using BigRegister.Api.Data;
using BigRegister.Domain.Diplomas;
using BigRegister.Stamdata;

namespace BigRegister.Tests;

/// <summary>
/// The compile-time gate for business-editable stamdata (ADR-0004). The C# compiler
/// already catches shape/type mistakes; these tests catch the referential integrity it
/// can't, so a bad config edit fails the build instead of reaching production.
/// </summary>
public class StamdataValidationTests
{
  [Fact]
  public void Every_seeded_diploma_program_maps_to_a_known_profession()
  {
    // The dangling-reference guard: a seed program with no entry in Professions would
    // silently render "Onbekend" to the user. Fail the build instead.
    foreach (var d in SeedData.Diplomas)
      Assert.True(DiplomaRules.ProfessionFor(d) != "Onbekend",
          $"Diploma program '{d.Opleiding}' has no profession in Stamdata.Professions.");
  }

  [Fact]
  public void Profession_map_has_no_blank_programs_or_professions()
  {
    Assert.All(Professions.ByProgram, kv =>
    {
      Assert.False(string.IsNullOrWhiteSpace(kv.Key), "A profession-map program key is blank.");
      Assert.False(string.IsNullOrWhiteSpace(kv.Value), $"Program '{kv.Key}' maps to a blank profession.");
    });
  }

  [Fact]
  public void Manual_professions_are_non_empty_and_distinct()
  {
    var professions = DiplomaRules.ManualProfessions();
    Assert.NotEmpty(professions);
    Assert.Equal(professions.Count, professions.Distinct().Count());
  }
}