#pragma once

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

#include <array>
#include <climits>
#include <memory>
#include <termios.h>
#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>>>,
			   static_cast<std::size_t>(CHAR_MAX * 2U)>
		_subscribers;

	std::shared_ptr<termios> _original_termios = nullptr;

	using SubscribersSizeType = decltype(_subscribers)::size_type;

	static auto _event_as_index(const Event &event) noexcept -> SubscribersSizeType;
};