/*
===========================================================================
blockattack - Block Attack - Rise of the Blocks
Copyright (C) 2005-2012 Poul Sander

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see http://www.gnu.org/licenses/

Source information and contacts persons can be found at
http://blockattack.sf.net
===========================================================================
*/

/*
listFiles.cpp
*/

#include "listFiles.h"

/*ListFiles::ListFiles()
{

}

ListFiles::~ListFiles()
{

}*/


void ListFiles::setDirectory(string directory)
{
	for (int i=0; i<MAX_NR_OF_FILES; i++)
		filenames[i]="";
#if defined(_WIN32)
	DWORD dwError;
	directory+="/*";
	hFind = FindFirstFile(directory.c_str(), &FindFileData);
	if (hFind == INVALID_HANDLE_VALUE)
	{
		cout << "Invalid file handle. Error is " << GetLastError() << endl;
	}
	else
	{
		nrOfFiles=0;
		filenames[nrOfFiles] = FindFileData.cFileName;
		cout << "File: " << FindFileData.cFileName << endl;
		while ((FindNextFile(hFind, &FindFileData) != 0) && FindFileData.cFileName[0]!='.' && (nrOfFiles<MAX_NR_OF_FILES-1))
		{
			nrOfFiles++;
			filenames[nrOfFiles] = FindFileData.cFileName;
			cout << "File: " << FindFileData.cFileName << endl;
		}

		dwError = GetLastError();
		FindClose(hFind);
		if (dwError != ERROR_NO_MORE_FILES)
		{
			cout << "FindNextFile error. Error is " << dwError << endl;
		}
	}
#elif defined(__unix__)
	DIR *DirectoryPointer;
	struct dirent *dp;
	nrOfFiles=0;
	//cout << "Will look in: " << directory << endl;
	DirectoryPointer = opendir(directory.c_str());
	if(!DirectoryPointer)
		return;
	while ((dp=readdir(DirectoryPointer))&&(nrOfFiles<MAX_NR_OF_FILES-1))
	{
		string name = (string)(char*)dp->d_name;
		if (!isInList(name) && name[0]!='.' )
		{
			nrOfFiles++;
			filenames[nrOfFiles] = name;
		}
	}
	closedir(DirectoryPointer);


#endif
	startFileNr=FIRST_FILE;
	//Put code here
}

bool ListFiles::isInList(string name)
{
	for (int i=0; (i<=nrOfFiles); i++)
	{
		if (0==strcmp(name.c_str(),filenames[i].c_str()))
		{
			return true;
		}
	}
	return false;
}

void ListFiles::setDirectory2(string dic)
{
#if defined(__unix__)
	DIR *DirectoryPointer;
	struct dirent *dp;
	//cout << "Will look in: " << dic << endl;
	DirectoryPointer = opendir(dic.c_str());
	if(!DirectoryPointer)
		return;
	while ((dp=readdir(DirectoryPointer))&&(nrOfFiles<MAX_NR_OF_FILES-1))
	{
		string name = (string)(char*)dp->d_name;
		if (!isInList(name) && name != "." && name != "..")
		{
			nrOfFiles++;
			filenames[nrOfFiles] = name;
		}
	}
	closedir(DirectoryPointer);

	startFileNr=FIRST_FILE;
#endif
}

string ListFiles::getFileName(int nr)
{
	if (startFileNr+nr<MAX_NR_OF_FILES)
		return filenames[startFileNr+nr];
	else
	{
		string emptyString="";
		return "";
	}
}

bool ListFiles::fileExists(int nr)
{
	string emptyString="";
	if (startFileNr+nr<MAX_NR_OF_FILES)
	{
		if (filenames[startFileNr+nr]==emptyString)
			return false;
		else
			return true;
	}
	else
		return false;
}

void ListFiles::back()
{
	if (startFileNr>FIRST_FILE)
		startFileNr = startFileNr-10;
	if (startFileNr<FIRST_FILE)
		startFileNr = FIRST_FILE;
}

void ListFiles::forward()
{
	if (startFileNr<nrOfFiles-FIRST_FILE)
		startFileNr = startFileNr+10;
}

string ListFiles::getRandom()
{
	int numberOfFiles = nrOfFiles-FIRST_FILE+1;
	if(numberOfFiles<1)
		return "";
	int select = rand()%numberOfFiles;
	return filenames[FIRST_FILE+select];
}