#include<iostream>
#include<string>
#include<iomanip>
#include<fstream>
#include<Windows.h>
#include<conio.h>
#include<stdlib.h>
using namespace std;
#include "Header.h"

void login();
void menuscreen();
int target2;

void main()
{
	login();
	menuscreen();
}
void menuscreen()
{
	Shop mylist;
	string target, brand, modelname, size, quantity;
	int location, choice, bil, target1;
	char backOption, choice1;
		cout << "========================\n\n";
		cout << "   *******" << "MENU" << "*******" << endl << endl;
		cout << "========================\n1. ADD ITEM\n2. DELETE ITEM\n3. DISPLAY RECORD\n4. SORT BY BRAND\n5. SEARCH BY MODEL\n6. EXIT\n========================\n\n";
		cout << endl;
		ifstream infile;
		infile.open("info.txt");
		while (infile >> bil >> brand >> modelname >> size >> quantity)
		{
			if (mylist.NumberOfItem() == 0)
				mylist.AddToFrontInput(bil, brand, modelname, size, quantity);
			else
				mylist.AddToMiddleInput(bil, brand, modelname, size, quantity);
		}
		infile.close();
		do
		{
			cout << "User option >> ";
			cin >> choice;
			fflush(stdin);
			cin.ignore();
			switch (choice)
			{
			case 1:
				system("cls");
				cout << " \t \t \t__________________________ \n\n ";
				cout << " \t \t \t\t ADD ITEM \n \n ";
				cout << " \t \t \t__________________________ \n\n ";
				if (mylist.NumberOfItem() == 0)
				{
					mylist.AddToFront();
					cout << "\nContinue Add Item? (Y\N) : ";
					cin >> choice1;
					cin.ignore();
					if (choice1 == 'Y' || choice1 == 'y')
					{
						do
						{
							mylist.AddToMiddle();
							cout << "\nContinue Add Item? (Y\N) : ";
							cin >> choice1;
							cin.ignore();
						} while (choice1 == 'Y' || choice1 == 'y');
					}
					else
						break;
				}
				else
					if (mylist.Traverse() == true)
					{
						do
						{
							mylist.AddToMiddle();
							cout << "\nContinue Add Item? (Y\\N) : ";
							cin >> choice1;
							cin.ignore();
						} while (choice1 == 'Y' || choice1 == 'y');
					}
				cout << "\nSUCCESSFULLY ADDED!\n";
				system("pause");
				system("cls");
				menuscreen();
				break;

			case 2:
				do
				{
					system("cls");
					cout << "-----DELETE ITEM-----\n\n";
					cout << left << setw(8) << "-----" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
					cout << left << setw(8) << " No. " << left << setw(20) << "   Brand   " << left << setw(20) << "Model Name " << left << setw(20) << " Size " << left << setw(20) << "  Quantity  " << endl;
					cout << left << setw(8) << "-----" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
					mylist.displayData();
					cout << "\nNo. : ";
					cin >> target1;
					if (mylist.searchDelete(target1, location) == true)
					{
						if (location == 0)
						{
							mylist.DeleteFront();
						}
						else
						{
							mylist.DeleteMiddle();
						}
						cout << "\nITEM DELETED!\n";
					}
					cout << "\nContinue Delete Item? (Y\\N) : ";
					cin >> choice1;
					cin.ignore();
				} while (choice1 == 'Y' || choice1 == 'y');
				system("pause");
				system("cls");
				menuscreen();
				break;

			case 3:
				system("cls");
				cout << "-----DISPLAY BY NAME-----\n\n";
				cout << left << setw(8) << "-----" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
				cout << left << setw(8) << " No. " << left << setw(20) << "   Brand   " << left << setw(20) << "Model Name " << left << setw(20) << " Size " << left << setw(20) << "  Quantity  " << endl;
				cout << left << setw(8) << "-----" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
				mylist.displayData();
				cout << endl << "Total : " << mylist.NumberOfItem() << endl;
				system("pause");
				system("cls");
				menuscreen();
				break;

			case 4:
				do
				{
					system("cls");
					cout << "-----SORT BY BRAND-----\n\n";
					cout << "ENTER BRAND : ";
					getline(cin, target);
					mylist.sortQuantity(target);
					cout << "Continue Sort By Brand? (Y\\N) : ";
					cin >> choice1;
					cin.ignore();
				} while (choice1 == 'Y' || choice1 == 'y');

				system("cls");
				menuscreen();
				break;

			case 5:
				system("cls");
				cout << "-----SEARCH BY MODEL-----" << "\n\nModel Name : ";
				getline(cin, target);
				cout << endl;
				cout << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
				cout << left << setw(20) << "   Brand   " << left << setw(20) << "Model Name" << left << setw(20) << " Size " << left << setw(20) << "  Quantity  " << endl;
				cout << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;

				if (mylist.searchModel(target, location) == true)
				{
					mylist.printSearch(location);

				}
				else
				{
					cout << "Item is not found\n";
					cout << endl;
				}
				system("pause");
				system("cls");
				menuscreen();
				break;
			case 6:
				mylist.displayOutput();
				cout << "\n====EXITING PROGRAMME====\n";
				exit(EXIT_FAILURE);
				break;
			default:
				cout << "Invalid input,please re-enter!!!\n\n";
			}
		} while (choice < 1 || choice>6);
}

void login()
{
	string username;
	string password;
	username = "ADMIN";
	char ch;
	string input;
karate:
	system("cls");
	cout << "\n\t\t\t\t\t=====DOVER KICKS MALAYSIA=====\n\n";
	cout << "\n\t\t\t\t\t=====ADMINISTRATOR LOGIN=====\n\n";
	cout << "\n\t\t\t\t\t=====Enter 00 to Exit=====\n\n";
	cout << "\n\n\n\tUSERNAME >> ";
	cin >> input;

	if (input == username)
	{
		cout << "\n";

		cout << "\tPASSWORD >> ";
		ch = _getch();
		while (ch != 13)
		{
			password.push_back(ch);
			cout << '*';
			ch = _getch();
		}
		if (password == "1234")
		{
			cout << "\n\n\n\t\t\t\t\t  ACCESS GRANTED !!!\n ";
			for (int i = 0; i < 6; i++)
			{
				cout << " ";
				Sleep(250);
			}
			Sleep(500);
			system("cls");
			return;
		}
		else
		cout << "\n\n\t\tACCESS DENIED !!! INVALID PASSWORD !!! \n\n";
		system("pause");
		goto karate;
	}
	else if (input == "00")
	{
		exit(EXIT_FAILURE);
	}
	else if (input != username)
	{
		cout << "\n\n\t\tACCESS DENIED !!! INVALID PASSWORD !!! \n\n";

	}
	system("pause");
	goto karate;
}

----------------------------------------------------------------------------------------------------

#ifndef HEADER_H
#define HEADER_H
#include<fstream>
const int sizez = 10;

ifstream infile;
ofstream outfile;

class Shop
{
private:
	struct Shoe
	{
		int bil;
		string brand;
		string modelname;
		string size;
		string quantity;
	};
	class Node
	{
	public:
		Shoe ShoeData;
		Node*link;
	};
	Node*pHead;
	Node*pCurr;
	Node*pPrev;
	Node*pTail;
	int numItem;

public:
	Shop();
	~Shop();
	void AddToFront();
	void AddToMiddle();
	void DeleteFront();
	void DeleteMiddle();
	int NumberOfItem();
	bool searchDelete(int, int &);
	bool searchModel(string, int &);
	void sortQuantity(string target);
	void printSearch(int target);
	void displayData();
	bool Traverse();
	void displayOutput();
	void AddToFrontInput(int, string, string, string, string);
	void AddToMiddleInput(int, string, string, string, string);
	int array[sizez];
	void bubblesort(string , int);
	bool Traverse(string target, int &loc);
};
#endif






Shop::Shop()
{
	numItem = 0;
	pHead = 0;
}

Shop::~Shop() {}

void Shop::AddToFront()
{
	string item1, item2, item3, item4;
	int item5;
	Node*pNew = new Node;
	cout << "\nEnter Brand     : ";
	fflush(stdin);
	getline(cin, item1);
	cout << "Enter Model Name        : ";
	getline(cin, item2);
	cout << "Enter Size           : ";
	getline(cin, item3);
	cout << "Enter Quantity     : ";
	getline(cin, item4);
	numItem++;
	item5 = numItem;
	pNew->ShoeData.brand = item1;
	pNew->ShoeData.modelname = item2;
	pNew->ShoeData.size = item3;
	pNew->ShoeData.quantity = item4;
	pNew->ShoeData.bil = item5;
	pNew->link = pHead;
	pHead = pNew;
}

void Shop::AddToMiddle()
{
	string item1, item2, item3, item4;
	int item5;
	Node*pNew = new Node;
	cout << "\nEnter Brand Name       : ";
	getline(cin, item1);
	cout << "Enter Model Name : ";
	getline(cin, item2);
	cout << "Enter Size  : ";
	getline(cin, item3);
	cout << "Enter Quantity    : ";
	getline(cin, item4);
	if (numItem == 1)
		pCurr = pHead;
	numItem++;
	item5 = numItem;
	pNew->ShoeData.brand = item1;
	pNew->ShoeData.modelname = item2;
	pNew->ShoeData.size = item3;
	pNew->ShoeData.quantity = item4;
	pNew->ShoeData.bil = item5;
	pNew->link = pCurr->link;
	pCurr->link = pNew;
	pCurr = pNew;
}

void Shop::DeleteFront()
{
	pHead = pHead->link;
	pCurr = pHead;
	numItem--;
	for (int i = 1; i <= numItem; i++)
	{
		pCurr->ShoeData.bil = i;
		pPrev = pCurr;
		pCurr = pCurr->link;
	}

}

void Shop::DeleteMiddle()
{
	pPrev->link = pCurr->link;
	numItem--;
	pCurr = pHead;
	for (int i = 1; i <= numItem; i++)
	{
		pCurr->ShoeData.bil = i;
		pPrev = pCurr;
		pCurr = pCurr->link;
	}
}

int Shop::NumberOfItem()
{
	return numItem;
}

bool Shop::searchDelete(int target1, int &loc)
{
	if (numItem == 0)
		cout << "NO ITEM" << endl;
	else
	{
		pCurr = pHead;
		loc = 0;
		while (pCurr->ShoeData.bil != target1 && pCurr->link != 0)
		{
			pPrev = pCurr;
			pCurr = pCurr->link;
			loc++;
		}
		if (pCurr->ShoeData.bil == target1)
			return true;
		else
			return false;
	}
}




bool Shop::Traverse(string target,int &loc)
{
	if (numItem == 0)
		cout << "There is no item in the list" << endl;
	else
	{
		pCurr = pHead;
		loc = 0;
		while (pCurr->ShoeData.modelname != target&&pCurr->link != 0)
		{
			pCurr = pCurr->link;
			loc++;
		}
		if (pCurr->ShoeData.modelname == target)
			return true;
		else
			return false;
	}
}






bool Shop::searchModel(string target, int &loc)
{
	if (numItem == 0)
		cout << "NO ITEM" << endl;
	else
	{
		pCurr = pHead;
		loc = 0;
		while (pCurr->ShoeData.modelname != target && pCurr->link != 0)
		{
			pPrev = pCurr;
			pCurr = pCurr->link;
			loc++;
		}
		if (pCurr->ShoeData.modelname == target)
			return true;
		else
			return false;
	}
}

void Shop::sortQuantity(string target)
{
	int total = 0;
	cout << endl;
	pCurr = pHead;
	cout << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
	cout << left << setw(20) << "   Brand   " << left << setw(20) << "Model Name " << left << setw(20) << " Size " << left << setw(20) << "  Quantity  " << endl;
	cout << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << left << setw(20) << "----------" << endl;
	for (int i = 0; i < numItem; i++)
	{
		if (pCurr->ShoeData.brand == target)
		{
			cout << endl;
			cout << left << setw(20) << pCurr->ShoeData.brand;
			cout << left << setw(20) << pCurr->ShoeData.modelname;
			cout << left << setw(20) << pCurr->ShoeData.size;
			cout << left << setw(20) << pCurr->ShoeData.quantity;
			total++;
		}
		else;
		pPrev = pCurr;
		pCurr = pCurr->link;
	}
	cout << "\n\nTotal : " << total << endl << endl;
}
void Shop::printSearch(int target)
{
	pCurr = pHead;
	int loc = 0;
	while (loc != target && pCurr->link != 0)
	{
		pPrev = pCurr;
		pCurr = pCurr->link;
		loc++;
	}
	cout << left << setw(20) << pCurr->ShoeData.brand;
	cout << left << setw(20) << pCurr->ShoeData.modelname;
	cout << left << setw(20) << pCurr->ShoeData.size;
	cout << left << setw(20) << pCurr->ShoeData.quantity;

}

void Shop::displayData()
{
	pCurr = pHead;
	while (pCurr != 0)
	{
		cout << "  " << pCurr->ShoeData.bil << "     ";
		cout << left << setw(20) << pCurr->ShoeData.brand;
		cout << left << setw(20) << pCurr->ShoeData.modelname;
		cout << left << setw(20) << pCurr->ShoeData.size;
		cout << left << setw(20) << pCurr->ShoeData.quantity;
		pCurr = pCurr->link;
		cout << endl;
	}
}

bool Shop::Traverse()
{
	pCurr = pHead;
	while (pCurr->link != NULL)
	{
		pPrev = pCurr;
		pCurr = pCurr->link;
	}
	if (pCurr->link == NULL)
		return true;
	else
		return false;
}

void Shop::displayOutput()
{
	outfile.open("info.txt");
	pCurr = pHead;
	while (pCurr != 0)
	{
		outfile << "  " << pCurr->ShoeData.bil << "     ";
		outfile << left << setw(20) << pCurr->ShoeData.brand;
		outfile << left << setw(20) << pCurr->ShoeData.modelname;
		outfile << left << setw(20) << pCurr->ShoeData.size;
		outfile << left << setw(20) << pCurr->ShoeData.quantity;
		pCurr = pCurr->link;
		outfile << endl;
	}
	outfile.close();
}

void Shop::AddToFrontInput(int item5, string item1, string item2, string item3, string item4)
{
	Node*pNew = new Node;
	numItem++;
	item5 = numItem;
	pNew->ShoeData.brand = item1;
	pNew->ShoeData.modelname = item2;
	pNew->ShoeData.size = item3;
	pNew->ShoeData.quantity = item4;
	pNew->ShoeData.bil = item5;
	pNew->link = pHead;
	pHead = pNew;
}

void Shop::AddToMiddleInput(int item5, string item1, string item2, string item3, string item4)
{
	Node*pNew = new Node;
	if (numItem == 1)
		pCurr = pHead;
	numItem++;
	item5 = numItem;
	pNew->ShoeData.brand = item1;
	pNew->ShoeData.modelname = item2;
	pNew->ShoeData.size = item3;
	pNew->ShoeData.quantity = item4;
	pNew->ShoeData.bil = item5;
	pNew->link = pCurr->link;
	pCurr->link = pNew;
	pCurr = pNew;
}