using BigRegister.Domain.Documents;

namespace BigRegister.Tests.Domain;

public class DocumentRuleTests
{
  [Fact]
  public void Rejects_unknown_category() =>
      Assert.NotNull(DocumentRules.RejectUpload(null, "application/pdf", 1));

  [Fact]
  public void Rejects_disallowed_type()
  {
    var c = DocumentRules.Find("registratie", "diploma");
    Assert.NotNull(DocumentRules.RejectUpload(c, "text/plain", 1));
  }

  [Fact]
  public void Rejects_oversized_file()
  {
    var c = DocumentRules.Find("registratie", "diploma");
    Assert.NotNull(DocumentRules.RejectUpload(c, "application/pdf", 11L * 1024 * 1024));
  }

  [Fact]
  public void Accepts_valid_file()
  {
    var c = DocumentRules.Find("registratie", "diploma");
    Assert.Null(DocumentRules.RejectUpload(c, "application/pdf", 5L * 1024 * 1024));
  }

  private static IReadOnlyList<string> Ids(string? herkomst, string? taalvaardigheid) =>
      DocumentRules.CategoriesFor("registratie", herkomst, taalvaardigheid).Select(c => c.CategoryId).ToList();

  [Fact]
  public void First_load_has_no_diploma_upload() => // no diploma chosen yet
      Assert.Equal(new[] { "identiteit" }, Ids(null, null));

  [Fact]
  public void Manual_diploma_needs_a_diploma_upload() =>
      Assert.Equal(new[] { "diploma", "identiteit" }, Ids("handmatig", null));

  [Fact]
  public void Duo_diploma_skips_diploma_upload() =>
      Assert.DoesNotContain("diploma", Ids("duo", null));

  [Fact]
  public void Confirmed_dutch_proficiency_requires_taalvaardigheid_proof() =>
      Assert.Contains("taalvaardigheid", Ids("handmatig", "ja"));

  [Fact]
  public void Unconfirmed_proficiency_requires_no_taalvaardigheid_proof() =>
      Assert.DoesNotContain("taalvaardigheid", Ids("handmatig", "nee"));

  [Fact]
  public void Find_resolves_taalvaardigheid_for_upload_validation() =>
      Assert.NotNull(DocumentRules.Find("registratie", "taalvaardigheid"));
}