using System.Net;
using System.Net.Http.Headers;
using System.Net.Http.Json;
using Acceptance.Support;
using Bff.Api;
using Reqnroll;
using Xunit;

namespace Acceptance.Steps;

/// <summary>Bindings for <c>BffToegang.feature</c> (S-07). Drives the real BFF over HTTP with a
/// fake domain + projection and locally-minted tokens (ADR-0010). One host per scenario.</summary>
[Binding]
public sealed class BffToegangSteps : IDisposable
{
    private readonly BffAcceptanceHost _host = new();
    private HttpClient _client = null!;
    private string? _token;
    private HttpResponseMessage? _response;

    [Given("a zorgprofessional with a valid DigiD token for BSN \"(.*)\"")]
    public void GivenAValidToken(string bsn)
    {
        _token = BffAcceptanceHost.MintToken(bsn);
        _client = _host.CreateClient();
    }

    [Given("a caller without a token")]
    public void GivenNoToken() => _client = _host.CreateClient();

    [Given("the projection contains a zaak \"(.*)\" for BSN \"(.*)\"")]
    public void GivenTheProjectionContains(string zaakId, string bsn)
    {
        _host.Projection.Entries.Add(new ProjectionEntry(zaakId, "INGEDIEND", bsn, null));
        _client = _host.CreateClient();
    }

    [When("they submit a registration via the BFF")]
    public async Task WhenTheySubmit()
    {
        var request = new HttpRequestMessage(HttpMethod.Post, "/self-service/registrations")
        {
            Content = JsonContent.Create(new { }),
        };
        if (_token is not null)
            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _token);
        _response = await _client.SendAsync(request);
    }

    [When("the openbaar register is queried anonymously")]
    public async Task WhenTheOpenbaarRegisterIsQueried()
        => _response = await _client.GetAsync("/openbaar/register");

    [Then("the BFF accepts it and forwards BSN \"(.*)\" to the domain")]
    public void ThenAcceptedAndForwarded(string bsn)
    {
        Assert.Equal(HttpStatusCode.Accepted, _response!.StatusCode);
        Assert.Equal(bsn, _host.Domain.SubmittedBsn);
    }

    [Then("the BFF rejects it as unauthorized")]
    public void ThenUnauthorized()
    {
        Assert.Equal(HttpStatusCode.Unauthorized, _response!.StatusCode);
        Assert.Null(_host.Domain.SubmittedBsn);
    }

    [Then("the response lists \"(.*)\" without exposing the BSN")]
    public async Task ThenListsWithoutBsn(string zaakId)
    {
        Assert.Equal(HttpStatusCode.OK, _response!.StatusCode);
        var body = await _response.Content.ReadAsStringAsync();
        Assert.Contains(zaakId, body);
        Assert.DoesNotContain("123456782", body);
    }

    public void Dispose()
    {
        _response?.Dispose();
        _client?.Dispose();
        _host.Dispose();
    }
}