begin implementing episodes

server/Persistence/Repositories/EpisodeRepository.cs

@@ -0,0 +1,36 @@
+using MongoDB.Driver;
+using MongoDB.Driver.Linq;
+using server.Models;
+
+namespace server.Persistence.Repositories
+{
+    public class EpisodeRepository : IEpisodeRepository
+    {
+        private readonly IDbContext _context;
+
+        public EpisodeRepository(IDbContext context)
+        {
+            _context = context;
+        }
+
+        public async Task<List<Episode>> GetEpisodesAsync(EpisodeFilter? filter)
+        {
+            try
+            {
+                var query = _context.Episodes.AsQueryable();
+
+                if (filter?.Season != null)
+                {
+                    query = query.Where(episode => episode.Season == filter.Season);
+                }
+
+                return await query.ToListAsync();
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+                throw;
+            }
+        }
+    }
+}