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/*
* libfud
* Copyright 2024 Dominick Allen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FUD_SQLITE_HPP
#define FUD_SQLITE_HPP
#include <fud_result.hpp>
#include <fud_status.hpp>
#include <fud_string.hpp>
#include <sqlite3.h>
namespace fud {
class SqliteStatement;
enum class SqliteOpenMode : int
{
ReadOnly = SQLITE_OPEN_READONLY,
ReadWrite = SQLITE_OPEN_READWRITE,
ReadWriteCreate = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
};
class SqliteDb {
public:
SqliteDb(const String& name, SqliteOpenMode mode, int extraFlags = 0);
SqliteDb(const char* name, SqliteOpenMode mode, int extraFlags = 0);
SqliteDb(const SqliteDb&) = delete;
SqliteDb(SqliteDb&& rhs);
~SqliteDb();
SqliteDb& operator=(const SqliteDb&) = delete;
SqliteDb& operator=(SqliteDb&& rhs);
bool valid() const;
bool revalidate();
FudStatus exec(
const String& statement,
int (*callback)(void*, int, char**, char**),
void* context,
String* errorMessage);
constexpr int errorCode()
{
return m_errorCode;
}
constexpr sqlite3* handle() const
{
return m_dbHandle;
}
// private methods
private:
void initialize();
[[nodiscard]] int open();
Result<SqliteStatement, FudStatus> prepare(const String& sql);
// private data members
private:
String m_name{};
bool m_nameValid{false};
sqlite3* m_dbHandle{nullptr};
int m_errorCode{0};
SqliteOpenMode m_mode{};
int m_extraFlags{};
};
class SqliteStatement {
public:
SqliteStatement(const SqliteDb& sqliteDb, const String& input);
SqliteStatement(const SqliteStatement&) = delete;
SqliteStatement(SqliteStatement&& rhs);
~SqliteStatement();
SqliteStatement& operator=(const SqliteStatement&) = delete;
SqliteStatement& operator=(SqliteStatement&& rhs) = delete;
bool valid() const;
sqlite3_stmt* statement();
int step();
FudStatus reset();
constexpr int errorCode()
{
return m_errorCode;
}
constexpr FudStatus status()
{
return m_status;
}
private:
String m_input{};
const char* m_tail{nullptr};
FudStatus m_status{FudStatus::ObjectInvalid};
int m_errorCode{0};
sqlite3_stmt* m_preparedStatement{nullptr};
};
} // namespace fud
#endif
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