#pragma once
#include "FluidSim/Machine.hpp"
#include "FluidSim/Desktop/OrbitCamera.hpp"
#include <SFML/Graphics.hpp>
#include <memory>
#include <optional>

namespace fluidsim::port::desktop {
struct BuilderRay {Vec3 origin,direction;};
BuilderRay builder_ray(const OrbitCamera&,sf::FloatRect,sf::Vector2f);
std::optional<sf::Vector2f> builder_project(const OrbitCamera&,sf::FloatRect,Vec3);
// Returns metres along the ray; OBBs and duct centerlines use the rendered dimensions.
std::optional<float> builder_pick_part(const MachinePart&,BuilderRay,float tolerance=0);
Vec3 builder_rotate_world(Vec3 euler,unsigned axis,float degrees);
struct BuilderPipeLocation {std::size_t segment{};Vec3 local_point;float screen_distance{};};
std::optional<BuilderPipeLocation> builder_pipe_location(const OrbitCamera&,sf::FloatRect,const MachinePart&,sf::Vector2f);
struct MachinePlaybackStats {double simulation_seconds{};std::uint64_t underruns{};std::size_t buffered{};double speed{1};bool paused{};};
enum class WorkshopView {ThreeD,Logic,Split};
class MachineBuilder {
public:
    MachineBuilder();
    ~MachineBuilder();
    const MachineDocument& document()const;
    std::vector<std::uint32_t> selected_parts()const;
    void set_document(MachineDocument,std::filesystem::path source={});
    bool load_file(const std::filesystem::path&);
    void start_test();
    void stop_test();
    bool testing()const;
    MachinePlaybackStats playback_stats()const;
    void set_test_speed(double);
    void pause_test();
    void step_test();
    std::vector<MachineMeasurement> measurements()const;
    bool export_measurements(const std::filesystem::path&);
    bool finished()const;
    bool wants_close_window()const;
    bool handle_event(const sf::Event&,sf::Vector2u);
    void update();
    void draw(sf::RenderWindow&,const sf::Font*);
    static sf::FloatRect viewport(sf::Vector2u);
    sf::FloatRect workspace_viewport(sf::Vector2u)const;
    sf::FloatRect logic_viewport(sf::Vector2u)const;
    WorkshopView workspace_view()const;
    void set_workspace_view(WorkshopView);
    std::uint32_t selected_logic_node()const;
    std::vector<LogicNodeState> logic_values()const;
    sf::FloatRect logic_node_rectangle(std::uint32_t,sf::Vector2u)const;
    sf::Vector2f logic_pin_position(std::uint32_t,const std::string&,sf::Vector2u)const;
    void restore_workspace_preferences();
    const OrbitCamera& camera()const;
private:
    struct Impl;
    std::unique_ptr<Impl> impl_;
};
void run_machine_builder(sf::RenderWindow&,const sf::Font*,const std::filesystem::path& file={},bool play=false);
}