/// <summary>
/// UpdateLibrary loads the updates your existing saved library by rescanning the disk for changes.
/// </summary>
/// <returns>A list of updated library files.</returns>
public async Task <IEnumerable <MovieLibraryFile> > ScanLibrary()
{
var newLibrary = new List <MovieLibraryFile>();
// Add all the existing library to the dictionary
var existing = new Dictionary <string, MovieLibraryFile>();
foreach (var movie in await LoadMoviesFromFile())
{
existing.TryAdd(movie.Path, movie);
}
// TODO: Figure out if I should try to minimize api requests by only querying for
// Loop through checking if each value exists in the library already
foreach (var path in Discover.FindMovieFiles(moviesDirectory))
{
// If the paths match we use the existing metadata if user set metadata manually
if (existing.ContainsKey(path) && existing[path].Modified)
{
existing[path].Id = newLibrary.Count();
newLibrary.Add(existing[path]);
}
else
{
// Otherwise we fetch fresh metadata for the file.
newLibrary.Add(await Discover.MatchMovie(path, newLibrary.Count(), apiUrl));
}
}
movies = newLibrary;
SaveMoviesToFile();
return(movies);
}