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#ifndef FORUMMODEL_H
#define FORUMMODEL_H

#include <QtCore/QAbstractListModel>
#include <QtCore/QDateTime>
#include <QtSql/QSqlQuery>

class Board;

class ForumModel : public QAbstractListModel
{
	Q_OBJECT
	Q_PROPERTY(QString boardUrl READ boardUrl WRITE setBoardUrl NOTIFY boardUrlChanged)
	Q_PROPERTY(int forumId READ forumId WRITE setForumId NOTIFY forumIdChanged)

public:
	ForumModel(QObject *parent = 0);

	enum DataRoles {
		TitleRole = Qt::DisplayRole,
		IconRole = Qt::DecorationRole,

		TopicIdRole = Qt::UserRole,
		TopicTypeRole
	};

	QString boardUrl() const;
	void setBoardUrl(const QString& url);

	int forumId() const;
	void setForumId(const int id);

	int rowCount(const QModelIndex &parent = QModelIndex()) const;
	QVariant data(const QModelIndex &index, int role) const;

	bool canFetchMore(const QModelIndex &parent = QModelIndex()) const;
	void fetchMore(const QModelIndex &parent = QModelIndex());

signals:
	void boardUrlChanged();
	void forumIdChanged();

protected:
	struct Topic {
		int topic_id;
		QString title;
		QDateTime last_reply_time;
		QDateTime last_update_time;
	};

private:
	static QDateTime parseDateTime(const QVariant& v);
	static QDateTime oldestPostUpdate(const QList<Topic>& topics);
	QDateTime lastTopPostUpdate();
	QList<Topic> loadTopics(int start, int end);
	void clearModel();

private slots:
	void handleForumTopicsChanged(int forumId, int start, int end);
	void update();
	void reload();

private:
	QString _boardUrl;
	Board *_board;
	int _forumId;
	QList<Topic> _data;
	bool _eof;
};


#endif // FORUMMODEL_H