/// <inheritdoc />
public AddressBookEntry RemoveAddress(string label)
{
AddressBookEntry item = this.addressBook.Addresses.SingleOrDefault(i => i.Label == label);
if (item == null)
{
return(null);
}
this.addressBook.Addresses.Remove(item);
this.fileStorage.SaveToFile(this.addressBook, AddressBookFileName);
return(item);
}
/// <inheritdoc />
public AddressBookEntry AddNewAddress(string label, string address)
{
if (this.addressBook.Addresses.Any(i => i.Label == label || i.Address == address))
{
throw new AddressBookException($"An entry with label '{label}' or address '{address}' already exist in the address book.");
}
AddressBookEntry newEntry = new AddressBookEntry {
Label = label, Address = address
};
this.addressBook.Addresses.Add(newEntry);
this.fileStorage.SaveToFile(this.addressBook, AddressBookFileName);
return(newEntry);
}