staff.cpp

#include "staff.h"

extern Library lib;
extern Log rec;
extern string account;
extern int user_index;

void Staff::AddBook() // Add new books
{
	system("cls");
	Book newbook;
	int category;
	string money, number, price, name, isbn, author, discount, disc_num, information;
	cout << "Please input the ISBN number of the book" << endl;
	cin.ignore();
	getline(cin, isbn); // Input ISBN number of this new book
	if (lib.findBook(isbn) >= 0)
	{
		cout << "This ISBN number already exist!" << endl;	// ISBN number already exist
		Sleep(1000);
		return;
	}
	cout << "Please input the name of the book:" << endl;
	getline(cin, name); // Input bookname
	cout << "Please input the author of the book:" << endl;
	getline(cin, author); // Input author 
	cout << "Please input the copy number of the book:" << endl;
	while (1) {
		cin >> number; // Input copy number 
		if (IsAllDigit(number)) break;
		cout << "Pleass input a digital number :)   Try again." << endl;
	}
	cout << "Category List:" << endl;
	cout << "1. Art" << endl;
	cout << "2. Engineering" << endl;
	cout << "3. Science" << endl;
	cout << "Please input the number of the category of the book:" << endl;
	while (1) 
	{
		cin >> category; // Input category number 
		if (category == 1 || category == 2 || category == 3) break;
		cout << "Pleass input a number between 1 and 3!" << endl;
	}
	cout << "Please input the price of the book:" << endl;
	while (1) {
		cin >> price; // Input price
		if (IsAllDigit(price)) break;
		cout << "Pleass input a digital number :)   Try again." << endl;
	}

	cout << "Please input some information of this book:" << endl;
	cin.ignore();
	getline(cin, information); // Input detail information

	cout << "Please input the cost of these books:" << endl;
	while (1) 
	{
		cin >> money; // Input the cost of those book
		if (IsAllDigit(money)) break;
		cout << "Pleass input a digital number :)   Try again." << endl;
	}
	newbook.SetName(name);
	newbook.SetIsbn(isbn);
	newbook.SetAuthor(author);
	newbook.SetNumber(stoi(number));
	newbook.SetCategory(category);
	newbook.SetPrice(stod(price));
	newbook.SetInformation(information);
	newbook.SetNumberOfSale(0);
	lib.BookArray.push_back(newbook); // Add this newbook to lib.BookArray
	cout << "Add book succsessfully!" << endl;
	Sleep(1000);
	cout << "Automatic quit in 2 seconds." << endl;
	Sleep(2000);
	rec.BookLog(account, isbn, "add", stoi(number)); // Update BookLog.txt with "add" operation
	rec.CashLog(account, isbn, "add", stod(money));	// Update CashLog.txt with "add" operation
	PrintBookArray(); // Output book information to Book.txt
	PrintCash(); // Output cash information to Cash.txt
}

void Staff::DelBook() // Delete some books
{
	system("cls");
	string isbn, temp;
	int bookPos; // book position in the library's BookArray
	cout << "Please input the ISBN number of the book that you want to delete " << endl;
	cin.ignore();
	getline(cin, isbn);	// Input ISBN number of the book that you want to delete
	bookPos = lib.findBook(isbn);
	if (bookPos >= 0)
	{
		cout << "There are " << lib.BookArray[bookPos].GetNumber() << " copies of this book, how many do you want to delete?  " << endl;
		while (1) 
		{
			cin >> temp; // Input how many books you want to delete
			if (IsAllDigit(temp)) break;
			cout << "Pleass input a digital number :)   Try again." << endl;
		}
		if (stoi(temp) > lib.BookArray[bookPos].GetNumber()) // Book number is not enough to delete
		{					
			cout << "Book number is not that much! " << endl;
			Sleep(1000);
			cout << "Automatic quit after 3 seconds." << endl;
			Sleep(3000);
		} 
		else 
		{
			lib.BookArray[bookPos].SetNumber(lib.BookArray[bookPos].GetNumber() - stoi(temp)); // Change number of this book in lib.BookArray
			cout << "Delete (" << stoi(temp) << ") of this book succsessfully!~ " << endl;
			Sleep(1000);
			cout << "Automatic quit after 3 seconds." << endl;
			Sleep(2000);
			rec.BookLog(account, isbn, "del", stoi(temp)); // Update BookLog.txt with "del" operation
			PrintBookArray(); // Output book information to Book.txt
		}
		return;
	}
	else
		cout << "Not found this book! " << endl;									// Book not exist in Book.txt
	Sleep(1000);
}

void Staff::SetBook() // Change books' information
{
	system("cls");
	int choice;
	int category;
	string number, price, name, isbn, author, discount, disc_num, information;
	cout << "Please input the ISBN number of the book that you want to change the information." << endl;
	cin.ignore();
	getline(cin, isbn); // Input ISBN number of the book that you want to change information
	int bookPos = lib.findBook(isbn);
	if (bookPos >= 0)
	{
		cout << "The book's current name is: " << lib.BookArray[bookPos].GetName() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice;
		if (choice == 1) 
		{
			cout << "Please input the new name of the book" << endl;
			cin.ignore();
			getline(cin, name); // Input new bookname
			lib.BookArray[bookPos].SetName(name);
		}
		cout << "The book's current ISBN number is: " << lib.BookArray[bookPos].GetIsbn() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice; 
		if (choice == 1) 
		{
			cout << "Please input the new ISBN number of the book" << endl;
			cin.ignore();
			getline(cin, isbn); // Input new ISBN number
			lib.BookArray[bookPos].SetIsbn(isbn);
		}
		cout << "The book's current author is: " << lib.BookArray[bookPos].GetAuthor() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice; 
		if (choice == 1) 
		{
			cout << "Please input the new author of the book" << endl;
			cin.ignore();
			getline(cin, author); // Input new author
			lib.BookArray[bookPos].SetAuthor(author);
		}
		cout << "The book's current quantity is: " << lib.BookArray[bookPos].GetNumber() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice; 
		if (choice == 1) {
			cout << "Please input the new copy number of the book" << endl;
			while (1) {
				cin >> number;
				if (IsAllDigit(number)) break;
				cout << "Pleass input a digital number :)   Try again." << endl;
			}
			lib.BookArray[bookPos].SetNumber(stoi(number));
		}
		cout << "The book's current category is: " << lib.BookArray[bookPos].GetCategoryName() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;		
		cin >> choice; 
		if (choice == 1) 
		{
			cout << "Category List:" << endl;
			cout << "1. Art" << endl;
			cout << "2. Engineering" << endl;
			cout << "3. Science" << endl;
			cout << "Please input the number of the category of the book:" << endl;
			while (1) 
			{
				cin >> category; // Input category number 
				if (category == 1 || category == 2 || category == 3) break;
				cout << "Pleass input a number between 1 and 3!" << endl;
			}
			lib.BookArray[bookPos].SetCategory(category);
		}
		cout << "The book's current price is: " << lib.BookArray[bookPos].GetPrice() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice;
		if (choice == 1) 
		{
			cout << "Please input the new price of the book" << endl;
			while (1) 
			{
				cin >> price; // Input new price
				if (IsAllDigit(price)) break;
				cout << "Pleass input a digital number :)   Try again." << endl;
			}
			lib.BookArray[bookPos].SetPrice(stod(price));
		}
		
		cout << "The book's current quantity is: " << lib.BookArray[bookPos].GetInformation() << endl;
		cout << "Do you want to change it? (input 1 for YES and 0 for NO )" << endl;
		cin >> choice; 
		if (choice == 1) 
		{
			cout << "Please input the new information of the book" << endl;
			cin.ignore();
			getline(cin, information); // Input new detail information
			lib.BookArray[bookPos].SetInformation(information);
		}
		cout << "Change book information succsessfully!~ " << endl;
		Sleep(1000);
		cout << "Automatic quit after 3 seconds." << endl;
		Sleep(2000);
		rec.BookLog(account, isbn, "set", 0); // Update BookLog.txt with "set" operation
		PrintBookArray(); // Output book information to Book.txt
		return;
	}
	else
		cout << "Not found this book! " << endl; // Book not exist in Book.txt
	Sleep(1000);
}

void Staff::ViewProfit() // Lookup net profit
{
	system("cls");
	string temp;
	cout << "Total income: " << lib.GetIncome() << endl;
	cout << "Total outcome: " << lib.GetOutcome() << endl;
	cout << "Total net profit: " << lib.GetIncome() - lib.GetOutcome() << endl;			
	cout << "Input 0 to exit" << endl;
	cin >> temp;
	while (temp != "0")
		cin >> temp;
	return;
}

void Staff::Interface() // Staff interface
{
	LoadUser();
	char command;
	int stop = 0;
	string str;
	while (1) {
		system("cls");
		cout << "Welcome " << lib.UserArray[user_index].GetUsername() << "! You are in the staff mode" << endl;
		cout << "Please choose what you want to do by input a number " << endl;
		while (1) {														// The operation list
			cout << "1 ----- Add new book" << endl;
			cout << "2 ----- Delete book" << endl;
			cout << "3 ----- Change book information" << endl;
			cout << "4 ----- List book (ALL)" << endl;
			cout << "5 ----- List book (By Category)" << endl;
			cout << "6 ----- List book (By Name)" << endl;
			cout << "7 ----- Show more book information by ISBN number" << endl;
			cout << "8 ----- Lookup net profit" << endl;
			cout << "9 ----- Change my password" << endl;
			cout << "0 ----- Exit;" << endl;
			cin >> command;
			if (command < '0' || command > '9') {												// If command doesn't match input rule
				cout << endl << "Please input number between 0 and 9!" << endl;
			} else break;
		}
		switch (command)
		{
			case '1':
				AddBook(); // Add new books
				break;
			case '2':
				DelBook(); // Delete some books
				break;
			case '3':
				SetBook(); // Change books' information
				break;	
			case '4':
				ListBookAll(); // List all book
				break;
			case '5':
				ListBookByC(); // List book by category
				break;
			case '6':
				ListBookByN(); // List book by name
				break;
			case '7':
				BookInfor(); // See more information of one book
				break;	
			case '8':
				ViewProfit(); // Lookup profit
				break;
			case '9':
				ChangePsw(); // Change password
				break;
			case '0':
				stop = 1;
				cout << "System will quit after 3 seconds " <<endl;
				Sleep(3000);
				break;
		}
		if (stop) break;
	}
}