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using Ryujinx.Common.Configuration.Hid;
using Ryujinx.Common.Configuration.Hid.Controller.Motion;
using System.IO;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;
namespace Ryujinx.Common.Utilities
{
public class JsonHelper
{
public static JsonNamingPolicy SnakeCase { get; }
private class SnakeCaseNamingPolicy : JsonNamingPolicy
{
public override string ConvertName(string name)
{
if (string.IsNullOrEmpty(name))
{
return name;
}
StringBuilder builder = new StringBuilder();
for (int i = 0; i < name.Length; i++)
{
char c = name[i];
if (char.IsUpper(c))
{
if (i == 0 || char.IsUpper(name[i - 1]))
{
builder.Append(char.ToLowerInvariant(c));
}
else
{
builder.Append("_");
builder.Append(char.ToLowerInvariant(c));
}
}
else
{
builder.Append(c);
}
}
return builder.ToString();
}
}
static JsonHelper()
{
SnakeCase = new SnakeCaseNamingPolicy();
}
public static JsonSerializerOptions GetDefaultSerializerOptions(bool prettyPrint = false)
{
JsonSerializerOptions options = new JsonSerializerOptions
{
DictionaryKeyPolicy = SnakeCase,
PropertyNamingPolicy = SnakeCase,
WriteIndented = prettyPrint,
AllowTrailingCommas = true,
ReadCommentHandling = JsonCommentHandling.Skip
};
options.Converters.Add(new JsonStringEnumConverter());
options.Converters.Add(new JsonInputConfigConverter());
options.Converters.Add(new JsonMotionConfigControllerConverter());
return options;
}
public static T Deserialize<T>(Stream stream)
{
using (BinaryReader reader = new BinaryReader(stream))
{
return JsonSerializer.Deserialize<T>(reader.ReadBytes((int)(stream.Length - stream.Position)), GetDefaultSerializerOptions());
}
}
public static T DeserializeFromFile<T>(string path)
{
return Deserialize<T>(File.ReadAllText(path));
}
public static T Deserialize<T>(string json)
{
return JsonSerializer.Deserialize<T>(json, GetDefaultSerializerOptions());
}
public static void Serialize<TValue>(Stream stream, TValue obj, bool prettyPrint = false)
{
using (BinaryWriter writer = new BinaryWriter(stream))
{
writer.Write(SerializeToUtf8Bytes(obj, prettyPrint));
}
}
public static string Serialize<TValue>(TValue obj, bool prettyPrint = false)
{
return JsonSerializer.Serialize(obj, GetDefaultSerializerOptions(prettyPrint));
}
public static byte[] SerializeToUtf8Bytes<T>(T obj, bool prettyPrint = false)
{
return JsonSerializer.SerializeToUtf8Bytes(obj, GetDefaultSerializerOptions(prettyPrint));
}
}
}
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