/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/

#include "qt5informationnodeinstanceserver.h"

#include <QQuickItem>
#include <QQuickView>

#include "servernodeinstance.h"
#include "childrenchangeeventfilter.h"
#include "propertyabstractcontainer.h"
#include "propertybindingcontainer.h"
#include "propertyvaluecontainer.h"
#include "instancecontainer.h"
#include "createinstancescommand.h"
#include "changefileurlcommand.h"
#include "clearscenecommand.h"
#include "reparentinstancescommand.h"
#include "changevaluescommand.h"
#include "changebindingscommand.h"
#include "changeidscommand.h"
#include "removeinstancescommand.h"
#include "nodeinstanceclientinterface.h"
#include "removepropertiescommand.h"
#include "valueschangedcommand.h"
#include "informationchangedcommand.h"
#include "pixmapchangedcommand.h"
#include "commondefines.h"
#include "changestatecommand.h"
#include "childrenchangedcommand.h"
#include "completecomponentcommand.h"
#include "componentcompletedcommand.h"
#include "createscenecommand.h"
#include "tokencommand.h"
#include "removesharedmemorycommand.h"

#include "dummycontextobject.h"

#include <designersupportdelegate.h>

namespace QmlDesigner {

Qt5InformationNodeInstanceServer::Qt5InformationNodeInstanceServer(NodeInstanceClientInterface *nodeInstanceClient) :
    Qt5NodeInstanceServer(nodeInstanceClient)
{
}

void Qt5InformationNodeInstanceServer::sendTokenBack()
{
    foreach (const TokenCommand &command, m_tokenList)
        nodeInstanceClient()->token(command);

    m_tokenList.clear();
}

void Qt5InformationNodeInstanceServer::token(const TokenCommand &command)
{
    m_tokenList.append(command);
    startRenderTimer();
}

bool Qt5InformationNodeInstanceServer::isDirtyRecursiveForNonInstanceItems(QQuickItem *item) const
{
    static DesignerSupport::DirtyType informationsDirty = DesignerSupport::DirtyType(DesignerSupport::TransformUpdateMask
                                                                              | DesignerSupport::ContentUpdateMask
                                                                              | DesignerSupport::Visible
                                                                              | DesignerSupport::ZValue
                                                                              | DesignerSupport::OpacityValue);

    if (DesignerSupport::isDirty(item, informationsDirty))
        return true;

    foreach (QQuickItem *childItem, item->childItems()) {
        if (!hasInstanceForObject(childItem)) {
            if (DesignerSupport::isDirty(childItem, informationsDirty))
                return true;
            else if (isDirtyRecursiveForNonInstanceItems(childItem))
                return true;
        }
    }

    return false;
}

bool Qt5InformationNodeInstanceServer::isDirtyRecursiveForParentInstances(QQuickItem *item) const
{
    if (DesignerSupport::isDirty(item,  DesignerSupport::TransformUpdateMask))
        return true;

    QQuickItem *parentItem = item->parentItem();

    if (parentItem) {
        if (hasInstanceForObject(parentItem))
            return false;

        return isDirtyRecursiveForParentInstances(parentItem);

    }

    return false;
}

void Qt5InformationNodeInstanceServer::collectItemChangesAndSendChangeCommands()
{
    static bool inFunction = false;
    if (!inFunction) {
        inFunction = true;

        DesignerSupport::polishItems(quickView());

        QSet<ServerNodeInstance> informationChangedInstanceSet;
        QVector<InstancePropertyPair> propertyChangedList;

        if (quickView()) {
            foreach (QQuickItem *item, allItems()) {
                if (item && hasInstanceForObject(item)) {
                    ServerNodeInstance instance = instanceForObject(item);

                    if (isDirtyRecursiveForNonInstanceItems(item))
                        informationChangedInstanceSet.insert(instance);
                    else if (isDirtyRecursiveForParentInstances(item))
                        informationChangedInstanceSet.insert(instance);

                    if (DesignerSupport::isDirty(item, DesignerSupport::ParentChanged)) {
                        m_parentChangedSet.insert(instance);
                        informationChangedInstanceSet.insert(instance);
                    }
                }
            }

            foreach (const InstancePropertyPair& property, changedPropertyList()) {
                const ServerNodeInstance instance = property.first;
                if (instance.isValid()) {
                    if (property.second.contains("anchors"))
                        informationChangedInstanceSet.insert(instance);

                    propertyChangedList.append(property);
                }
            }

            resetAllItems();
            clearChangedPropertyList();

            sendTokenBack();

            if (!informationChangedInstanceSet.isEmpty())
                nodeInstanceClient()->informationChanged(
                    createAllInformationChangedCommand(QtHelpers::toList(informationChangedInstanceSet)));

            if (!propertyChangedList.isEmpty())
                nodeInstanceClient()->valuesChanged(createValuesChangedCommand(propertyChangedList));

            if (!m_parentChangedSet.isEmpty()) {
                sendChildrenChangedCommand(QtHelpers::toList(m_parentChangedSet));
                m_parentChangedSet.clear();
            }

            if (!m_completedComponentList.isEmpty()) {
                nodeInstanceClient()->componentCompleted(createComponentCompletedCommand(m_completedComponentList));
                m_completedComponentList.clear();
            }

            slowDownRenderTimer();
            nodeInstanceClient()->flush();
            nodeInstanceClient()->synchronizeWithClientProcess();
        }

        inFunction = false;
    }
}

void Qt5InformationNodeInstanceServer::reparentInstances(const ReparentInstancesCommand &command)
{
    foreach (const ReparentContainer &container, command.reparentInstances()) {
        if (hasInstanceForId(container.instanceId())) {
            ServerNodeInstance instance = instanceForId(container.instanceId());
            if (instance.isValid()) {
                m_parentChangedSet.insert(instance);
            }
        }
    }

    Qt5NodeInstanceServer::reparentInstances(command);
}

void Qt5InformationNodeInstanceServer::clearScene(const ClearSceneCommand &command)
{
    Qt5NodeInstanceServer::clearScene(command);

    m_parentChangedSet.clear();
    m_completedComponentList.clear();
}

void Qt5InformationNodeInstanceServer::createScene(const CreateSceneCommand &command)
{
    Qt5NodeInstanceServer::createScene(command);

    QList<ServerNodeInstance> instanceList;
    foreach (const InstanceContainer &container, command.instances()) {
        if (hasInstanceForId(container.instanceId())) {
            ServerNodeInstance instance = instanceForId(container.instanceId());
            if (instance.isValid()) {
                instanceList.append(instance);
            }
        }
    }

    nodeInstanceClient()->informationChanged(createAllInformationChangedCommand(instanceList, true));
    nodeInstanceClient()->valuesChanged(createValuesChangedCommand(instanceList));
    sendChildrenChangedCommand(instanceList);
    nodeInstanceClient()->componentCompleted(createComponentCompletedCommand(instanceList));

}

void Qt5InformationNodeInstanceServer::sendChildrenChangedCommand(const QList<ServerNodeInstance> &childList)
{
    QSet<ServerNodeInstance> parentSet;
    QList<ServerNodeInstance> noParentList;

    foreach (const ServerNodeInstance &child, childList) {
        if (child.isValid()) {
            if (!child.hasParent()) {
                noParentList.append(child);
            } else {
                ServerNodeInstance parent = child.parent();
                if (parent.isValid()) {
                    parentSet.insert(parent);
                } else {
                    noParentList.append(child);
                }
            }
        }
    }

    foreach (const ServerNodeInstance &parent, parentSet)
        nodeInstanceClient()->childrenChanged(createChildrenChangedCommand(parent, parent.childItems()));

    if (!noParentList.isEmpty())
        nodeInstanceClient()->childrenChanged(createChildrenChangedCommand(ServerNodeInstance(), noParentList));

}

void Qt5InformationNodeInstanceServer::completeComponent(const CompleteComponentCommand &command)
{
    Qt5NodeInstanceServer::completeComponent(command);

    QList<ServerNodeInstance> instanceList;
    foreach (qint32 instanceId, command.instances()) {
        if (hasInstanceForId(instanceId)) {
            ServerNodeInstance instance = instanceForId(instanceId);
            if (instance.isValid()) {
                instanceList.append(instance);
            }
        }
    }

    m_completedComponentList.append(instanceList);

    nodeInstanceClient()->valuesChanged(createValuesChangedCommand(instanceList));
    nodeInstanceClient()->informationChanged(createAllInformationChangedCommand(instanceList, true));
}

void QmlDesigner::Qt5InformationNodeInstanceServer::removeSharedMemory(const QmlDesigner::RemoveSharedMemoryCommand &command)
{
    if (command.typeName() == "Values")
        ValuesChangedCommand::removeSharedMemorys(command.keyNumbers());
}

} // namespace QmlDesigner
