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using System.Reflection;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Text.Json.Serialization;
using ArcaneLibs.Extensions;
namespace LibMatrix.EventTypes;
public interface IMatrixEvent {
}
// <T> : MatrixEventContent where T : MatrixEventContent<T>, new() {
/// <summary>
/// Extensible Event Content, aims to provide an API similar to JsonNode/JsonObject
/// <seealso cref="System.Text.Json.Nodes.JsonNode"/>
/// <seealso cref="System.Text.Json.Nodes.JsonObject"/>
/// </summary>
// [JsonConverter(typeof(BaseMatrixEventContent.MatrixEventContentConverter<BaseMatrixEventContent>))]
// [JsonSerializable(typeof(MatrixEventContent))]
public abstract class BaseMatrixEventContent {
public JsonObject InternalJson { get; set; } = new();
public BaseMatrixEventContent() { }
public BaseMatrixEventContent(JsonNode json) {
InternalJson = json.AsObject();
}
// public static implicit operator BaseMatrixEventContent(JsonNode json) => new(json);
// public static implicit operator JsonNode(MatrixEventContent content) => content.InternalJson;
[JsonIgnore]
public IEnumerable<string> EventTypes => this.GetType().GetCustomAttributes<MatrixEventAttribute>().Select(x => x.EventType);
[JsonIgnore]
public string EventType => EventTypes.First();
public JsonNode? this[string key] {
get => InternalJson[key];
set => InternalJson[key] = value;
}
public string ToJson() => InternalJson.ToJson();
public class MatrixEventContentConverter<T> : JsonConverter<T> where T : BaseMatrixEventContent, new() {
public override T? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
// read entire object into a JsonObject
// Console.WriteLine($"MatrixEventContentConverter<T>: Reading {typeToConvert}");
var json = JsonNode.Parse(ref reader);
return new T { InternalJson = json.AsObject() };
}
public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options) {
// Console.WriteLine($"MatrixEventContentConverter<T>: Writing {value.GetType()}");
value.InternalJson.WriteTo(writer);
}
}
}
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