Add deserialization support for GeoBounds and GeoLocation

src/Elastic.Clients.Elasticsearch/_Shared/Core/UrlParameters/Username/Username.cs

@@ -79,24 +79,24 @@ public static bool TryParse([NotNullWhen(true)] string? s, IFormatProvider? prov
 }
 
 internal sealed class UsernameConverter :
-	JsonConverter<Name>
+	JsonConverter<Username>
 {
-	public override Name? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+	public override Username? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 	{
 		reader.ValidateToken(JsonTokenType.String);
 
 		return reader.GetString()!;
 	}
 
-	public override Name ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert,
+	public override Username ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert,
 		JsonSerializerOptions options)
 	{
 		reader.ValidateToken(JsonTokenType.PropertyName);
 
 		return reader.GetString()!;
 	}
 
-	public override void Write(Utf8JsonWriter writer, Name value, JsonSerializerOptions options)
+	public override void Write(Utf8JsonWriter writer, Username value, JsonSerializerOptions options)
 	{
 		if (value?.Value is null)
 		{
@@ -106,7 +106,7 @@ public override void Write(Utf8JsonWriter writer, Name value, JsonSerializerOpti
 		writer.WriteStringValue(value.Value);
 	}
 
-	public override void WriteAsPropertyName(Utf8JsonWriter writer, Name value, JsonSerializerOptions options)
+	public override void WriteAsPropertyName(Utf8JsonWriter writer, Username value, JsonSerializerOptions options)
 	{
 		if (value?.Value is null)
 		{

src/Elastic.Clients.Elasticsearch/_Shared/Types/GeoBounds.cs

@@ -19,9 +19,70 @@ public sealed partial class GeoBounds
 internal sealed class GeoBoundsConverter :
 	JsonConverter<GeoBounds>
 {
+	// Coordinates.
+
+	private static readonly JsonEncodedText PropBottom = JsonEncodedText.Encode("bottom");
+	private static readonly JsonEncodedText PropLeft = JsonEncodedText.Encode("left");
+	private static readonly JsonEncodedText PropRight = JsonEncodedText.Encode("right");
+	private static readonly JsonEncodedText PropTop = JsonEncodedText.Encode("top");
+
+	// TopLeftBottomRight.
+
+	private static readonly JsonEncodedText PropBottomRight = JsonEncodedText.Encode("bottom_right");
+	private static readonly JsonEncodedText PropTopLeft = JsonEncodedText.Encode("top_left");
+
+	// TopRightBottomLeft.
+
+	private static readonly JsonEncodedText PropBottomLeft = JsonEncodedText.Encode("bottom_left");
+	private static readonly JsonEncodedText PropTopRight = JsonEncodedText.Encode("top_right");
+
+	// WKT.
+
+	private static readonly JsonEncodedText PropWkt = JsonEncodedText.Encode("wkt");
+
 	public override GeoBounds? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 	{
-		throw new InvalidOperationException();
+		reader.ValidateToken(JsonTokenType.StartObject);
+
+		var readerSnapshot = reader;
+		reader.Read();
+
+		GeoBounds.Kind? kind = null;
+		if (reader.TokenType is JsonTokenType.PropertyName)
+		{
+			if (reader.ValueTextEquals(PropBottom) || reader.ValueTextEquals(PropLeft) ||
+				reader.ValueTextEquals(PropRight) || reader.ValueTextEquals(PropTop))
+			{
+				kind = GeoBounds.Kind.Coordinates;
+			}
+
+			if (reader.ValueTextEquals(PropBottomRight) || reader.ValueTextEquals(PropTopLeft))
+			{
+				kind = GeoBounds.Kind.TopLeftBottomRight;
+			}
+
+			if (reader.ValueTextEquals(PropBottomLeft) || reader.ValueTextEquals(PropTopRight))
+			{
+				kind = GeoBounds.Kind.TopRightBottomLeft;
+			}
+
+			if (reader.ValueTextEquals(PropWkt))
+			{
+				kind = GeoBounds.Kind.Wkt;
+			}
+		}
+
+		reader = readerSnapshot;
+
+		return kind switch
+		{
+			GeoBounds.Kind.Coordinates => new(reader.ReadValue<CoordsGeoBounds>(options)),
+			GeoBounds.Kind.TopLeftBottomRight => new(reader.ReadValue<TopLeftBottomRightGeoBounds>(options)),
+			GeoBounds.Kind.TopRightBottomLeft => new(reader.ReadValue<TopRightBottomLeftGeoBounds>(options)),
+			GeoBounds.Kind.Wkt => new(reader.ReadValue<WktGeoBounds>(options)),
+			null => throw new JsonException($"Unrecognized '{typeof(GeoBounds)}' variant."),
+			_ => throw new InvalidOperationException("unreachable")
+		};
 	}
 
 	public override void Write(Utf8JsonWriter writer, GeoBounds value, JsonSerializerOptions options)

src/Elastic.Clients.Elasticsearch/_Shared/Types/GeoLocation.cs

@@ -21,9 +21,58 @@ public partial class GeoLocation
 internal sealed class GeoLocationConverter :
 	JsonConverter<GeoLocation>
 {
+	// LatitudeLongitude.
+
+	private static readonly JsonEncodedText PropLat = JsonEncodedText.Encode("lat");
+	private static readonly JsonEncodedText PropLon = JsonEncodedText.Encode("lon");
+
+	// GeoHash.
+
+	private static readonly JsonEncodedText PropGeoHash = JsonEncodedText.Encode("geohash");
+
 	public override GeoLocation? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 	{
-		throw new InvalidOperationException();
+		if (reader.TokenType is JsonTokenType.String)
+		{
+			return new GeoLocation(reader.GetString()!);
+		}
+
+		if (reader.TokenType is JsonTokenType.StartArray)
+		{
+			return new GeoLocation(reader.ReadCollectionValue<double>(options, null)!);
+		}
+
+		if (reader.TokenType is JsonTokenType.StartObject)
+		{
+			var readerSnapshot = reader;
+			reader.Read();
+
+			GeoLocation.Kind? kind = null;
+			if (reader.TokenType is JsonTokenType.PropertyName)
+			{
+				if (reader.ValueTextEquals(PropLat) || reader.ValueTextEquals(PropLon))
+				{
+					kind = GeoLocation.Kind.LatitudeLongitude;
+				}
+
+				if (reader.ValueTextEquals(PropGeoHash))
+				{
+					kind = GeoLocation.Kind.GeoHash;
+				}
+			}
+
+			reader = readerSnapshot;
+
+			return kind switch
+			{
+				GeoLocation.Kind.LatitudeLongitude => new(reader.ReadValue<LatLonGeoLocation>(options)),
+				GeoLocation.Kind.GeoHash => new(reader.ReadValue<GeoHashLocation>(options)),
+				null => throw new JsonException($"Unrecognized '{typeof(GeoLocation)}' variant."),
+				_ => throw new InvalidOperationException("unreachable")
+			};
+		}
+
+		throw new JsonException($"Unrecognized '{typeof(GeoLocation)}' variant.");
 	}
 
 	public override void Write(Utf8JsonWriter writer, GeoLocation value, JsonSerializerOptions options)