// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Text.Json.Nodes;
using System.Text.Json.Schema;
 
namespace System.Text.Json.Serialization.Converters
{
    internal sealed class ReadOnlyMemoryByteConverter : JsonConverter<ReadOnlyMemory<byte>>
    {
        public override bool HandleNull => true;
 
        public override ReadOnlyMemory<byte> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
        {
            return reader.TokenType is JsonTokenType.Null ? default : reader.GetBytesFromBase64();
        }
 
        public override void Write(Utf8JsonWriter writer, ReadOnlyMemory<byte> value, JsonSerializerOptions options)
        {
            writer.WriteBase64StringValue(value.Span);
        }
 
        internal override JsonSchema? GetSchema(JsonNumberHandling _) => new() { Type = JsonSchemaType.String };
    }
}