SocialPub/PrivaPub/Models/ActivityPub/ActivityPubObject.cs

using PrivaPub.Models.ActivityPub.Extra;

using System.Text.Json.Serialization;

namespace PrivaPub.Models.ActivityPub
{
	[JsonSerializable(typeof(ActivityPubObject))]
	public partial class ActivityPubObject
	{
		[JsonPropertyName("@context")]
		public List<object> Context => new()
		{
			"https://www.w3.org/ns/activitystreams",
			"https://{0}/schemas/litepub-0.1.jsonld",
			new ActivityPubContextLanguage()
		};

		[JsonPropertyName("id")]
		public string Id { get; set; }
		[JsonPropertyName("type")]
		public ObjectType? Type { get; set; }

		[JsonPropertyName("mediaType")]
		public string MediaType { get; set; }

		[JsonPropertyName("published")]
		public DateTime? Published { get; set; }

		[JsonPropertyName("updated")]
		public DateTime? Updated { get; set; }

		[JsonExtensionData]
		public Dictionary<string, object> OtherData { get; set; }

		[JsonPropertyName("source")]
		public ActivityPubSource Source { get; set; }

		//and part of link
		[JsonPropertyName("to")]
		public string[] To { get; set; }
		[JsonPropertyName("cc")]
		public string[] Cc { get; set; }
		[JsonPropertyName("bcc")]
		public string[] Bcc { get; set; }
		[JsonPropertyName("bto")]
		public string[] Bto { get; set; }

		[JsonPropertyName("audience")]
		public ActivityPubAudience Audience { get; set; }

		[JsonIgnore]
		public MacroType MacroType => Type switch
		{
			ObjectType.Article or
			ObjectType.Audio or
			ObjectType.Document or
			ObjectType.Event or
			ObjectType.Image or
			ObjectType.Note or
			ObjectType.Page or
			ObjectType.Place or
			ObjectType.Profile or
			ObjectType.Relationship or
			ObjectType.Tombstone or
			ObjectType.Video => MacroType.Object,

			ObjectType.Mention => MacroType.Link,

			ObjectType.Application or
			ObjectType.Group or
			ObjectType.Organization or
			ObjectType.Person or
			ObjectType.Service => MacroType.Actor,

			ObjectType.Accept or
			ObjectType.Add or
			ObjectType.Announce or
			ObjectType.Arrive or
			ObjectType.Block or
			ObjectType.Create or
			ObjectType.Delete or
			ObjectType.Dislike or
			ObjectType.Flag or
			ObjectType.Follow or
			ObjectType.Ignore or
			ObjectType.Invite or
			ObjectType.Join or
			ObjectType.Leave or
			ObjectType.Like or
			ObjectType.Listen or
			ObjectType.Move or
			ObjectType.Offer or
			ObjectType.Question or
			ObjectType.Reject or
			ObjectType.Read or
			ObjectType.Remove or
			ObjectType.TentativeReject or
			ObjectType.TentativeAccept or
			ObjectType.Travel or
			ObjectType.Undo or
			ObjectType.Update or
			ObjectType.View => MacroType.Activity,

			ObjectType.Collection => MacroType.Collection,
			ObjectType.CollectionPage => MacroType.CollectionPage,
			ObjectType.OrderedCollection => MacroType.OrderedCollection,
			ObjectType.OrderedCollectionPage => MacroType.OrderedCollectionPage,

			_ => MacroType.Unknown
		};
	}

	public class ActivityPubContextLanguage
	{
		[JsonPropertyName("@language")]
		public string Language { get; set; } = "und";
	}

	public class ActivityPubSource
	{
		[JsonPropertyName("content")]
		public string Content { get; set; }
		[JsonPropertyName("mediaType")]
		public string MediaType { get; set; }
	}
}