#pragma once

#include <mbgl/programs/program.hpp>
#include <mbgl/programs/attributes.hpp>
#include <mbgl/programs/hillshade_prepare_program.hpp>
#include <mbgl/programs/uniforms.hpp>
#include <mbgl/programs/textures.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/style/layers/hillshade_layer_properties.hpp>

namespace mbgl {

namespace uniforms {
MBGL_DEFINE_UNIFORM_SCALAR(Color, shadow);
MBGL_DEFINE_UNIFORM_SCALAR(Color, highlight);
MBGL_DEFINE_UNIFORM_SCALAR(Color, accent);
MBGL_DEFINE_UNIFORM_VECTOR(float, 2, light);
MBGL_DEFINE_UNIFORM_VECTOR(float, 2, latrange);
} // namespace uniforms

class HillshadeProgram final : public Program<HillshadeProgram,
                                              shaders::BuiltIn::HillshadeProgram,
                                              gfx::PrimitiveType::Triangle,
                                              TypeList<attributes::pos, attributes::texture_pos>,
                                              TypeList<uniforms::matrix,
                                                       uniforms::highlight,
                                                       uniforms::shadow,
                                                       uniforms::accent,
                                                       uniforms::light,
                                                       uniforms::latrange>,
                                              TypeList<textures::image>,
                                              style::HillshadePaintProperties> {
public:
    static constexpr std::string_view Name{"HillshadeProgram"};
    const std::string_view typeName() const noexcept override { return Name; }

    using Program::Program;

    static LayoutVertex layoutVertex(Point<int16_t> p, Point<uint16_t> t) {
        return LayoutVertex{{{p.x, p.y}}, {{t.x, t.y}}};
    }
};

using HillshadeLayoutVertex = HillshadeProgram::LayoutVertex;
using HillshadeAttributes = HillshadeProgram::AttributeList;

} // namespace mbgl