db: prepare highscore register flow

src/db/ClientManagerPlayer.cpp

@@ -30,6 +30,57 @@ namespace
 
 		return stmt.Prepare(sql, query.c_str());
 	}
+
+	bool LoadHighscoreValue(const char* board, uint32_t playerId, int& value, bool& found)
+	{
+		CStmt stmt;
+		const std::string query =
+			"SELECT value FROM highscore" + std::string(GetTablePostfix()) + " WHERE board=? AND pid=?";
+
+		found = false;
+		value = 0;
+
+		if (!PreparePlayerStmt(stmt, query))
+			return false;
+
+		if (!stmt.BindParam(MYSQL_TYPE_STRING, const_cast<char*>(board))
+			|| !stmt.BindParam(MYSQL_TYPE_LONG, &playerId)
+			|| !stmt.BindResult(MYSQL_TYPE_LONG, &value))
+		{
+			return false;
+		}
+
+		if (!stmt.Execute())
+			return false;
+
+		if (stmt.iRows == 0)
+			return true;
+
+		if (!stmt.Fetch())
+			return false;
+
+		found = true;
+		return true;
+	}
+
+	bool WriteHighscoreValue(const char* board, uint32_t playerId, int value, bool replaceExisting)
+	{
+		CStmt stmt;
+		const std::string query = std::string(replaceExisting ? "REPLACE INTO highscore" : "INSERT INTO highscore")
+			+ std::string(GetTablePostfix()) + " (board, pid, value) VALUES(?, ?, ?)";
+
+		if (!PreparePlayerStmt(stmt, query))
+			return false;
+
+		if (!stmt.BindParam(MYSQL_TYPE_STRING, const_cast<char*>(board))
+			|| !stmt.BindParam(MYSQL_TYPE_LONG, &playerId)
+			|| !stmt.BindParam(MYSQL_TYPE_LONG, &value))
+		{
+			return false;
+		}
+
+		return stmt.Execute();
+	}
 }
 
 //
@@ -1272,73 +1323,30 @@ void CClientManager::QUERY_REMOVE_AFFECT(CPeer * peer, TPacketGDRemoveAffect * p
 
 void CClientManager::QUERY_HIGHSCORE_REGISTER(CPeer* peer, TPacketGDHighscore * data)
 {
-	char szQuery[128];
-	const std::string escapedBoard = CDBManager::instance().EscapeStringCopy(data->szBoard, strnlen(data->szBoard, sizeof(data->szBoard)));
-	snprintf(szQuery, sizeof(szQuery), "SELECT value FROM highscore%s WHERE board='%s' AND pid = %u", GetTablePostfix(), escapedBoard.c_str(), data->dwPID);
-
+	(void)peer;
 	sys_log(0, "GD::HIGHSCORE_REGISTER: PID %u", data->dwPID);
+	char board[sizeof(data->szBoard)];
+	int currentValue = 0;
+	bool found = false;
+	const bool higherIsBetter = data->cDir > 0;
+	const int value = static_cast<int>(data->lValue);
 
-	ClientHandleInfo * pi = new ClientHandleInfo(0);
-	strlcpy(pi->login, data->szBoard, sizeof(pi->login));
-	pi->account_id = (DWORD)data->lValue;
-	pi->player_id = data->dwPID;
-	pi->account_index = (data->cDir > 0);
+	strlcpy(board, data->szBoard, sizeof(board));
 
-	CDBManager::instance().ReturnQuery(szQuery, QID_HIGHSCORE_REGISTER, peer->GetHandle(), pi);
-}
-
-void CClientManager::RESULT_HIGHSCORE_REGISTER(CPeer * pkPeer, SQLMsg * msg)
-{
-	CQueryInfo * qi = (CQueryInfo *) msg->pvUserData;
-	ClientHandleInfo * pi = (ClientHandleInfo *) qi->pvData;
-	//DWORD dwHandle = pi->dwHandle;
-
-	char szBoard[21];
-	strlcpy(szBoard, pi->login, sizeof(szBoard));
-	const std::string escapedBoard = CDBManager::instance().EscapeStringCopy(szBoard, strnlen(szBoard, sizeof(szBoard)));
-	int value = (int)pi->account_id;
-
-	SQLResult * res = msg->Get();
-
-	if (res->uiNumRows == 0)
+	if (!LoadHighscoreValue(board, data->dwPID, currentValue, found))
 	{
-		// 새로운 하이스코어를 삽입
-		char buf[256];
-		snprintf(buf, sizeof(buf), "INSERT INTO highscore%s VALUES('%s', %u, %d)", GetTablePostfix(), escapedBoard.c_str(), pi->player_id, value);
-		CDBManager::instance().AsyncQuery(buf);
+		sys_err("failed to load highscore for board %s pid %u", board, data->dwPID);
+		return;
 	}
-	else
+
+	if (found)
 	{
-		if (!res->pSQLResult)
-		{
-			delete pi;
+		if ((higherIsBetter && currentValue >= value) || (!higherIsBetter && currentValue <= value))
 			return;
-		}
-
-		MYSQL_ROW row = mysql_fetch_row(res->pSQLResult);
-		if (row && row[0])
-		{
-			int current_value = 0; str_to_number(current_value, row[0]);
-			if (pi->account_index && current_value >= value || !pi->account_index && current_value <= value)
-			{
-				value = current_value;
-			}
-			else
-			{
-				char buf[256];
-				snprintf(buf, sizeof(buf), "REPLACE INTO highscore%s VALUES('%s', %u, %d)", GetTablePostfix(), escapedBoard.c_str(), pi->player_id, value);
-				CDBManager::instance().AsyncQuery(buf);
-			}
-		}
-		else
-		{
-			char buf[256];
-			snprintf(buf, sizeof(buf), "INSERT INTO highscore%s VALUES('%s', %u, %d)", GetTablePostfix(), escapedBoard.c_str(), pi->player_id, value);
-			CDBManager::instance().AsyncQuery(buf);
-		}
 	}
-	// TODO: 이곳에서 하이스코어가 업데이트 되었는지 체크하여 공지를 뿌려야한다.
-	delete pi;
+
+	if (!WriteHighscoreValue(board, data->dwPID, value, found))
+		sys_err("failed to write highscore for board %s pid %u", board, data->dwPID);
 }
 
 void CClientManager::InsertLogoutPlayer(DWORD pid)