/**
 * @file  Database.cpp
 * @brief Management of a SQLite Database Connection.
 *
 * Copyright (c) 2012 Sebastien Rombauts (sebastien.rombauts@gmail.com)
 *
 * Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
 * or copy at http://opensource.org/licenses/MIT)
 */
#include "Database.h"

#include "Statement.h"
#include "Column.h"

namespace SQLite
{

// Open the provided database UTF-8 filename.
Database::Database(const char* apFilename, const int aFlags /*= SQLITE_OPEN_READONLY*/) : // throw(SQLite::Exception)
    mpSQLite(NULL),
    mFilename(apFilename)
{
    int ret = sqlite3_open_v2(apFilename, &mpSQLite, aFlags, NULL);
    if (SQLITE_OK != ret)
    {
        std::string strerr = sqlite3_errmsg(mpSQLite);
        sqlite3_close(mpSQLite);
        throw SQLite::Exception(strerr);
    }
}

// Close the SQLite database connection.
Database::~Database(void) throw() // nothrow
{
    int ret = sqlite3_close(mpSQLite);
    if (SQLITE_OK != ret)
    {
        // Never throw an exception in a destructor
        //std::cout << sqlite3_errmsg(mpSQLite);
    }
}

// Shortcut to execute one or multiple SQL statements without results.
int Database::exec(const char* apQueries) // throw(SQLite::Exception);
{
    int ret = sqlite3_exec(mpSQLite, apQueries, NULL, NULL, NULL);
    check(ret);

    // Return the number of changes made by those SQL statements
    return sqlite3_changes(mpSQLite);
}

// Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
void Database::check(const int aRet) const // throw(SQLite::Exception)
{
    if (SQLITE_OK != aRet)
    {
        throw SQLite::Exception(sqlite3_errmsg(mpSQLite));
    }
}

};  // namespace SQLite