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/*
* Copyright (c) 2018 Sune Vuorela <sune@vuorela.dk>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <QObject>
#include <mutex>
#include "recipeparser.h"
#include <memory>
#include <QHash>
#include <future>
class QAbstractItemModel;
/**
* File system scanner to index the recipes in the recipe collection.
*
* As a implementation detail, a worker thread is used for
* the file system access and parsing and stuff.
*/
class Scanner : public QObject
{
Q_OBJECT
public:
Scanner(QObject* parent = nullptr);
/**
* \return tree model of parsed tags
*/
std::shared_ptr<QAbstractItemModel> parsedTags() const;
/**
* \return tree model of parsed ingredients
*/
std::shared_ptr<QAbstractItemModel> parsedIngredients() const;
/**
* \return list model of parsed title
*/
std::shared_ptr<QAbstractItemModel> parsedTitleList() const;
/**
* \return map from file path to recipe title
*/
QHash<QString,QString> parsedFileNameTitleMap() const;
/**
* Sets the (new) root path and triggers a re-indexing of everything.
*/
void setRootPath(const QString& path);
QString rootPath() const;
~Scanner();
public Q_SLOTS:
/**
* Re-indexes with current root path
*/
void doUpdate();
Q_SIGNALS:
/**
* Emitted update is done (and new models and maps and such can be read)
*/
void dataUpdated();
/**
* \internal - thread switching for dataUpdated.
*/
void dataUpdatedInternal(QPrivateSignal p = QPrivateSignal());
private:
mutable std::mutex m_mutex;
std::shared_ptr<QAbstractItemModel> m_parsedTags;
std::shared_ptr<QAbstractItemModel> m_parsedIngredients;
std::shared_ptr<QAbstractItemModel> m_titleList;
QHash<QString,QString> m_parsedFileNameTitleMap;
/**
* Function to be run in a different thread.
* \param path Root path to start indexing from
* \param targetThread The QThread to move created QObjects to (main thread) before switching back.
*/
void parseThingsInDifferentThread(const QString& path, QThread* targetThread);
QString m_rootPath;
std::atomic_bool m_running;
std::future<void> m_future;
};
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