#pragma once

#include <optional>
#include <stdint.h>
#include <vector>

#include "expiring_signature.h"
#include "time_helpers.h"

namespace BareMinimumCrypto {
	using namespace std;
	
	class SigningKey {
		vector <uint8_t> pk;
		vector <uint8_t> sk;
		
	public:
		SigningKey ();
		
		//static optional <SigningKey> generate_to_file
		
		vector <uint8_t> pubkey () const;
		vector <uint8_t> pub_to_msgpack () const;
		
		optional <ExpiringSignature> sign (
			const vector <uint8_t> & payload,
			TimeRange tr
		) const;
		
		optional <ExpiringSignature> sign_key (const SigningKey & k, Instant now) const;
		optional <ExpiringSignature> sign_data (const vector <uint8_t> & v, Instant now) const;
	};
}