Support filtering for multiple statuses when searching beatmaps in the map picker

osu.Game.Tests/NonVisual/Filtering/FilterQueryParserTest.cs

@@ -256,8 +256,8 @@ public void TestPartialStatusMatch()
             const string query = "status=r";
             var filterCriteria = new FilterCriteria();
             FilterQueryParser.ApplyQueries(filterCriteria, query);
-            Assert.AreEqual(BeatmapOnlineStatus.Ranked, filterCriteria.OnlineStatus.Min);
-            Assert.AreEqual(BeatmapOnlineStatus.Ranked, filterCriteria.OnlineStatus.Max);
+            Assert.IsNotEmpty(filterCriteria.OnlineStatus.Values);
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Ranked));
         }
 
         [Test]
@@ -268,10 +268,71 @@ public void TestApplyStatusQueries()
             FilterQueryParser.ApplyQueries(filterCriteria, query);
             Assert.AreEqual("I want the pp", filterCriteria.SearchText.Trim());
             Assert.AreEqual(4, filterCriteria.SearchTerms.Length);
-            Assert.AreEqual(BeatmapOnlineStatus.Ranked, filterCriteria.OnlineStatus.Min);
-            Assert.IsTrue(filterCriteria.OnlineStatus.IsLowerInclusive);
-            Assert.AreEqual(BeatmapOnlineStatus.Ranked, filterCriteria.OnlineStatus.Max);
-            Assert.IsTrue(filterCriteria.OnlineStatus.IsUpperInclusive);
+            Assert.IsNotEmpty(filterCriteria.OnlineStatus.Values);
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Ranked));
+        }
+
+        [Test]
+        public void TestApplyMultipleEqualityStatusQueries()
+        {
+            const string query = "status=ranked status=loved";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Is.Empty);
+        }
+
+        [Test]
+        public void TestApplyEqualStatusQueryWithMultipleValues()
+        {
+            const string query = "status=ranked,loved";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Is.Not.Empty);
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Ranked));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Loved));
+        }
+
+        [Test]
+        public void TestApplyRangeStatusMatches()
+        {
+            const string query = "status>=r";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Has.Count.EqualTo(4));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Ranked));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Approved));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Qualified));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Loved));
+        }
+
+        [Test]
+        public void TestApplyRangeStatusWithMultipleMatchesQuery()
+        {
+            const string query = "status>=r,l";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Is.EquivalentTo(Enum.GetValues<BeatmapOnlineStatus>()));
+        }
+
+        [Test]
+        public void TestApplyTwoRangeStatusQuery()
+        {
+            const string query = "status>r status<l";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Has.Count.EqualTo(2));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Approved));
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Qualified));
+        }
+
+        [Test]
+        public void TestApplyRangeAndEqualStatusQuery()
+        {
+            const string query = "status>r status=loved";
+            var filterCriteria = new FilterCriteria();
+            FilterQueryParser.ApplyQueries(filterCriteria, query);
+            Assert.That(filterCriteria.OnlineStatus.Values, Is.Not.Empty);
+            Assert.That(filterCriteria.OnlineStatus.Values, Contains.Item(BeatmapOnlineStatus.Loved));
         }
 
         [TestCase("creator")]

osu.Game/Screens/Select/FilterCriteria.cs

@@ -34,7 +34,7 @@ public class FilterCriteria
         public OptionalRange<double> Length;
         public OptionalRange<double> BPM;
         public OptionalRange<int> BeatDivisor;
-        public OptionalRange<BeatmapOnlineStatus> OnlineStatus;
+        public OptionalSet<BeatmapOnlineStatus> OnlineStatus = new OptionalSet<BeatmapOnlineStatus>();
         public OptionalRange<DateTimeOffset> LastPlayed;
         public OptionalTextFilter Creator;
         public OptionalTextFilter Artist;
@@ -114,6 +114,23 @@ public string SearchText
 
         public IRulesetFilterCriteria? RulesetCriteria { get; set; }
 
+        public readonly struct OptionalSet<T> : IEquatable<OptionalSet<T>>
+            where T : struct, Enum
+        {
+            public bool HasFilter => true;
+
+            public bool IsInRange(T value) => Values.Contains(value);
+
+            public HashSet<T> Values { get; }
+
+            public OptionalSet()
+            {
+                Values = Enum.GetValues<T>().ToHashSet();
+            }
+
+            public bool Equals(OptionalSet<T> other) => Values.SetEquals(other.Values);
+        }
+
         public struct OptionalRange<T> : IEquatable<OptionalRange<T>>
             where T : struct
         {

osu.Game/Screens/Select/FilterQueryParser.cs

@@ -69,7 +69,7 @@ private static bool tryParseKeywordCriteria(FilterCriteria criteria, string key,
                     return TryUpdateCriteriaRange(ref criteria.BeatDivisor, op, value, tryParseInt);
 
                 case "status":
-                    return TryUpdateCriteriaRange(ref criteria.OnlineStatus, op, value, tryParseEnum);
+                    return TryUpdateCriteriaSet(ref criteria.OnlineStatus, op, value);
 
                 case "creator":
                 case "author":
@@ -300,6 +300,75 @@ public static bool TryUpdateCriteriaRange<T>(ref FilterCriteria.OptionalRange<T>
             where T : struct
             => parseFunction.Invoke(val, out var converted) && tryUpdateCriteriaRange(ref range, op, converted);
 
+        /// <summary>
+        /// Attempts to parse a keyword filter of type <typeparamref name="T"/>,
+        /// from the specified <paramref name="op"/> and <paramref name="filterValue"/>.
+        /// If <paramref name="filterValue"/> can be parsed successfully, the function returns <c>true</c>
+        /// and the resulting range constraint is stored into the <paramref name="range"/>'s expected values.
+        /// </summary>
+        /// <param name="range">The <see cref="FilterCriteria.OptionalSet{T}"/> to store the parsed data into, if successful.</param>
+        /// <param name="op">The operator for the keyword filter.</param>
+        /// <param name="filterValue">The value of the keyword filter.</param>
+        public static bool TryUpdateCriteriaSet<T>(ref FilterCriteria.OptionalSet<T> range, Operator op, string filterValue)
+            where T : struct, Enum
+        {
+            var matchingValues = new HashSet<T>();
+
+            if (op == Operator.Equal && filterValue.Contains(','))
+            {
+                string[] splitValues = filterValue.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+                foreach (string splitValue in splitValues)
+                {
+                    if (!tryParseEnum<T>(splitValue, out var parsedValue))
+                        return false;
+
+                    matchingValues.Add(parsedValue);
+                }
+            }
+            else
+            {
+                if (!tryParseEnum<T>(filterValue, out var pivotValue))
+                    return false;
+
+                var allDefinedValues = Enum.GetValues<T>();
+
+                foreach (var val in allDefinedValues)
+                {
+                    int compareResult = Comparer<T>.Default.Compare(val, pivotValue);
+
+                    switch (op)
+                    {
+                        case Operator.Less:
+                            if (compareResult < 0) matchingValues.Add(val);
+                            break;
+
+                        case Operator.LessOrEqual:
+                            if (compareResult <= 0) matchingValues.Add(val);
+                            break;
+
+                        case Operator.Equal:
+                            if (compareResult == 0) matchingValues.Add(val);
+                            break;
+
+                        case Operator.GreaterOrEqual:
+                            if (compareResult >= 0) matchingValues.Add(val);
+                            break;
+
+                        case Operator.Greater:
+                            if (compareResult > 0) matchingValues.Add(val);
+                            break;
+
+                        default:
+                            return false;
+                    }
+                }
+            }
+
+            range.Values.IntersectWith(matchingValues);
+            return true;
+        }
+
         private static bool tryUpdateCriteriaRange<T>(ref FilterCriteria.OptionalRange<T> range, Operator op, T value)
             where T : struct
         {