/// <summary>
/// Adds the FollowingMovie specified in the argument to the database.
/// Returns true iff successful.
/// Returns false if the username or movieid referenced in the FollowingMovie object
/// do not already exist in their respective database tables.
/// </summary>
/// <param name="followingMovie"></param>
/// <returns></returns>
public async Task <bool> FollowMovie(FollowingMovie followingMovie)
{
var userExists = UserExists(followingMovie.Username);
if (!userExists)
{
Console.WriteLine("RepoLogic.FollowMovie() was called for a user that doesn't exist.");
return(false);
}
var movieExists = MovieExists(followingMovie.MovieId);
if (!movieExists)
{
Console.WriteLine("RepoLogic.FollowMovie() was called for a movie that doesn't exist.");
return(false);
}
// Ensure the User is not already Following this Movie
if ((await _dbContext.FollowingMovies.Where(fm =>
fm.Username == followingMovie.Username &&
fm.MovieId == followingMovie.MovieId
).FirstOrDefaultAsync <FollowingMovie>()) != null)
{
Console.WriteLine("RepoLogic.FollowMovie() was called for a movie that the user is " +
"already following.");
return(false);
}
await _dbContext.FollowingMovies.AddAsync(followingMovie);
await _dbContext.SaveChangesAsync();
return(true);
}
public async Task RecommendedMoviesByUserIdTest()
{
MovieDTO inputMovie = TestingHelper.GetRandomMovie();
inputMovie.ImdbId = "tt4154796";
string userId = Guid.NewGuid().ToString();
List <MovieDTO> results;
// Seed the test database
using (var context = new Cinephiliacs_MovieContext(dbOptions))
{
context.Database.EnsureDeleted();
context.Database.EnsureCreated();
TestingHelper.AddMovieDTOToDatabase(context, inputMovie);
var followingMovie = new FollowingMovie();
followingMovie.ImdbId = inputMovie.ImdbId;
followingMovie.UserId = userId;
context.FollowingMovies.Add(followingMovie);
context.SaveChanges();
}
using (var context = new Cinephiliacs_MovieContext(dbOptions))
{
RepoLogic repoLogic = new RepoLogic(context);
MovieLogic movieLogic = new MovieLogic(repoLogic);
// Test RecommendedMoviesByUserId()
results = await movieLogic.RecommendedMoviesByUserId(userId);
}
Assert.True(results.Count > 0);
}
/// <summary>
/// Adds the movie specified in the argument to the user
/// specified in the argument's following movie list.
/// </summary>
/// <param name="movieId"></param>
/// <param name="userId"></param>
public void AddFollowingMovie(string movieId, string userId)
{
if (FollowingMovieExists(movieId, userId))
{
return;
}
var followingMovie = new FollowingMovie();
followingMovie.ImdbId = movieId;
followingMovie.UserId = userId;
_dbContext.FollowingMovies.Add(followingMovie);
_dbContext.SaveChanges();
}
