class ViewLayer:
	public Layer
{
private:
	//剩余内存大小
	int memoryLarge;
public:
	//添加文件
	bool addFile(CCString name);
	//添加文件夹
	bool addCatalog(CCString name);
	//检查名字是否合法
	bool checkName(CCString name);
	//删除文件夹
	void deleteCatalog(int num);
	//删除文件
	void deleteFile(int num);
	//更新文件夹结构
	void addList(int num);
	//分配内存
	int findAdress(int size);
public:
	//更新视图
	void updataView();
};


//文件(夹)类
class File:
	public Sprite
{
/*
	type = 0为目录 type = 1为文件
	目录没有大小 
	文件有大小
*/
private:
	//名字
	CCString name;
	int type;
	//内存中的起始地址
	int adress;
	//内存中所占的大小
	int memoryLong;
	//是否被删除了
	bool isLive;
	//是第几个文件(夹)
	int num;
	//文件(夹)路径
	string path;
	//是否是根文件夹
	bool isRoot;
public:
	File(CCString name,int type, int adress, int memoryLong);
	File();
	~File();
public:
	void setName(CCString name);
	CCString getName();
	void setType(int type);
	int getType();
	void setAdress(int adress);
	int getAdress();
	void setMemoryLong(int memoryLong);
	int getMemoryLong();
	void setIsLive(bool isLive);
	bool getIsLive();
	CCString getFile();
	void setNum(int num);
	int getNum();
	void setPath(string fathrePath);
	string getPath();
	void setIsRoot(bool isRoot);
	bool getIsRoot();
};

//删除文件
void ViewLayer::deleteFile(int num)
{
	//硬盘上删除该文件
	File* file = fileVec.at(num);
	file->setIsLive(false);
	string filename = file->getPath();
	filename = filename + ".txt";
	string command = "del " + filename;
	system(command.c_str());

	//维护内存块
	bool flag = true;
	int position = fileToVec[num];
	freeMemoryArr.at(position)->setType(0);

	int behind = position - 1;
	while (behind > 1 && freeMemoryArr.at(behind)->getType() == 2)
	{
		behind--;
	}
	int front = position + 1;
	while (front + 1 < freeMemoryArr.size() && freeMemoryArr.at(front)->getType() == 2)
	{
		front++;
	}

	if (behind >= 0 && freeMemoryArr.at(behind)->getType() == 0)
	{
		freeMemoryArr.at(behind)->setLong(freeMemoryArr.at(behind)->getLong() + fileVec.at(num)->getMemoryLong());
		freeMemoryArr.at(position)->setType(2);
		flag = false;
	}
	if (front < freeMemoryArr.size() && freeMemoryArr.at(front)->getType() == 0)
	{
		if (!flag)
		{
			freeMemoryArr.at(behind)->setLong(freeMemoryArr.at(behind)->getLong() + freeMemoryArr.at(front)->getLong());
			freeMemoryArr.at(position)->setType(2);
			freeMemoryArr.at(front)->setType(2);
		}
		else
		{
			freeMemoryArr.at(position)->setLong(freeMemoryArr.at(position)->getLong() + freeMemoryArr.at(front)->getLong());
			freeMemoryArr.at(front)->setType(2);
		}
	}
}

//新建文件
bool ViewLayer::addFile(CCString name)
{
	//在硬盘上创建该文件
	File * file = new File(name,1, 0, 0);
	file->setPath(newfile->getPath());
	string nameStr = file->getPath();
	string filename = nameStr + ".txt";

	//将内容写入该文件
	freopen(filename.c_str(), "w", stdout);
	cout << file->getName().getCString() << ".txt" << endl;
	fclose(stdout);

	//获取文件的大小
	const char *filepath = filename.c_str();
	struct _stat info;
	_stat(filepath, &info);
	int size = info.st_size;

	int adress = findAdress(size);
	//满足内存限制
	if (adress != -1)
	{
		//处理内存块
		int s = freeMemoryArr.at(adress)->getStart();
		int l = freeMemoryArr.at(adress)->getLong();
		freeMemoryArr.at(adress)->setLong(size);
		freeMemoryArr.at(adress)->setType(1);
		freeMemory *f = new freeMemory(s + size, l - size, 0);
		freeMemoryArr.insert(adress + 1, f);

		//处理file信息
		memoryLarge -= size;
		fileVec.pushBack(file);
		file->setNum(fileVec.size() - 1);
		addList(file->getNum());
		file->setMemoryLong(size);
		file->setAdress(freeMemoryArr.at(adress)->getStart());
		fileToVec[file->getNum()] = adress;
	}
	//不满足内存限制
	else
	{
		string command = "del " + filename;
		system(command.c_str());
		file->setIsLive(false);
		return false;
	}
	return true;
}