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/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef DATABASE_HPP
#define DATABASE_HPP
#include <ctime>
#include <iostream>
#include <string>
#include <sqlite3.h>
#include <log4cxx/logger.h>
namespace usdx
{
class StatResult;
/* Wrapper for statistic database */
class StatDatabase
{
private:
static log4cxx::LoggerPtr log;
/**
* Filename of the opened statistic database.
*/
std::string filename;
/**
* Internal reference to the sqlite database handle of the open
* sqlite database.
*/
sqlite3 *database;
/**
* Wrapper arround the sqlite_prepare_v2 function with propper
* logging and exception throwing on error.
*
* @param sqlStatement SQL Statement for preparing to
* sqlite3_stmt
* @return Pointner to a sqlite3_stmt used for binding
* parameters and excuting the statement. Need to be freed
* with sqlite3_finalize.
*/
sqlite3_stmt *sqlite_prepare(const std::string sqlStatement);
/**
* Just a quick alias for sqlite_prepare, sqlite3_step and
* sqlite3_finalize.
*/
void sqlite_exec(const std::string sqlStatement);
/**
* Check if the given table exists in the database.
*
* @param table Name to check if exists
* @return true, if table exists, false if not
*/
const bool sqlite_table_exists(const std::string table);
/**
* Check if the given table has the given column by name.
*
* @param table Table to examine
* @param column Name of the column to check if exists
* @return true, if column exists in that table, false if not
*/
const bool sqlite_table_contains_column(const std::string table, const std::string column);
// Singleton
StatDatabase(std::string filename);
static StatDatabase* instance;
protected:
int get_version(void);
void set_version(int version);
public:
static StatDatabase* get_instance();
~StatDatabase(void);
/**
* Opens a sqlite3 database from the given path and initializes
* that class by saving a reference to the open database handle.
*
* @param filename Filename of a database to open.
*/
static void init(const std::string filename);
/* void read_score(Song *song);
void add_score(Song *song, int level, const char* name, int score);
void write_score(Song *song);
*/
const std::string get_filename(void);
StatResult* get_stats(StatResult *list, short count, unsigned int page, bool reversed);
// unsigned int get_total_entrys(StatType type);
/**
* Get the timestamp of the last reset of the database.
*
* @return Timestamp
*/
time_t get_stat_reset(void);
/**
* Convert a timestamp to a data representation in a string.
*
* @param time Pointer to a char buffer that will contain the
* the date string.
* @param max Maximum bytes that could be written to the buffer.
* @param timestamp Timestamp to convert to the string.
* @return Pointer to the buffer supplied as first parameter,
* containing:
* - only a '\\0' at first position if timestamp was
* 0 or if max was to short to contain the date
* - the date string with the terminating '\\0'
*/
char* format_date(char* time, size_t max, time_t timestamp);
#ifdef STAT_DATABASE_TEST
// for testing private members
friend class StatDatabaseTest;
#endif
};
/* Element for linked list with pointer to next */
class StatResult
{
private:
StatResult() {};
StatResult(const StatResult &source) {};
void operator=(const StatResult &source) {};
protected:
StatResult *next;
public:
virtual ~StatResult(void);
};
class StatResultBestScores : StatResult
{
private:
char *singer;
unsigned short score;
unsigned short difficulty;
char *song_artist;
char *song_title;
time_t date;
public:
StatResultBestScores(
char *singer,
unsigned short score,
unsigned short difficulty,
char* song_artist,
char* song_title,
time_t date);
~StatResultBestScores(void);
};
class StatResultBestSingers : StatResult
{
private:
char *singer;
unsigned short average_score;
public:
StatResultBestSingers(char *singer, unsigned short average_score);
~StatResultBestSingers(void);
};
class StatResultMostSungSong : StatResult
{
private:
char *song_artist;
char *song_title;
unsigned short times_sung;
public:
StatResultMostSungSong(char* song_artist, char* song_title, unsigned short times_sung);
~StatResultMostSungSong(void);
};
class StatResultMostSungBand : StatResult
{
private:
char *song_artist;
unsigned short times_sung;
public:
StatResultMostSungBand(char* song_artist, unsigned short times_sung);
~StatResultMostSungBand(void);
};
};
#endif
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