using System.Net.Http.Json;
using System.Text.Json.Nodes;

using decePubClient.E2E.Support;

using Microsoft.Playwright;

namespace decePubClient.E2E.Actions
{
	// Administration as the pasture's administrator (pastureroot, whom the scenarios make): a server blocked for everyone
	// and unblocked, the federation statistics, and the reports moderators handle; each change checked on /clientapi
	public sealed class AdministrationTests(Browser browser)
	{
		const string Root = "pastureroot";
		const string Password = "Pasture-Pass-1!";
		static readonly Pasture.Persona Admin = new("alice", "alice", Root, Password, null, null, null);

		static async Task<JsonNode> AsAdmin(string path)
		{
			using var http = Pasture.Http();
			var login = await http.PostAsJsonAsync($"{Pasture.Api}/clientapi/user/login", new { userName = Root, password = Password });
			login.EnsureSuccessStatusCode();
			var jwt = (await login.Content.ReadFromJsonAsync<JsonObject>())!["token"]!.GetValue<string>();
			using var request = new HttpRequestMessage(HttpMethod.Get, Pasture.Api + path);
			request.Headers.Authorization = new("Bearer", jwt);
			using var response = await http.SendAsync(request);
			response.EnsureSuccessStatusCode();
			return JsonNode.Parse(await response.Content.ReadAsStringAsync());
		}

		static async Task<ILocator> Open(IPage page, string section)
		{
			await page.GotoAsync($"{Pasture.Site}/administration");
			var header = page.Locator(".collapse-title", new() { HasText = section }).First;
			await header.ClickAsync();
			return header.Locator("xpath=..");
		}

		[Fact]
		public async Task A_server_is_blocked_for_everyone_and_unblocked()
		{
			const string server = "instance-block-by-e2e.example";
			await using var session = await SignIn.As(browser, Admin);
			var page = session.Page;
			await Results.Cell("client.admin.server-block", "privapub", Root, async () =>
			{
				var panel = await Open(page, "Blocked servers");
				var blocks = panel.Locator("[data-server-blocks]");
				await blocks.WaitForAsync(new() { Timeout = 30000 });
				await blocks.Locator("[data-server-block-domain]").FillAsync(server);
				await blocks.GetByRole(AriaRole.Button, new() { Name = "Block server" }).ClickAsync();
				var row = blocks.Locator($"[data-server-block='{server}']");
				await Assertions.Expect(row).ToContainTextAsync("Suspended", new() { Timeout = 15000 });
				Assert.Contains((await AsAdmin("/clientapi/admin/domainblocks/list"))!.AsArray(), b => b!["domain"]!.GetValue<string>() == server);

				await row.GetByRole(AriaRole.Button, new() { Name = "Unblock" }).ClickAsync();
				await Assertions.Expect(row).ToHaveCountAsync(0, new() { Timeout = 15000 });
				Assert.DoesNotContain((await AsAdmin("/clientapi/admin/domainblocks/list"))!.AsArray(), b => b!["domain"]!.GetValue<string>() == server);
				await session.AssertGuards();
			}, page);
		}

		[Fact]
		public async Task The_federation_statistics_and_the_reports_are_shown()
		{
			await using var session = await SignIn.As(browser, Admin);
			var page = session.Page;
			await Results.Cell("client.admin.statistics", "privapub", Root, async () =>
			{
				var panel = await Open(page, "Statistics");
				await Assertions.Expect(panel.Locator("[data-statistics-overview]")).ToBeVisibleAsync(new() { Timeout = 30000 });
				var expected = (await AsAdmin("/clientapi/admin/statistics/hosts?days=30&sort=traffic&page=1&limit=50"))!["hosts"]!.AsArray()
					.Select(h => h!["host"]!.GetValue<string>()).Take(5).ToList();
				Assert.NotEmpty(expected);
				foreach (var host in expected)
					await Assertions.Expect(panel.Locator($"[data-statistics-host='{host}']")).ToHaveCountAsync(1, new() { Timeout = 15000 });

				var reports = await Open(page, "Reports");
				await Assertions.Expect(reports.Locator("[data-reports]")).ToBeVisibleAsync(new() { Timeout = 30000 });
				var open = (await AsAdmin("/clientapi/moderator/reports?resolved=false"))!.AsArray().Count;
				await Assertions.Expect(reports.Locator("[data-report-id]")).ToHaveCountAsync(open, new() { Timeout = 15000 });
				await session.AssertGuards();
			}, page);
		}
	}
}