#include <mbgl/layermanager/fill_layer_factory.hpp>

#include <mbgl/renderer/buckets/fill_bucket.hpp>
#include <mbgl/renderer/layers/render_fill_layer.hpp>
#include <mbgl/style/layers/fill_layer.hpp>
#include <mbgl/style/layers/fill_layer_impl.hpp>

namespace mbgl {

const style::LayerTypeInfo* FillLayerFactory::getTypeInfo() const noexcept {
    return style::FillLayer::Impl::staticTypeInfo();
}

std::unique_ptr<style::Layer> FillLayerFactory::createLayer(const std::string& id, const style::conversion::Convertible& value) noexcept {
    optional<std::string> source = getSource(value);
    if (!source) {
        return nullptr;
    }

    return std::unique_ptr<style::Layer>(new style::FillLayer(id, *source));
}

std::unique_ptr<Layout>
FillLayerFactory::createLayout(const LayoutParameters& parameters,
                               std::unique_ptr<GeometryTileLayer> layer,
                               const std::vector<Immutable<style::LayerProperties>>& group) noexcept {
    using namespace style;
    using LayoutTypeUnsorted = PatternLayout<FillBucket, FillLayerProperties, FillPattern, FillLayoutProperties>;
    using LayoutTypeSorted =
        PatternLayout<FillBucket, FillLayerProperties, FillPattern, FillLayoutProperties, FillSortKey>;
    auto layerProperties = staticImmutableCast<FillLayerProperties>(group.front());
    if (layerProperties->layerImpl().layout.get<FillSortKey>().isUndefined()) {
        return std::make_unique<LayoutTypeUnsorted>(parameters.bucketParameters, group, std::move(layer), parameters);
    }
    return std::make_unique<LayoutTypeSorted>(parameters.bucketParameters, group, std::move(layer), parameters);
}

std::unique_ptr<RenderLayer> FillLayerFactory::createRenderLayer(Immutable<style::Layer::Impl> impl) noexcept {
    assert(impl->getTypeInfo() == getTypeInfo());
    return std::make_unique<RenderFillLayer>(staticImmutableCast<style::FillLayer::Impl>(impl));
}

} // namespace mbgl