#include "turns/domain/participant.hpp"
#include "turns/domain/disposition.hpp"

#include <catch2/catch_test_macros.hpp>

#include <compare>

#include <glibmm/init.h>

namespace turns::domain::tests
{

  TEST_CASE("A freshly constructed participant")
  {
    auto constexpr constructed_name = "Vana Thistletop";
    auto constexpr constructed_priority = 17;
    auto constexpr constructed_disposition = disposition::friendly;
    auto instance = participant{constructed_name, constructed_priority, constructed_disposition};

    SECTION("can be created")
    {
      REQUIRE(participant::create(constructed_name, constructed_priority, constructed_disposition));
    }

    SECTION("allows access to its disposition")
    {
      SECTION("allowing to get it")
      {
        REQUIRE(instance.disposition() == constructed_disposition);
      }

      SECTION("allowing to get it via a constant object")
      {
        auto const & cref = instance;
        REQUIRE(cref.disposition() == constructed_disposition);
      }

      SECTION("allowing to set it")
      {
        instance.disposition() = disposition::hostile;
        REQUIRE(instance.disposition() == disposition::hostile);
      }
    }

    SECTION("allows access to its name")
    {
      SECTION("allowing to get it")
      {
        REQUIRE(instance.name() == constructed_name);
      }

      SECTION("allowing to get it via a constant object")
      {
        auto const & cref = instance;
        REQUIRE(cref.name() == constructed_name);
      }

      SECTION("allowing to set it")
      {
        instance.name() = "replaced";
        REQUIRE(instance.name() == "replaced");
      }
    }

    SECTION("allows access to its priority")
    {
      SECTION("allowing to get it")
      {
        REQUIRE(instance.priority() == constructed_priority);
      }

      SECTION("allowing to get it via a constant object")
      {
        auto const & cref = instance;
        REQUIRE(cref.priority() == constructed_priority);
      }

      SECTION("allowing to set it")
      {
        instance.priority() = 4;
        REQUIRE(instance.priority() == 4);
      }
    }

    SECTION("can be compared with another participant")
    {
      auto equivalent_instance = participant{"Equivalent", constructed_priority, constructed_disposition};
      auto lesser_instance = participant{"Lesser", constructed_priority - 1, constructed_disposition};
      auto greater_instance = participant{"Greater", constructed_priority + 1, constructed_disposition};

      SECTION("yielding std::partial_ordering::equivalent for itself")
      {
        REQUIRE((instance <=> equivalent_instance) == std::partial_ordering::equivalent);
      }

      SECTION("yielding std::partial_ordering::equivalent for an equivalent participant")
      {
        REQUIRE((instance <=> equivalent_instance) == std::partial_ordering::equivalent);
      }

      SECTION("yielding std::partial_ordering::greater for a lesser participant")
      {
        REQUIRE((instance <=> lesser_instance) == std::partial_ordering::greater);
      }

      SECTION("yielding std::partial_ordering::less for a greater participant")
      {
        REQUIRE((instance <=> greater_instance) == std::partial_ordering::less);
      }
    }
  }

}  // namespace turns::domain::tests