public static void LineDelete(Book[] myBooks)
{
Console.WriteLine("Enter the ISBN of a book you'd like to remove from inventory (book file): ");
int choice = int.Parse(Console.ReadLine());
int indexFound = BookUtility.BinarySearch(myBooks, choice);
string path2 = "books.txt";
File.WriteAllText(path2, String.Empty);
TextWriter tW2 = new StreamWriter(path2, true);
tW2.Close();
myBooks.ToString();
using (StreamWriter sW = File.AppendText("books.txt"))
for (int i = 0; i < indexFound; i++)
{
sW.WriteLine(myBooks[i].GetISBN() + "#" + myBooks[i].GetTitle() + "#" + myBooks[i].GetAuthor() + "#" + myBooks[i].GetGenre() + "#" + myBooks[i].GetListeningTime() + "#" + myBooks[i].GetStatus() + "#" + myBooks[i].GetBookCount());
}
using (StreamWriter outFile = File.AppendText("books.txt"))
for (int j = indexFound + 1; j < GetCount(); j++)
{
outFile.WriteLine(myBooks[j].GetISBN() + "#" + myBooks[j].GetTitle() + "#" + myBooks[j].GetAuthor() + "#" + myBooks[j].GetGenre() + "#" + myBooks[j].GetListeningTime() + "#" + myBooks[j].GetStatus() + "#" + myBooks[j].GetBookCount());
}
Console.WriteLine("Updated book file:\n");
for (int i = 0; i < indexFound; i++)
{
Console.WriteLine(myBooks[i].GetISBN() + "#" + myBooks[i].GetTitle() + "#" + myBooks[i].GetAuthor() + "#" + myBooks[i].GetGenre() + "#" + myBooks[i].GetListeningTime() + "#" + myBooks[i].GetStatus() + "#" + myBooks[i].GetBookCount());
}
for (int j = indexFound + 1; j < GetCount(); j++)
{
Console.WriteLine(myBooks[j].GetISBN() + "#" + myBooks[j].GetTitle() + "#" + myBooks[j].GetAuthor() + "#" + myBooks[j].GetGenre() + "#" + myBooks[j].GetListeningTime() + "#" + myBooks[j].GetStatus() + "#" + myBooks[j].GetBookCount());
}
}
public static void BookReturn(Transactions[] myTransactions, Book[] myBooks)
{
//return book
Console.WriteLine("\nEnter the ISBN of the book to be returned: ");
//search user return ISBN in transaction file
int tempTranISBN = int.Parse(Console.ReadLine());
Console.WriteLine("\nEnter the customer's email: ");
string tempEmail = Console.ReadLine();
//nested for loop to search whole array, checking email with i and ISBN with j
for (int i = 0; i < Transactions.GetTranCount(); i++)
{
for (int j = 0; j < Transactions.GetTranCount(); j++)
{
//check if user input email equals any email on the array
if (tempEmail == myTransactions[i].GetCustomerEmail())
{
//if the email is found, check if the user ISBN equals that instance
if (tempTranISBN == myTransactions[j].GetTranISBN())
{
//if the email found and ISBN found match each other's instances, replace the return date
if (i == j)
{
//find the isbn instance in the transaction file and replace the N/A with the current date (date of return)
string newReturnDate = DateTime.Now.ToString("MM/dd/yyyy");
myTransactions[i].SetReturnDate(newReturnDate);
//take the ISBN of the book returned and search it in the book array, if found, increase the count of copies (since one was returned)
int tempISBN = myTransactions[i].GetTranISBN();
int indexFound = BookUtility.BinarySearch(myBooks, tempISBN);
int copiesAdd = myBooks[indexFound].GetBookCount() + 1;
myBooks[indexFound].SetBookCount(copiesAdd);
if (myBooks[indexFound].GetBookCount() > 0)
{
string status = "Available";
myBooks[indexFound].SetStatus(status);
}
}
}
}
}
}
//clear text file and resend updated info
string path5 = "transactions.txt";
File.WriteAllText(path5, String.Empty);
TextWriter tW5 = new StreamWriter(path5, true);
tW5.Close();
ToFile(myTransactions);
}
public static Book[] GetBookData()
{
BookFile data = new BookFile("books.txt");
Book[] myBooks = data.ReadBookData();
Console.WriteLine("Enter book ISBN (-1 to stop): \n");
int ISBN = int.Parse(Console.ReadLine());
while (ISBN != -1)
{
int indexFound = BookUtility.BinarySearch(myBooks, ISBN);
Console.WriteLine(indexFound);
if (indexFound == -1)
{
int bookCount = 1;
Console.Write("Enter the title: \n");
string title = Console.ReadLine();
Console.Write("Enter the author: \n");
string author = Console.ReadLine();
Console.Write("Enter the genre: \n");
string genre = Console.ReadLine();
Console.Write("Enter the listening time: \n");
double listeningTime = double.Parse(Console.ReadLine());
string status = "Available";
Book newBook = new Book(ISBN, title, author, genre, listeningTime, status, bookCount);
myBooks[GetCount()] = newBook;
IncrCount();
Console.Write("Enter book ISBN (- 1 to stop): \n");
ISBN = int.Parse(Console.ReadLine());
}
else
{
int copies = myBooks[indexFound].GetBookCount() + 1;
myBooks[indexFound].SetBookCount(copies);
ISBN = -1;
}
}
return(myBooks);
}
public static Transactions[] GetTransactionData(Book[] myBooks)
{
Transactions[] myTransactions = new Transactions[200];
Console.WriteLine("Enter the ISBN of the book to be marked as rented (-1 to stop):\n ");
int tranISBN = int.Parse(Console.ReadLine());
while (tranISBN != -1)
{
int indexFound = BookUtility.BinarySearch(myBooks, tranISBN);
if (myBooks[indexFound].GetBookCount() > 0)
{
int copies1 = myBooks[indexFound].GetBookCount() - 1;
myBooks[indexFound].SetBookCount(copies1);
if (myBooks[indexFound].GetBookCount() == 0)
{
string status = "Rented";
myBooks[indexFound].SetStatus(status);
}
Console.WriteLine("Enter the customer's name:\n");
string customerName = Console.ReadLine();
Console.WriteLine("Enter the customer's email:\n");
string customerEmail = Console.ReadLine();
Random rnd = new Random();
int rentID = rnd.Next();
string rentDate = DateTime.Now.ToString("M/d/yyyy");
string returnDate = "N/A";
Transactions newTransactions = new Transactions(rentID, tranISBN, customerName, customerEmail, rentDate, returnDate);
myTransactions[Transactions.GetTranCount()] = newTransactions;
Transactions.IncrTranCount();
Console.WriteLine("Enter the ISBN of the book to be rented (-1 to stop):\n ");
tranISBN = int.Parse(Console.ReadLine());
}
else
{
Console.WriteLine("\nERROR... There are no available copies of this book\n");
GetTransactionData(myBooks);
}
}
return(myTransactions);
}
public static Transactions[] GetTransactionData(Book[] myBooks)
{
//creates transaction array to input books to be marked as rented
Transactions[] myTransactions = new Transactions[200];
//show available books
Console.WriteLine("\nBooks available for rent:\n\n");
for (int i = 0; i < Book.GetCount(); i++)
{
if (myBooks[i].GetStatus() == "Available")
{
Console.WriteLine(myBooks[i]);
}
}
Console.WriteLine("\nPress enter to continue... ");
Console.ReadLine();
//get ISBN from user to identify boook being rented
Console.WriteLine("Enter the ISBN of the book to be marked as rented (-1 to stop):\n ");
int tranISBN = int.Parse(Console.ReadLine());
while (tranISBN != -1)
{
//search book array for ISBN
int indexFound = BookUtility.BinarySearch(myBooks, tranISBN);
//if the number of book copies is greater than 0 (there are still books available under this ISBN)
if (myBooks[indexFound].GetBookCount() > 0)
{
//subract one from the number of book copies (one has been rented)
int copies1 = myBooks[indexFound].GetBookCount() - 1;
myBooks[indexFound].SetBookCount(copies1);
//if the copy count now equals zero, mark the status under the book file as rented ie. there are none left
if (myBooks[indexFound].GetBookCount() == 0)
{
string status = "Rented";
myBooks[indexFound].SetStatus(status);
}
//get rest of renter's info
Console.Clear();
Console.WriteLine("\nEnter the customer's name:\n");
string customerName = Console.ReadLine();
Console.WriteLine("\nEnter the customer's email:\n");
string customerEmail = Console.ReadLine();
//rent ID randomized
Random rnd = new Random();
int rentID = rnd.Next();
//rent date set to current date, return date set to N/A (per Dr. Saifee's instruction)
string rentDate = DateTime.Now.ToString("MM/dd/yyyy");
string returnDate = "N/A";
Transactions newTransactions = new Transactions(rentID, tranISBN, customerName, customerEmail, rentDate, returnDate);
myTransactions[Transactions.GetTranCount()] = newTransactions;
Transactions.IncrTranCount();
Console.Clear();
Console.WriteLine("Enter the ISBN of the book to be rented (-1 to stop):\n ");
tranISBN = int.Parse(Console.ReadLine());
}
//if user tries to rent a book that there are no available copies of, error message is presented
else
{
Console.WriteLine("\nERROR... There are no available copies of this book\n");
GetTransactionData(myBooks);
}
Console.WriteLine("\nBooks rented. Press enter to continue");
Console.ReadLine();
}
return(myTransactions);
}
public static void Edit(Book[] myBooks)
{
// edit function
Console.WriteLine("Enter the ISBN of the book you would like to edit: ");
int tempISBN = int.Parse(Console.ReadLine());
//searching ISBN
int indexFound = BookUtility.BinarySearch(myBooks, tempISBN);
Console.WriteLine("Please enter:\n'Title' to edit the title\n'Author' to edit the author\n'Genre' to edit the genre\n'Listening Time' to edit the listening time\n'Copy Count' to chnage the number of available copies");
string answer = Console.ReadLine().ToLower();
if (answer == "title")
{
Console.WriteLine("\nEnter a new title:");
string newTitle = Console.ReadLine();
myBooks[indexFound].SetTitle(newTitle);
}
else if (answer == "author")
{
Console.WriteLine("\nEnter a new author:");
string newAuthor = Console.ReadLine();
myBooks[indexFound].SetAuthor(newAuthor);
}
else if (answer == "genre")
{
Console.WriteLine("\nEnter a new genre:");
string newGenre = Console.ReadLine();
myBooks[indexFound].SetGenre(newGenre);
}
else if (answer == "listening time")
{
Console.WriteLine("\nEnter a new listening time:");
double newLT = double.Parse(Console.ReadLine());
myBooks[indexFound].SetListeningTime(newLT);
}
else if (answer == "copy count")
{
Console.WriteLine("Enter 'add' to add a copy of the book or 'subtract' to subtract a copy");
string copy = Console.ReadLine().ToLower();
if (copy == "add")
{
int copiesAdd = myBooks[indexFound].GetBookCount() + 1;
myBooks[indexFound].SetBookCount(copiesAdd);
Console.WriteLine("\nBook count is currently: " + myBooks[indexFound].GetBookCount());
}
else if (copy == "subtract")
{
int copies = myBooks[indexFound].GetBookCount() - 1;
myBooks[indexFound].SetBookCount(copies);
Console.WriteLine("\nBook count is currently: " + myBooks[indexFound].GetBookCount());
}
}
// clear and re-send sorted and edited array (update the text file)
string path2 = "books.txt";
File.WriteAllText(path2, String.Empty);
TextWriter tW2 = new StreamWriter(path2, true);
tW2.Close();
ToFile(myBooks);
}
//Method gets books from user to be added to book file
public static Book[] GetBookData()
{
//read existing data from book file into array
BookFile data = new BookFile("books.txt");
Book[] myBooks = data.ReadBookData();
Console.WriteLine("\nEnter book ISBN (-1 to stop): \n");
int ISBN = int.Parse(Console.ReadLine());
while (ISBN != -1)
{
//binary search checks to see if the book already exists, if not, it continues to get user info on the book
int indexFound = BookUtility.BinarySearch(myBooks, ISBN);
if (indexFound == -1)
{
int bookCount = 1;
Console.Write("\nEnter the title: \n");
string title = Console.ReadLine();
Console.Write("\nEnter the author: \n");
string author = Console.ReadLine();
Console.Write("\nEnter the genre: \n");
string genre = Console.ReadLine();
Console.Write("\nEnter the listening time: \n");
double listeningTime = double.Parse(Console.ReadLine());
string status = "Available";
Book newBook = new Book(ISBN, title, author, genre, listeningTime, status, bookCount);
myBooks[GetCount()] = newBook;
IncrCount();
Console.Clear();
Console.Write("\nEnter book ISBN (- 1 to stop): \n");
ISBN = int.Parse(Console.ReadLine());
}
//if the book ISBN already exists, program will increase the number of copies by one
else
{
int copies = myBooks[indexFound].GetBookCount() + 1;
myBooks[indexFound].SetBookCount(copies);
//exits the GetBookData method
ISBN = -1;
string status = "Available";
myBooks[indexFound].SetStatus(status);
Console.Clear();
Console.WriteLine("This ISBN already exists... a copy has been added");
Console.WriteLine("\nPress enter to continue...");
Console.ReadLine();
}
}
Console.Clear();
Console.WriteLine("\nBook(s) inputed");
Console.WriteLine("\nPress enter to continue...");
Console.ReadLine();
return(myBooks);
}