#pragma once

#include <mbgl/programs/program.hpp>
#include <mbgl/programs/attributes.hpp>
#include <mbgl/programs/uniforms.hpp>
#include <mbgl/shaders/fill.hpp>
#include <mbgl/shaders/fill_pattern.hpp>
#include <mbgl/shaders/fill_outline.hpp>
#include <mbgl/shaders/fill_outline_pattern.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/util/mat4.hpp>
#include <mbgl/util/size.hpp>
#include <mbgl/style/layers/fill_layer_properties.hpp>

#include <string>

namespace mbgl {

class ImagePosition;
class UnwrappedTileID;
class TransformState;
template <class> class Faded;

using FillLayoutAttributes = PositionOnlyLayoutAttributes;

struct FillUniforms : gl::Uniforms<
    uniforms::u_matrix,
    uniforms::u_world>
{};

struct FillPatternUniforms : gl::Uniforms<
    uniforms::u_matrix,
    uniforms::u_world,
    uniforms::u_texsize,
    uniforms::u_scale,
    uniforms::u_fade,
    uniforms::u_image,
    uniforms::u_pixel_coord_upper,
    uniforms::u_pixel_coord_lower>
{
    static Values values(mat4 matrix,
                         Size framebufferSize,
                         Size atlasSize,
                         const CrossfadeParameters& crossfade,
                         const UnwrappedTileID&,
                         const TransformState&,
                         const float pixelRatio);
};

class FillProgram : public Program<
    shaders::fill,
    gl::Triangle,
    FillLayoutAttributes,
    FillUniforms,
    style::FillPaintProperties>
{
public:
    using Program::Program;

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

class FillPatternProgram : public Program<
    shaders::fill_pattern,
    gl::Triangle,
    FillLayoutAttributes,
    FillPatternUniforms,
    style::FillPaintProperties>
{
public:
    using Program::Program;
};

class FillOutlineProgram : public Program<
    shaders::fill_outline,
    gl::Line,
    FillLayoutAttributes,
    FillUniforms,
    style::FillPaintProperties>
{
public:
    using Program::Program;
};

class FillOutlinePatternProgram : public Program<
    shaders::fill_outline_pattern,
    gl::Line,
    FillLayoutAttributes,
    FillPatternUniforms,
    style::FillPaintProperties>
{
public:
    using Program::Program;
};

using FillLayoutVertex = FillProgram::LayoutVertex;
using FillAttributes = FillProgram::Attributes;

class FillLayerPrograms final : public LayerTypePrograms {
public:
    FillLayerPrograms(gl::Context& context, const ProgramParameters& programParameters)
        : fill(context, programParameters),
          fillPattern(context, programParameters),
          fillOutline(context, programParameters),
          fillOutlinePattern(context, programParameters) {}
    ProgramMap<FillProgram> fill;
    ProgramMap<FillPatternProgram> fillPattern;
    ProgramMap<FillOutlineProgram> fillOutline;
    ProgramMap<FillOutlinePatternProgram> fillOutlinePattern;
};

} // namespace mbgl