Persist channel DRED settings

tests/VoiceCat.Tests/AccountStoreTests.cs

@@ -54,4 +54,33 @@ public sealed class AccountStoreTests
         }
         finally { Directory.Delete(directory, true); }
     }
+
+    [Fact]
+    public void VersionTwoDatabaseMigratesDredAsDisabled()
+    {
+        string directory = Path.Combine(Path.GetTempPath(), "voicecat-v2-" + Guid.NewGuid().ToString("N"));
+        Directory.CreateDirectory(directory);
+        string path = Path.Combine(directory, "voicecat.db");
+        try
+        {
+            using (var store = new AccountStore(path)) store.LoadChannels();
+            using (var connection = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString()))
+            {
+                connection.Open();
+                using var command = connection.CreateCommand();
+                command.CommandText = "ALTER TABLE channels DROP COLUMN audio_dred; UPDATE server_meta SET value='2' WHERE key='schema_version';";
+                command.ExecuteNonQuery();
+            }
+
+            using (var migrated = new AccountStore(path))
+                Assert.All(migrated.LoadChannels(), channel => Assert.False(channel.Audio.Dred));
+
+            using var verify = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString());
+            verify.Open();
+            using var query = verify.CreateCommand();
+            query.CommandText = "SELECT value FROM server_meta WHERE key='schema_version'";
+            Assert.Equal("3", query.ExecuteScalar());
+        }
+        finally { Directory.Delete(directory, true); }
+    }
 }

tests/VoiceCat.Tests/ChannelManagementTests.cs

@@ -99,4 +99,33 @@ public class ChannelManagementTests
         Assert.True(await ResultAsync(admin, new() { DeleteChannel = new() { ChannelId = child.Id } }));
         Assert.True(await ResultAsync(admin, new() { DeleteChannel = new() { ChannelId = parent.Id } }));
     }
+
+    [Fact]
+    public async Task DredAudioSettingsRoundTripThroughEditAndDatabaseRestart()
+    {
+        await using var fixture = new ServerFixture();
+        await using var admin = await AdminAsync(fixture);
+        using (var store = new AccountStore(Path.Combine(fixture.Directory, "voicecat.db")))
+        {
+            Channel music = store.LoadChannels().Single(c => c.Name == "Music Room");
+            music.Audio.SampleRate = 48_000;
+            music.Audio.BitrateBps = 128_000;
+            music.Audio.ExpectedPacketLoss = 15;
+            music.Audio.Dtx = true;
+            music.Audio.Fec = true;
+            music.Audio.Dred = true;
+            music.Audio.Complexity = 10;
+            Assert.True(await ResultAsync(admin, new() { EditChannel = new() { Channel = music } }));
+        }
+
+        using var reopened = new AccountStore(Path.Combine(fixture.Directory, "voicecat.db"));
+        AudioConfig audio = reopened.LoadChannels().Single(c => c.Name == "Music Room").Audio;
+        Assert.Equal(48_000U, audio.SampleRate);
+        Assert.Equal(128_000U, audio.BitrateBps);
+        Assert.Equal(15U, audio.ExpectedPacketLoss);
+        Assert.True(audio.Dtx);
+        Assert.True(audio.Fec);
+        Assert.True(audio.Dred);
+        Assert.Equal(10U, audio.Complexity);
+    }
 }

tests/VoiceCat.Tests/WindowsManagedClientTests.cs

@@ -78,6 +78,25 @@ public class WindowsManagedClientTests
         Assert.Empty(alice.ManagedClient.LocalStreams);
     }
 
+    [Fact]
+    public async Task WindowsChannelEditorSettingsRoundTripFromServer()
+    {
+        await using var fixture = new ServerFixture();
+        using (var accounts = new AccountStore(Path.Combine(fixture.Directory, "voicecat.db")))
+            await accounts.CreateAccountAsync("Admin", "secret", true);
+        using var client = new Client("Admin", "test", tofuStorePath: Path.Combine(fixture.Directory, "admin.pins"));
+        await Login(client, fixture, true);
+        ChannelInfo music = client.ListChannels().Single(c => c.Name == "Music Room");
+        var expected = new AudioConfigInfo(0, true, 48_000, 128_000, 20, 1, true, 15, true, 10, true);
+        var edit = new ChannelEditInfo(music.Id, music.ParentId, music.Name, music.Topic,
+            music.PasswordProtected, null, music.MaxUsers, music.SortOrder, expected);
+
+        Assert.Equal(VcResult.Ok, client.EditChannel(edit));
+        await Until(client, () => client.ListChannels().Single(c => c.Id == music.Id).Audio.Dred);
+
+        Assert.Equal(expected, client.ListChannels().Single(c => c.Id == music.Id).Audio);
+    }
+
     [Fact]
     public async Task WindowsScreenAudioPreservesDistinctStereoChannels()
     {