/*******************************************************************************
 * Copyright (c) 2010 Nokia and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Nokia - Initial API and implementation
 *******************************************************************************/
#include "TCFContext.h"
#include "ContextManager.h"
#include "AgentUtils.h"

#undef remove

/*
 * Create a new context.
 */
Context::Context(const ContextID& parentID, const ContextID& internalID) {
	this->internalID = internalID;
	this->parentID = parentID;

	Initialize();

	// Don't add the context to any context cache here as there are different
	// caches for different purposes.
	// See ContextManager for more.
}

Context::Context(const ContextID& parentID, const ContextID& internalID, Properties& props) {
	this->internalID = internalID;
	this->parentID = parentID;
	this->properties = props;
	Initialize();
}

Context::~Context() {
	properties.clear();

	// delete remaining children.
	//
	// This makes a copy.
	std::list<Context *> remainingKids = GetChildren();

	for (std::list<Context *>::iterator iter = remainingKids.begin();
		iter != remainingKids.end(); iter++) {
		Context* kid = *iter;
		delete ContextManager::findContext(kid->GetID());
	}

	// Remove this context from global cache.
	ContextManager::removeContext(GetID());
}

void Context::Initialize()
{
	SetProperty(PROP_ID, PropertyValue(internalID));
	SetProperty(PROP_PARENT_ID, PropertyValue(parentID));
}

ContextID Context::GetID() const {
	return internalID;
}

ContextID Context::GetParentID() const {
	return parentID;
}

Properties& Context::GetProperties() {
	return properties;
}

void Context::AddChild(Context* child) {
	children_.push_back(child);
}

void Context::RemoveChild(Context* child) {
	children_.remove(child);
}

std::list<Context*>& Context::GetChildren() {
	return children_;
}

PropertyValue& Context::GetProperty(const std::string& key) {
	return properties[key];
}

void Context::SetProperty(const std::string& key, const PropertyValue& value) {
	properties[key] = value;
}