reHDD/src/tui.cpp

/**
 * @file    tui.cpp
 * @brief   display user interface
 * @author  hendrik schutter
 * @date    03.08.2020
 */

#include "../include/reHDD.h"

static std::mutex mxUIrefresh;

TUI::TUI(void)
{
}

/**
 * \brief   wipe drive with shred
 * \param	pointer of Drive instance
 * \return  void
 */

void TUI::initTUI()
{
    initscr();
    raw();
    keypad(stdscr, TRUE);
    if (has_colors() == TRUE)
    {
        start_color();
    }
    else
    {
        printf("Your terminal does not support color\n");
        Logger::logThis()->error("Your terminal does not support color");
        exit(1);
    }
    clear();
    curs_set(0);
    noecho();
    cbreak();
    init_pair(COLOR_AREA_STDSCR, COLOR_WHITE, COLOR_BLUE);
    wbkgd(stdscr, COLOR_PAIR(COLOR_AREA_STDSCR));

    init_pair(COLOR_AREA_ENTRY_EVEN, COLOR_BLACK, COLOR_WHITE);
    init_pair(COLOR_AREA_ENTRY_ODD, COLOR_BLUE, COLOR_WHITE);
    init_pair(COLOR_AREA_ENTRY_SELECTED, COLOR_WHITE, COLOR_RED);
    init_pair(COLOR_AREA_OVERVIEW, COLOR_BLACK, COLOR_WHITE);
    init_pair(COLOR_AREA_DETAIL, COLOR_BLACK, COLOR_WHITE);

    mvprintw(0, 2, "reHDD - HDD refurbishing tool - GPL 3.0 ");
    Logger::logThis()->info("UI successfully initialized");
}

void TUI::updateTUI(list<Drive> *plistDrives, uint8_t u8SelectedEntry)
{
    mxUIrefresh.lock();
    uint16_t u16StdscrX, u16StdscrY;
    getmaxyx(stdscr, u16StdscrY, u16StdscrX);

    init_pair(COLOR_AREA_STDSCR, COLOR_WHITE, COLOR_BLUE);
    wbkgd(stdscr, COLOR_PAIR(COLOR_AREA_STDSCR));

    refresh();

    // overview window is 3/7 of the x-size
    overview = createOverViewWindow((int)(u16StdscrX * (float)(3.0 / 7.0)), (u16StdscrY - 1));
    wrefresh(overview);

    // system stat window is 2/7 of the x-size
    systemview = createSystemStats(((int)(u16StdscrX * (float)(2.0 / 7.0))) - 6, 12, (int)(u16StdscrX * (float)(5.0 / 7.0) + 4), (u16StdscrY - 13));
    wrefresh(systemview);

    delwin(detailview);

    list<Drive>::iterator it;
    uint8_t u8Index = 0U;
    for (it = plistDrives->begin(); it != plistDrives->end(); ++it)
    {
        string sModelFamily = it->getModelFamily();
        string sSerial = "SN: " + it->getSerial();
        string sCapacity = it->sCapacityToText();
        string sState = " ";
        string sSpeed = " ";
        string sTime = " ";
        string sTemp = it->sTemperatureToText();

        bool bSelectedEntry = false;

        if (u8SelectedEntry == u8Index)
        {
            bSelectedEntry = true; // mark this drive in entries list
            displaySelectedDrive(*it, u16StdscrX, u16StdscrY);

            if ((it->getPowerOnHours() >= WORSE_HOURS) || (it->getPowerCycles() >= WORSE_POWERUP) || (it->getErrorCount() > 0) || (it->getTemperature() >= WORSE_TEMPERATURE))
            {
                // smart values are bad --> show warning
                smartWarning = createSmartWarning(50, 10, ((u16StdscrX) - (int)(u16StdscrX / 2) + 35), (int)(u16StdscrY / 2) - 5, it->getPath(), it->getPowerOnHours(), it->getPowerCycles(), it->getErrorCount(), it->getTemperature());
                wrefresh(smartWarning);
            }
        }

        stringstream stream;

        switch (it->state)
        {
        case Drive::SHRED_ACTIVE:

            stream << fixed << setprecision(3) << (it->getTaskPercentage());
            sState = "Shredding: " + stream.str() + "%";

            it->calculateTaskDuration();
            sTime = this->formatTimeDuration(it->getTaskDuration());
            sSpeed = this->formatSpeed(it->sShredSpeed.u32ShredTimeDelta, it->sShredSpeed.ulWrittenBytes);
            break;
        case Drive::CHECK_ACTIVE:
            stream << fixed << setprecision(3) << (it->getTaskPercentage());
            sState = "Checking: " + stream.str() + "%";
            it->calculateTaskDuration();
            sTime = this->formatTimeDuration(it->getTaskDuration());
            sSpeed = this->formatSpeed(it->sShredSpeed.u32ShredTimeDelta, it->sShredSpeed.ulWrittenBytes);
            break;
        case Drive::DELETE_ACTIVE:
            sState = "Deleting ...";
            it->calculateTaskDuration();
            sTime = this->formatTimeDuration(it->getTaskDuration());
            break;
        case Drive::NONE:
        case Drive::SHRED_SELECTED:
        case Drive::DELETE_SELECTED:
            if (it->bWasDeleted)
            {
                sState = "DELETED"; // mark drive as deleted previously
            }
            if (it->bWasShredded)
            {
                if (it->bWasChecked)
                {
                    // drive was also checked after shredding
                    sState = "SHREDDED & CHECKED"; // mark drive as shredded previously and optional checked
                }
                else
                {
                    // shredded and not checked yet
                    sState = "SHREDDED"; // mark drive as shredded previously
                }
                sTime = this->formatTimeDuration(it->getTaskDuration());
            }

#ifdef ZERO_CHECK
            if (bSelectedEntry && it->bWasChecked && (it->u32DriveChecksumAfterShredding != 0U))
            {
                dialog = createZeroChecksumWarning(70, 16, ((u16StdscrX) - (int)(u16StdscrX / 2) - 20), (int)(u16StdscrY / 2) - 8, it->getPath(), it->getModelFamily(), it->getModelName(), it->getSerial(), it->u32DriveChecksumAfterShredding);
                wrefresh(dialog);
            }
#endif

            break;
        case Drive::FROZEN:
            stream << fixed << setprecision(3) << (it->getTaskPercentage());
#ifdef FROZEN_ALERT
            if (bSelectedEntry)
            {
                dialog = createFrozenWarning(70, 16, ((u16StdscrX) - (int)(u16StdscrX / 2) - 20), (int)(u16StdscrY / 2) - 8, it->getPath(), it->getModelFamily(), it->getModelName(), it->getSerial(), stream.str() + "%");
                wrefresh(dialog);
            }
#endif
            sState = "FROZEN " + stream.str() + "%"; // mark drive as frozen and reached progress
            break;
        default:
            break;
        }

        uint16_t u16StartOffsetY = (2 * (u8Index));

        WINDOW *tmp = createEntryWindow((int)(u16StdscrX * (float)(3.0 / 7.0) - 2), 2, 3, u16StartOffsetY + 2, (distance(plistDrives->begin(), it) + 1), sModelFamily, sSerial, sCapacity, sState, sTime, sSpeed, sTemp, bSelectedEntry);
        wrefresh(tmp);
        u8Index++;
    } // end loop though drives

    if (plistDrives->size() == 0)
    {
        // no selected drive present
        Logger::logThis()->warning("no selected drive present");
        struct MenuState menustate;
        menustate.bAbort = false;
        menustate.bConfirmDelete = false;
        menustate.bConfirmShred = false;
        menustate.bDelete = false;
        menustate.bShred = false;

        detailview = overwriteDetailViewWindow((u16StdscrX) - ((int)(u16StdscrX * (float)(3.0 / 7.0))) - 7, (u16StdscrY - 15), (int)(u16StdscrX * (float)(3.0 / 7.0) + 5));
        wrefresh(detailview);

        menuview = createMenuView(((int)(u16StdscrX * (float)(2.0 / 7.0))) - 3, 12, (int)(u16StdscrX * (float)(3.0 / 7.0) + 5), (u16StdscrY - 13), menustate);
        wrefresh(menuview);
    }

    mxUIrefresh.unlock();
}

enum TUI::UserInput TUI::readUserInput()
{
    int ch = wgetch(stdscr);
    switch (ch)
    {
    case KEY_UP:
        return TUI::UserInput::UpKey;
        break;
    case KEY_DOWN:
        return TUI::UserInput::DownKey;
        break;
    case 10:
        return TUI::UserInput::Enter;
        break;
    case 27:
        return TUI::UserInput::ESC;
        break;
    case 'a':
        return TUI::UserInput::Abort;
        break;
    case 'd':
        return TUI::UserInput::Delete;
        break;
    case 's':
        return TUI::UserInput::Shred;
        break;
    case 'S':
        return TUI::UserInput::ShredAll;
        break;
    default:
        return TUI::UserInput::Undefined;
        break;
    }
    return TUI::UserInput::Undefined;
}

void TUI::centerTitle(WINDOW *pwin, const char *title)
{
    int x, maxX, stringSize;
    getmaxyx(pwin, maxX, maxX);
    stringSize = 4 + strlen(title);
    x = (maxX - stringSize) / 2;
    mvwaddch(pwin, 0, x, ACS_RTEE);
    waddch(pwin, ' ');
    waddstr(pwin, title);
    waddch(pwin, ' ');
    waddch(pwin, ACS_LTEE);
}

/*
left window that contains the drive entries
*/
WINDOW *TUI::createOverViewWindow(int iXSize, int iYSize)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, 1, 2);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_OVERVIEW));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    centerTitle(newWindow, "Detected Drives");

    return newWindow;
}

WINDOW *TUI::createDetailViewWindow(int iXSize, int iYSize, int iXStart, Drive drive)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, 1, iXStart);
    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_DETAIL));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    string title = "Selected Drive: " + drive.getModelName() + " " + drive.sCapacityToText();
    centerTitle(newWindow, title.c_str());

    string sPath = "Path:          " + drive.getPath();
    string sModelFamily = "ModelFamily:   " + drive.getModelFamily();
    string sModelName = "ModelName:     " + drive.getModelName();
    string sCapacity = "Capacity:      " + drive.sCapacityToText();
    string sSerial = "Serial:        " + drive.getSerial();
    string sPowerOnHours = "PowerOnHours:  " + drive.sPowerOnHoursToText();
    string sPowerCycle = "PowerCycle:    " + drive.sPowerCyclesToText();
    string sErrorCount = "ErrorCount:    " + drive.sErrorCountToText();

    uint16_t u16Line = 2;

    mvwaddstr(newWindow, u16Line++, 3, sPath.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sModelFamily.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sModelName.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sCapacity.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sSerial.c_str());

    attroff(COLOR_PAIR(COLOR_AREA_DETAIL));

    mvwaddstr(newWindow, u16Line++, 3, sPowerOnHours.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sPowerCycle.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sErrorCount.c_str());

    return newWindow;
}

WINDOW *TUI::overwriteDetailViewWindow(int iXSize, int iYSize, int iXStart)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, 1, iXStart);
    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_DETAIL));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    string title = "About this tool";
    centerTitle(newWindow, title.c_str());

    string sLine01 = "reHDD - hard drive refurbishing tool";
    string sLine02 = "Version: " + string(REHDD_VERSION);
    string sLine03 = "Available under GPL 3.0";
    string sLine04 = "https://git.mosad.xyz/localhorst/reHDD";
    string sLine05 = "Delete: Wipe format table - this is NOT secure";
    string sLine06 = "Shred: Overwrite drive " + to_string(SHRED_ITERATIONS) + " iterations - this is secure";

    uint16_t u16Line = 5;

    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine01.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine02.size() / 2), sLine02.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine03.size() / 2), sLine03.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine04.size() / 2), sLine04.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine05.size() / 2), sLine05.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine06.size() / 2), sLine06.c_str());

    attroff(COLOR_PAIR(COLOR_AREA_DETAIL));

    return newWindow;
}

WINDOW *TUI::createEntryWindow(int iXSize, int iYSize, int iXStart, int iYStart, int iListIndex, string sModelFamily, string sSerial, string sCapacity, string sState, string sTime, string sSpeed, string sTemp, bool bSelected)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    if (!bSelected)
    {
        // entry is NOT selected
        if (iListIndex % 2 == 0)
        {
            // even
            attron(COLOR_PAIR(COLOR_AREA_ENTRY_EVEN));
            wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_EVEN));
        }
        else
        {
            // odd
            attron(COLOR_PAIR(COLOR_AREA_ENTRY_ODD));
            wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_ODD));
        }
    }
    else
    {
        // entry IS selected
        attron(COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
        wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
    }

    // box(newWindow, ACS_VLINE, ACS_HLINE);

    // index number
    mvwaddstr(newWindow, 0, 1, to_string(iListIndex).c_str());

    /*
    70 chars in x-axis

    line:01
        0:      space
        1:      index number
        2:      space
        3-35:   ModelFamily
        36:     space
        37-43:  Capacity
        44:     space
        47-49:  Temp

    line:02
        0-2:    space
        3-31:   Serial
        32:     space
        33-45:  Speed
        46:     space
        47-58:  Time
        59:     space
        60-70:  State (but right side aligned)
    */

    vTruncateText(&sModelFamily, 32);
    mvwaddstr(newWindow, 0, 3, sModelFamily.c_str());
    mvwaddstr(newWindow, 0, 37, sCapacity.c_str());
    mvwaddstr(newWindow, 0, 47, sTemp.c_str());

    vTruncateText(&sSerial, 28);
    mvwaddstr(newWindow, 1, 3, sSerial.c_str());
    mvwaddstr(newWindow, 1, 33, sSpeed.c_str());
    mvwaddstr(newWindow, 1, 47, sTime.c_str());
    mvwaddstr(newWindow, 1, iXSize - sState.length() - 2, sState.c_str());

    return newWindow;
}

WINDOW *TUI::createSystemStats(int iXSize, int iYSize, int iXStart, int iYStart)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_OVERVIEW));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    centerTitle(newWindow, "System");

    time_t rawtime;
    struct tm *timeinfo;
    char buffer[80];
    time(&rawtime);
    timeinfo = localtime(&rawtime);
    strftime(buffer, sizeof(buffer), "Date: %d-%m-%Y   Time: %H:%M", timeinfo);
    string time(buffer);

    string sLine01 = "reHDD - hard drive refurbishing tool";
    string sLine02 = "Version: " + string(REHDD_VERSION);
    string sLine03 = "Build time: ";
    sLine03.append(__DATE__);
    sLine03.append(" ");
    sLine03.append(__TIME__);
    string sLine04 = "Available under GPL 3.0";
    string sLine05 = "https://git.mosad.xyz/localhorst/reHDD";

    uint16_t u16Line = 2;

    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine01.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine02.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine03.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine04.c_str());
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine05.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), time.c_str());

    return newWindow;
}

WINDOW *TUI::createMenuView(int iXSize, int iYSize, int iXStart, int iYStart, struct MenuState menustate)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_OVERVIEW));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    centerTitle(newWindow, "Controls");

    uint16_t u16Line = 4;

    if (menustate.bAbort)
    {
        string sLineTmp = "Press a for Abort";
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLineTmp.size() / 2), sLineTmp.c_str());
        u16Line++;
    }
    if (menustate.bShred)
    {
        string sLineTmp = "Press s for Shred (S for all drives)";
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLineTmp.size() / 2), sLineTmp.c_str());
        u16Line++;
    }
    if (menustate.bDelete)
    {
        string sLineTmp = "Press d for Delete";
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLineTmp.size() / 2), sLineTmp.c_str());
    }

    return newWindow;
}

WINDOW *TUI::createDialog(int iXSize, int iYSize, int iXStart, int iYStart, string task, string optionA, string optionB)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    centerTitle(newWindow, task.c_str());

    uint16_t u16Line = 3;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (optionA.size() / 2), optionA.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (optionB.size() / 2), optionB.c_str());

    return newWindow;
}

WINDOW *TUI::createFrozenWarning(int iXSize, int iYSize, int iXStart, int iYStart, string sPath, string sModelFamily, string sModelName, string sSerial, string sProgress)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    string sHeader = "Drive " + sPath + " is frozen";
    string sLine01 = "Please detach this drive and check it manually:";
    string sShredState = "Shredding stopped after " + sProgress;
    string sLinePath = "Path:          " + sPath;
    string sLineModelFamlily = "ModelFamily:   " + sModelFamily;
    string sLineModelName = "ModelName:     " + sModelName;
    string sLineSerial = "Serial:        " + sSerial;

    string sLine02 = "reHDD was not able to write data to the drive.";
    string sLine03 = "This can be caused by an malfunctioning drive.";

    centerTitle(newWindow, sHeader.c_str());

    uint16_t u16Line = 2;
    mvwaddstr(newWindow, u16Line++, 3, sLine01.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, 3, sLinePath.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineModelFamlily.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineModelName.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineSerial.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, 3, sLine02.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLine03.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sShredState.c_str());

    return newWindow;
}

WINDOW *TUI::createZeroChecksumWarning(int iXSize, int iYSize, int iXStart, int iYStart, string sPath, string sModelFamily, string sModelName, string sSerial, uint32_t u32Checksum)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    string sHeader = "Drive " + sPath + " is NOT successfully shredded!";
    string sLine01 = "Please detach this drive and check it manually:";
    string sShredChecksum = "After shredding the checksum was: " + to_string(u32Checksum);
    string sLinePath = "Path:          " + sPath;
    string sLineModelFamily = "ModelFamily:   " + sModelFamily;
    string sLineModelName = "ModelName:     " + sModelName;
    string sLineSerial = "Serial:        " + sSerial;

    string sLine02 = "reHDD was not able to write zero into every byte on the drive.";
    string sLine03 = "This can be caused by an malfunctioning drive.";

    centerTitle(newWindow, sHeader.c_str());

    uint16_t u16Line = 2;
    mvwaddstr(newWindow, u16Line++, 3, sLine01.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, 3, sLinePath.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineModelFamily.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineModelName.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLineSerial.c_str());
    u16Line++;
    mvwaddstr(newWindow, u16Line++, 3, sLine02.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sLine03.c_str());
    mvwaddstr(newWindow, u16Line++, 3, sShredChecksum.c_str());

    return newWindow;
}

string TUI::formatTimeDuration(time_t u32Duration)
{
    std::ostringstream out;
    int dy = (int)((u32Duration) / 86400);
    int hr = (int)(((u32Duration) / 3600) % 24);
    int min = ((int)((u32Duration) / 60)) % 60;
    int sec = (int)((u32Duration) % 60);
    char s[25];
    sprintf(s, "%02d:%02d:%02d:%02d", dy, hr, min, sec);
    out << s;
    return out.str();
}

string TUI::formatSpeed(time_t u32ShredTimeDelta, unsigned long ulWrittenBytes)
{
    std::ostringstream out;
    double dDeltaSec = ((double)((u32ShredTimeDelta) / 1000000000.0)); // convert nano in sec
    double speed = ((ulWrittenBytes / 1000000.0) / dDeltaSec);
    char s[25];
    sprintf(s, "%0.2lf MB/s", speed);
    out << s;
    return out.str();
}

void TUI::vTruncateText(string *psText, uint16_t u16MaxLenght)
{
    if (psText->length() > u16MaxLenght)
    {
        psText->resize(u16MaxLenght - 3);
        *psText = *psText + "...";
    }
}

void TUI::displaySelectedDrive(Drive drive, int stdscrX, int stdscrY)
{
    struct MenuState menustate;
    menustate.bAbort = false;
    menustate.bConfirmDelete = false;
    menustate.bConfirmShred = false;
    menustate.bDelete = false;
    menustate.bShred = false;

    // set menustate based on drive state
    switch (drive.state)
    {
    case Drive::NONE: // no task running or selected for this drive
        menustate.bShred = true;
        menustate.bDelete = true;
        break;
    case Drive::DELETE_ACTIVE: // delete task running for this drive
        menustate.bAbort = true;
        break;

    case Drive::SHRED_ACTIVE: // shred task running for this drive
        menustate.bAbort = true;
        break;

    case Drive::CHECK_ACTIVE: // check task running for this drive
        menustate.bAbort = true;
        break;

    case Drive::DELETE_SELECTED: // delete task selected for this drive
        menustate.bConfirmDelete = true;
        break;

    case Drive::SHRED_SELECTED: // shred task selected for this drive
        menustate.bConfirmShred = true;
        break;
    default:
        break;
    }

    detailview = createDetailViewWindow((stdscrX) - ((int)(stdscrX * (float)(3.0 / 7.0))) - 7, (stdscrY - 15), (int)(stdscrX * (float)(3.0 / 7.0) + 5), drive);
    wrefresh(detailview);

    menuview = createMenuView(((int)(stdscrX * (float)(2.0 / 7.0))) - 3, 12, (int)(stdscrX * (float)(3.0 / 7.0) + 5), (stdscrY - 13), menustate);
    wrefresh(menuview);

    if (menustate.bConfirmShred == true)
    {
        dialog = createDialog(40, 10, ((stdscrX) - (int)(stdscrX / 3) - 7) - (int)((stdscrX / 3) + 5) / 2, (int)(stdscrY / 2) - 5, "Confirm SHRED", "Press ENTER for SHRED", "Press ESC for cancel");
        wrefresh(dialog);
    }
    else if (menustate.bConfirmDelete == true)
    {
        dialog = createDialog(40, 10, ((stdscrX) - (int)(stdscrX / 3) - 7) - (int)((stdscrX / 3) + 5) / 2, (int)(stdscrY / 2) - 5, "Confirm DELETE", "Press ENTER for DELETE", "Press ESC for cancel");
        wrefresh(dialog);
    }
    else
    {
        delwin(dialog);
    }
}

WINDOW *TUI::createSmartWarning(int iXSize, int iYSize, int iXStart, int iYStart, string sPath, uint32_t u32PowerOnHours, uint32_t u32PowerCycles, uint32_t u32ErrorCount, uint32_t u32Temperature)
{
    WINDOW *newWindow;
    newWindow = newwin(iYSize, iXSize, iYStart, iXStart);

    wbkgd(newWindow, COLOR_PAIR(COLOR_AREA_ENTRY_SELECTED));
    box(newWindow, ACS_VLINE, ACS_HLINE);

    string sHeader = "Drive " + sPath + " is suspicious";
    string sLine01 = "Please evaluate this drive carefully.";

    centerTitle(newWindow, sHeader.c_str());

    uint16_t u16Line = 2;
    mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLine01.c_str());
    u16Line++;

    if (u32PowerOnHours > WORSE_HOURS)
    {
        string sLineTmp = "Operating hours exceeded " + to_string(WORSE_HOURS) + " hours: " + to_string(u32PowerOnHours);
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLineTmp.c_str());
        u16Line++;
    }

    if (u32PowerCycles > WORSE_POWERUP)
    {
        string sLineTmp = "Power-on exceeded " + to_string(WORSE_POWERUP) + " cycles: " + to_string(u32PowerCycles);
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLineTmp.c_str());
        u16Line++;
    }

    if (u32ErrorCount > 0)
    {
        string sLineTmp = "S.M.A.R.T. errors detected: " + to_string(u32ErrorCount);
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLineTmp.c_str());
        u16Line++;
    }

    if (u32Temperature >= WORSE_TEMPERATURE)
    {
        string sLineTmp = "Drive too hot: " + to_string(u32Temperature) + " C";
        mvwaddstr(newWindow, u16Line++, (iXSize / 2) - (sLine01.size() / 2), sLineTmp.c_str());
    }
    return newWindow;
}