// AddTagTo <albumName> <tag>
public string Execute(string[] data)
{
string albumName = data[0];
string tagName = data[1].ValidateOrTransform();
if (!AuthenticationService.IsAuthenticated())
{
throw new InvalidOperationException("Invalid credentials");
}
if (!tagService.TagExists(tagName) || !albumService.AlbumExists(albumName))
{
throw new ArgumentException("Either tag or album do not exist!");
}
User currentUser = AuthenticationService.GetCurrentUser();
List <string> owners = albumService.GetAlbumOwners(albumName);
if (!owners.Contains(currentUser.Username))
{
throw new InvalidOperationException("Invalid credentials");
}
tagService.AddTagToAlbum(albumName, tagName);
return("Tag " + tagName + " added to " + albumName + "!");
}
// AddTagTo <albumName> <tag>
public string Execute(string[] data)
{
var albumName = data[0];
var tagName = data[1];
if (!albumService.IsAlbumExists(albumName))
{
throw new ArgumentException($"Album {albumName} do not exist!");
}
if (!tagService.IsTagExisting(tagName))
{
throw new ArgumentException($"Tag {tagName} do not exist!");
}
tagService.AddTagToAlbum(tagName, albumName);
return($"Tag {tagName} added to {albumName}!");
}