using PrivaPub.Federation.Actors;

using System.Security.Cryptography;
using System.Text.Json;
using System.Text.Json.Nodes;

namespace PrivaPub.Tests.Federation
{
	public class ActorFeaturesTests
	{
		[Fact]
		public void A_rich_actor_reports_the_extensions_it_uses()
		{
			using var rsa = RSA.Create(4096);
			var actor = new JsonObject
			{
				["id"] = "https://social.example/users/a",
				["type"] = "Person",
				["featured"] = "https://social.example/users/a/featured",
				["alsoKnownAs"] = new JsonArray("https://old.example/users/a"),
				["endpoints"] = new JsonObject { ["sharedInbox"] = "https://social.example/inbox" },
				["assertionMethod"] = new JsonArray(),
				["attachment"] = new JsonArray(new JsonObject { ["type"] = "PropertyValue", ["name"] = "x", ["value"] = "y" }),
				["manuallyApprovesFollowers"] = true,
				["discoverable"] = false,
				["indexable"] = true,
				["isCat"] = true,
				["_misskey_summary"] = "hi",
				["publicKey"] = new JsonObject { ["id"] = "https://social.example/users/a#main-key", ["publicKeyPem"] = rsa.ExportSubjectPublicKeyInfoPem() }
			};

			var features = ActorFeatures.Detect(JsonDocument.Parse(actor.ToJsonString()).RootElement);

			Assert.Equal(new[]
			{
				"featured", "also-known-as", "shared-inbox", "fep-521a-assertion-method", "property-value", "misskey", "is-cat",
				"indexable", "undiscoverable", "locked", "key:rsa-4096"
			}, features);
		}

		[Fact]
		public void A_bare_actor_reports_nothing_and_junk_is_survived()
		{
			Assert.Empty(ActorFeatures.Detect(JsonDocument.Parse("{\"id\":\"https://a.example/u\",\"type\":\"Person\"}").RootElement));
			Assert.Equal(new[] { "public-key-array" },
				ActorFeatures.Detect(JsonDocument.Parse("{\"publicKey\":[{\"publicKeyPem\":\"not a key\"}]}").RootElement));
			Assert.Empty(ActorFeatures.Detect(JsonDocument.Parse("[1,2]").RootElement));
		}
	}
}