[CHA-2354] Add ParsedPredefinedFilterResponse to QueryChannelResponse

src/Models/Channel.cs

@@ -99,9 +99,24 @@ public class ChannelRequest : CustomDataBase
         public ConfigOverridesRequest ConfigOverrides { get; set; }
     }
 
+    public class ParsedPredefinedFilterResponse
+    {
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        [JsonProperty("filter")]
+        public Dictionary<string, object> Filter { get; set; }
+
+        [JsonProperty("sort", NullValueHandling = NullValueHandling.Ignore)]
+        public List<SortParameter> Sort { get; set; }
+    }
+
     public class QueryChannelResponse : ApiResponse
     {
         public List<ChannelGetResponse> Channels { get; set; }
+
+        [JsonProperty("predefined_filter", NullValueHandling = NullValueHandling.Ignore)]
+        public ParsedPredefinedFilterResponse PredefinedFilter { get; set; }
     }
 
     public class QueryMembersResponse : ApiResponse

tests/ParsedPredefinedFilterResponseTests.cs

@@ -0,0 +1,73 @@
+using System.Collections.Generic;
+using FluentAssertions;
+using Newtonsoft.Json;
+using NUnit.Framework;
+using StreamChat.Models;
+
+namespace StreamChatTests
+{
+    /// <summary>Tests for <see cref="ParsedPredefinedFilterResponse"/>.
+    /// </summary>
+    /// <remarks>
+    /// The tests follow arrange-act-assert pattern divided by empty lines.
+    /// Please make sure to follow the pattern to keep the consistency.
+    /// </remarks>
+    [TestFixture]
+    public class ParsedPredefinedFilterResponseTests
+    {
+        [Test]
+        public void TestDeserializePredefinedFilterResponse()
+        {
+            var json = @"{
+                ""channels"": [],
+                ""predefined_filter"": {
+                    ""name"": ""user_messaging"",
+                    ""filter"": {""type"": ""messaging"", ""members"": {""$in"": [""user123""]}},
+                    ""sort"": [{""Field"": ""last_message_at"", ""Direction"": -1}]
+                },
+                ""duration"": ""0.01s""
+            }";
+
+            var response = JsonConvert.DeserializeObject<QueryChannelResponse>(json);
+
+            response.PredefinedFilter.Should().NotBeNull();
+            response.PredefinedFilter.Name.Should().Be("user_messaging");
+            response.PredefinedFilter.Filter.Should().NotBeNull();
+            response.PredefinedFilter.Filter["type"].Should().Be("messaging");
+            response.PredefinedFilter.Sort.Should().HaveCount(1);
+            response.PredefinedFilter.Sort[0].Field.Should().Be("last_message_at");
+        }
+
+        [Test]
+        public void TestDeserializeResponseWithoutPredefinedFilter()
+        {
+            var json = @"{
+                ""channels"": [],
+                ""duration"": ""0.01s""
+            }";
+
+            var response = JsonConvert.DeserializeObject<QueryChannelResponse>(json);
+
+            response.PredefinedFilter.Should().BeNull();
+        }
+
+        [Test]
+        public void TestDeserializePredefinedFilterWithoutSort()
+        {
+            var json = @"{
+                ""channels"": [],
+                ""predefined_filter"": {
+                    ""name"": ""simple_filter"",
+                    ""filter"": {""type"": ""messaging""}
+                },
+                ""duration"": ""0.01s""
+            }";
+
+            var response = JsonConvert.DeserializeObject<QueryChannelResponse>(json);
+
+            response.PredefinedFilter.Should().NotBeNull();
+            response.PredefinedFilter.Name.Should().Be("simple_filter");
+            response.PredefinedFilter.Sort.Should().BeNull();
+        }
+    }
+}