public string PerformAction(int activityId)
{
AvailableActivities selectedActivity = _descriptionOfActivities.Keys.ElementAt(activityId);
switch (selectedActivity)
{
case AvailableActivities.AddBookToCatalog:
Console.Write("Title: ");
string title = Console.ReadLine().Trim();
Console.Write("Author: ");
string author = Console.ReadLine().Trim();
Console.Write("ISBN: ");
string isbn = Console.ReadLine().Trim();
if (string.IsNullOrWhiteSpace(title) || string.IsNullOrWhiteSpace(author) || string.IsNullOrWhiteSpace(isbn))
{
return("Incorrect data provided. Try again.");
}
try
{
if (_bookRepository.AddBookToCatalog(title, author, isbn))
{
return($"Book \"{title}\" has been added to the catalog.");
}
else
{
throw new Exception();
}
}
catch (Exception)
{
return($"[Warning] Book \"{title}\" has not been added to the catalog. Try again.");
}
case AvailableActivities.RemoveBookFromCatalog:
try
{
BookRecord bookToRemove = GetBookRecord();
if (bookToRemove != null)
{
if (_bookRepository.RemoveBookFromCatalog(bookToRemove))
{
return("Book has been removed from catalog correctly.");
}
else
{
throw new Exception();
}
}
else
{
return("[Warning] The book was not found. Try again.");
}
}
catch (Exception)
{
return($"[Warning] Book has not been removed from catalog. Try again.");
}
case AvailableActivities.SearchBookByParameter:
try
{
BookRecord bookRecord = GetBookRecord();
if (bookRecord != null)
{
string response = $"The book was found. Title: \"{bookRecord.Book.Title}\", author: {bookRecord.Book.Author}, ISBN: {bookRecord.Book.ISBN}.";
if (bookRecord.LastBorrowDate == DateTime.MinValue || bookRecord.LastBorrowDate == null)
{
response += "\n(not borrowed yet)";
}
else
{
response += $"\nBorrowed by {bookRecord.LastBorrower.Name} {bookRecord.LastBorrower.LastName} (Date: {bookRecord.LastBorrowDate.ToShortDateString()})";
}
return(response);
}
}
catch (Exception)
{ }
return("[Warning] The book was not found. Try again.");
case AvailableActivities.SearchBooksNotBorrowedForWeeks:
try
{
Console.Write("Number of weeks: ");
int weeks = int.Parse(Console.ReadLine().Trim());
try
{
List <BookRecord> booksNotBorrowed = _bookRepository.GetBooksNotBorrowedForWeeks(weeks);
foreach (BookRecord bookNotBorrowed in booksNotBorrowed)
{
Console.WriteLine($"\nBook: \"{bookNotBorrowed.Book.Title}\" {bookNotBorrowed.Book.Author} ISBN: {bookNotBorrowed.Book.ISBN}.");
if (bookNotBorrowed.LastBorrowDate == DateTime.MinValue || bookNotBorrowed.LastBorrowDate == null)
{
Console.WriteLine("(not borrowed yet)");
}
else
{
Console.WriteLine($"Borrowed by {bookNotBorrowed.LastBorrower.Name} {bookNotBorrowed.LastBorrower.LastName} (Date: {bookNotBorrowed.LastBorrowDate.ToShortDateString()})");
}
}
return($"{booksNotBorrowed.Count} records were found correctly.");
}
catch (Exception)
{
return("[Warning] There was a problem downloading the data. Try again.");
}
}
catch (Exception)
{
return("[Warning] Incorrect data provided. Try again.");
}
case AvailableActivities.BorrowBook:
try
{
Console.Write("Borrower name: ");
string borrowerName = Console.ReadLine().Trim();
Console.Write("Borrower last name: ");
string borrowerLastName = Console.ReadLine().Trim();
if (string.IsNullOrWhiteSpace(borrowerName) || string.IsNullOrWhiteSpace(borrowerLastName))
{
return("Incorrect data provided. Try again.");
}
Borrower borrower = new Borrower()
{
Name = borrowerName,
LastName = borrowerLastName
};
BookRecord bookToBorrow = GetBookRecord();
if (bookToBorrow != null)
{
bookToBorrow.LastBorrower = borrower;
bookToBorrow.LastBorrowDate = DateTime.Now;
if (_bookRepository.BorrowBook(bookToBorrow))
{
return("Book has been borrowed correctly.");
}
else
{
return("[Warning] Book has not been borrowed. Try again.");
}
}
else
{
return("[Warning] The book was not found. Try again.");
}
}
catch (Exception)
{
return($"[Warning] Book has not been borrowed. Try again.");
}
case AvailableActivities.GetCurrentBorrowers:
try
{
List <BorrowerRecord> borrowers = _bookRepository.GetCurrentBorrowers();
foreach (BorrowerRecord borrower in borrowers)
{
Console.WriteLine($"{borrower.LastBorrower.Name} {borrower.LastBorrower.LastName}: {borrower.NumberOfBooksBorrowed} books");
}
return($"{borrowers.Count} records were found correctly.");
}
catch (Exception)
{
return("[Warning] There was a problem downloading the data. Try again.");
}
}
return("[Error] Action for selected activity is not defined.");
}