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using System.Reflection;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Text.Json.Serialization;
using System.Text.Json.Serialization.Metadata;
using ArcaneLibs;
using ArcaneLibs.Extensions;
using LibMatrix.EventTypes;
using LibMatrix.Helpers;
using LibMatrix.Interfaces;
namespace LibMatrix;
public class StateEvent {
public static List<Type> KnownStateEventTypes { get; } = new ClassCollector<EventContent>().ResolveFromAllAccessibleAssemblies();
public static readonly Dictionary<string, Type> KnownStateEventTypesByName = KnownStateEventTypes.Aggregate(
new Dictionary<string, Type>(),
(dict, type) => {
var attrs = type.GetCustomAttributes<MatrixEventAttribute>();
foreach (var attr in attrs) {
dict[attr.EventName] = type;
}
return dict;
});
public static Type GetStateEventType(string type) {
if (type == "m.receipt") {
return typeof(Dictionary<string, JsonObject>);
}
// var eventType = KnownStateEventTypes.FirstOrDefault(x =>
// x.GetCustomAttributes<MatrixEventAttribute>()?.Any(y => y.EventName == type) ?? false);
var eventType = KnownStateEventTypesByName.GetValueOrDefault(type);
return eventType ?? typeof(UnknownEventContent);
}
public EventContent TypedContent {
get {
try {
return (EventContent) RawContent.Deserialize(GetType)!;
}
catch (JsonException e) {
Console.WriteLine(e);
Console.WriteLine("Content:\n" + (RawContent?.ToJson() ?? "null"));
}
return null;
}
set => RawContent = JsonSerializer.Deserialize<JsonObject>(JsonSerializer.Serialize(value, value.GetType()));
}
[JsonPropertyName("state_key")]
public string StateKey { get; set; } = "";
[JsonPropertyName("type")]
public string Type { get; set; }
[JsonPropertyName("replaces_state")]
public string? ReplacesState { get; set; }
private JsonObject? _rawContent;
[JsonPropertyName("content")]
public JsonObject? RawContent {
get => _rawContent;
set {
_rawContent = value;
// if (Type is not null && this is StateEventResponse stateEventResponse) {
// if (File.Exists($"unknown_state_events/{Type}/{stateEventResponse.EventId}.json")) return;
// var x = GetType.Name;
// }
}
}
[JsonIgnore]
public new Type GetType {
get {
var type = GetStateEventType(Type);
//special handling for some types
// if (type == typeof(RoomEmotesEventContent)) {
// RawContent["emote"] = RawContent["emote"]?.AsObject() ?? new JsonObject();
// }
//
// if (this is StateEventResponse stateEventResponse) {
// if (type == null || type == typeof(object)) {
// Console.WriteLine($"Warning: unknown event type '{Type}'!");
// Console.WriteLine(RawContent.ToJson());
// Directory.CreateDirectory($"unknown_state_events/{Type}");
// File.WriteAllText($"unknown_state_events/{Type}/{stateEventResponse.EventId}.json",
// RawContent.ToJson());
// Console.WriteLine($"Saved to unknown_state_events/{Type}/{stateEventResponse.EventId}.json");
// }
// else if (RawContent is not null && RawContent.FindExtraJsonObjectFields(type)) {
// Directory.CreateDirectory($"unknown_state_events/{Type}");
// File.WriteAllText($"unknown_state_events/{Type}/{stateEventResponse.EventId}.json",
// RawContent.ToJson());
// Console.WriteLine($"Saved to unknown_state_events/{Type}/{stateEventResponse.EventId}.json");
// }
// }
return type;
}
}
//debug
[JsonIgnore]
public string dtype {
get {
var res = GetType().Name switch {
"StateEvent`1" => "StateEvent",
_ => GetType().Name
};
return res;
}
}
[JsonIgnore]
public string cdtype => TypedContent.GetType().Name;
}
/*
public class StateEventContentPolymorphicTypeInfoResolver : DefaultJsonTypeInfoResolver
{
public override JsonTypeInfo GetTypeInfo(Type type, JsonSerializerOptions options)
{
JsonTypeInfo jsonTypeInfo = base.GetTypeInfo(type, options);
Type baseType = typeof(EventContent);
if (jsonTypeInfo.Type == baseType) {
jsonTypeInfo.PolymorphismOptions = new JsonPolymorphismOptions {
TypeDiscriminatorPropertyName = "type",
IgnoreUnrecognizedTypeDiscriminators = true,
UnknownDerivedTypeHandling = JsonUnknownDerivedTypeHandling.FallBackToBaseType,
DerivedTypes = StateEvent.KnownStateEventTypesByName.Select(x => new JsonDerivedType(x.Value, x.Key)).ToList()
// DerivedTypes = new ClassCollector<EventContent>()
// .ResolveFromAllAccessibleAssemblies()
// .SelectMany(t => t.GetCustomAttributes<MatrixEventAttribute>()
// .Select(a => new JsonDerivedType(t, attr.EventName));
};
}
return jsonTypeInfo;
}
}
*/
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