/* $Id: MachineImplMoveVM.h 78968 2019-06-04 14:48:23Z vboxsync $ */
/** @file
 * Definition of MachineMoveVM
 */

/*
 * Copyright (C) 2011-2019 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 */

#ifndef MAIN_INCLUDED_MachineImplMoveVM_h
#define MAIN_INCLUDED_MachineImplMoveVM_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#include "MachineImpl.h"
#include "ProgressImpl.h"
#include "ThreadTask.h"

/////////////////////////////////////////////////////////////////////////////

enum VBoxFolder_t
{
    VBox_UnknownFolderType = 0,
    VBox_OutsideVMfolder,
    VBox_SettingFolder,
    VBox_LogFolder,
    VBox_StateFolder,
    VBox_SnapshotFolder
};

typedef struct
{
    bool                    fSnapshot;
    Utf8Str                 strBaseName;
    ComPtr<IMedium>         pMedium;
    uint32_t                uIdx;
    ULONG                   uWeight;
} MEDIUMTASKMOVE;

typedef struct
{
    RTCList<MEDIUMTASKMOVE>     chain;
    DeviceType_T            devType;
    bool                    fCreateDiffs;
    bool                    fAttachLinked;
} MEDIUMTASKCHAINMOVE;

typedef struct
{
    Guid                    snapshotUuid;
    Utf8Str                 strSaveStateFile;
    ULONG                   uWeight;
} SAVESTATETASKMOVE;

struct fileList_t;

class MachineMoveVM : public ThreadTask
{
    struct ErrorInfoItem
    {
        ErrorInfoItem(HRESULT aCode, const char* aDescription)
            : m_code(aCode)
            , m_description(aDescription == NULL ? "There is no description" : aDescription)
        {
        }

#ifdef DEBUG
        void logItem() const;
#endif

        HRESULT m_code;
        Utf8Str m_description;
    };

    RTCList<MEDIUMTASKCHAINMOVE>            m_llMedias;
    RTCList<SAVESTATETASKMOVE>              m_llSaveStateFiles;
    std::map<Utf8Str, MEDIUMTASKMOVE>       m_finalMediumsMap;
    std::map<Utf8Str, SAVESTATETASKMOVE>    m_finalSaveStateFilesMap;
    std::map<VBoxFolder_t, Utf8Str>         m_vmFolders;
    std::list<ErrorInfoItem>                m_errorsList;

    ComObjPtr<Machine>  m_pMachine;
    ComObjPtr<Progress> m_pProgress;
    ComObjPtr<Progress> m_pRollBackProgress;
    ComPtr<ISession>    m_pSession;
    ComPtr<IMachine>    m_pSessionMachine;
    Utf8Str             m_targetPath;
    Utf8Str             m_type;
    HRESULT             m_result;

public:
    MachineMoveVM(ComObjPtr<Machine> aMachine,
                  const com::Utf8Str &aTargetPath,
                  const com::Utf8Str &aType,
                  ComObjPtr<Progress> &aProgress)
        : ThreadTask("TaskMoveVM")
        , m_pMachine(aMachine)
        , m_pProgress(aProgress)
        , m_targetPath(aTargetPath)
        , m_type(aType.isEmpty() ? "basic" : aType)
        , m_result(S_OK)
    {
    }

    virtual ~MachineMoveVM()
    {
    }

    HRESULT init();
    static DECLCALLBACK(int) updateProgress(unsigned uPercent, void *pvUser);
    static DECLCALLBACK(int) copyFileProgress(unsigned uPercentage, void *pvUser);
    static void i_MoveVMThreadTask(MachineMoveVM* task);

    void handler()
    {
        i_MoveVMThreadTask(this);
    }

    /* MachineCloneVM::start helper: */
    HRESULT createMachineList(const ComPtr<ISnapshot> &pSnapshot, std::vector< ComObjPtr<Machine> > &aMachineList) const;
    inline HRESULT queryBaseName(const ComPtr<IMedium> &pMedium, Utf8Str &strBaseName) const;
    HRESULT queryMediasForAllStates(const std::vector<ComObjPtr<Machine> > &aMachineList);
    void updateProgressStats(MEDIUMTASKCHAINMOVE &mtc, ULONG &uCount, ULONG &uTotalWeight) const;
    HRESULT addSaveState(const ComObjPtr<Machine> &machine);
    void printStateFile(settings::SnapshotsList &snl);
    HRESULT getFilesList(const Utf8Str& strRootFolder, fileList_t &filesList);
    HRESULT getFolderSize(const Utf8Str& strRootFolder, uint64_t& size);
    HRESULT deleteFiles(const RTCList<Utf8Str>& listOfFiles);
    HRESULT updatePathsToStateFiles(const std::map<Utf8Str, SAVESTATETASKMOVE>& listOfFiles,
                                    const Utf8Str& sourcePath, const Utf8Str& targetPath);
    HRESULT moveAllDisks(const std::map<Utf8Str, MEDIUMTASKMOVE>& listOfDisks, const Utf8Str* strTargetFolder = NULL);
    HRESULT restoreAllDisks(const std::map<Utf8Str, MEDIUMTASKMOVE>& listOfDisks);
    bool isMediumTypeSupportedForMovingThrowsHresult(const ComPtr<IMedium> &pMedium);
};

#endif /* !MAIN_INCLUDED_MachineImplMoveVM_h */
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