// Program: File_Buffer
// Start: 2/15/03 Release:
// Version 1.1
//
//        Program opens files using the filebuf parameters in the fstream.h
// C++ library.  Opens all files as "share none" blocking access from other users.
// Manages files with a linked list.

#include <fstream.h>
#include <stdlib.h>
//#include <time.h>    Associate file locking with current time
//#include <conio.h>
#include <apstring.h>

#include <format.h>

short int Menu();
apstring DirPrompt(apstring item, apstring Prompt);

#include "cLock_File.h"
#include "cLock_Manager.h"

int main()
{
	short int choice;
	apstring temp = "0";

	cLock_Manager List;  // Declares linked list to manage file locks

	temp[0] = char(8);
	List.SET_ADMIN_PASSWORD(temp);

Start:
	CLS();
	choice = Menu();
	CLS();

	if(choice == 1)
	{
		cin.ignore();
		List.Lock(DirPrompt("file", "lock"));
	}
	else if(choice == 2)
	{
		List.DisplayAll();
		cin >> choice;

		CLS();
		List.UnLock(choice);
		choice = 2;
	}
	else if(choice == 3)
	{
		cin.ignore();
		List.LoadList(DirPrompt("list", "load"));
	}
	else if(choice == 4)
	{
		cin.ignore();
		if(List.UnLockAll())
		{List.Reset();}
		else
		{
			cout << "!!!Invalid password!!!" << endl;
			system("pause");
		}
	}

	if(choice != 0)
	{goto Start;}
	else
	{
		cin.ignore();
		cout << "Enter the administrative password: "; getline(cin, temp);

		if((temp != List.Get_OVERRIDE()) && (temp != List.Get_ADMIN_PASSWORD()))
		{
			cout << "!!!INVALID PASSWORD!!!" << endl;
			system("pause");
			goto Start;
		}
	}

	List.Reset();     // Deletes all nodes and returns memory to heap

	return 0;
}

short int Menu()
{
	short int choice;

	cout << "What would you like to do?"        << endl;
	skip(1);
	cout << "0 : Exit"                          << endl;
	cout << "1 : Lock a file"                   << endl;
	cout << "2 : Unlock a file"                 << endl;
//	cout << "3 : Change a password(disabled)"   << endl; // Administrative Password set a subset of this option
	cout << "3 : Load a list"                   << endl;
	cout << "4 : Unlock all files"              << endl;
	cout << endl;
	cin >> choice;

	if(choice > 0 && choice < 5)
	{return choice;}
	else
	{return 0;}
}

apstring DirPrompt(apstring item, apstring Prompt)
{
	cout << "Enter the path of the " << item << " that you want to " << Prompt << "." << endl;
	cout << endl;
	getline(cin, Prompt);

	return Prompt;
}