/*
U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
Copyright (C) 2018  Michael Kuc

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, either version 3 of the License, or
(at your option) any later version.

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 <https://www.gnu.org/licenses/>.
*/

#pragma once
#include <map>
#include <array>
#include <string>
#include <fstream>

class Storage
{
public:
	using KeyHandle = uint32_t;
	using KeyCount  = uint32_t;
	using AppParam  = std::array<uint8_t, 32>;
	using PrivKey   = std::array<uint8_t, 32>;
	using PubKey    = std::array<uint8_t, 65>;

	protected:
		Storage() = default;

		static std::string filename;

	public:
		static void init(const std::string &dirPrefix = "");
		static void save();
		static std::map<KeyHandle, AppParam> appParams;
		static std::map<KeyHandle, PrivKey>  privKeys;
		static std::map<KeyHandle, PubKey>   pubKeys;
		static std::map<KeyHandle, KeyCount> keyCounts;
};