using BigRegister.Api.Contracts;
using BigRegister.Domain.Letters;

namespace BigRegister.Tests.Domain;

public class OrgTemplateRuleTests
{
  private static OrgTemplateDto Draft(
      string orgName = "BIG-register",
      string signatureName = "J. Jansen",
      MarginsDto? margins = null) =>
      new(
          SubOrgId: "registers", OrgName: orgName, ReturnAddress: "Postbus 1, Den Haag",
          LogoDocumentId: null, FooterContact: "info@example.nl", FooterLegal: "KvK 12345678",
          SignatureName: signatureName, SignatureRole: "Manager", SignatureClosing: "Met vriendelijke groet",
          Margins: margins ?? new MarginsDto(20, 20, 20, 20));

  [Fact]
  public void Accepts_a_complete_draft_within_the_margin_bounds() =>
      Assert.Null(OrgTemplateRules.RejectDraft(Draft()));

  [Fact]
  public void Rejects_a_missing_organisation_name() =>
      Assert.NotNull(OrgTemplateRules.RejectDraft(Draft(orgName: "")));

  [Fact]
  public void Rejects_a_missing_signature_name() =>
      Assert.NotNull(OrgTemplateRules.RejectDraft(Draft(signatureName: "   ")));

  [Theory]
  [InlineData(9, 20, 20, 20)]   // top just under the minimum
  [InlineData(20, 51, 20, 20)]  // right just over the maximum
  [InlineData(20, 20, 9, 20)]   // bottom under the minimum
  [InlineData(20, 20, 20, 51)]  // left over the maximum
  public void Rejects_a_margin_outside_the_allowed_range(int top, int right, int bottom, int left) =>
      Assert.NotNull(OrgTemplateRules.RejectDraft(Draft(margins: new MarginsDto(top, right, bottom, left))));

  [Theory]
  [InlineData(10, 10, 10, 10)]  // the minimum, inclusive
  [InlineData(50, 50, 50, 50)]  // the maximum, inclusive
  public void Accepts_margins_on_the_boundary(int top, int right, int bottom, int left) =>
      Assert.Null(OrgTemplateRules.RejectDraft(Draft(margins: new MarginsDto(top, right, bottom, left))));
}