/// <summary>
/// Lists the entries in Phone Book in given range.
/// If out of range exception it throwed.
/// </summary>
/// <param name="startRange">The start range.</param>
/// <param name="endRange">The end range.</param>
/// <returns>Returns orderd list of Phone Book Entries</returns>
public PhoneBookContactOutput[] ListEntries(int startRange, int endRange)
{
if (startRange < 0 || startRange + endRange > this.PhoneBookEntries.Count)
{
throw new ArgumentOutOfRangeException("Invalid start index or count.");
}
this.PhoneBookEntries.Sort();
PhoneBookContactOutput[] ent = new PhoneBookContactOutput[endRange];
for (int i = startRange; i <= startRange + endRange - 1; i++)
{
PhoneBookContactOutput entry = this.PhoneBookEntries[i];
ent[i - startRange] = entry;
}
return(ent);
}
/// <summary>
/// Adds contact to Phone Book.
/// Method checks if there is allready existing contact in PhoneBookEntries.
/// If contact name exists only its phone numbers are added.
/// </summary>
/// <param name="contactName">The contact name</param>
/// <param name="contactNumbers">The numbers of contact</param>
/// <returns>Returns bool. True is returned if contact is added to Phone Book</returns>
public bool AddPhone(string contactName, IEnumerable <string> contactNumbers)
{
var old = from e in this.PhoneBookEntries where e.Name.ToLowerInvariant() == contactName.ToLowerInvariant() select e;
bool isPhoneAdded = false;
if (old.Count() == 0)
{
PhoneBookContactOutput obj = new PhoneBookContactOutput();
obj.Name = contactName;
obj.contactPhones = new SortedSet <string>();
foreach (var phone in contactNumbers)
{
obj.contactPhones.Add(phone);
}
this.PhoneBookEntries.Add(obj);
isPhoneAdded = true;
}
else if (old.Count() == 1)
{
PhoneBookContactOutput obj2 = old.First();
foreach (var phone in contactNumbers)
{
obj2.contactPhones.Add(phone);
}
isPhoneAdded = false;
}
else
{
throw new DuplicateWaitObjectException("Duplicated name in the phonebook found: " + contactName);
}
return(isPhoneAdded);
}