paste

#pragma once


#include "File.h"
#include "FileSystemObject.h"
#include "FileSystemObjectsContainer.h"
#include "Directory.h"
#include "ByteContainer.h"
#include "Shortcuts.h"

#include <string>
#include <vector>
#include <sstream>
#include <stack>

class Explorer
{
private:
    std::shared_ptr<FileSystemObjectsContainer> currLocation;
    std::vector<std::shared_ptr<FileSystemObject>>& objects;
    std::stack<std::shared_ptr<FileSystemObject>> clipboard;


    void moveFileAtCurrentLocation(const std::shared_ptr<FileSystemObject>& file)
    {
        std::shared_ptr<FileSystemObjectsContainer> fileParent = std::dynamic_pointer_cast<FileSystemObjectsContainer>(file->getParent().lock());
        std::weak_ptr<FileSystemObject> newParent = std::dynamic_pointer_cast<FileSystemObject>(currLocation);
        file->setParent(newParent);


        std::vector<std::shared_ptr<FileSystemObject>> kidsOfNewParent(currLocation->begin(), currLocation->end());
        kidsOfNewParent.push_back(file);

        if(fileParent != nullptr)
        {
            std::vector<std::shared_ptr<FileSystemObject>> kidsOfOldParent(fileParent->begin(),fileParent->end());
            kidsOfOldParent.erase(std::find(kidsOfOldParent.begin(), kidsOfOldParent.end(), file));
        }else
        {
            objects.erase(std::find(objects.begin(), objects.end(), file));
        }
    }

public:
    Explorer(std::vector<std::shared_ptr<FileSystemObject>>& rootObjects) : objects(rootObjects), currLocation(nullptr) {}

    void cut(const std::string& name)
    {
        std::shared_ptr<FileSystemObject> file = this->getFile(name);
        this->clipboard.push(file);
    }


    void paste()
    {
        if(!this->clipboard.empty())
        {
            std::shared_ptr<FileSystemObject> file = clipboard.top();
            moveFileAtCurrentLocation(file);
            clipboard.pop();
        }
    }

};