// This file is originally from Trantor - Acceptor.h

// Copyright (c) 2016-2021, Tao An.  All rights reserved.

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// modification, are permitted provided that the following conditions
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#pragma once

#include "channel.h"
#include "core/net/inet_address.h"
#include "core/net/socket.h"
#include "core/loops/event_loop.h"
#include <functional>

// Inherit from socket?
// Could be called ServerSocket
// New connection callback -> make it a virtual func?

using NewConnectionCallback = std::function<void(int fd, const InetAddress &)>;
class Acceptor {
protected:
	Acceptor(const Acceptor &) = delete;
	Acceptor &operator=(const Acceptor &) = delete;
	// some uncopyable classes maybe support move constructor....
	Acceptor(Acceptor &&) noexcept(true) = default;
	Acceptor &operator=(Acceptor &&) noexcept(true) = default;

public:
	Acceptor(EventLoop *loop,
			const InetAddress &addr,
			bool reUseAddr = true,
			bool reUsePort = true);
	~Acceptor();
	const InetAddress &addr() const {
		return addr_;
	}
	void setNewConnectionCallback(const NewConnectionCallback &cb) {
		newConnectionCallback_ = cb;
	};
	void listen();

protected:
#ifndef _WIN32
	int idleFd_;
#endif
	Socket sock_;
	InetAddress addr_;
	EventLoop *loop_;
	NewConnectionCallback newConnectionCallback_;
	Channel acceptChannel_;
	void readCallback();
};