// the method that edits a book, this method prompts
// the user for a specific value to edit, and it allows
// them to enter in a new value. this includes error handling
// as well as updating and re-reading the same original Books.TXT file.
public static Books[] EditBook()
{
BooksFile booksFile = new BooksFile("books.txt");
Books[] myBooks = booksFile.GetAllBooks();
BooksReports booksReports = new BooksReports(myBooks);
BooksUtility booksUtility = new BooksUtility(myBooks);
string isbnInput = "";
string titleInput = "";
string authorInput = "";
string genreInput = "";
string runTimeInput = "";
string continueInput = "";
string editInput = "";
string copiesInput = "";
double isbnDoubleInput = 0;
int searchIndex = 0;
int intTest = 0;
Console.WriteLine();
booksReports.PrintAllBooks();
Console.WriteLine();
Console.WriteLine("Select an ISBN to Edit:");
Console.WriteLine("'Cancel' to Cancel");
do
{
Console.Write("-- ");
isbnInput = Console.ReadLine();
if (isbnInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
else if (isbnInput.Length > 10)
{
Console.WriteLine($"Error: {isbnInput} is an Invalid ISBN, Try Again");
}
else if (isbnInput.Length < 10)
{
Console.WriteLine($"Error: {isbnInput} is an Invalid ISBN, Try Again");
}
else if (isbnInput.Length == 10)
{
isbnDoubleInput = Convert.ToDouble(isbnInput);
searchIndex = booksUtility.SequentialSearch(isbnDoubleInput);
if (searchIndex == -1)
{
Console.WriteLine("Error: Book does not exist");
}
else
{
Console.Clear();
}
}
} while (isbnInput.ToUpper() != "CANCEL" && isbnInput.Length != 10);
string isbnValue = myBooks[searchIndex].GetIsbn().ToString();
string titleValue = myBooks[searchIndex].GetTitle().ToString();
string authorValue = myBooks[searchIndex].GetAuthor().ToString();
string genreValue = myBooks[searchIndex].GetGenre().ToString();
string runTimeValue = myBooks[searchIndex].GetRuntime().ToString();
string copiesValue = myBooks[searchIndex].GetCopies().ToString();
Console.WriteLine("Which value would you like to edit?");
Console.WriteLine();
Console.WriteLine($"ISBN : {isbnValue}");
Console.WriteLine($"Title : {titleValue}");
Console.WriteLine($"Author : {authorValue}");
Console.WriteLine($"Genre : {genreValue}");
Console.WriteLine($"Runtime : {runTimeValue}");
Console.WriteLine($"Copies : {copiesValue}");
Console.WriteLine();
Console.WriteLine("'Cancel' to Cancel");
Console.WriteLine("Enter either the category or specific value:");
do
{
Console.Write("-- ");
editInput = Console.ReadLine();
if (editInput.ToUpper() == "CANCEL")
{
// return myBooks;
}
else if (editInput.ToUpper() != "CANCEL" && editInput.ToUpper() != "ISBN" && editInput.ToUpper() != isbnValue.ToUpper() && editInput.ToUpper() != "TITLE" && editInput.ToUpper() != titleValue.ToUpper() && editInput.ToUpper() != "AUTHOR" && editInput.ToUpper() != authorValue.ToUpper() && editInput.ToUpper() != "GENRE" && editInput.ToUpper() != genreValue.ToUpper() && editInput.ToUpper() != "RUNTIME" && editInput.ToUpper() != runTimeValue.ToUpper() && editInput.ToUpper() != "COPIES" && editInput.ToUpper() != copiesValue.ToUpper())
{
Console.WriteLine($"Error: {editInput} is not a valid selection, Try Again");
}
} while (editInput.ToUpper() != "CANCEL" && editInput.ToUpper() != "ISBN" && editInput.ToUpper() != isbnValue.ToUpper() && editInput.ToUpper() != "TITLE" && editInput.ToUpper() != titleValue.ToUpper() && editInput.ToUpper() != "AUTHOR" && editInput.ToUpper() != authorValue.ToUpper() && editInput.ToUpper() != "GENRE" && editInput.ToUpper() != genreValue.ToUpper() && editInput.ToUpper() != "RUNTIME" && editInput.ToUpper() != runTimeValue.ToUpper() && editInput.ToUpper() != "COPIES" && editInput.ToUpper() != copiesValue.ToUpper());
if (editInput.ToUpper() == "ISBN" || editInput.ToUpper() == isbnValue.ToUpper())
{
Console.WriteLine($"Current ISBN: {isbnValue}");
do
{
Console.WriteLine("Enter the new ISBN:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
isbnInput = Console.ReadLine();
if (isbnInput.Length == 10)
{
break;
}
else if (isbnInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
// ISBN Error Handling messages
if (isbnInput.Length != 10)
{
if (!int.TryParse(isbnInput, out intTest))
{
Console.Clear();
Console.WriteLine($"Error: '{isbnInput}' is not a number, Try Again.");
}
else if (isbnInput.Length < 10)
{
Console.Clear();
Console.WriteLine($"Error: '{isbnInput}' is less than 10 digits, Try Again.");
}
else if (isbnInput.Length > 10)
{
Console.Clear();
Console.WriteLine($"Error: '{isbnInput}' is more than 10 digits, Try Again.");
}
}
} while (isbnInput.Length != 10 || isbnInput.ToUpper() != "CANCEL");
Console.Clear();
Console.WriteLine($"Old ISBN: {isbnValue}");
Console.WriteLine($"New ISBN: {isbnInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetIsbn(Convert.ToDouble(isbnInput));
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM");
}
else if (editInput.ToUpper() == "TITLE" || editInput.ToUpper() == titleValue.ToUpper())
{
Console.WriteLine($"Current Title: {titleValue}");
Console.WriteLine("Enter the new Title:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
titleInput = Console.ReadLine();
if (titleInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
Console.Clear();
Console.WriteLine($"Old Title: {titleValue}");
Console.WriteLine($"New Title: {titleInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetTitle(titleInput);
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM");
}
else if (editInput.ToUpper() == "AUTHOR" || editInput.ToUpper() == authorValue.ToUpper())
{
Console.WriteLine($"Current Author: {authorValue}");
Console.WriteLine("Enter the new Author:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
authorInput = Console.ReadLine();
if (authorInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
Console.Clear();
Console.WriteLine($"Old Author: {authorValue}");
Console.WriteLine($"New Author: {authorInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetAuthor(authorInput);
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM");
}
else if (editInput.ToUpper() == "GENRE" || editInput.ToUpper() == genreValue.ToUpper())
{
Console.WriteLine($"Current Genre: {genreValue}");
Console.WriteLine("Enter the new Genre:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
genreInput = Console.ReadLine();
if (genreInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
Console.Clear();
Console.WriteLine($"Old Genre: {genreValue}");
Console.WriteLine($"New Genre: {genreInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetGenre(genreInput);
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM");
}
else if (editInput.ToUpper() == "RUNTIME" || editInput.ToUpper() == runTimeValue.ToUpper())
{
Console.WriteLine($"Current Runtime: {runTimeValue}");
Console.WriteLine("Enter the new Runtime:");
Console.WriteLine("'Cancel' to Cancel");
do
{
Console.Write("-- ");
runTimeInput = Console.ReadLine();
if (genreInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
else if (!int.TryParse(runTimeInput, out intTest))
{
Console.WriteLine($"Error: {runTimeInput} is not a number, Try Again");
}
} while (runTimeInput != "CANCEL" && (!int.TryParse(runTimeInput, out intTest)));
Console.Clear();
Console.WriteLine($"Old Runtime: {runTimeValue}");
Console.WriteLine($"New Runtime: {runTimeInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetRuntime(Convert.ToDouble(runTimeInput));
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM"); Console.WriteLine($"Current Genre: {genreValue}");
}
else if (editInput.ToUpper() == "COPIES" || editInput.ToUpper() == copiesValue.ToUpper())
{
Console.WriteLine($"Current Copies: {copiesValue}");
Console.WriteLine("Enter the new amount of Copies:");
Console.WriteLine("'Cancel' to Cancel");
do
{
Console.Write("-- ");
copiesInput = Console.ReadLine();
if (copiesInput.ToUpper() == "CANCEL")
{
return(myBooks);
}
else if (!int.TryParse(copiesInput, out intTest))
{
Console.WriteLine($"Error: {copiesInput} is not a number, Try Again");
}
} while (copiesInput.ToUpper() != "CANCEL" && (!int.TryParse(copiesInput, out intTest)));
Console.Clear();
Console.WriteLine($"Old Copies: {copiesValue}");
Console.WriteLine($"New Copies: {copiesInput}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
continueInput = Console.ReadLine();
switch (continueInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetCopies(Convert.ToDouble(copiesInput));
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
myBooks = booksFile.GetAllBooks();
Console.WriteLine();
Console.WriteLine("Book has been edited, new value is:");
Console.WriteLine(myBooks[searchIndex].ToString());
return(myBooks);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (continueInput.ToUpper() != "CANCEL" && continueInput.ToUpper() != "CONFIRM");
}
return(myBooks);
}
// method to rent the book, returns myTransactions value
// this method recalls every object in itself multiple times
// which I have actually learned not to necessarily do
public Transactions[] RentBook()
{
TransactionsFile transactionsFile = new TransactionsFile("transactions.txt");
Transactions[] myTransactions = transactionsFile.GetAllTransactions();
TransactionsReports transactionsReports = new TransactionsReports(myTransactions);
TransactionsUtility transactionsUtility = new TransactionsUtility(myTransactions);
BooksFile booksFile = new BooksFile("books.txt");
Books[] myBooks = booksFile.GetAllBooks();
BooksReports booksReports = new BooksReports(myBooks);
BooksUtility booksUtility = new BooksUtility(myBooks);
string customerNameInput = "";
string customerEmailInput = "";
string isbnInput = "";
string confirmInput = "";
string defaultReturnDate = "0/0/0000";
double isbnDoubleInput = 0;
int searchIndex = 0;
int transactionLength = File.ReadAllLines("transactions.txt").Length;
double rentalId = transactionLength + 1;
DateTime currentDate = DateTime.Today;
Console.WriteLine();
booksReports.PrintAllBooks();
Console.WriteLine();
Console.WriteLine("Select an ISBN to Rent:");
Console.WriteLine("'Cancel' to Cancel");
do
{
Console.Write("-- ");
isbnInput = Console.ReadLine();
if (isbnInput.ToUpper() == "CANCEL")
{
return(myTransactions);
}
else if (isbnInput.Length > 10)
{
Console.WriteLine($"Error: {isbnInput} is an Invalid ISBN, Try Again");
}
else if (isbnInput.Length < 10)
{
Console.WriteLine($"Error: {isbnInput} is an Invalid ISBN, Try Again");
}
else if (isbnInput.Length == 10)
{
isbnDoubleInput = Convert.ToDouble(isbnInput);
searchIndex = booksUtility.SequentialSearch(isbnDoubleInput);
if (searchIndex == -1)
{
Console.WriteLine("Error: Book does not exist");
}
else
{
Console.Clear();
}
}
if (myBooks[searchIndex].GetCopies() == 0)
{
Console.WriteLine("Error: There are no copies left");
return(myTransactions);
}
Console.WriteLine("Checking out:");
Console.WriteLine($"Rental ID: {rentalId:0000}");
Console.WriteLine($"Title: {myBooks[searchIndex].GetTitle()}");
Console.WriteLine();
Console.WriteLine("Enter Customer Email:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
customerEmailInput = Console.ReadLine();
if (customerEmailInput.ToUpper() == "CANCEL")
{
return(myTransactions);
}
string[] lines = File.ReadAllLines("transactions.txt");
if (lines.Length != 0)
{
foreach (string line in lines)
{
string[] transactionInfo = line.Split('#');
if (transactionInfo[3] == customerEmailInput)
{
if (transactionInfo[1] == isbnInput)
{
Console.WriteLine();
Console.WriteLine("Error: You already have a copy of this book");
return(myTransactions);
}
}
}
}
} while (isbnInput.ToUpper() != "CANCEL" && isbnInput.Length != 10);
Console.WriteLine("Enter Customer Name:");
Console.WriteLine("'Cancel' to Cancel");
Console.Write("-- ");
customerNameInput = Console.ReadLine();
if (customerNameInput.ToUpper() == "CANCEL")
{
return(myTransactions);
}
Console.Clear();
Console.WriteLine("Checking out:");
Console.WriteLine($"Rental ID: {rentalId:0000}");
Console.WriteLine($"Title: {myBooks[searchIndex].GetTitle()}");
Console.WriteLine($"Customer Name: {customerNameInput}");
Console.WriteLine($"Customer Email: {customerEmailInput}");
Console.WriteLine($"Rental Date: {currentDate:d}");
Console.WriteLine($"Return Date: {defaultReturnDate}");
Console.WriteLine();
Console.WriteLine("'Confirm' to Change");
Console.WriteLine("'Cancel' to Cancel Change");
Console.WriteLine("Enter your selection:");
do
{
Console.Write("-- ");
confirmInput = Console.ReadLine();
switch (confirmInput.ToUpper())
{
case "CONFIRM":
int bookFileLength = File.ReadAllLines("books.txt").Length;
string[] tempBooks = File.ReadAllLines("books.txt");
myBooks[searchIndex].SetCopies(Convert.ToDouble(myBooks[searchIndex].GetCopies()) - 1);
tempBooks[searchIndex] = ($"{myBooks[searchIndex].GetIsbn()}#{myBooks[searchIndex].GetTitle()}#{myBooks[searchIndex].GetAuthor()}#{myBooks[searchIndex].GetGenre()}#{myBooks[searchIndex].GetRuntime()}#{myBooks[searchIndex].GetCopies()}");
File.Create("books.txt").Close();
using (StreamWriter sw = File.AppendText("books.txt"))
{
for (int i = 0; i != bookFileLength; i++)
{
sw.WriteLine(tempBooks[i]);
}
}
using (StreamWriter sw = File.AppendText("transactions.txt"))
{
sw.WriteLine($"{rentalId:0000}#{isbnInput}#{customerNameInput}#{customerEmailInput}#{currentDate:d}#{defaultReturnDate}");
}
Console.WriteLine();
Console.WriteLine("Transaction has been added.");
myBooks = booksFile.GetAllBooks();
myTransactions = transactionsFile.GetAllTransactions();
return(myTransactions);
case "CANCEL":
break;
default:
Console.WriteLine("Error: Invalid Selection, Try Again");
break;
}
} while (confirmInput.ToUpper() != "CANCEL" && confirmInput.ToUpper() != "CONFIRM");
return(myTransactions);
}