/*
 * This file is part of the Monero P2Pool <https://github.com/SChernykh/p2pool>
 * Copyright (c) 2021-2024 SChernykh <https://github.com/SChernykh>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "uv_util.h"

namespace p2pool {

class p2pool_api
{
public:
	p2pool_api(const std::string& api_path, const bool local_stats);
	~p2pool_api();

	enum class Category {
		GLOBAL,
		NETWORK,
		POOL,
		LOCAL,
	};

	// cppcheck-suppress functionConst
	void on_stop();

	template<typename T>
	void set(Category category, const char* filename, T&& callback) { dump_to_file_async_internal(category, filename, Callback<void, log::Stream&>::Derived<T>(std::move(callback))); }

private:
	void create_dir(const std::string& path);

	static void on_dump_to_file(uv_async_t* async) { reinterpret_cast<p2pool_api*>(async->data)->dump_to_file(); }

	struct DumpFileWork {
		uv_fs_t req;
		int fd;

		std::string name;
		std::string tmp_name;
		std::vector<char> buf;
	};

	void dump_to_file_async_internal(Category category, const char* filename, Callback<void, log::Stream&>::Base&& callback);
	void dump_to_file();
	static void on_fs_open(uv_fs_t* req);
	static void on_fs_write(uv_fs_t* req);
	static void on_fs_close(uv_fs_t* req);
	static void on_fs_rename(uv_fs_t* req);
	static void on_fs_error_cleanup(uv_fs_t* req);

	std::string m_apiPath;
	std::string m_networkPath;
	std::string m_poolPath;
	std::string m_localPath;

	uv_mutex_t m_dumpDataLock;
	unordered_map<std::string, std::vector<char>> m_dumpData;

	uv_async_t m_dumpToFileAsync;

	uint64_t m_counter;
};

} // namespace p2pool