/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** accordance with the commercial license agreement provided with the
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** 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
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#pragma once

#include <cpptools/baseeditordocumentprocessor.h>
#include <cpptools/cppcompletionassistprovider.h>
#include <cpptools/cppmodelmanager.h>
#include <cpptools/cppsemanticinfo.h>
#include <cpptools/editordocumenthandle.h>

#include <texteditor/textdocument.h>

#include <QMutex>
#include <QTimer>

namespace CppEditor {
namespace Internal {

class CppEditorDocument : public TextEditor::TextDocument
{
    Q_OBJECT

    friend class CppEditorDocumentHandleImpl;

public:
    explicit CppEditorDocument();

    bool isObjCEnabled() const;
    TextEditor::CompletionAssistProvider *completionAssistProvider() const override;
    TextEditor::QuickFixAssistProvider *quickFixAssistProvider() const override;

    void recalculateSemanticInfoDetached();
    CppTools::SemanticInfo recalculateSemanticInfo(); // TODO: Remove me

    void setPreprocessorSettings(const CppTools::ProjectPart::Ptr &projectPart,
                                 const QByteArray &defines);
    void scheduleProcessDocument();

public:
    using HeaderErrorDiagnosticWidgetCreator = std::function<QWidget*()>;

signals:
    void codeWarningsUpdated(unsigned contentsRevision,
                             const QList<QTextEdit::ExtraSelection> selections,
                             const HeaderErrorDiagnosticWidgetCreator &creator,
                             const TextEditor::RefactorMarkers &refactorMarkers);

    void ifdefedOutBlocksUpdated(unsigned contentsRevision,
                                 const QList<TextEditor::BlockRange> ifdefedOutBlocks);

    void cppDocumentUpdated(const CPlusPlus::Document::Ptr document);    // TODO: Remove me
    void semanticInfoUpdated(const CppTools::SemanticInfo semanticInfo); // TODO: Remove me

    void preprocessorSettingsChanged(bool customSettings);

protected:
    void applyFontSettings() override;

private:
    void invalidateFormatterCache();
    void onFilePathChanged(const Utils::FileName &oldPath, const Utils::FileName &newPath);
    void onMimeTypeChanged();

    void onAboutToReload();
    void onReloadFinished();

    void processDocument();

    QByteArray contentsText() const;
    unsigned contentsRevision() const;

    CppTools::BaseEditorDocumentProcessor *processor();
    void resetProcessor();
    void updatePreprocessorSettings();
    void releaseResources();

    void initializeTimer();

private:
    bool m_fileIsBeingReloaded;
    bool m_isObjCEnabled;

    // Caching contents
    mutable QMutex m_cachedContentsLock;
    mutable QByteArray m_cachedContents;
    mutable int m_cachedContentsRevision;

    unsigned m_processorRevision;
    QTimer m_processorTimer;
    QScopedPointer<CppTools::BaseEditorDocumentProcessor> m_processor;

    CppTools::CppCompletionAssistProvider *m_completionAssistProvider;

    // (Un)Registration in CppModelManager
    QScopedPointer<CppTools::CppEditorDocumentHandle> m_editorDocumentHandle;
};

} // namespace Internal
} // namespace CppEditor
