feat(Core/Database): port TrinityCore database API (#5611)

src/server/database/Database/DatabaseEnvFwd.h

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
+ * Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
+ */
+
+#ifndef DatabaseEnvFwd_h__
+#define DatabaseEnvFwd_h__
+
+#include <future>
+#include <memory>
+
+struct QueryResultFieldMetadata;
+class Field;
+
+class ResultSet;
+using QueryResult = std::shared_ptr<ResultSet>;
+using QueryResultFuture = std::future<QueryResult>;
+using QueryResultPromise = std::promise<QueryResult>;
+
+class CharacterDatabaseConnection;
+class LoginDatabaseConnection;
+class WorldDatabaseConnection;
+
+class PreparedStatementBase;
+
+template<typename T>
+class PreparedStatement;
+
+using CharacterDatabasePreparedStatement = PreparedStatement<CharacterDatabaseConnection>;
+using LoginDatabasePreparedStatement = PreparedStatement<LoginDatabaseConnection>;
+using WorldDatabasePreparedStatement = PreparedStatement<WorldDatabaseConnection>;
+
+class PreparedResultSet;
+using PreparedQueryResult = std::shared_ptr<PreparedResultSet>;
+using PreparedQueryResultFuture = std::future<PreparedQueryResult>;
+using PreparedQueryResultPromise = std::promise<PreparedQueryResult>;
+
+class QueryCallback;
+
+template<typename T>
+class AsyncCallbackProcessor;
+
+using QueryCallbackProcessor = AsyncCallbackProcessor<QueryCallback>;
+
+class TransactionBase;
+
+using TransactionFuture = std::future<bool>;
+using TransactionPromise = std::promise<bool>;
+
+template<typename T>
+class Transaction;
+
+class TransactionCallback;
+
+template<typename T>
+using SQLTransaction = std::shared_ptr<Transaction<T>>;
+
+using CharacterDatabaseTransaction = SQLTransaction<CharacterDatabaseConnection>;
+using LoginDatabaseTransaction = SQLTransaction<LoginDatabaseConnection>;
+using WorldDatabaseTransaction = SQLTransaction<WorldDatabaseConnection>;
+
+class SQLQueryHolderBase;
+using QueryResultHolderFuture = std::future<void>;
+using QueryResultHolderPromise = std::promise<void>;
+
+template<typename T>
+class SQLQueryHolder;
+
+using CharacterDatabaseQueryHolder = SQLQueryHolder<CharacterDatabaseConnection>;
+using LoginDatabaseQueryHolder = SQLQueryHolder<LoginDatabaseConnection>;
+using WorldDatabaseQueryHolder = SQLQueryHolder<WorldDatabaseConnection>;
+
+class SQLQueryHolderCallback;
+
+// mysql
+struct MySQLHandle;
+struct MySQLResult;
+struct MySQLField;
+struct MySQLBind;
+struct MySQLStmt;
+
+#endif // DatabaseEnvFwd_h__