#include "QWorld.h"
#include "QDateTime"

#pragma region 文件夹操作
#pragma region 删除N天前的文件
//删除N天前的文件
bool FolderOperation::FindFileForDelete(QString key, QString path, int day)
{
	if (key != "59226f4700f1cc8a5de755d501af308d2d2")
	{
		return false;
	}
	try
	{
		QDateTime now = QDateTime::currentDateTime();
		QDateTime dateTime1 = now.addDays(day);
		QDateTime dateTime2;
		QDir dir(path);
		QFileInfoList fileList = dir.entryInfoList();
		for (QFileInfo f : fileList)
		{
			if (f.baseName() == "")
			{
				continue;
			}
			dateTime2 = f.created();			
			if (dateTime2 < dateTime1)
			{
				dir.remove(f.absoluteFilePath());
			}
		}
		return true;
	}
	catch (...)
	{
		return false;
	}
}
#pragma endregion

#pragma region 删除N天前的文件夹
//删除N天前的文件夹
bool FolderOperation::FindFolderForDelete(QString key, QString path, int day)
{
	if (key != "59226f4700f1cc8a5de755d501af308d2d2")
	{
		return false;
	}
	try
	{		
		QList<QString> dirs;		
		dirs.reserve(1000);
		dirs.clear();
		QDir dir(path);
		dir.setFilter(QDir::Dirs);
		for (auto fullDir : dir.entryInfoList())
		{
			if (fullDir.fileName() == "." || fullDir.fileName() == "..")
				continue;
			dirs.push_back(fullDir.absoluteFilePath());
		}
		if (dirs.size() < day)
		{
			return false;
		}
		else
		{
			QList<quint64> times = QList<quint64>();
			times.reserve(1000);
			times.clear();
			QList<QString> folder = QList<QString>();
			folder.reserve(1000);
			folder.clear();
			for (auto dir : dirs)
			{
				QFileInfo fl(dir);
				QDateTime DT = fl.created();
				QDateTime dt0(QDate(1970, 1, 1));
				quint64 time = DT.toTime_t() - dt0.toTime_t();
				times.append(time);
				folder.append(dir);
			}
			//获取数组中最小值的索引
			int index = -1;
			QVector<quint64> max_and_min(2);
			if (times.size() != 0)
			{
				max_and_min[1] = times[0];
				index = 0;
				for (int i = 0; i < times.size(); i++)
				{
					if (max_and_min[1] > times[i])
					{
						index = i;
						max_and_min[1] = times[i];
					}
				}
			}
			QDir dir_x;
			if (dir_x.exists(folder[index]))
			{
				dir_x.setPath(folder[index]);
				dir_x.removeRecursively();
			}
			return true;
		}		
	}
	catch (...)
	{
		return false;
	}
}
#pragma endregion
#pragma endregion