Host::GetByName(Get("host_name"));
	String service = Get("service");

	if (service.IsEmpty())
		return host->GetHostCheckService();
	else
		return host->GetServiceByShortName(service);
}

String Notification::GetNotificationCommand(void) const
{
	return Get("notification_command");
}

Dictionary::Ptr Notification::GetMacros(void) const
{
	return Get("macros");
}

void Notification::SendNotification(void)
{
	vector<Value> arguments;
	arguments.push_back(static_cast<Notification::Ptr>(GetSelf()));
	ScriptTask::Ptr task;
	task = InvokeMethod("notify", arguments, boost::bind(&Notification::NotificationCompletedHandler, this, _1));

	if (!task->IsFinished()) {
		/* We need to keep the task object alive until the completion handler is called. */

		m_Tasks.insert(task);
	}
}

void Notification::NotificationCompletedHandler(const ScriptTask::Ptr& task)
{
	m_Tasks.erase(task);

	try {
		(void) task->GetResult();

		Logger::Write(LogInformation, "icinga", "Completed sending notification for service '" + GetService()->GetName() + "'");
	} catch (const exception& ex) {
		stringstream msgbuf;
		msgbuf << "Exception occured during notification for service '"
		       << GetService()->GetName() << "': " << diagnostic_information(ex);
		String message = msgbuf.str();

		Logger::Write(LogWarning, "icinga", message);
	}
}