using PrivaPub.Api.Mastodon.Controllers;
using PrivaPub.Tests.Support;
using PrivaPub.Tests.Support.Host;

using System.Net;

namespace PrivaPub.Tests.Http
{
	[Trait("Category", "Integration")]
	public sealed class MastodonInstanceTests : IAsyncLifetime
	{
		PrivaPubHost _host;

		public async ValueTask InitializeAsync()
		{
			Assert.SkipUnless(MongoFixture.Enabled, MongoFixture.Skip);
			_host = await PrivaPubHost.Shared();
		}

		public ValueTask DisposeAsync() => ValueTask.CompletedTask;

		[Fact]
		public async Task Both_instance_documents_advertise_mastodon_4_2_and_the_domain()
		{
			var anonymous = _host.Client();

			var v1 = (await anonymous.Get("/api/v1/instance")).Ok();
			Assert.Equal("4.2.0 (compatible; PrivaPub)", v1.Body.Text("version"));
			Assert.Equal(InstanceController.Version, v1.Body.Text("version"));
			Assert.Equal(PrivaPubHost.Host, v1.Body.Text("uri"));
			Assert.True(v1.Body.Flag("registrations"));
			Assert.True(v1.Body.Flag("invites_enabled"));
			Assert.True(v1.Body["stats"].Number("user_count") >= 0);
			Assert.Equal(5000, v1.Body["configuration"]!["statuses"].Number("max_characters"));
			Assert.Equal(4, v1.Body["configuration"]!["polls"].Number("max_options"));
			Assert.Contains("image/jpeg", v1.Body["configuration"]!["media_attachments"]!["supported_mime_types"]!.AsArray().Select(t => t!.GetValue<string>()));
			Assert.Empty(v1.Body["rules"]!.AsArray());
			Assert.Null(v1.Body["contact_account"]);
			Assert.True(v1.Body.AsObject().ContainsKey("contact_account"));

			var v2 = (await anonymous.Get("/api/v2/instance")).Ok();
			Assert.Equal(InstanceController.Version, v2.Body.Text("version"));
			Assert.Equal(PrivaPubHost.Host, v2.Body.Text("domain"));
			Assert.Null(v2.Body["configuration"]!["urls"]!["streaming"]);//nothing streams yet, so nothing is advertised
			Assert.Equal(PrivaPub.Api.Mastodon.Controllers.StatusesController.MaxPins, v2.Body["configuration"]!["accounts"].Number("max_pinned_statuses"));
			Assert.Contains("image/avif", v2.Body["configuration"]!["media_attachments"]!["supported_mime_types"]!.AsArray().Select(t => t!.GetValue<string>()));
			Assert.True(v2.Body["registrations"].Flag("enabled"));
			Assert.True((await anonymous.Get("/nodeinfo/2.1")).Ok().Body.Flag("openRegistrations"));
			Assert.False(v2.Body["configuration"]!["translation"].Flag("enabled"));
			Assert.Equal(7, v2.Body["api_versions"].Number("mastodon"));

			var signedIn = await _host.Mastodon("reader");
			Assert.Equal(InstanceController.Version, (await signedIn.Client.Get("/api/v1/instance")).Ok().Body.Text("version"));
		}

		[Fact]
		public async Task The_instance_side_routes_answer_without_a_login()
		{
			var anonymous = _host.Client();

			Assert.Empty((await anonymous.Get("/api/v1/instance/peers")).Ok().Array);
			Assert.Empty((await anonymous.Get("/api/v1/instance/activity")).Ok().Array);
			Assert.Empty((await anonymous.Get("/api/v1/instance/rules")).Ok().Array);
			var extended = (await anonymous.Get("/api/v1/instance/extended_description")).Ok();
			Assert.StartsWith("<p>", extended.Body.Text("content"));
			Assert.EndsWith("T00:00:00.000Z", extended.Body.Text("updated_at"));
		}

		[Theory]
		[InlineData("/api/v1/custom_emojis")]
		[InlineData("/api/v1/announcements")]
		[InlineData("/api/v1/trends")]
		[InlineData("/api/v1/trends/tags")]
		[InlineData("/api/v1/trends/statuses")]
		[InlineData("/api/v1/trends/links")]
		public async Task Public_stub_routes_answer_empty_lists_to_anyone(string path)
		{
			Assert.Empty((await _host.Client().Get(path)).Ok().Array);
		}

		[Theory]
		[InlineData("/api/v1/filters")]
		[InlineData("/api/v2/filters")]
		[InlineData("/api/v1/lists")]
		[InlineData("/api/v1/suggestions")]
		[InlineData("/api/v2/suggestions")]
		[InlineData("/api/v1/followed_tags")]
		[InlineData("/api/v1/endorsements")]
		[InlineData("/api/v1/featured_tags")]
		[InlineData("/api/v1/scheduled_statuses")]
		public async Task Signed_in_stub_routes_answer_empty_lists(string path)
		{
			var reader = await _host.Mastodon("reader");

			Assert.Empty((await reader.Client.Get(path)).Ok().Array);
			Assert.Equal(HttpStatusCode.Unauthorized, (await _host.Client().Get(path)).Status);
		}

		[Fact]
		public async Task Apps_are_registered_validated_and_verified()
		{
			var anonymous = _host.Client();

			var app = (await anonymous.Post("/api/v1/apps", ("client_name", "tusky-ish"), ("redirect_uris", "urn:ietf:wg:oauth:2.0:oob"), ("scopes", "read write"),
				("website", "https://example.com"))).Ok();

			Assert.Equal("tusky-ish", app.Body.Text("name"));
			Assert.Equal(new[] { "read", "write" }, app.Body["scopes"]!.AsArray().Select(s => s!.GetValue<string>()));
			Assert.False(string.IsNullOrEmpty(app.Body.Text("client_id")));
			Assert.False(string.IsNullOrEmpty(app.Body.Text("client_secret")));
			Assert.Equal(HttpStatusCode.UnprocessableEntity, (await anonymous.Post("/api/v1/apps", ("redirect_uris", "urn:ietf:wg:oauth:2.0:oob"))).Status);
			Assert.Equal(HttpStatusCode.UnprocessableEntity, (await anonymous.Post("/api/v1/apps", ("client_name", "x"), ("redirect_uris", "javascript:alert(1)"))).Status);
			Assert.Equal(HttpStatusCode.UnprocessableEntity, (await anonymous.Post("/api/v1/apps", ("client_name", "x"))).Status);

			var reader = await _host.Mastodon("reader");
			var verified = (await reader.Client.Get("/api/v1/apps/verify_credentials")).Ok();
			Assert.Equal("privapub-tests", verified.Body.Text("name"));
			Assert.Equal(HttpStatusCode.Unauthorized, (await anonymous.Get("/api/v1/apps/verify_credentials")).Status);
		}

		[Fact]
		public async Task Preferences_follow_the_persona_and_push_has_no_subscription()
		{
			var reader = await _host.Mastodon("reader", scopes: "read write follow push");
			(await reader.Client.Patch("/api/v1/accounts/update_credentials", ("source[privacy]", "unlisted"), ("source[sensitive]", "true"))).Ok();

			var preferences = (await reader.Client.Get("/api/v1/preferences")).Ok();

			Assert.Equal("unlisted", preferences.Body.Text("posting:default:visibility"));
			Assert.True(preferences.Body.Flag("posting:default:sensitive"));
			Assert.False(preferences.Body.Flag("reading:expand:spoilers"));
			var push = await reader.Client.Get("/api/v1/push/subscription");
			Assert.Equal(HttpStatusCode.NotFound, push.Status);
			Assert.Equal("Record not found", push.Body.Text("error"));
		}
	}
}