#pragma once
/////////////////////////////////////////////////////////////////////////
// MT1Q4.h - Extensible File Manager                                   //
//                                                                     //
// Jim Fawcett, CSE687 - Object Oriented Design, Midterm, Spring 2018  //
/////////////////////////////////////////////////////////////////////////
/*
*  - This solution uses a template class where the template parameter
*    has application specific operations for discovered files and dirs.
*  - You could also use inheritance, and override virtual methods for
*    doFile and doDir in application specific derived classes.
*/
#include <string>
#include <vector>
#include "FileSystem.h"

template<class App>
class FileMgr
{
public:
  using Patterns = std::vector<std::string>;
  using Files = std::vector<std::string>;
  using Dirs = std::vector<std::string>;

  bool search(const std::string& path);
  void addPattern(const std::string& pattern)
  {
    patterns_.push_back(pattern);
  }
private:
  std::vector<std::string> patterns_;
};

template<typename App>
bool FileMgr<App>::search(const std::string& path)
{
  if (!FileSystem::Directory::exists(path))
    return false;
  App app;
  std::string fullPath = FileSystem::Path::getFullFileSpec(path);
  app.doDir(fullPath);

  for (auto patt : patterns_)
  {
    Files files = FileSystem::Directory::getFiles(fullPath, patt);
    for (auto file : files)
      app.doFile(file);
  }
  Dirs dirs = FileSystem::Directory::getDirectories(path);
  for (auto dir : dirs)
  {
    if (dir == "." || dir == "..")
      continue;
    std::string fullDir = fullPath + "\\" + dir;
    search(fullDir);
  }
  return true;
}