Crentalise all import logic

osu.Desktop/OsuGameDesktop.cs

@@ -115,21 +115,7 @@ namespace osu.Desktop
 
             if (filePaths.Any(f => Path.GetExtension(f) != firstExtension)) return;
 
-            switch (firstExtension)
+            Task.Factory.StartNew(() => Import(filePaths), TaskCreationOptions.LongRunning);
-            {
-                case ".osz":
-                    Task.Factory.StartNew(() => BeatmapManager.Import(filePaths), TaskCreationOptions.LongRunning);
-                    return;
-                case ".osr":
-                    Task.Run(() =>
-                    {
-                        var score = ScoreStore.ReadReplayFile(filePaths.First());
-                        Schedule(() => LoadScore(score));
-                    });
-                    return;
-            }
         }
-
-        private static readonly string[] allowed_extensions = { @".osz", @".osr" };
     }
 }

osu.Game/Database/ArchiveModelManager.cs

@@ -20,7 +20,7 @@ namespace osu.Game.Database
     /// </summary>
     /// <typeparam name="TModel">The model type.</typeparam>
     /// <typeparam name="TFileModel">The associated file join type.</typeparam>
-    public abstract class ArchiveModelManager<TModel, TFileModel> : ICanImportArchives
+    public abstract class ArchiveModelManager<TModel, TFileModel> : ICanAcceptFiles
         where TModel : class, IHasFiles<TFileModel>, IHasPrimaryKey, ISoftDelete
         where TFileModel : INamedFileInfo, new()
     {

osu.Game/Database/ICanAcceptFiles.cs

@@ -1,6 +1,6 @@
 namespace osu.Game.Database
 {
-    public interface ICanImportArchives
+    public interface ICanAcceptFiles
     {
         void Import(params string[] paths);
 

osu.Game/IPC/ArchiveImportIPCChannel.cs

@@ -12,9 +12,9 @@ namespace osu.Game.IPC
 {
     public class ArchiveImportIPCChannel : IpcChannel<ArchiveImportMessage>
     {
-        private readonly ICanImportArchives importer;
+        private readonly ICanAcceptFiles importer;
 
-        public ArchiveImportIPCChannel(IIpcHost host, ICanImportArchives importer = null)
+        public ArchiveImportIPCChannel(IIpcHost host, ICanAcceptFiles importer = null)
             : base(host)
         {
             this.importer = importer;

osu.Game/OsuGame.cs

@@ -105,6 +105,8 @@ namespace osu.Game
         {
             this.frameworkConfig = frameworkConfig;
 
+            ScoreStore.ScoreImported += score => Schedule(() => LoadScore(score));
+
             if (!Host.IsPrimaryInstance)
             {
                 Logger.Log(@"osu! does not support multiple running instances.", LoggingTarget.Runtime, LogLevel.Error);
@@ -114,7 +116,8 @@ namespace osu.Game
             if (args?.Length > 0)
             {
                 var paths = args.Where(a => !a.StartsWith(@"-"));
-                Task.Run(() => BeatmapManager.Import(paths.ToArray()));
+
+                Task.Run(() => Import(paths.ToArray()));
             }
 
             dependencies.CacheAs(this);

osu.Game/OsuGameBase.cs

@@ -2,7 +2,10 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
+using System.Linq;
 using System.Reflection;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
@@ -30,7 +33,7 @@ using osu.Game.Rulesets.Scoring;
 
 namespace osu.Game
 {
-    public class OsuGameBase : Framework.Game, IOnlineComponent
+    public class OsuGameBase : Framework.Game, IOnlineComponent, ICanAcceptFiles
     {
         protected OsuConfigManager LocalConfig;
 
@@ -114,6 +117,8 @@ namespace osu.Game
             dependencies.Cache(SettingsStore = new SettingsStore(contextFactory));
             dependencies.Cache(new OsuColour());
 
+            fileImporters.Add(BeatmapManager);
+
             //this completely overrides the framework default. will need to change once we make a proper FontStore.
             dependencies.Cache(Fonts = new FontStore { ScaleAdjust = 100 });
 
@@ -257,5 +262,17 @@ namespace osu.Game
 
             base.Dispose(isDisposing);
         }
+
+        private readonly List<ICanAcceptFiles> fileImporters = new List<ICanAcceptFiles>();
+
+        public void Import(params string[] paths)
+        {
+            var extension = Path.GetExtension(paths.First());
+
+            foreach (var importer in fileImporters)
+                if (importer.HandledExtensions.Contains(extension)) importer.Import(paths);
+        }
+
+        public string[] HandledExtensions => fileImporters.SelectMany(i => i.HandledExtensions).ToArray();
     }
 }

osu.Game/Rulesets/Scoring/ScoreStore.cs

@@ -1,6 +1,7 @@
 // Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using System;
 using System.Collections.Generic;
 using System.IO;
 using osu.Framework.Platform;
@@ -14,7 +15,7 @@ using SharpCompress.Compressors.LZMA;
 
 namespace osu.Game.Rulesets.Scoring
 {
-    public class ScoreStore : DatabaseBackedStore
+    public class ScoreStore : DatabaseBackedStore, ICanAcceptFiles
     {
         private readonly Storage storage;
 
@@ -23,6 +24,8 @@ namespace osu.Game.Rulesets.Scoring
 
         private const string replay_folder = @"replays";
 
+        public event Action<Score> ScoreImported;
+
         // ReSharper disable once NotAccessedField.Local (we should keep a reference to this so it is not finalised)
         private ScoreIPCChannel ipc;
 
@@ -36,6 +39,18 @@ namespace osu.Game.Rulesets.Scoring
                 ipc = new ScoreIPCChannel(importHost, this);
         }
 
+        public string[] HandledExtensions => new[] { ".osr" };
+
+        public void Import(params string[] paths)
+        {
+            foreach (var path in paths)
+            {
+                var score = ReadReplayFile(path);
+                if (score != null)
+                    ScoreImported?.Invoke(score);
+            }
+        }
+
         public Score ReadReplayFile(string replayFilename)
         {
             Score score;
@@ -159,5 +174,6 @@ namespace osu.Game.Rulesets.Scoring
 
             return new Replay { Frames = frames };
         }
+
     }
 }

osu.Game/osu.Game.csproj

@@ -277,7 +277,7 @@
     <Compile Include="Database\ArchiveModelManager.cs" />
     <Compile Include="Database\DatabaseContextFactory.cs" />
     <Compile Include="Database\DatabaseWriteUsage.cs" />
-    <Compile Include="Database\ICanImportArchives.cs" />
+    <Compile Include="Database\ICanAcceptFiles.cs" />
     <Compile Include="Database\IDatabaseContextFactory.cs" />
     <Compile Include="Database\IHasPrimaryKey.cs" />
     <Compile Include="Database\INamedFileInfo.cs" />