public async Task SaveManga(IList<JsonManga> mangas)
{
if (mangas == null)
throw new ArgumentNullException("mangas");
_logger.Trace("Saving " + mangas.Count() + " mangas to database...");
using (MangaEdenContext context = new MangaEdenContext())
{
List<JsonManga> existing = await context.Mangas.ToListAsync();
context.Mangas.AddRange(mangas.Except(existing, new JsonMangaComparer()));
await context.SaveChangesAsync();
_logger.Trace("Saved.");
}
}
public async Task<IList<JsonManga>> LoadMangas()
{
using (MangaEdenContext context = new MangaEdenContext())
{
_logger.Trace("Loading mangas from database...");
return await context.Mangas.OrderBy(x => x.Alias).ToListAsync();
}
}
public async Task DeleteMangas(IList<JsonManga> mangas)
{
if (mangas == null)
throw new ArgumentNullException("mangas");
_logger.Trace("Removing " + mangas.Count() + " mangas from database...");
using (MangaEdenContext context = new MangaEdenContext())
{
foreach (JsonManga manga in mangas)
{
JsonManga m = await context.Mangas.FirstOrDefaultAsync(x => x.Alias == manga.Alias);
if (m != null)
context.Mangas.Remove(m);
}
await context.SaveChangesAsync();
_logger.Trace("Saved.");
}
}