#pragma once

#ifndef T_FILEPATH_INCLUDED

#define T_FILEPATH_INCLUDED

#include "tcommon.h"

#include "texception.h"

#undef DVAPI

#undef DVVAR

#ifdef TSYSTEM_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

#include <qstring></qstring>

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

/*

  This is an example of how to use TFilePath and TFrameId classes.

*/

//!\include frameid_ex.cpp

//! The class TFrameId describes a frame identified by an integer number of four

//! figures and, in case, by a character (necessary for added frames)

class DVAPI TFrameId {

  int m_frame;

  QString m_letter;  // serve per i frame "aggiunti" del tipo pippo.0001a.tzp =>

                     // f=1 c='a'

  int m_zeroPadding;

  char m_startSeqInd;

public:

  enum {

    EMPTY_FRAME = -1,  // es. pippo..tif

    NO_FRAME    = -2   // es. pippo.tif

  };

  enum FrameFormat {

    FOUR_ZEROS,

    NO_PAD,

    UNDERSCORE_FOUR_ZEROS,  // pippo_0001.tif

    UNDERSCORE_NO_PAD,

    CUSTOM_PAD,

    UNDERSCORE_CUSTOM_PAD,

    USE_CURRENT_FORMAT

  };  // pippo_1.tif

  TFrameId(int f = EMPTY_FRAME)

      : m_frame(f), m_letter(""), m_zeroPadding(4), m_startSeqInd('.') {}

  TFrameId(int f, char c, int p = 4, char s = '.')

      : m_frame(f), m_zeroPadding(p), m_startSeqInd(s) {

    m_letter = (c == '\0') ? "" : QString(c);

  }

  TFrameId(int f, QString str, int p = 4, char s = '.')

      : m_frame(f), m_letter(str), m_zeroPadding(p), m_startSeqInd(s) {}

  inline bool operator==(const TFrameId &f) const {

    return f.m_frame == m_frame && f.m_letter == m_letter;

  }

  inline bool operator!=(const TFrameId &f) const {

    return (m_frame != f.m_frame || m_letter != f.m_letter);

  }

  inline bool operator<(const TFrameId &f) const {

    return (m_frame < f.m_frame ||

            (m_frame == f.m_frame &&

             QString::localeAwareCompare(m_letter, f.m_letter) < 0));

  }

  inline bool operator>(const TFrameId &f) const { return f < *this; }

  inline bool operator>=(const TFrameId &f) const { return !operator<(f); }

  inline bool operator<=(const TFrameId &f) const { return !operator>(f); }

  const TFrameId &operator++();

  const TFrameId &operator--();

  TFrameId &operator=(const TFrameId &f) {

    m_frame       = f.m_frame;

    m_letter      = f.m_letter;

    m_zeroPadding = f.m_zeroPadding;

    m_startSeqInd = f.m_startSeqInd;

    return *this;

  }

  bool isEmptyFrame() const { return m_frame == EMPTY_FRAME; }

  bool isNoFrame() const { return m_frame == NO_FRAME; }

  // operator string() const;

  std::string expand(FrameFormat format = FOUR_ZEROS) const;

  int getNumber() const { return m_frame; }

  QString getLetter() const { return m_letter; }

  void setZeroPadding(int p) { m_zeroPadding = p; }

  int getZeroPadding() const { return m_zeroPadding; }

  void setStartSeqInd(char c) { m_startSeqInd = c; }

  char getStartSeqInd() const { return m_startSeqInd; }

  FrameFormat getCurrentFormat() const {

    switch (m_zeroPadding) {

    case 0:

      return (m_startSeqInd == '.' ? NO_PAD : UNDERSCORE_NO_PAD);

    case 4:

      return (m_startSeqInd == '.' ? FOUR_ZEROS : UNDERSCORE_FOUR_ZEROS);

    default:

      break;

    }

    return (m_startSeqInd == '.' ? CUSTOM_PAD : UNDERSCORE_CUSTOM_PAD);

  }

};

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

/*! \relates TFrameId*/

inline std::ostream &operator<<(std::ostream &out, const TFrameId &f) {

  if (f.isNoFrame())

    out << "<noframe>";</noframe>

  else if (f.isEmptyFrame())

    out << "''";

  else

    out << f.expand().c_str();

  return out;

}

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

/*!The class TFilePath defines a file path.Its constructor creates a string

   according

   to the platform and to certain rules.For more information see the

   constructor.*/

class DVAPI TFilePath {

  static bool m_underscoreFormatAllowed;

  // specifies file path condition for sequential image for each project.

  // See filepathproperties.h

  static bool m_useStandard;

  static bool m_acceptNonAlphabetSuffix;

  static int m_letterCountForSuffix;

  std::wstring m_path;

  struct TFilePathInfo {

    QString parentDir;  // with slash

    QString levelName;

    QChar sepChar;  // either "." or "_"

    TFrameId fId;

    QString extension;

  };

  void setPath(std::wstring path);

public:

  /*! this static method allows correct reading of levels in the form

   * pippo_0001.tif (represented  always as pippo..tif) */

  static void setUnderscoreFormatAllowed(bool state) {

    m_underscoreFormatAllowed = state;

  }

  // called from TProjectManager::getCurrentProject() and

  // ProjectPopup::updateProjectFromFields

  // returns true if something changed

  static bool setFilePathProperties(bool useStandard, bool acceptNonAlphaSuffix,

                                    int letterCountForSuffix) {

    if (m_useStandard == useStandard &&

        m_acceptNonAlphabetSuffix == acceptNonAlphaSuffix &&

        m_letterCountForSuffix == letterCountForSuffix)

      return false;

    m_useStandard             = useStandard;

    m_acceptNonAlphabetSuffix = acceptNonAlphaSuffix;

    m_letterCountForSuffix    = letterCountForSuffix;

    return true;

  }

  static bool useStandard() { return m_useStandard; }

  static QString fidRegExpStr();

  /*!This constructor creates a string removing redundances ('//', './',etc.)

and final slashes,

      correcting (redressing) the "twisted" slashes.

      Note that if the current directory is ".", it becomes "".

If the path is "<alpha>:" a slash will be added*/</alpha>

  explicit TFilePath(const char *path = "");

  explicit TFilePath(const std::string &path);

  explicit TFilePath(const std::wstring &path);

  explicit TFilePath(const QString &path);

  ~TFilePath() {}

  TFilePath(const TFilePath &fp) : m_path(fp.m_path) {}

  TFilePath &operator=(const TFilePath &fp) {

    m_path = fp.m_path;

    return *this;

  }

  bool operator==(const TFilePath &fp) const;

  inline bool operator!=(const TFilePath &fp) const {

    return !(m_path == fp.m_path);

  }

  bool operator<(const TFilePath &fp) const;

  const std::wstring getWideString() const;

  QString getQString() const;

  /*!Returns:

   a.  "" if there is no filename extension

   b. "." if there is a filename extension but no frame

   c.".." if there are both filename extension and frame */

  std::string getDots() const;  // ritorna ""(no estensione), "."(estensione, no

                                // frame) o ".."(estensione e frame)

  /*!Returns the filename extension, including leading period (.).

      Returns "" if there is no filename extension.*/

  std::string getDottedType() const;  // ritorna l'estensione con il PUNTO (se

                                      // non c'e' estensione ritorna "")

  /*!Returns the filename extension, escluding leading period (.).

      Returns "" if there is no filename extension.*/

  std::string getUndottedType() const;  // ritorna l'estensione senza PUNTO

  /*!It is equal to getUndottedType():

      Returns the filename extension, excluding leading period (.).

      Returns "" if there is no filename extension.*/

  std::string getType() const {

    return getUndottedType();

  }  // ritorna l'estensione SENZA PUNTO

  /*!Returns the base filename (no extension, no dots, no slash)*/

  std::string getName() const;       // noDot! noSlash!

  std::wstring getWideName() const;  // noDot! noSlash!

  /*!Returns the filename (with extension, escluding in case the frame number).

      ex.: TFilePath("/pippo/pluto.0001.gif").getLevelName() == "pluto..gif"

   */

  std::string getLevelName()

      const;  // es. TFilePath("/pippo/pluto.0001.gif").getLevelName() ==

              // "pluto..gif"

  std::wstring getLevelNameW()

      const;  // es. TFilePath("/pippo/pluto.0001.gif").getLevelName() ==

              // "pluto..gif"

  /*!Returns the parent directory escluding the eventual final slash.*/

  TFilePath getParentDir() const;  // noSlash!;

  TFrameId getFrame() const;

  bool isFfmpegType() const;

  bool isLevelName()

      const;  //{return getFrame() == TFrameId(TFrameId::EMPTY_FRAME);};

  bool isAbsolute() const;

  bool isRoot() const;

  bool isEmpty() const { return m_path == L""; }

  /*!Return a TFilePath with extension type.

type is a string that indicate the filename extension(ex:. bmp or .bmp)*/

  TFilePath withType(const std::string &type) const;

  /*!Return a TFilePath with filename "name".*/

  TFilePath withName(const std::string &name) const;

  /*!Return a TFilePath with filename "name". Unicode*/

  TFilePath withName(const std::wstring &name) const;

  /*!Return a TFilePath with parent directory "dir".*/

  TFilePath withParentDir(const TFilePath &dir) const;

  /*!Return a TFilePath without parent directory */

  TFilePath withoutParentDir() const { return withParentDir(TFilePath()); }

  /*!Return a TFilePath with frame "frame".*/

  TFilePath withFrame(

      const TFrameId &frame,

      TFrameId::FrameFormat format = TFrameId::USE_CURRENT_FORMAT) const;

  /*!Return a TFilePath with a frame identified by an integer number "f".*/

  TFilePath withFrame(int f) const { return withFrame(TFrameId(f)); }

  /*!Return a TFilePath with a frame identified by an integer and by a

   * character*/

  TFilePath withFrame(int f, char letter) const {

    return withFrame(TFrameId(f, letter));

  }

  TFilePath withFrame() const {

    return withFrame(TFrameId(TFrameId::EMPTY_FRAME));

  }

  TFilePath withNoFrame() const {

    return withFrame(TFrameId(TFrameId::NO_FRAME));

  }  // pippo.tif

  TFilePath operator+(const TFilePath &fp) const;

  TFilePath &operator+=(const TFilePath &fp) /*{*this=*this+fp;return *this;}*/;

  inline TFilePath operator+(const std::string &s) const {

    return operator+(TFilePath(s));

  }

  inline TFilePath &operator+=(const std::string &s) {

    return operator+=(TFilePath(s));

  }

  TFilePath &operator+=(const std::wstring &s);

  TFilePath operator+(const std::wstring &s) const {

    TFilePath res(*this);

    return res += s;

  }

  bool isAncestorOf(const TFilePath &) const;

  TFilePath operator-(

      const TFilePath &fp) const;  // TFilePath("/a/b/c.txt")-TFilePath("/a/")

                                   // == TFilePath("b/c.txt");

  // se fp.isAncestorOf(this) == false ritorna this

  bool match(const TFilePath &fp)

      const;  // sono uguali a meno del numero di digits del frame

  // '/a/b/c.txt' => head='a' tail='b/c.txt'

  void split(std::wstring &head, TFilePath &tail) const;

  TFilePathInfo analyzePath() const;

  QChar getSepChar() const;

};

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

class TMalformedFrameException final : public TException {

public:

  TMalformedFrameException(const TFilePath &fp,

                           const std::wstring &msg = std::wstring())

      : TException(fp.getWideName() + L":" + msg) {}

private:

  TMalformedFrameException();

};

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

DVAPI std::ostream &operator<<(std::ostream &out, const TFilePath &path);

typedef std::list<tfilepath> TFilePathSet;</tfilepath>

#endif  // T_FILEPATH_INCLUDED