add a user most played beatmaps request/response

osu.Game/Online/API/Requests/GetBeatmapSetsResponse.cs

@@ -65,7 +65,7 @@ namespace osu.Game.Online.API.Requests
                     Ranked = ranked,
                     LastUpdated = lastUpdated,
                 },
-                Beatmaps = beatmaps.Select(b => b.ToBeatmap(rulesets)).ToList(),
+                Beatmaps = beatmaps?.Select(b => b.ToBeatmap(rulesets)).ToList(),
             };
         }
 

osu.Game/Online/API/Requests/GetUserBeatmapsRequest.cs

@@ -1,18 +1,19 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using System;
 using Humanizer;
 using System.Collections.Generic;
 
 namespace osu.Game.Online.API.Requests
 {
-    public class GetUserBeatmapsRequest : APIRequest<List<GetBeatmapSetsResponse>>
+    public class GetUserBeatmapsRequest<T> : APIRequest<List<T>>
     {
         private readonly long userId;
         private readonly int offset;
         private readonly BeatmapSetType type;
 
-        public GetUserBeatmapsRequest(long userId, BeatmapSetType type, int offset = 0)
+        protected GetUserBeatmapsRequest(long userId, BeatmapSetType type, int offset = 0)
         {
             this.userId = userId;
             this.offset = offset;
@@ -22,6 +23,16 @@ namespace osu.Game.Online.API.Requests
         protected override string Target => $@"users/{userId}/beatmapsets/{type.ToString().Underscore()}?offset={offset}";
     }
 
+    public class GetUserBeatmapsRequest : GetUserBeatmapsRequest<GetBeatmapSetsResponse>
+    {
+        public GetUserBeatmapsRequest(long userID, BeatmapSetType type, int offset = 0)
+            : base(userID, type, offset)
+        {
+            if(type == BeatmapSetType.MostPlayed)
+                throw new ArgumentException("Please use " + nameof(GetUserMostPlayedBeatmapsRequest) + " instead");
+        }
+    }
+
     public enum BeatmapSetType
     {
         MostPlayed,

osu.Game/Online/API/Requests/GetUserMostPlayedBeatmapsRequest.cs

@@ -0,0 +1,67 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Linq;
+using Newtonsoft.Json;
+using osu.Framework.Extensions;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets;
+
+namespace osu.Game.Online.API.Requests
+{
+    public class GetUserMostPlayedBeatmapsRequest : GetUserBeatmapsRequest<UserMostPlayedBeatmapsResponse>
+    {
+        public GetUserMostPlayedBeatmapsRequest(long userID, BeatmapSetType type, int offset = 0)
+            : base(userID, type, offset)
+        {
+            if (type != BeatmapSetType.MostPlayed)
+                throw new ArgumentException("Please use " + nameof(GetUserBeatmapsRequest) + " instead");
+        }
+    }
+
+    public class UserMostPlayedBeatmapsResponse
+    {
+        [JsonProperty("beatmap_id")]
+        public int BeatmapID;
+
+        [JsonProperty("count")]
+        public int PlayCount;
+
+        [JsonProperty]
+        private BeatmapResponse beatmap;
+
+        [JsonProperty]
+        private GetBeatmapSetsResponse beatmapSet;
+
+        public BeatmapInfo GetBeatmapInfo(RulesetStore rulesets)
+        {
+            BeatmapSetInfo setInfo = beatmapSet.ToBeatmapSet(rulesets);
+            return new BeatmapInfo
+            {
+                OnlineBeatmapID = beatmap.Id,
+                OnlineBeatmapSetID = setInfo.OnlineBeatmapSetID,
+                Ruleset = rulesets.AvailableRulesets.FirstOrDefault(ruleset => ruleset.Name.Equals(beatmap.Mode)),
+                StarDifficulty = beatmap.DifficultyRating,
+                Version = beatmap.Version,
+                Metadata = setInfo.Metadata,
+                BeatmapSet = setInfo,
+            };
+        }
+
+        private class BeatmapResponse
+        {
+            [JsonProperty]
+            public int Id;
+
+            [JsonProperty]
+            public string Mode;
+
+            [JsonProperty("difficulty_rating")]
+            public double DifficultyRating;
+
+            [JsonProperty]
+            public string Version;
+        }
+    }
+}

osu.Game/osu.Game.csproj

@@ -282,6 +282,7 @@
     <Compile Include="Migrations\OsuDbContextModelSnapshot.cs" />
     <Compile Include="Online\API\Requests\GetBeatmapSetRequest.cs" />
     <Compile Include="Online\API\Requests\GetBeatmapSetsResponse.cs" />
+    <Compile Include="Online\API\Requests\GetUserMostPlayedBeatmapsRequest.cs" />
     <Compile Include="Overlays\BeatmapSet\Scores\ClickableUsername.cs" />
     <Compile Include="Overlays\BeatmapSet\Scores\DrawableScore.cs" />
     <Compile Include="Overlays\BeatmapSet\Scores\DrawableTopScore.cs" />