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// This file is part of FeedReader.
//
// FeedReader 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.
//
// FeedReader 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 FeedReader. If not, see <http://www.gnu.org/licenses/>.
public class FeedReader.CachedActionManager : GLib.Object {
private CachedActions m_lastAction = CachedActions.NONE;
private string m_ids = "";
private static CachedActionManager? m_manager = null;
public static CachedActionManager get_default()
{
if(m_manager == null)
m_manager = new CachedActionManager();
return m_manager;
}
private CachedActionManager()
{
}
public void markArticleRead(string id, ArticleStatus read)
{
var cachedAction = CachedActions.MARK_READ;
if(read == ArticleStatus.UNREAD)
cachedAction = CachedActions.MARK_UNREAD;
var action = new CachedAction(cachedAction, id, "");
addAction(action);
}
public void markArticleStarred(string id, ArticleStatus marked)
{
var cachedAction = CachedActions.MARK_STARRED;
if(marked == ArticleStatus.UNMARKED)
cachedAction = CachedActions.MARK_UNSTARRED;
var action = new CachedAction(cachedAction, id, "");
addAction(action);
}
public void markFeedRead(string id)
{
var action = new CachedAction(CachedActions.MARK_READ_FEED, id, "");
addAction(action);
}
public void markCategoryRead(string id)
{
var action = new CachedAction(CachedActions.MARK_READ_CATEGORY, id, "");
addAction(action);
}
public void markAllRead()
{
var action = new CachedAction(CachedActions.MARK_READ_ALL, "", "");
addAction(action);
}
private void addAction(CachedAction action)
{
var db = DataBase.writeAccess();
if(db.cachedActionNecessary(action))
{
db.addCachedAction(action.getType(), action.getID());
}
else
{
db.deleteOppositeCachedAction(action);
}
}
public void executeActions()
{
var db = DataBase.writeAccess();
if(db.isTableEmpty("CachedActions"))
{
Logger.debug("CachedActionManager - executeActions: no actions to perform");
return;
}
Logger.debug("CachedActionManager: executeActions");
var actions = db.readCachedActions();
foreach(CachedAction action in actions)
{
Logger.debug("CachedActionManager: executeActions %s %s".printf(action.getID(), action.getType().to_string()));
switch(action.getType())
{
case CachedActions.MARK_READ:
case CachedActions.MARK_UNREAD:
if(action.getType() != m_lastAction && m_ids != "")
{
m_ids += action.getID();
execute(m_ids.substring(1), m_lastAction);
m_lastAction = CachedActions.NONE;
m_ids = "";
}
else
{
m_ids += "," + action.getID();
}
break;
case CachedActions.MARK_STARRED:
FeedServer.get_default().setArticleIsMarked(action.getID(), ArticleStatus.MARKED);
break;
case CachedActions.MARK_UNSTARRED:
FeedServer.get_default().setArticleIsMarked(action.getID(), ArticleStatus.UNMARKED);
break;
case CachedActions.MARK_READ_FEED:
FeedServer.get_default().setFeedRead(action.getID());
break;
case CachedActions.MARK_READ_CATEGORY:
FeedServer.get_default().setCategoryRead(action.getID());
break;
case CachedActions.MARK_READ_ALL:
FeedServer.get_default().markAllItemsRead();
break;
}
m_lastAction = action.getType();
}
if(m_ids != "")
{
execute(m_ids.substring(1), m_lastAction);
}
db.resetCachedActions();
}
private void execute(string ids, CachedActions action)
{
Logger.debug("CachedActionManager: execute %s %s".printf(ids, action.to_string()));
switch(action)
{
case CachedActions.MARK_READ:
FeedServer.get_default().setArticleIsRead(ids, ArticleStatus.READ);
break;
case CachedActions.MARK_UNREAD:
FeedServer.get_default().setArticleIsRead(ids, ArticleStatus.UNREAD);
break;
}
}
}
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