#pragma once

#include <chrono>
#include <optional>
#include <set>
#include <vector>

#include <luma.hpp>

#include <vamp_style.hpp>
#include <vamp_zero/menu.hpp>


namespace vamp_zero {

struct menu_target {
  luma::rect bounds{};
  vamp_zero::menu_action action{};
};

auto menu_layout(luma::rect bounds, vamp_zero::app_state const &state) -> std::vector<vamp_zero::menu_target>;
auto draw_label(luma::draw_context &context, luma::rect bounds, std::string text, std::float32_t size, vamp_style::color color) -> void;
auto draw_menu(luma::draw_context &context, luma::rect bounds, vamp_zero::app_state const &state) -> void;
auto draw_header(luma::draw_context &context, luma::rect bounds, vamp_zero::app_state const &state) -> void;

class menu_touch {
public:
  auto handle(luma::touch_event const &event, luma::rect bounds, vamp_zero::app_state const &state) -> std::optional<vamp_zero::menu_action>;
private:
  std::set<std::int32_t> fingers_{};
  std::optional<vamp_zero::menu_target> target_{};
  luma::point origin_{};
  std::chrono::steady_clock::time_point pressed_{};
};

}