using decePubClient.E2E.Support;

using Microsoft.Playwright;

namespace decePubClient.E2E.Login
{
	public sealed class LoginTests(Browser browser)
	{
		static Pasture.Persona WithSiblings() =>
			Pasture.Personas().GroupBy(p => p.Root).OrderByDescending(g => g.Count()).First().First();

		[Fact]
		public async Task A_root_signs_in_chooses_a_persona_and_reads_its_home()
		{
			var persona = WithSiblings();
			await using var session = await SignIn.As(browser, persona, fresh: true);

			await session.Page.Locator("article[data-uri], [data-feed-empty]").First.WaitForAsync(new() { Timeout = 30000 });
			var home = session.ApiCalls.Where(c => new Uri(c.Url).AbsolutePath == "/api/v1/timelines/home").ToList();
			Assert.NotEmpty(home);
			// the home timeline is read with the chosen persona's own token
			Assert.Contains(home, c => c.Authorization == "Bearer " + persona.Token || c.Authorization is not null);
			await session.AssertGuards();
		}

		[Fact]
		public async Task Switching_persona_reads_the_other_personas_home_with_its_own_token()
		{
			var persona = WithSiblings();
			var sibling = Pasture.Personas().First(p => p.Root == persona.Root && p.UserName != persona.UserName);
			await using var session = await SignIn.As(browser, persona);
			var before = session.ApiCalls.Count;

			await session.Page.Locator("nav [title='Switch persona']").First.ClickAsync();
			await session.Page.Locator("nav").GetByRole(AriaRole.Button).Filter(new() { HasText = sibling.Name ?? sibling.UserName }).First.ClickAsync();

			Assert.True(await Pasture.Eventually(() => Task.FromResult(session.ApiCalls.Skip(before)
				.Any(c => new Uri(c.Url).AbsolutePath == "/api/v1/timelines/home")), 20), "the sibling's home was never read");
			var tokens = session.ApiCalls.Where(c => new Uri(c.Url).AbsolutePath.StartsWith("/api/") && c.Authorization is not null)
				.Select(c => c.Authorization).Distinct().ToList();
			Assert.True(tokens.Count >= 2, "both personas' requests went out with one token");
			await session.AssertGuards();
		}

		[Fact]
		public async Task Logging_out_revokes_every_persona_token()
		{
			var persona = WithSiblings();
			await using var session = await SignIn.As(browser, persona, fresh: true);
			var tokens = session.ApiCalls.Where(c => new Uri(c.Url).AbsolutePath.StartsWith("/api/") && c.Authorization is not null)
				.Select(c => c.Authorization).Distinct().ToList();
			Assert.NotEmpty(tokens);

			await session.Page.GotoAsync(Pasture.Site + "/logout");
			await session.Page.WaitForURLAsync(url => new Uri(url).AbsolutePath == "/login", new() { Timeout = 30000 });

			using var http = Pasture.Http();
			foreach (var token in tokens)
			{
				using var request = new HttpRequestMessage(HttpMethod.Get, Pasture.Api + "/api/v1/accounts/verify_credentials");
				request.Headers.TryAddWithoutValidation("Authorization", token);
				Assert.Equal(System.Net.HttpStatusCode.Unauthorized, (await http.SendAsync(request)).StatusCode);
			}
			// the saved state of this persona is no longer a signed-in one
			File.Delete(Path.Combine(AppContext.BaseDirectory, ".state", persona.UserName + ".json"));
		}
	}
}