#include "render_3D/Datoviz_Visuals.h"

#include <gtest/gtest.h>

#include <type_traits>

namespace renderive::render_3d {
namespace {

template <class Visual, class Item>
void exercise(Item item) {
    static_assert(std::derived_from<Visual, Renderable>);
    auto visual = typename Visual::Builder{}.build(std::vector<Item>{item});
    ASSERT_NE(visual, nullptr);
    EXPECT_EQ(visual->item_count(), 1U);
    const auto revision = visual->data_revision();
    visual->edit_items([](auto& items) { items.push_back(items.front()); });
    EXPECT_EQ(visual->item_count(), 2U);
    EXPECT_GT(visual->data_revision(), revision);
    const auto observation = visual->observation();
    EXPECT_EQ(observation.item_count, 2U);
    EXPECT_EQ(observation.data_revision, visual->data_revision());
}

TEST(DatovizVisualFamilies, EveryPublicFamilyUsesRenderableStorage) {
    exercise<Splat_Visual>(Splat{});
    exercise<Pixel_Visual>(Pixel{});
    exercise<Marker_Visual>(Marker{});
    exercise<Sphere_Visual>(Sphere{});
    exercise<Segment_Visual>(Segment{.end = {1, 0, 0}});
    exercise<Vector_Visual>(Vector_Glyph{});
    exercise<Primitive_Visual>(Primitive_Vertex{});
    exercise<Mesh_Visual>(Mesh_Vertex{});
    exercise<Path_Visual>(Path_Vertex{});
    exercise<Image_Visual>(Image{});
    exercise<Labels_Visual>(Label{});
    exercise<Glyph_Visual>(Glyph{});
    exercise<Text_Visual>(Text_Label{.text = "Renderive"});
    exercise<Volume_Visual>(Voxel{});
}

TEST(DatovizVisualFamilies, StateValidationAndBuilderPropertiesAreShared) {
    auto volume = Volume_Visual::Builder{}
                      .set<&Volume_State::field_width>(4U)
                      .set<&Volume_State::field_height>(4U)
                      .set<&Volume_State::field_depth>(4U)
                      .build(std::vector<Voxel>(64));
    ASSERT_NE(volume, nullptr);
    EXPECT_EQ(volume->get<&Volume_State::field_depth>(), 4U);
    EXPECT_THROW((Volume_Visual::Builder{}
                      .set<&Volume_State::field_width>(4U)
                      .build()),
                 std::invalid_argument);
}

} // namespace
} // namespace renderive::render_3d