#include "tsystem.h"

using namespace std;

#include <set></set>

#include "tfilepath_io.h"

#include "tconvert.h"

#ifndef TNZCORE_LIGHT

#include <qdatetime></qdatetime>

#include <qstringlist></qstringlist>

#include <qprocess></qprocess>

#include <qdir></qdir>

#include <qfile></qfile>

#include <qfileinfo></qfileinfo>

#include <qsettings></qsettings>

#include <qvariant></qvariant>

#include <qthread></qthread>

#include <qurl></qurl>

#include <qcoreapplication></qcoreapplication>

#include <quuid></quuid>

#include <qdesktopservices></qdesktopservices>

#include <qhostinfo></qhostinfo>

#ifdef _WIN32

#include <shlobj.h></shlobj.h>

#include <shellapi.h></shellapi.h>

#include <winnt.h></winnt.h>

#endif

namespace {

inline QString toQString(const TFilePath &path) {

  return QString::fromStdWString(path.getWideString());

}

int HasMainLoop = -1;

}  // namespace

//-----------------------------------------------------------------------------------

TFileStatus::TFileStatus(const TFilePath &path) {

  m_fileInfo = QFileInfo(QString::fromStdWString(path.getWideString()));

  m_exist    = m_fileInfo.exists();

}

//-----------------------------------------------------------------------------------

QString TFileStatus::getGroup() const {

  if (!m_exist) return QString();

  return m_fileInfo.group();

}

//-----------------------------------------------------------------------------------

QString TFileStatus::getUser() const {

  if (!m_exist) return QString();

  return m_fileInfo.owner();

}

//-----------------------------------------------------------------------------------

TINT64 TFileStatus::getSize() const {

  if (!m_exist) return 0;

  return m_fileInfo.size();

}

//-----------------------------------------------------------------------------------

QDateTime TFileStatus::getLastAccessTime() const {

  if (!m_exist) return QDateTime();

  return m_fileInfo.lastRead();

}

//-----------------------------------------------------------------------------------

QDateTime TFileStatus::getLastModificationTime() const {

  if (!m_exist) return QDateTime();

  return m_fileInfo.lastModified();

}

//-----------------------------------------------------------------------------------

QDateTime TFileStatus::getCreationTime() const {

  if (!m_exist) return QDateTime();

  return m_fileInfo.birthTime();

}

//-----------------------------------------------------------------------------------

QFile::Permissions TFileStatus::getPermissions() const {

  if (!m_exist) return QFileDevice::Permissions();

  return m_fileInfo.permissions();

}

//-----------------------------------------------------------------------------------

bool TFileStatus::isDirectory() const {

  if (!m_exist) return 0;

  return m_fileInfo.isDir();

}

//-----------------------------------------------------------------------------------

bool TFileStatus::isLink() const { return m_fileInfo.isSymLink(); }

//-----------------------------------------------------------------------------------

bool TSystem::doHaveMainLoop() {

  if (HasMainLoop == -1)

    assert(!"you MUST call the TSystem::hasMainLoop function in the main of the program!");

  return HasMainLoop == 1;

}

//-----------------------------------------------------------------------------------

void TSystem::hasMainLoop(bool state) {

  assert(HasMainLoop == -1);

  HasMainLoop = state ? 1 : 0;

}

//-----------------------------------------------------------------------------------

QString TSystem::getHostName() { return QHostInfo::localHostName(); }

//------------------------------------------------------------

QString TSystem::getUserName() {

  QStringList list = QProcess::systemEnvironment();

  int j;

  for (j = 0; j < list.size(); j++) {

    QString value = list.at(j);

    QString user;

#ifdef _WIN32

    if (value.startsWith("USERNAME=")) user = value.right(value.size() - 9);

#else

    if (value.startsWith("USER=")) user = value.right(value.size() - 5);

#endif

    if (!user.isEmpty()) return user;

  }

  return QString("none");

}

//------------------------------------------------------------

TFilePath TSystem::getTempDir() {

  return TFilePath(QDir::tempPath().toStdString());

}

//------------------------------------------------------------

TFilePath TSystem::getTestDir(string name) {

  return TFilePath("C:") + TFilePath(name);

}

//------------------------------------------------------------

QString TSystem::getSystemValue(const TFilePath &name) {

#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))

  QStringList strlist = toQString(name).split("\\", Qt::SkipEmptyParts);

#else

  QStringList strlist = toQString(name).split("\\", QString::SkipEmptyParts);

#endif

  assert(strlist.size() > 3);

  assert(strlist.at(0) == "SOFTWARE");

  QSettings qs(QSettings::SystemScope, strlist.at(1), strlist.at(2));

  int i;

  QString varName;

  for (i = 3; i < strlist.size(); i++) {

    varName += strlist.at(i);

    if (i < strlist.size() - 1) varName += "//";

  }

  return qs.value(varName).toString();

}

//------------------------------------------------------------

TFilePath TSystem::getBinDir() {

  TFilePath fp =

      TFilePath(QCoreApplication::applicationFilePath().toStdString());

  return fp.getParentDir();

}

//------------------------------------------------------------

TFilePath TSystem::getDllDir() { return getBinDir(); }

//------------------------------------------------------------

TFilePath TSystem::getUniqueFile(QString field) {

  QString uuid = QUuid::createUuid()

                     .toString()

                     .replace("-", "")

                     .replace("{", "")

                     .replace("}", "")

                     .toLatin1()

                     .data();

  QString path = QDir::tempPath() + QString("\\") + field + uuid;

  return TFilePath(path.toStdString());

}

//------------------------------------------------------------

namespace {

TFilePathSet getPathsToCreate(const TFilePath &path) {

  TFilePathSet pathList;

  if (path.isEmpty()) return pathList;

  TFilePath parentDir = path;

  while (!TFileStatus(parentDir).doesExist()) {

    if (parentDir == parentDir.getParentDir()) return TFilePathSet();

    pathList.push_back(parentDir);

    parentDir = parentDir.getParentDir();

  }

  return pathList;

}

void setPathsPermissions(const TFilePathSet &pathSet,

                         QFile::Permissions permissions) {

  TFilePathSet::const_iterator it;

  for (it = pathSet.begin(); it != pathSet.end(); it++) {

    QFile f(toQString(*it));

    f.setPermissions(permissions);

  }

}

}  // namespace

// gestire exception

void TSystem::mkDir(const TFilePath &path) {

  TFilePathSet pathSet = getPathsToCreate(path);

  QString qPath        = toQString(path);

  assert(!qPath.contains("+"));

  if (!QDir::current().mkpath(qPath))

    throw TSystemException(path, "can't create folder!");

  setPathsPermissions(

      pathSet, QFile::ReadUser | QFile::WriteUser | QFile::ExeUser |

                   QFile::ReadGroup | QFile::WriteGroup | QFile::ExeGroup |

                   QFile::ReadOther | QFile::WriteOther | QFile::ExeOther);

}

//------------------------------------------------------------

// gestire exception

void TSystem::rmDir(const TFilePath &path) {

  if (!QDir(toQString(path.getParentDir()))

           .rmdir(QString::fromStdString(path.getName())))

    throw TSystemException(path, "can't remove folder!");

}

// vinz

//------------------------------------------------------------

namespace {

void rmDirTree(const QString &path) {

  int i;

  QFileInfoList fil = QDir(path).entryInfoList();

  for (i = 0; i < fil.size(); i++) {

    QFileInfo fi = fil.at(i);

    if (fi.fileName() == QString(".") || fi.fileName() == QString(".."))

      continue;

    QString son = fi.absoluteFilePath();

    if (QFileInfo(son).isDir())

      rmDirTree(son);

    else if (QFileInfo(son).isFile())

      if (!QFile::remove(son))

        throw TSystemException("can't remove file" + son.toStdString());

  }

  if (!QDir::current().rmdir(path))

    throw TSystemException("can't remove path!");

}

}  // namespace

//------------------------------------------------------------

void TSystem::rmDirTree(const TFilePath &path) { ::rmDirTree(toQString(path)); }

//------------------------------------------------------------

void TSystem::copyDir(const TFilePath &dst, const TFilePath &src) {

  QFileInfoList fil = QDir(toQString(src)).entryInfoList();

  QDir::current().mkdir(toQString(dst));

  int i;

  for (i = 0; i < fil.size(); i++) {

    QFileInfo fi = fil.at(i);

    if (fi.fileName() == QString(".") || fi.fileName() == QString(".."))

      continue;

    if (fi.isDir()) {

      TFilePath srcDir = TFilePath(fi.filePath().toStdString());

      TFilePath dstDir = dst + srcDir.getName();

      copyDir(dstDir, srcDir);

    } else {

      TFilePath srcFi = dst + TFilePath(fi.fileName());

      QFile::copy(fi.filePath(), toQString(srcFi));

    }

  }

}

//------------------------------------------------------------

/*

void TSystem::touchFile(const TFilePath &path)

{

QFile f(toQString(path));

if (!f.open(QIODevice::ReadWrite))

  throw TSystemException(path, "can't touch file!");

else

  f.close();

}

*/

//------------------------------------------------------------

/*

#ifdef _WIN32

wstring getFormattedMessage(DWORD lastError)

{

LPVOID lpMsgBuf;

FormatMessage(

    FORMAT_MESSAGE_ALLOCATE_BUFFER |

    FORMAT_MESSAGE_FROM_SYSTEM |

    FORMAT_MESSAGE_IGNORE_INSERTS,

    NULL,

    lastError,

    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language

    (LPTSTR) &lpMsgBuf,

    0,

    NULL

);

int wSize = MultiByteToWideChar(0,0,(char*)lpMsgBuf,-1,0,0);

if(!wSize)

  return wstring();

wchar_t* wBuffer = new wchar_t [wSize+1];

MultiByteToWideChar(0,0,(char*)lpMsgBuf,-1,wBuffer,wSize);

wBuffer[wSize]='\0';

wstring wmsg(wBuffer);

delete []wBuffer;

LocalFree(lpMsgBuf);

return wmsg;

}

//------------------------------------------------------------

#endif

*/

//------------------------------------------------------------

void TSystem::copyFile(const TFilePath &dst, const TFilePath &src,

                       bool overwrite) {

  assert(dst != TFilePath());

  if (dst == src) return;

  // Create the containing folder before trying to copy or it will crash!

  touchParentDir(dst);

  const QString &qDst = toQString(dst);

  if (overwrite && QFile::exists(qDst)) QFile::remove(qDst);

  if (!QFile::copy(toQString(src), qDst))

    throw TSystemException(dst, "can't copy file!");

}

//------------------------------------------------------------

void TSystem::renameFile(const TFilePath &dst, const TFilePath &src,

                         bool overwrite) {

  assert(dst != TFilePath());

  if (dst == src) return;

  const QString &qDst = toQString(dst);

  if (overwrite && QFile::exists(qDst)) QFile::remove(qDst);

  if (!QFile::rename(toQString(src), qDst))

    throw TSystemException(dst, "can't rename file!");

}

//------------------------------------------------------------

// gestire gli errori con GetLastError?

void TSystem::deleteFile(const TFilePath &fp) {

  if (!QFile::remove(toQString(fp)))

    throw TSystemException(fp, "can't delete file!");

}

//------------------------------------------------------------

void TSystem::hideFile(const TFilePath &fp) {

#ifdef _WIN32

  if (!SetFileAttributesW(fp.getWideString().c_str(), FILE_ATTRIBUTE_HIDDEN))

    throw TSystemException(fp, "can't hide file!");

#else  // MACOSX, and others

  TSystem::renameFile(TFilePath(fp.getParentDir() + L"." + fp.getLevelNameW()),

                      fp);

#endif

}

//------------------------------------------------------------

class CaselessFilepathLess final

    : public std::binary_function<tfilepath, bool="" tfilepath,=""> {</tfilepath,>

public:

  bool operator()(const TFilePath &a, const TFilePath &b) const {

    // Perform case sensitive compare, fallback to case insensitive.

    const wstring a_str = a.getWideString();

    const wstring b_str = b.getWideString();

    unsigned int i   = 0;

    int case_compare = -1;

    while (a_str[i] || b_str[i]) {

      if (a_str[i] != b_str[i]) {

        const wchar_t a_wchar = towlower(a_str[i]);

        const wchar_t b_wchar = towlower(b_str[i]);

        if (a_wchar < b_wchar) {

          return true;

        } else if (a_wchar > b_wchar) {

          return false;

        } else if (case_compare == -1) {

          case_compare = a_str[i] < b_str[i];

        }

      }

      i++;

    }

    return (case_compare == 1);

  }

};

//------------------------------------------------------------

/*! return the folder path list which is readable and executable

 */

void TSystem::readDirectory_Dir_ReadExe(TFilePathSet &dst,

                                        const TFilePath &path) {

  QStringList dirItems;

  readDirectory_DirItems(dirItems, path);

  for (const QString &item : dirItems) {

    TFilePath son = path + TFilePath(item.toStdWString());

    dst.push_back(son);

  }

}

//------------------------------------------------------------

// return the folder item list which is readable and executable

// (returns only names, not full path)

void TSystem::readDirectory_DirItems(QStringList &dst, const TFilePath &path) {

  if (!TFileStatus(path).isDirectory())

    throw TSystemException(path, " is not a directory");

  QDir dir(toQString(path));

#ifdef _WIN32

  QString pathStr = toQString(path);

  if (pathStr.startsWith("\\\\") || pathStr.startsWith("//")) {

    dst = dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot | QDir::Readable,

                        QDir::Name | QDir::LocaleAware);

    return;

  }

  // equivalent to sorting with QDir::LocaleAware

  auto const strCompare = [](const QString &s1, const QString &s2) {

    return QString::localeAwareCompare(s1, s2) < 0;

  };

  std::set<qstring, decltype(strcompare)=""> entries(strCompare);</qstring,>

  WIN32_FIND_DATA find_dir_data;

  QString dir_search_path = dir.absolutePath() + "\\*";

  auto addEntry           = [&]() {

    // QDir::NoDotAndDotDot condition

    if (wcscmp(find_dir_data.cFileName, L".") != 0 &&

        wcscmp(find_dir_data.cFileName, L"..") != 0) {

      // QDir::AllDirs condition

      if (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY &&

          (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) == 0) {

        entries.insert(QString::fromWCharArray(find_dir_data.cFileName));

      }

    }

  };

  HANDLE hFind =

      FindFirstFile((const wchar_t *)dir_search_path.utf16(), &find_dir_data);

  if (hFind != INVALID_HANDLE_VALUE) {

    addEntry();

    while (FindNextFile(hFind, &find_dir_data)) addEntry();

  }

  for (const QString &name : entries) dst.push_back(QString(name));

#else

  dst = dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot | QDir::Readable,

                      QDir::Name | QDir::LocaleAware);

#endif

}

//------------------------------------------------------------

/*! to retrieve the both lists with groupFrames option = on and off.

 */

void TSystem::readDirectory(TFilePathSet &groupFpSet, TFilePathSet &allFpSet,

                            const TFilePath &path) {

  if (!TFileStatus(path).isDirectory())

    throw TSystemException(path, " is not a directory");

  std::set<tfilepath, caselessfilepathless=""> fileSet_group;</tfilepath,>

  std::set<tfilepath, caselessfilepathless=""> fileSet_all;</tfilepath,>

  QStringList fil;

#ifdef _WIN32

  WIN32_FIND_DATA find_dir_data;

  QString dir_search_path = QDir(toQString(path)).absolutePath() + "\\*";

  auto addEntry           = [&]() {

    // QDir::NoDotAndDotDot condition

    if (wcscmp(find_dir_data.cFileName, L".") != 0 &&

        wcscmp(find_dir_data.cFileName, L"..") != 0) {

      // QDir::Files condition

      if ((find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0 &&

          (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) == 0) {

        fil.append(QString::fromWCharArray(find_dir_data.cFileName));

      }

    }

  };

  HANDLE hFind =

      FindFirstFile((const wchar_t *)dir_search_path.utf16(), &find_dir_data);

  if (hFind != INVALID_HANDLE_VALUE) {

    addEntry();

    while (FindNextFile(hFind, &find_dir_data)) addEntry();

  }

#else

  fil = QDir(toQString(path))

            .entryList(QDir::Files | QDir::NoDotAndDotDot | QDir::Readable);

#endif

  if (fil.size() == 0) return;

  for (int i = 0; i < fil.size(); i++) {

    QString fi = fil.at(i);

    TFilePath son = path + TFilePath(fi.toStdWString());

    // store all file paths

    fileSet_all.insert(son);

    // in case of the sequential files

    if (son.getDots() == "..") son = son.withFrame();

    // store the group. insersion avoids duplication of the item

    fileSet_group.insert(son);

  }

  groupFpSet.insert(groupFpSet.end(), fileSet_group.begin(),

                    fileSet_group.end());

  allFpSet.insert(allFpSet.end(), fileSet_all.begin(), fileSet_all.end());

}

//------------------------------------------------------------

void TSystem::readDirectory(TFilePathSet &dst, const QDir &dir,

                            bool groupFrames) {

  if (!(dir.exists() && QFileInfo(dir.path()).isDir()))

    throw TSystemException(TFilePath(dir.path().toStdWString()),

                           " is not a directory");

  QStringList entries;

#ifdef _WIN32

  WIN32_FIND_DATA find_dir_data;

  QString dir_search_path = dir.absolutePath() + "\\*";

  QDir::Filters filter    = dir.filter();

  // store name filters

  bool hasNameFilter = false;

  QList<qregexp> nameFilters;</qregexp>

  for (const QString &nameFilter : dir.nameFilters()) {

    if (nameFilter == "*") {

      hasNameFilter = false;

      break;

    }

    QRegExp regExp(nameFilter);

    regExp.setPatternSyntax(QRegExp::Wildcard);

    nameFilters.append(regExp);

    hasNameFilter = true;

  }

  auto addEntry = [&]() {

    // QDir::NoDotAndDotDot condition

    if (wcscmp(find_dir_data.cFileName, L".") != 0 &&

        wcscmp(find_dir_data.cFileName, L"..") != 0) {

      // QDir::Files condition

      if ((filter & QDir::Files) == 0 &&

          (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)

        return;

      // QDir::Dirs condition

      if ((filter & QDir::Dirs) == 0 &&

          (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))

        return;

      // QDir::Hidden condition

      if ((filter & QDir::Hidden) == 0 &&

          (find_dir_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN))

        return;

      QString fileName = QString::fromWCharArray(find_dir_data.cFileName);

      // name filter

      if (hasNameFilter) {

        bool matched = false;

        for (const QRegExp ®Exp : nameFilters) {

          if (regExp.exactMatch(fileName)) {

            matched = true;

            break;

          }

        }

        if (!matched) return;

      }

      entries.append(fileName);

    }

  };

  HANDLE hFind =

      FindFirstFile((const wchar_t *)dir_search_path.utf16(), &find_dir_data);

  if (hFind != INVALID_HANDLE_VALUE) {

    addEntry();

    while (FindNextFile(hFind, &find_dir_data)) addEntry();

  }

#else

  entries = (dir.entryList(dir.filter() | QDir::NoDotAndDotDot));

#endif

  TFilePath dirPath(dir.path().toStdWString());

  std::set<tfilepath, caselessfilepathless=""> fpSet;</tfilepath,>

  int e, eCount = entries.size();

  for (e = 0; e != eCount; ++e) {

    TFilePath path(dirPath + TFilePath(entries.at(e).toStdWString()));

    if (groupFrames && path.getDots() == "..") path = path.withFrame();

    fpSet.insert(path);

  }

  dst.insert(dst.end(), fpSet.begin(), fpSet.end());

}

//------------------------------------------------------------

void TSystem::readDirectory(TFilePathSet &dst, const TFilePath &path,

                            bool groupFrames, bool onlyFiles,

                            bool getHiddenFiles) {

  QDir dir(toQString(path));

  QDir::Filters filters(QDir::Files);

  if (!onlyFiles) filters |= QDir::Dirs;

  if (getHiddenFiles) filters |= QDir::Hidden;

  dir.setFilter(filters);

  readDirectory(dst, dir, groupFrames);

}

//------------------------------------------------------------

void TSystem::readDirectory(TFilePathSet &dst, const TFilePathSet &pathSet,

                            bool groupFrames, bool onlyFiles,

                            bool getHiddenFiles) {

  for (TFilePathSet::const_iterator it = pathSet.begin(); it != pathSet.end();

       it++)

    readDirectory(dst, *it, groupFrames, onlyFiles);

}

//------------------------------------------------------------

TFilePathSet TSystem::readDirectory(const TFilePath &path, bool groupFrames,

                                    bool onlyFiles, bool getHiddenFiles) {

  TFilePathSet filePathSet;

  readDirectory(filePathSet, path, groupFrames, onlyFiles, getHiddenFiles);

  return filePathSet;

}

//------------------------------------------------------------

TFilePathSet TSystem::readDirectory(const TFilePathSet &pathSet,

                                    bool groupFrames, bool onlyFiles,

                                    bool getHiddenFiles) {

  TFilePathSet dst;

  readDirectory(dst, pathSet, groupFrames, onlyFiles, getHiddenFiles);

  return dst;

}

//------------------------------------------------------------

void TSystem::readDirectoryTree(TFilePathSet &dst, const TFilePath &path,

                                bool groupFrames, bool onlyFiles) {

  if (!TFileStatus(path).isDirectory())

    throw TSystemException(path, " is not a directory");

  std::set<tfilepath, caselessfilepathless=""> fpSet;</tfilepath,>

  QFileInfoList fil = QDir(toQString(path)).entryInfoList();

  int i;

  for (i = 0; i < fil.size(); i++) {

    QFileInfo fi = fil.at(i);

    if (fi.fileName() == QString(".") || fi.fileName() == QString(".."))

      continue;

    TFilePath son = TFilePath(fi.filePath().toStdWString());

    if (TFileStatus(son).isDirectory()) {

      if (!onlyFiles) dst.push_back(son);

      readDirectoryTree(dst, son, groupFrames, onlyFiles);

    } else {

      if (groupFrames && son.getDots() == "..") {

        son = son.withFrame();

      }

      fpSet.insert(son);

    }

  }

  dst.insert(dst.end(), fpSet.begin(), fpSet.end());

}

//------------------------------------------------------------

void TSystem::readDirectoryTree(TFilePathSet &dst, const TFilePathSet &pathSet,

                                bool groupFrames, bool onlyFiles) {

  for (TFilePathSet::const_iterator it = pathSet.begin(); it != pathSet.end();

       it++)

    readDirectoryTree(dst, *it, groupFrames, onlyFiles);

}

//------------------------------------------------------------

TFilePathSet TSystem::readDirectoryTree(const TFilePath &path, bool groupFrames,

                                        bool onlyFiles) {

  TFilePathSet dst;

  readDirectoryTree(dst, path, groupFrames, onlyFiles);

  return dst;

}

//------------------------------------------------------------

TFilePathSet TSystem::readDirectoryTree(const TFilePathSet &pathSet,

                                        bool groupFrames, bool onlyFiles) {

  TFilePathSet dst;

  readDirectoryTree(dst, pathSet, groupFrames, onlyFiles);

  return dst;

}

//------------------------------------------------------------

TFilePathSet TSystem::packLevelNames(const TFilePathSet &fps) {

  std::set<tfilepath> tmpSet;</tfilepath>

  TFilePathSet::const_iterator cit;

  for (cit = fps.begin(); cit != fps.end(); ++cit)

    tmpSet.insert(cit->getParentDir() + cit->getLevelName());

  TFilePathSet fps2;

  for (std::set<tfilepath>::const_iterator c_sit = tmpSet.begin();</tfilepath>

       c_sit != tmpSet.end(); ++c_sit) {

    fps2.push_back(*c_sit);

  }

  return fps2;

}

//------------------------------------------------------------

TFilePathSet TSystem::getDisks() {

  TFilePathSet filePathSet;

  QFileInfoList fil = QDir::drives();

  int i;

  for (i = 0; i < fil.size(); i++)

    filePathSet.push_back(TFilePath(fil.at(i).filePath().toStdWString()));

  return filePathSet;

}

//------------------------------------------------------------

class LocalThread final : public QThread {

public:

  static LocalThread *currentThread() {

    return (LocalThread *)QThread::currentThread();

  }

  void sleep(TINT64 delay) { msleep(delay); }

};

void TSystem::sleep(TINT64 delay) {

  LocalThread::currentThread()->sleep(delay);

}

//--------------------------------------------------------------

int TSystem::getProcessorCount() { return QThread::idealThreadCount(); }

//--------------------------------------------------------------

bool TSystem::doesExistFileOrLevel(const TFilePath &fp) {

  if (TFileStatus(fp).doesExist()) return true;

  if (fp.isLevelName()) {

    const TFilePath &parentDir = fp.getParentDir();

    if (!TFileStatus(parentDir).doesExist()) return false;

    TFilePathSet files;

    try {

      files = TSystem::readDirectory(parentDir, false, true, true);

    } catch (...) {

    }

    TFilePathSet::iterator it, end = files.end();

    for (it = files.begin(); it != end; ++it) {

      if (it->getLevelNameW() == fp.getLevelNameW()) return true;

    }

  } else if (fp.getType() == "psd") {

    QString name(QString::fromStdWString(fp.getWideName()));

    name.append(QString::fromStdString(fp.getDottedType()));

    int sepPos              = name.indexOf("#");

    int dotPos              = name.indexOf(".", sepPos);

    int removeChars         = dotPos - sepPos;

    int doubleUnderscorePos = name.indexOf("__", sepPos);

    if (doubleUnderscorePos > 0) removeChars = doubleUnderscorePos - sepPos;

    name.remove(sepPos, removeChars);

    TFilePath psdpath(fp.getParentDir() + TFilePath(name.toStdWString()));

    if (TFileStatus(psdpath).doesExist()) return true;

  }

  return false;

}

//--------------------------------------------------------------

void TSystem::copyFileOrLevel_throw(const TFilePath &dst,

                                    const TFilePath &src) {

  if (src.isLevelName()) {

    TFilePathSet files;

    files = TSystem::readDirectory(src.getParentDir(), false);

    TFilePathSet::iterator it, end = files.end();

    for (it = files.begin(); it != end; ++it) {

      if (it->getLevelNameW() == src.getLevelNameW()) {

        TFilePath src1 = *it;

        TFilePath dst1 = dst.withFrame(it->getFrame());

        TSystem::copyFile(dst1, src1);

      }

    }

  } else

    TSystem::copyFile(dst, src);

}

//--------------------------------------------------------------

void TSystem::renameFileOrLevel_throw(const TFilePath &dst,

                                      const TFilePath &src,

                                      bool renamePalette) {

  if (renamePalette && ((src.getType() == "tlv") || (src.getType() == "tzp") ||

                        (src.getType() == "tzu"))) {

    // Special case: since renames cannot be 'grouped' in the UI, palettes are

    // automatically

    // renamed here if required

    const char *type = (src.getType() == "tlv") ? "tpl" : "plt";

    TFilePath srcpltname(src.withNoFrame().withType(type));

    TFilePath dstpltname(dst.withNoFrame().withType(type));

    if (TSystem::doesExistFileOrLevel(src) &&

        TSystem::doesExistFileOrLevel(srcpltname))

      TSystem::renameFile(dstpltname, srcpltname, false);

  }