97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
/* This file is part of Clementine.
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Copyright 2012, David Sansome <me@davidsansome.com>
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Copyright 2014, John Maguire <john.maguire@gmail.com>
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Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INTERNET_PODCASTS_PODCASTBACKEND_H_
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#define INTERNET_PODCASTS_PODCASTBACKEND_H_
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#include <QObject>
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#include "podcast.h"
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class Application;
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class Database;
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class PodcastBackend : public QObject {
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Q_OBJECT
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public:
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explicit PodcastBackend(Application* app, QObject* parent = nullptr);
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// Adds the podcast and any included Episodes to the database. Updates the
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// podcast with a database ID. If this podcast already has an ID set, this
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// function does nothing. If a podcast with this URL already exists in the
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// database, this function just updates the ID field in the provided podcast.
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void Subscribe(Podcast* podcast);
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// Removes the Podcast with the given ID from the database. Also removes any
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// episodes associated with this podcast.
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void Unsubscribe(const Podcast& podcast);
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// Returns a list of all the subscribed podcasts. For efficiency the Podcast
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// objects returned won't contain any PodcastEpisode objects - get them
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// separately if you want them.
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PodcastList GetAllSubscriptions();
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Podcast GetSubscriptionById(int id);
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Podcast GetSubscriptionByUrl(const QUrl& url);
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// Returns podcast episodes that match various keys. All these queries are
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// indexed.
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PodcastEpisodeList GetEpisodes(int podcast_id);
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PodcastEpisode GetEpisodeById(int id);
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PodcastEpisode GetEpisodeByUrl(const QUrl& url);
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PodcastEpisode GetEpisodeByUrlOrLocalUrl(const QUrl& url);
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PodcastEpisode GetOldestDownloadedListenedEpisode();
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// Returns a list of episodes that have local data (downloaded=true) but were
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// last listened to before the given QDateTime. This query is NOT indexed so
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// it involves a full search of the table.
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PodcastEpisodeList GetOldDownloadedEpisodes(
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const QDateTime& max_listened_date);
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PodcastEpisodeList GetNewDownloadedEpisodes();
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// Adds episodes to the database. Every episode must have a valid
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// podcast_database_id set already.
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void AddEpisodes(PodcastEpisodeList* episodes);
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// Updates the editable fields (listened, listened_date, downloaded, and
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// local_url) on episodes that must already exist in the database.
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void UpdateEpisodes(const PodcastEpisodeList& episodes);
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signals:
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void SubscriptionAdded(const Podcast& podcast);
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void SubscriptionRemoved(const Podcast& podcast);
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// Emitted when episodes are added to a subscription that *already exists*.
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void EpisodesAdded(const PodcastEpisodeList& episodes);
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// Emitted when existing episodes are updated.
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void EpisodesUpdated(const PodcastEpisodeList& episodes);
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private:
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// Adds each episode to the database, setting their IDs after inserting each
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// one.
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void AddEpisodes(PodcastEpisodeList* episodes, QSqlDatabase* db);
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private:
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Application* app_;
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Database* db_;
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};
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#endif // INTERNET_PODCASTS_PODCASTBACKEND_H_
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