feedstoragedummyimpl.cpp

/*
    This file is part of Akregator.
 
    Copyright (C) 2005 Frank Osterfeld <frank.osterfeld@kdemail.net>
 
    This program 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 2 of the License, or
    (at your option) any later version.
 
    This program 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.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
    As a special exception, permission is given to link this program
    with any edition of TQt, and distribute the resulting executable,
    without including the source code for TQt in the source distribution.
*/
 
#include "feedstoragedummyimpl.h"
#include "storagedummyimpl.h"
 
#include <feed.h>
 
#include <tqmap.h>
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqvaluelist.h>
 
//typedef unsigned int uint;
namespace Akregator {
namespace Backend {
 
class FeedStorageDummyImpl::FeedStorageDummyImplPrivate
{
    public:
        class Entry
        {            
            public:
            Entry() : guidIsHash(false), guidIsPermaLink(false), status(0), pubDate(0), hash(0) {}
            StorageDummyImpl* mainStorage;
            TQValueList<Category> categories;
            TQString title;
            TQString description;
            TQString link;
            TQString author;
            TQString commentsLink;
            bool guidIsHash;
            bool guidIsPermaLink;
            int comments;
            int status;
            uint pubDate;
            uint hash;
            TQStringList tags;
            bool hasEnclosure;
            TQString enclosureUrl;
            TQString enclosureType;
            int enclosureLength;
        };
    TQMap<TQString, Entry> entries;
    
    // all tags occurring in the feed
    TQStringList tags;
    
    // tag -> articles index
    TQMap<TQString, TQStringList > taggedArticles;
 
    TQValueList<Category> categories;
    TQMap<Category, TQStringList> categorizedArticles;
 
    Storage* mainStorage;
    TQString url;
};
 
 
void FeedStorageDummyImpl::convertOldArchive()
{
}
 
FeedStorageDummyImpl::FeedStorageDummyImpl(const TQString& url, StorageDummyImpl* main) : d(new FeedStorageDummyImplPrivate)
{
    d->url = url;
    d->mainStorage = main;
}
 
FeedStorageDummyImpl::~FeedStorageDummyImpl()
{
    delete d; d = 0;
}
 
void FeedStorageDummyImpl::commit()
{
}
 
void FeedStorageDummyImpl::rollback()
{
}
 
void FeedStorageDummyImpl::close()
{
}
 
int FeedStorageDummyImpl::unread()
{
    return d->mainStorage->unreadFor(d->url);
}
 
void FeedStorageDummyImpl::setUnread(int unread)
{
    d->mainStorage->setUnreadFor(d->url, unread);
}
 
int FeedStorageDummyImpl::totalCount()
{
    return d->mainStorage->totalCountFor(d->url);
}
 
void FeedStorageDummyImpl::setTotalCount(int total)
{
    d->mainStorage->setTotalCountFor(d->url, total);
}
 
int FeedStorageDummyImpl::lastFetch()
{
    return d->mainStorage->lastFetchFor(d->url);
}
 
void FeedStorageDummyImpl::setLastFetch(int lastFetch)
{
    d->mainStorage->setLastFetchFor(d->url, lastFetch);
}
 
TQStringList FeedStorageDummyImpl::articles(const TQString& tag)
{
    return tag.isNull() ? TQStringList(d->entries.keys()) : d->taggedArticles[tag];
}
 
TQStringList FeedStorageDummyImpl::articles(const Category& cat)
{
    return d->categorizedArticles[cat];
}
 
void FeedStorageDummyImpl::addEntry(const TQString& guid)
{
    if (!d->entries.contains(guid))
    {
        d->entries[guid] = FeedStorageDummyImplPrivate::Entry();
        setTotalCount(totalCount()+1);
    }
}
 
bool FeedStorageDummyImpl::contains(const TQString& guid)
{
    return d->entries.contains(guid);
}
 
void FeedStorageDummyImpl::deleteArticle(const TQString& guid)
{
    if (!d->entries.contains(guid))
        return;
 
    setDeleted(guid);
 
    d->entries.remove(guid);
}
 
int FeedStorageDummyImpl::comments(const TQString& guid)
{
    
    return contains(guid) ? d->entries[guid].comments : 0;
}
 
TQString FeedStorageDummyImpl::commentsLink(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].commentsLink : "";
}
 
bool FeedStorageDummyImpl::guidIsHash(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].guidIsHash : false;
}
 
bool FeedStorageDummyImpl::guidIsPermaLink(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].guidIsPermaLink : false;
}
 
uint FeedStorageDummyImpl::hash(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].hash : 0;
}
 
 
void FeedStorageDummyImpl::setDeleted(const TQString& guid)
{
    if (!contains(guid))
        return;
 
    FeedStorageDummyImplPrivate::Entry entry = d->entries[guid];
 
    // remove article from tag->article index
    TQStringList::ConstIterator it = entry.tags.begin();
    TQStringList::ConstIterator end = entry.tags.end();
 
    for ( ; it != end; ++it)
    {
        d->taggedArticles[*it].remove(guid);
        if (d->taggedArticles[*it].count() == 0)
            d->tags.remove(*it);
    }
 
    // remove article from tag->category index
    TQValueList<Category>::ConstIterator it2 = entry.categories.begin();
    TQValueList<Category>::ConstIterator end2 = entry.categories.end();
 
    for ( ; it2 != end2; ++it2)
    {
        d->categorizedArticles[*it2].remove(guid);
        if (d->categorizedArticles[*it2].count() == 0)
            d->categories.remove(*it2);
    }
 
    entry.description = "";
    entry.title = "";
    entry.link = "";
    entry.commentsLink = "";
}
 
TQString FeedStorageDummyImpl::link(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].link : "";
}
 
uint FeedStorageDummyImpl::pubDate(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].pubDate : 0;
}
 
int FeedStorageDummyImpl::status(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].status : 0;
}
 
void FeedStorageDummyImpl::setStatus(const TQString& guid, int status)
{
    if (contains(guid))
        d->entries[guid].status = status;
}
 
TQString FeedStorageDummyImpl::title(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].title : "";
}
 
TQString FeedStorageDummyImpl::description(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].description : "";
}
 
 
void FeedStorageDummyImpl::setPubDate(const TQString& guid, uint pubdate)
{
    if (contains(guid))
        d->entries[guid].pubDate = pubdate;
}
 
void FeedStorageDummyImpl::setGuidIsHash(const TQString& guid, bool isHash)
{
    if (contains(guid))
        d->entries[guid].guidIsHash = isHash;
}
 
void FeedStorageDummyImpl::setLink(const TQString& guid, const TQString& link)
{
    if (contains(guid))
        d->entries[guid].link = link;
}
 
void FeedStorageDummyImpl::setHash(const TQString& guid, uint hash)
{
    if (contains(guid))
        d->entries[guid].hash = hash;
}
 
void FeedStorageDummyImpl::setTitle(const TQString& guid, const TQString& title)
{
    if (contains(guid))
        d->entries[guid].title = title;
}
 
void FeedStorageDummyImpl::setDescription(const TQString& guid, const TQString& description)
{
    if (contains(guid))
        d->entries[guid].description = description;
}
 
void FeedStorageDummyImpl::setCommentsLink(const TQString& guid, const TQString& commentsLink)
{
    if (contains(guid))
        d->entries[guid].commentsLink = commentsLink;
}
 
void FeedStorageDummyImpl::setComments(const TQString& guid, int comments)
{
    if (contains(guid))
        d->entries[guid].comments = comments;
}
 
 
void FeedStorageDummyImpl::setGuidIsPermaLink(const TQString& guid, bool isPermaLink)
{
    if (contains(guid))
        d->entries[guid].guidIsPermaLink = isPermaLink;
}
 
void FeedStorageDummyImpl::addTag(const TQString& guid, const TQString& tag)
{
    if (contains(guid))
    {
        d->entries[guid].tags.append(tag);
        if (!d->taggedArticles[tag].contains(guid))
            d->taggedArticles[tag].append(guid);
        if (!d->tags.contains(tag))
            d->tags.append(tag);
    }
 
}
 
void FeedStorageDummyImpl::addCategory(const TQString& guid, const Category& cat)
{
    if (!contains(guid))
        return;
 
    d->entries[guid].categories.append(cat);
 
    if (d->categorizedArticles[cat].count() == 0)
        d->categories.append(cat);
    d->categorizedArticles[cat].append(guid);
}
 
void FeedStorageDummyImpl::setAuthor(const TQString& guid, const TQString& author)
{
    if (contains(guid))
        d->entries[guid].author = author;
}
 
TQString FeedStorageDummyImpl::author(const TQString& guid)
{
    return contains(guid) ? d->entries[guid].author : TQString();
}
 
TQValueList<Category> FeedStorageDummyImpl::categories(const TQString& guid)
{
  if (!guid.isNull())
        return contains(guid) ? d->entries[guid].categories : TQValueList<Category>();
    else
        return d->categories;
}
 
 
void FeedStorageDummyImpl::removeTag(const TQString& guid, const TQString& tag)
{
    if (contains(guid))
    {
        d->entries[guid].tags.remove(tag);
        d->taggedArticles[tag].remove(guid);
        if (d->taggedArticles[tag].count() == 0)
            d->tags.remove(tag);
    }
}
 
TQStringList FeedStorageDummyImpl::tags(const TQString& guid)
{
    if (!guid.isNull())
        return contains(guid) ? d->entries[guid].tags : TQStringList();
    else
    {
        return d->tags;
    }
}
 
void FeedStorageDummyImpl::add(FeedStorage* source)
{
    TQStringList articles = source->articles();
    for (TQStringList::ConstIterator it = articles.begin(); it != articles.end(); ++it)
        copyArticle(*it, source);
    setUnread(source->unread());
    setLastFetch(source->lastFetch());
    setTotalCount(source->totalCount());
}
 
void FeedStorageDummyImpl::copyArticle(const TQString& guid, FeedStorage* source)
{
    if (!contains(guid))
        addEntry(guid);
 
    setComments(guid, source->comments(guid));
    setCommentsLink(guid, source->commentsLink(guid));
    setDescription(guid, source->description(guid));
    setGuidIsHash(guid, source->guidIsHash(guid));
    setGuidIsPermaLink(guid, source->guidIsPermaLink(guid));
    setHash(guid, source->hash(guid));
    setLink(guid, source->link(guid));
    setPubDate(guid, source->pubDate(guid));
    setStatus(guid, source->status(guid));
    setTitle(guid, source->title(guid));
    TQStringList tags = source->tags(guid);
    
    for (TQStringList::ConstIterator it = tags.begin(); it != tags.end(); ++it)
        addTag(guid, *it);
}
 
void FeedStorageDummyImpl::clear()
{
    d->entries.clear();
    setUnread(0);
    setTotalCount(0);
}
 
void FeedStorageDummyImpl::setEnclosure(const TQString& guid, const TQString& url, const TQString& type, int length)
{
    if (contains(guid))
    {
        FeedStorageDummyImplPrivate::Entry entry = d->entries[guid];
        entry.hasEnclosure = true;
        entry.enclosureUrl = url;
        entry.enclosureType = type;
        entry.enclosureLength = length;
    }
}
 
void FeedStorageDummyImpl::removeEnclosure(const TQString& guid)
{
    if (contains(guid))
    {
        FeedStorageDummyImplPrivate::Entry entry = d->entries[guid];
        entry.hasEnclosure = false;
        entry.enclosureUrl = TQString();
        entry.enclosureType = TQString();
        entry.enclosureLength = -1;
    }
}
 
void FeedStorageDummyImpl::enclosure(const TQString& guid, bool& hasEnclosure, TQString& url, TQString& type, int& length)
{
    if (contains(guid))
    {
        FeedStorageDummyImplPrivate::Entry entry = d->entries[guid];
        hasEnclosure = entry.hasEnclosure;
        url = entry.enclosureUrl;
        type = entry.enclosureType;
        length = entry.enclosureLength;
    }
    else
    {
        hasEnclosure = false;
        url = TQString();
        type = TQString();
        length = -1;
    }
}
 
} // namespace Backend
} // namespace Akregator