/// <summary>
/// Returns true if the repository containsthe provided <see cref="Fav"/>
/// </summary>
/// <param name="target"><see cref="Fav"/> to find ; cannot be null</param>
/// <exception cref="ArgumentNullException"> when the parameter is null</exception>
/// <returns>true if the repository a matching <see cref="Fav"/>, false otherwise</returns>
public bool Contains(Fav target)
{
if (target == null)
{
throw new ArgumentNullException();
}
return(this.favs.Where(fav => fav.Name == target.Name && fav.Uri.AbsoluteUri == target.Uri.AbsoluteUri).Any());
}
/// <summary>
/// Return a <see cref="Fav"/> matching the provided one, or null if no record was found
/// </summary>
/// <param name="target"><see cref="Fav"/> to find ; cannot be null</param>
/// <exception cref="ArgumentNullException"> when the parameter is null</exception>
/// <returns>Matching <see cref="Fav"/> or null</returns>
public Fav Find(Fav target)
{
if (target == null)
{
throw new ArgumentNullException();
}
return(this.Contains(target) ? this.favs.Where(fav => fav.Name == target.Name && fav.Uri.AbsoluteUri == target.Uri.AbsoluteUri).Single() : null);
}
/// <summary>
/// Adds a new <see cref="Fav"/> to the favorites repository
/// Throws a <see cref="FavAlreadyExistsException"/> if the provided <see cref="Fav"/> already exists in the respository
/// </summary>
/// <exception cref="FavAlreadyExistsException"/>
/// <exception cref="ArgumentNullException"> when the parameter is null</exception>
/// <param name="fav"><see cref="Fav"/> to add to the repository ; cannot be null</param>
public void Add(Fav fav)
{
if (fav == null)
{
throw new ArgumentNullException();
}
if (this.Contains(fav))
{
throw new FavAlreadyExistsException();
}
this.favs.Add(fav);
}
/// <summary>
/// Removes a <see cref="Fav"/> from the repository
/// Throws a <see cref="FavDoesntExistException"/> if the provided <see cref="Fav"/> doesn't exist in the repository
/// </summary>
/// <exception cref="FavDoesntExistException"/>
/// <param name="fav"><see cref="Fav"/> to remove ; cannot be null</param>
/// <exception cref="ArgumentNullException"> when the parameter is null</exception>
public void Remove(Fav fav)
{
if (fav == null)
{
throw new ArgumentNullException();
}
if (!this.Contains(fav))
{
throw new FavDoesntExistException();
}
this.favs.Remove(fav);
}
