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**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
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** accordance with the commercial license agreement provided with the
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** use the contact form at http://qt.digia.com/contact-us.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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****************************************************************************/

#include "designdocumentcontrollerview.h"
#include <rewriterview.h>
#include <basetexteditmodifier.h>
#include <metainfo.h>
#include <plaintexteditmodifier.h>

#include <QApplication>
#include <QPlainTextEdit>
#include <QClipboard>
#include <QDebug>

namespace QmlDesigner {

void DesignDocumentControllerView::nodeCreated(const ModelNode & /*createdNode*/) {}
void DesignDocumentControllerView::nodeAboutToBeRemoved(const ModelNode & /*removedNode*/) {}
void DesignDocumentControllerView::nodeRemoved(const ModelNode & /*removedNode*/, const NodeAbstractProperty & /*parentProperty*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {}
void DesignDocumentControllerView::nodeAboutToBeReparented(const ModelNode & /*node*/, const NodeAbstractProperty & /*newPropertyParent*/, const NodeAbstractProperty & /*oldPropertyParent*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {}
void DesignDocumentControllerView::nodeReparented(const ModelNode & /*node*/, const NodeAbstractProperty & /*newPropertyParent*/, const NodeAbstractProperty & /*oldPropertyParent*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {}
void DesignDocumentControllerView::nodeIdChanged(const ModelNode& /*node*/, const QString& /*newId*/, const QString& /*oldId*/) {}
void DesignDocumentControllerView::propertiesAboutToBeRemoved(const QList<AbstractProperty>& /*propertyList*/) {}
void DesignDocumentControllerView::propertiesRemoved(const QList<AbstractProperty>& /*propertyList*/) {}
void DesignDocumentControllerView::variantPropertiesChanged(const QList<VariantProperty>& /*propertyList*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {}
void DesignDocumentControllerView::bindingPropertiesChanged(const QList<BindingProperty>& /*propertyList*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {}
void DesignDocumentControllerView::rootNodeTypeChanged(const QString & /*type*/, int /*majorVersion*/, int /*minorVersion*/) {}

void DesignDocumentControllerView::selectedNodesChanged(const QList<ModelNode> & /*selectedNodeList*/,
                          const QList<ModelNode> & /*lastSelectedNodeList*/) {}

void DesignDocumentControllerView::nodeOrderChanged(const NodeListProperty & /*listProperty*/, const ModelNode & /*movedNode*/, int /*oldIndex*/) {}

void DesignDocumentControllerView::scriptFunctionsChanged(const ModelNode &/*node*/, const QStringList &/*scriptFunctionList*/)
{
}

void DesignDocumentControllerView::instancePropertyChange(const QList<QPair<ModelNode, QString> > &/*propertyList*/)
{
}

void DesignDocumentControllerView::instancesCompleted(const QVector<ModelNode> &/*completedNodeList*/)
{

}
void DesignDocumentControllerView::instanceInformationsChange(const QMultiHash<ModelNode, InformationName> &/*informationChangeHash*/)
{

}

void DesignDocumentControllerView::instancesRenderImageChanged(const QVector<ModelNode> &/*nodeList*/)
{

}

void DesignDocumentControllerView::instancesPreviewImageChanged(const QVector<ModelNode> &/*nodeList*/)
{

}

void DesignDocumentControllerView::instancesChildrenChanged(const QVector<ModelNode> &/*nodeList*/)
{

}

void DesignDocumentControllerView::instancesToken(const QString &/*tokenName*/, int /*tokenNumber*/, const QVector<ModelNode> &/*nodeVector*/)
{

}

void DesignDocumentControllerView::nodeSourceChanged(const ModelNode &, const QString & /*newNodeSource*/)
{

}

void DesignDocumentControllerView::rewriterBeginTransaction()
{

}

void DesignDocumentControllerView::rewriterEndTransaction()
{
}

void DesignDocumentControllerView::actualStateChanged(const ModelNode &/*node*/)
{
}

void DesignDocumentControllerView::importsChanged(const QList<Import> &/*addedImports*/, const QList<Import> &/*removedImports*/)
{

}

static QStringList arrayToStringList(const QByteArray &byteArray)
{
    QString str(QString::fromLatin1(byteArray));
    return str.split('\n');
}

static QByteArray stringListToArray(const QStringList &stringList)
{
    QString str;
    foreach (const QString &subString, stringList)
        str += subString + '\n';
    return str.toLatin1();
}

void DesignDocumentControllerView::toClipboard() const
{
    QClipboard *clipboard = QApplication::clipboard();

    QMimeData *data = new QMimeData;

    data->setText(toText());
    QStringList imports;
    foreach (const Import &import, model()->imports())
        imports.append(import.toString());

    data->setData("QmlDesigner::imports", stringListToArray(imports));
    clipboard->setMimeData(data);
}

void DesignDocumentControllerView::fromClipboard()
{
    QClipboard *clipboard = QApplication::clipboard();
    fromText(clipboard->text());
    QStringList imports = arrayToStringList(clipboard->mimeData()->data("QmlDesigner::imports"));
//    foreach (const QString &importString, imports) {
//        Import import(Import::createLibraryImport();
//        model()->addImport(import); //### imports
//    }
}


QString DesignDocumentControllerView::toText() const
{
    QScopedPointer<Model> outputModel(Model::create("QtQuick.Rectangle", 1, 0, model()));
    outputModel->setFileUrl(model()->fileUrl());
    QPlainTextEdit textEdit;

    QString imports;
    foreach (const Import &import, model()->imports()) {
        if (import.isFileImport())
            imports += QLatin1String("import ") + QLatin1String("\"") + import.file() + QLatin1String("\"")+ QLatin1String(";\n");
        else
            imports += QLatin1String("import ") + import.url() + QLatin1String(" ") + import.version() + QLatin1String(";\n");
    }

    textEdit.setPlainText(imports +  QLatin1String("Item {\n}\n"));
    NotIndentingTextEditModifier modifier(&textEdit);

    QScopedPointer<RewriterView> rewriterView(new RewriterView(RewriterView::Amend, 0));
    rewriterView->setCheckSemanticErrors(false);
    rewriterView->setTextModifier(&modifier);
    outputModel->attachView(rewriterView.data());

    ModelMerger merger(rewriterView.data());

    merger.replaceModel(rootModelNode());

    ModelNode rewriterNode(rewriterView->rootModelNode());

    //get the text of the root item without imports
    return rewriterView->extractText(QList<ModelNode>() << rewriterNode).value(rewriterNode);
}

void DesignDocumentControllerView::fromText(QString text)
{
    QScopedPointer<Model> inputModel(Model::create("QtQuick.Rectangle", 1, 0, model()));
    inputModel->setFileUrl(model()->fileUrl());
    QPlainTextEdit textEdit;
    QString imports;
    foreach (const Import &import, model()->imports())
        imports += import.toString(true, true) + QLatin1Char('\n');

    textEdit.setPlainText(imports + text);
    NotIndentingTextEditModifier modifier(&textEdit);

    QScopedPointer<RewriterView> rewriterView(new RewriterView(RewriterView::Amend, 0));
    rewriterView->setCheckSemanticErrors(false);
    rewriterView->setTextModifier(&modifier);
    inputModel->attachView(rewriterView.data());

    if (rewriterView->errors().isEmpty() && rewriterView->rootModelNode().isValid()) {
        ModelMerger merger(this);
        merger.replaceModel(rewriterView->rootModelNode());
    }
}

}// namespace QmlDesigner