src/engine/user/input.hpp


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#pragma once

#include "DI/auto_wirable.hpp"
#include "interfaces/input.hpp"
#include "interfaces/subscriber.hpp"

#include <climits>
#include <memory>
#include <termios.h>
#include <unordered_map>
#include <vector>

class InputHandler : public IInputHandler, public AutoWirable<IInputHandler, InputHandler>
{
public:
	InputHandler() noexcept = default;

	void listen() const noexcept override;

	void
	subscribe(const Event &event,
			  const std::shared_ptr<ISubscriber<Context>> &subscriber) noexcept override;

	void notify_subscribers(const Event &event,
							const Context &context) const noexcept override;

	void enter_raw_mode() noexcept override;

	void leave_raw_mode() noexcept override;

private:
	std::array<std::vector<std::shared_ptr<ISubscriber<Context>>>, CHAR_MAX> _subscribers;

	std::shared_ptr<termios> _original_termios = nullptr;

	using _SubscribersSizeType = decltype(_subscribers)::size_type;

	static _SubscribersSizeType _event_as_index(const Event &event) noexcept;
};