#include "assert.hpp"
#include "../include/Database.hpp"
#include "../include/Group.hpp"
#include "../include/LocalUser.hpp"
#include "../include/Encryption.hpp"
#include "../include/Hash.hpp"
#include <vector>
#include <chrono>
#include <thread>

using namespace std;
using namespace chrono_literals;
using namespace odhtdb;

void testHash()
{
    Hash hash("odhtdb", 6);
    assertEquals<string>("a7b30ec8ab92de60e551b26bb8f78d315697f84dd7f5549a143477e095ec934f", hash.toString());
    printf("hash of 'odhtdb' is: a7b30ec8ab92de60e551b26bb8f78d315697f84dd7f5549a143477e095ec934f\n");
}

void testSignData(LocalUser *localUser)
{
    std::string publicKeyStr = localUser->getPublicKey().toString();
    printf("Local user public key: %s\n", publicKeyStr.c_str());
    
    std::string privateKeyStr = localUser->getPrivateKey().toString();
    printf("Local user private key: %s\n", privateKeyStr.c_str());
    
    string expectedUnsignedData = "hello, world!";
    string signedData = localUser->getPrivateKey().sign(DataView((void*)expectedUnsignedData.data(), expectedUnsignedData.size()));
    assertEquals(SIGNED_HASH_SIZE + expectedUnsignedData.size(), signedData.size());
    
    string unsignedData = localUser->getPublicKey().unsign(DataView((void*)signedData.data(), signedData.size()));
    assertEquals(expectedUnsignedData, unsignedData);
    
    try
    {
        Signature::KeyPair anotherKeyPair;
        anotherKeyPair.getPublicKey().unsign(DataView((void*)signedData.data(), signedData.size()));
        fail("Expected unsign to fail since the data was not signed with the private key matching given public key");
    }
    catch (UnsignWrongKeyException &e)
    {
        
    }
    catch (exception &e)
    {
        string errMsg = "Expected unsign to fail with UnsignWrongKeyException, fail reason: ";
        errMsg += e.what();
        fail(errMsg);
    }
    
    try
    {
        Signature::KeyPair anotherKeyPair;
        anotherKeyPair.getPublicKey().unsign(DataView((void*)signedData.data(), 3));
        fail("Expected unsign to fail since the (signed) data is too small to have been signed (signed hash is 64 bytes)");
    }
    catch (UnsignInvalidSizeException &e)
    {
        
    }
    catch (exception &e)
    {
        string errMsg = "Expected unsign to fail with UnsignInvalidSizeException, fail reason: ";
        errMsg += e.what();
        fail(errMsg);
    }
}

void testEncryption()
{
    const char *message = "hello, world!";
    const unsigned long long messageLength = 13;
    Encryption encryption(DataView((void*)message, messageLength));
    
    Decryption decryption(encryption.getCipherText(), encryption.getNonce(), encryption.getKey());
    assertEquals<unsigned long long>(messageLength, decryption.getDecryptedText().size);
    assertEquals(0, strncmp(message, (const char*)decryption.getDecryptedText().data, messageLength));
}

int main()
{
    printf("Starting tests...\n");
    LocalUser *localUser = LocalUser::create(Signature::KeyPair(), "dec05eba");
    testSignData(localUser);
    testEncryption();
    testHash();
    
    // TODO: Setup local bootstrap node for tests
    Database database("bootstrap.ring.cx", 4222, "storage");
    auto databaseCreateResponse = database.create("dec05eba", "latenight");
    const char *data = "hello, world!";
    database.add(databaseCreateResponse, DataView{ (void*)data, strlen(data) });
    database.commit();
    
    database.seed(databaseCreateResponse->getRequestHash(), databaseCreateResponse->getNodeEncryptionKey());
    auto start = chrono::high_resolution_clock::now();
    while(chrono::high_resolution_clock::now() - start < 3s)
    {
        this_thread::sleep_for(10ms);
    }
    
    return 0;
}