//
// This file is part of Kepka,
// an unofficial desktop version of Telegram messaging app,
// see https://github.com/procxx/kepka
//
// Kepka 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 3 of the License, or
// (at your option) any later version.
//
// It 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.
//
// In addition, as a special exception, the copyright holders give permission
// to link the code of portions of this program with the OpenSSL library.
//
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
//
#pragma once

#include "core/basic_types.h"
#include "core/utils.h"
#include "history/history_item.h"

class History;

namespace AdminLog {

class HistoryItemOwned;
class LocalIdManager;

void GenerateItems(not_null<History *> history, LocalIdManager &idManager, const MTPDchannelAdminLogEvent &event,
                   Fn<void(HistoryItemOwned item)> callback);

// Smart pointer wrapper for HistoryItem* that destroys the owned item.
class HistoryItemOwned {
public:
	explicit HistoryItemOwned(not_null<HistoryItem *> data)
	    : _data(data) {}
	HistoryItemOwned(const HistoryItemOwned &other) = delete;
	HistoryItemOwned &operator=(const HistoryItemOwned &other) = delete;
	HistoryItemOwned(HistoryItemOwned &&other)
	    : _data(base::take(other._data)) {}
	HistoryItemOwned &operator=(HistoryItemOwned &&other) {
		_data = base::take(other._data);
		return *this;
	}
	~HistoryItemOwned() {
		if (_data) {
			_data->destroy();
		}
	}

	HistoryItem *get() const {
		return _data;
	}
	HistoryItem *operator->() const {
		return get();
	}
	operator HistoryItem *() const {
		return get();
	}

private:
	HistoryItem *_data = nullptr;
};

} // namespace AdminLog