#include "sodium/crypto_sign.h"
#include <catch2/catch_test_macros.hpp>
#include <protocol/protocol.hxx>
#include <sodium.h>

TEST_CASE("SignedMessage", "[protocol]") {
      SECTION("sodium init") REQUIRE(sodium_init() >= 0);

      unsigned char pub_key[crypto_sign_PUBLICKEYBYTES];
      unsigned char priv_key[crypto_sign_SECRETKEYBYTES];
      crypto_sign_keypair(pub_key, priv_key);

      auto msg = Protocol::SignedMessage(pub_key, priv_key, "Hello, world!");
      std::vector<uint8_t> toBeSigned;
      toBeSigned.reserve(sizeof(msg.sender_key_fingerprint) +
                         msg.plaintext.size() + sizeof(msg.timestamp));

      toBeSigned.insert(toBeSigned.cend(), msg.sender_key_fingerprint,
                        msg.sender_key_fingerprint +
                            sizeof(msg.sender_key_fingerprint));
      toBeSigned.insert(toBeSigned.cend(), msg.plaintext.data(),
                        msg.plaintext.data() + msg.plaintext.length());
      auto timestamp_bytes = reinterpret_cast<const uint8_t *>(&msg.timestamp);
      toBeSigned.insert(toBeSigned.cend(), timestamp_bytes,
                        timestamp_bytes + sizeof(msg.timestamp));

      SECTION("signed message") {
            REQUIRE(crypto_sign_verify_detached(
                        msg.sender_key_signature, toBeSigned.data(),
                        toBeSigned.size(), pub_key) == 0);
      }
}