From 68f28ff660183a869fc2803b98beaec13dfdce1e Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Thu, 21 Jul 2022 02:27:29 +0900
Subject: [PATCH] Add last applied version to `RulesetInfo`

---
 osu.Game/Database/RealmAccess.cs | 3 ++-
 osu.Game/Rulesets/RulesetInfo.cs | 9 ++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/osu.Game/Database/RealmAccess.cs b/osu.Game/Database/RealmAccess.cs
index dff2bdddbd..7aac94576f 100644
--- a/osu.Game/Database/RealmAccess.cs
+++ b/osu.Game/Database/RealmAccess.cs
@@ -63,8 +63,9 @@ namespace osu.Game.Database
         /// 17   2022-07-16    Added CountryCode to RealmUser.
         /// 18   2022-07-19    Added OnlineMD5Hash and LastOnlineUpdate to BeatmapInfo.
         /// 19   2022-07-19    Added DateSubmitted and DateRanked to BeatmapSetInfo.
+        /// 20   2022-07-21    Added LastAppliedDifficultyVersion to RulesetInfo.
         /// </summary>
-        private const int schema_version = 19;
+        private const int schema_version = 20;
 
         /// <summary>
         /// Lock object which is held during <see cref="BlockAllOperations"/> sections, blocking realm retrieval during blocking periods.
diff --git a/osu.Game/Rulesets/RulesetInfo.cs b/osu.Game/Rulesets/RulesetInfo.cs
index b5e5fa1561..91954320a4 100644
--- a/osu.Game/Rulesets/RulesetInfo.cs
+++ b/osu.Game/Rulesets/RulesetInfo.cs
@@ -4,6 +4,7 @@
 using System;
 using JetBrains.Annotations;
 using osu.Framework.Testing;
+using osu.Game.Rulesets.Difficulty;
 using Realms;
 
 namespace osu.Game.Rulesets
@@ -22,6 +23,11 @@ namespace osu.Game.Rulesets
 
         public string InstantiationInfo { get; set; } = string.Empty;
 
+        /// <summary>
+        /// Stores the last applied <see cref="DifficultyCalculator.Version"/>
+        /// </summary>
+        public int LastAppliedDifficultyVersion { get; set; }
+
         public RulesetInfo(string shortName, string name, string instantiationInfo, int onlineID)
         {
             ShortName = shortName;
@@ -86,7 +92,8 @@ namespace osu.Game.Rulesets
             Name = Name,
             ShortName = ShortName,
             InstantiationInfo = InstantiationInfo,
-            Available = Available
+            Available = Available,
+            LastAppliedDifficultyVersion = LastAppliedDifficultyVersion,
         };
 
         public Ruleset CreateInstance()