/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
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**
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** GNU Lesser General Public License Usage
**
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**
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**
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#ifndef CPPFINDREFERENCES_H
#define CPPFINDREFERENCES_H

#include <utils/filesearch.h>
#include <cplusplus/CppDocument.h>
#include <cplusplus/DependencyTable.h>
#include <cplusplus/FindUsages.h>

#include <QMutex>
#include <QObject>
#include <QPointer>
#include <QFuture>
#include <QFutureWatcher>
#include <QMetaType>

QT_FORWARD_DECLARE_CLASS(QTimer)

namespace Find {
    struct SearchResultItem;
    class SearchResult;
} // namespace Find

namespace CPlusPlus {
class CppModelManagerInterface;
}

namespace CppTools {
namespace Internal {

class CppFindReferencesParameters
{
public:
    CPlusPlus::LookupContext context;
    CPlusPlus::Symbol *symbol;
};

class CppFindReferences: public QObject
{
    Q_OBJECT

public:
    CppFindReferences(CPlusPlus::CppModelManagerInterface *modelManager);
    virtual ~CppFindReferences();

    QList<int> references(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context) const;

public:
    void findUsages(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context);
    void renameUsages(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context,
                      const QString &replacement = QString());

    void findMacroUses(const CPlusPlus::Macro &macro);
    void renameMacroUses(const CPlusPlus::Macro &macro, const QString &replacement = QString());

    CPlusPlus::DependencyTable updateDependencyTable(CPlusPlus::Snapshot snapshot);

private Q_SLOTS:
    void displayResults(int first, int last);
    void searchFinished();
    void cancel();
    void setPaused(bool paused);
    void openEditor(const Find::SearchResultItem &item);
    void onReplaceButtonClicked(const QString &text, const QList<Find::SearchResultItem> &items);
    void searchAgain();

private:
    void findUsages(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context,
                    const QString &replacement, bool replace);
    void findMacroUses(const CPlusPlus::Macro &macro, const QString &replacement,
                       bool replace);
    void findAll_helper(Find::SearchResult *search);
    CPlusPlus::DependencyTable dependencyTable() const;
    void setDependencyTable(const CPlusPlus::DependencyTable &newTable);
    void createWatcher(const QFuture<CPlusPlus::Usage> &future, Find::SearchResult *search);
    bool findSymbol(CppFindReferencesParameters *parameters,
                    const CPlusPlus::Snapshot &snapshot);

private:
    QPointer<CPlusPlus::CppModelManagerInterface> _modelManager;
    QMap<QFutureWatcher<CPlusPlus::Usage> *, QPointer<Find::SearchResult> > m_watchers;

    mutable QMutex m_depsLock;
    CPlusPlus::DependencyTable m_deps;
};

} // namespace Internal
} // namespace CppTools

Q_DECLARE_METATYPE(CppTools::Internal::CppFindReferencesParameters)

#endif // CPPFINDREFERENCES_H