---

#pragma once

#include <fstream>

namespace CryptoForm {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Windows::Forms;
	using namespace System::IO;
	using namespace std;

	public ref class Form1 : public Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
		}

	protected:
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}

	private:
		TextBox^ txtInput;
		TextBox^ txtOutput;
		TextBox^ txtPassword;
		Button^ btnRun;

		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		void InitializeComponent(void)
		{
			this->txtInput = gcnew TextBox();
			this->txtOutput = gcnew TextBox();
			this->txtPassword = gcnew TextBox();
			this->btnRun = gcnew Button();

			this->SuspendLayout();

			// txtInput
			this->txtInput->Location = System::Drawing::Point(20, 20);
			this->txtInput->Width = 250;
			this->txtInput->PlaceholderText = "Входной файл";

			// txtOutput
			this->txtOutput->Location = System::Drawing::Point(20, 60);
			this->txtOutput->Width = 250;
			this->txtOutput->PlaceholderText = "Выходной файл";

			// txtPassword
			this->txtPassword->Location = System::Drawing::Point(20, 100);
			this->txtPassword->Width = 250;
			this->txtPassword->PlaceholderText = "Пароль";

			// btnRun
			this->btnRun->Text = "Шифровать / Дешифровать";
			this->btnRun->Location = System::Drawing::Point(20, 140);
			this->btnRun->Click += gcnew EventHandler(this, &Form1::RunCrypto);

			// Form
			this->ClientSize = System::Drawing::Size(300, 200);
			this->Controls->Add(this->txtInput);
			this->Controls->Add(this->txtOutput);
			this->Controls->Add(this->txtPassword);
			this->Controls->Add(this->btnRun);
			this->Text = "XOR Шифратор";

			this->ResumeLayout(false);
			this->PerformLayout();
		}
#pragma endregion

	private:
		void RunCrypto(Object^ sender, EventArgs^ e)
		{
			string inFile = msclr::interop::marshal_as<string>(txtInput->Text);
			string outFile = msclr::interop::marshal_as<string>(txtOutput->Text);
			string password = msclr::interop::marshal_as<string>(txtPassword->Text);

			ifstream f_in(inFile.c_str(), ios::binary);
			ofstream f_out(outFile.c_str(), ios::binary);

			if (!f_in || !f_out)
			{
				MessageBox::Show("Ошибка открытия файла!");
				return;
			}

			unsigned char b;
			int k = 0;

			while (f_in.read((char*)&b, sizeof(b)))
			{
				b = b ^ password[k++];
				if (k >= password.length()) k = 0;

				f_out.write((char*)&b, sizeof(b));
			}

			f_in.close();
			f_out.close();

			MessageBox::Show("Готово!");
		}
	};
}