#ifndef FORTUNA_POOL_H
#define FORTUNA_POOL_H

#include "util.h"

#include <fmt/core.h>
#include <stdexcept>

namespace fortuna {
namespace accumulator {

class Pool {
public:
	Pool() noexcept {};
	Pool(const Pool& pool) = delete; // no copy
	~Pool() noexcept = default;

	auto set_id(unsigned int id) -> void;

	auto get_id() const -> unsigned int;

	auto initialize_pool(unsigned int id) -> void;

	// add entropy contained in a random event of 1 to 32 bytes
	auto add_entropy(const uint source, const std::vector<char>& event) -> int;

	auto get_s_length() const -> uint64_t;

	auto get_s() const -> std::string;

	auto clear_pool() -> void;

protected:
	auto append_s(const std::string& entropy_s) -> void;

private:
	unsigned int pool_id{0};
	std::string s{""};
	uint64_t size{0};

}; // class Pool

} // namespace accumulator
} // namespace fortuna

#endif // FORTUNA_POOL_H