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#ifndef CLANGBACKEND_UNSAVEDFILES_H
#define CLANGBACKEND_UNSAVEDFILES_H

#include <filecontainer.h>

#include <chrono>
#include <vector>
#include <memory>

#include <QVector>

#include <clang-c/Index.h>

namespace ClangBackEnd {

using time_point = std::chrono::steady_clock::time_point;

class UnsavedFilesData;

class UnsavedFiles
{
    friend class UnsavedFilesData;
public:
    UnsavedFiles();
    ~UnsavedFiles();

    UnsavedFiles(const UnsavedFiles &unsavedFiles);
    UnsavedFiles &operator=(const UnsavedFiles &unsavedFiles);

    UnsavedFiles(UnsavedFiles &&unsavedFiles);
    UnsavedFiles &operator=(UnsavedFiles &&unsavedFiles);

    void createOrUpdate(const QVector<FileContainer> &fileContainers);
    void remove(const QVector<FileContainer> &fileContainers);
    void clear();

    int count() const;

    CXUnsavedFile *cxUnsavedFiles() const;
    const std::vector<CXUnsavedFile> &cxUnsavedFileVector() const;

    const time_point &lastChangeTimePoint() const;

private:
    CXUnsavedFile createCxUnsavedFile(const Utf8String &filePath, const Utf8String &fileContent);
    static void deleteCXUnsavedFile(const CXUnsavedFile &cxUnsavedFile);
    void updateCXUnsavedFileWithFileContainer(const FileContainer &fileContainer);
    void removeCXUnsavedFile(const FileContainer &fileContainer);
    void addOrUpdateCXUnsavedFile(const FileContainer &fileContainer);
    void updateLastChangeTimePoint();

private:
    mutable std::shared_ptr<UnsavedFilesData> d;
};

} // namespace ClangBackEnd

#endif // CLANGBACKEND_UNSAVEDFILES_H