using System.Net.Http.Json;
using BigRegister.Api.Zgw;
using Microsoft.Extensions.Logging.Abstractions;

namespace BigRegister.Tests;

/// <summary>
/// The opt-in diagnostic handler (see ZgwDiagnosticHandler's own doc comment) must be inert on
/// the request/response — it only observes. This doesn't catch the flake itself (that needs a
/// real repro with ZGW_DEBUG_HTTP=1), just proves the hook doesn't alter what's sent or break
/// the response passthrough.
/// </summary>
public class ZgwDiagnosticHandlerTests
{
  [Fact]
  public async Task Passes_request_and_response_through_unchanged()
  {
    var stub = new ZgwStubHandler(_ => """{ "ok": true }""");
    var diagnostic = new ZgwDiagnosticHandler(NullLogger<ZgwDiagnosticHandler>.Instance) { InnerHandler = stub };
    using var client = new HttpClient(diagnostic);

    var response = await client.PostAsJsonAsync("https://oz.example/zaken", new { foo = "bar" });

    Assert.True(response.IsSuccessStatusCode);
    Assert.Single(stub.Requests);
    Assert.Contains("\"foo\":\"bar\"", stub.BodyOf("https://oz.example/zaken"));
  }
}