#ifndef __FIND_FILES_COLLECTION__
#define __FIND_FILES_COLLECTION__

#ifndef	WIN32
#error now only for WIN32(platform).
#endif

#include <string>
#include <vector>
using namespace std;

#ifdef UNICODE
typedef wstring TString;
#else
typedef string TString;
#endif

#pragma once

// advanced find files collection;
namespace affsco
{
	CONST INT nMaxLimit = 0x100000;	//--1048576
	CONST INT nDefLimit = 0x10000;	//--65536

	CONST TCHAR		c_pathSeparator = _T('\\');
	CONST TString	s_pathSeparator = _T("\\");

	class Implffsco
	{
		INT m_nLimit;
		INT m_nIsonym;	// 文件名相同的次数;
		BOOL m_bFindSubFolders;
		vector<TString> m_vtAllFiles;
		vector<TString> m_vtSubFolders;
		vector<TString> m_vtFiles;
		vector<TString> m_vtJustFNames;

	private:
		inline INT CheckLimit() {
			return GetAllFilesCount() == GetLimit();
		}

		inline static TString UpperCase(IN const TString &Str){
			const TCHAR aazz = _T('z') - _T('Z');
			TString sResult;
			for (TString::const_iterator it = Str.begin(); Str.end() != it; it++)
			{
				if (_T('a') <= *it && *it <= _T('z'))
					sResult.append(1, *it - aazz);
				else
					sResult.append(1, *it);
			}
			return sResult;
		}

	public:
		Implffsco(void);
		~Implffsco(void);

		static int Match(IN CONST TString &sExt, IN CONST TString &sFile);
		TString GetFileName(CONST INT &nPos = 0){
			return m_vtAllFiles.at(nPos);
		}

		INT GetAllFilesCount() { 
			return m_vtFiles.size() + m_vtSubFolders.size();
		}

		INT GetFilesCount() {
			return m_vtFiles.size();
		}

		INT GetDirsCount(){
			return m_vtSubFolders.size();
		}

		CONST vector<TString> &GetAllFiles()CONST {
			return m_vtAllFiles;
		}

		CONST vector<TString> &GetFiles()CONST {
			return m_vtFiles;
		}

		CONST vector<TString> &GetSubFolders()CONST {
			return m_vtSubFolders;
		}

		CONST vector<TString> &GetFNames()CONST {
			return m_vtJustFNames;
		}

		INT GetLimit() const {
			return m_nLimit;
		}

		inline void SetLimit(IN CONST INT &nLimit) {
			if(nLimit < 1)
				m_nLimit = nDefLimit;
			if (nLimit < nMaxLimit )
				m_nLimit = nLimit;
		}

		BOOL IsFindSubFolders() const {
			return m_bFindSubFolders;
		}

		void SetFindDir(BOOL bFindSubFolders=TRUE)	{
			m_bFindSubFolders = bFindSubFolders;
		}

		BOOL IsaDirectory(CONST TString &sDirectory){
			return (FILE_ATTRIBUTE_DIRECTORY == GetFileAttributes(sDirectory.c_str()));
		}

		VOID ReCleart(){
			m_vtAllFiles.clear(); 
			m_vtFiles.clear();
			m_vtSubFolders.clear();
			m_vtJustFNames.clear();
		}

		VOID FindFiles(IN CONST TString& sTargetDirectory, IN CONST TString& sFileExt);
		VOID FindFilesEx(IN CONST TString& sTargetDirectory, IN CONST TString& sFileExt);
		VOID JustFindNames(IN CONST TString& sTargetDirectory, IN CONST TString& sFileExt);
	};
};
#endif