#include <engine/core/engine_db_provider.hpp>
#include <stdexcept>

MscEngineDBProvider::MscEngineDBProvider() : MscEngineDBProvider(":memory:")
{
}

MscEngineDBProvider::MscEngineDBProvider(const std::string &filepath)
{
    const int result = sqlite3_open(filepath.c_str(), &_db);
    if (result != SQLITE_OK)
    {
        const std::string message = _db != nullptr
                                        ? sqlite3_errmsg(_db)
                                        : "unknown SQLite error";

        if (_db != nullptr)
        {
            sqlite3_close(_db);
            _db = nullptr;
        }

        throw std::runtime_error("Failed to open SQLite database: " + message);
    }
}

MscEngineDBProvider::~MscEngineDBProvider()
{
    if (_db != nullptr)
        sqlite3_close(_db);
}

void MscEngineDBProvider::execute(const std::string &sql)
{
    char *errorMessage = nullptr;
    const int result = sqlite3_exec(_db, sql.c_str(), nullptr, nullptr, &errorMessage);

    if (result == SQLITE_OK)
        return;

    std::string message(errorMessage);
    sqlite3_free(errorMessage);

    throw std::runtime_error("Failed to execute SQL: " + message);
}