/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
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#ifndef __DIRECTORY_ITERATOR_H
#define __DIRECTORY_ITERATOR_H

class DirectoryIterator {
public:
  enum {
    kTypeFile      = 1,
    kTypeDirectory = 2,
    kTypeSpecial   = 4,
    kTypeAll       = (kTypeFile | kTypeDirectory | kTypeSpecial)
  };

  /// Constructor
  DirectoryIterator();

  /// Constructor
  /// @param[in] path         The path of the directory to iterate.
  /// @param[in] iterateWhat  The types of files to list.
  DirectoryIterator(const char *path, unsigned iterateWhat);

  /// Destructor
  ~DirectoryIterator();

  /// Start looking in a particular directory.
  /// @param[in] path         The path of the directory to iterate.
  /// @param[in] iterateWhat  The types of files to list.
  /// @return   0   If successful,
  ///          -1   If path was NULL,
  ///         -99   If there are no files.
  int init(const char *path, unsigned iterateWhat);

  /// Get the next file.
  /// @param pName[out]   a place to store the name of the next file.
  /// @param type[out]    a place to store the type of the next file.
  /// @return   0   If successful,
  ///          -1   If path was NULL,
  ///         -99   If there are no more files.
  int next(const char **pName, unsigned *type);

private:
  struct Impl;
  Impl *m_impl;
};

#endif // __DIRECTORY_ITERATOR_H