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#include "database.h"
#include <sqlite3.h>
#include <stdexcept>
database::database(std::string path)
{
if (sqlite3_open_v2(
path.c_str(),
&ppdb_,
SQLITE_OPEN_READONLY,
NULL) != SQLITE_OK)
{
// We still have to free the resources allocated. In the event that
// allocation failed, ppdb will be null and sqlite3_close_v2 will just
// ignore it.
std::string errmsg(sqlite3_errmsg(ppdb_));
sqlite3_close_v2(ppdb_);
throw std::logic_error(errmsg);
}
}
database::database(database&& other) : database()
{
swap(*this, other);
}
database& database::operator=(database&& other)
{
swap(*this, other);
return *this;
}
void swap(database& first, database& second)
{
std::swap(first.ppdb_, second.ppdb_);
}
database::~database()
{
sqlite3_close_v2(ppdb_);
}
achievement database::getRandomAchievement() const
{
std::string queryString = "SELECT achievements.achievement_id, achievements.game_id, achievements.title, games.color FROM achievements INNER JOIN games ON games.game_id = achievements.game_id ORDER BY RANDOM() LIMIT 1";
sqlite3_stmt* ppstmt;
if (sqlite3_prepare_v2(
ppdb_,
queryString.c_str(),
queryString.length(),
&ppstmt,
NULL) != SQLITE_OK)
{
std::string errorMsg = sqlite3_errmsg(ppdb_);
sqlite3_finalize(ppstmt);
throw std::logic_error(errorMsg);
}
if (sqlite3_step(ppstmt) != SQLITE_ROW)
{
std::string errorMsg = sqlite3_errmsg(ppdb_);
sqlite3_finalize(ppstmt);
throw std::logic_error(errorMsg);
}
achievement result;
result.achievementId = sqlite3_column_int(ppstmt, 0);
result.gameId = sqlite3_column_int(ppstmt, 1);
result.title = reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 2));
result.color = reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 3));
sqlite3_finalize(ppstmt);
return result;
}
std::string database::getRandomImageForGame(int gameId) const
{
std::string queryString = "SELECT filename FROM images WHERE game_id = ? ORDER BY RANDOM() LIMIT 1";
sqlite3_stmt* ppstmt;
if (sqlite3_prepare_v2(
ppdb_,
queryString.c_str(),
queryString.length(),
&ppstmt,
NULL) != SQLITE_OK)
{
std::string errorMsg = sqlite3_errmsg(ppdb_);
sqlite3_finalize(ppstmt);
throw std::logic_error(errorMsg);
}
if (sqlite3_bind_int(ppstmt, 1, gameId) != SQLITE_OK)
{
std::string errorMsg = sqlite3_errmsg(ppdb_);
sqlite3_finalize(ppstmt);
throw std::logic_error(errorMsg);
}
if (sqlite3_step(ppstmt) != SQLITE_ROW)
{
std::string errorMsg = sqlite3_errmsg(ppdb_);
sqlite3_finalize(ppstmt);
throw std::logic_error(errorMsg);
}
std::string result = reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 0));
sqlite3_finalize(ppstmt);
return result;
}
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