Files
neochat/src/pollhandler.h
2023-09-23 14:05:50 +00:00

97 lines
2.6 KiB
C++

// SPDX-FileCopyrightText: 2022 Tobias Fella <tobias.fella@kde.org>
// SPDX-License-Identifier: LGPL-2.0-or-later
#pragma once
#include <QJsonObject>
#include <QObject>
#include <QPair>
#include <QQmlEngine>
class NeoChatRoom;
/**
* @class PollHandler
*
* A class to help manage a poll in a room.
*
* A poll is made up of a start event that poses the question and possible answers,
* and is followed by a series of response events as users in the room select
* their choice. This purpose of the poll handler is to keep track of all this as
* the poll is displayed as a single event in the timeline which merges all this
* information.
*/
class PollHandler : public QObject
{
Q_OBJECT
QML_ELEMENT
/**
* @brief The current room for the poll.
*/
Q_PROPERTY(NeoChatRoom *room READ room WRITE setRoom NOTIFY roomChanged)
/**
* @brief The Matrix event ID for the event that started the poll.
*/
Q_PROPERTY(QString pollStartEventId READ pollStartEventId WRITE setPollStartEventId NOTIFY pollStartEventIdChanged)
/**
* @brief The list of answers to the poll from users in the room.
*/
Q_PROPERTY(QJsonObject answers READ answers NOTIFY answersChanged)
/**
* @brief The list number of votes for each answer in the poll.
*/
Q_PROPERTY(QJsonObject counts READ counts NOTIFY answersChanged)
/**
* @brief Whether the poll has ended.
*/
Q_PROPERTY(bool hasEnded READ hasEnded NOTIFY hasEndedChanged)
/**
* @brief The total number of answers to the poll.
*/
Q_PROPERTY(int answerCount READ answerCount NOTIFY answersChanged)
public:
PollHandler(QObject *parent = nullptr);
NeoChatRoom *room() const;
void setRoom(NeoChatRoom *room);
QString pollStartEventId() const;
void setPollStartEventId(const QString &eventId);
bool hasEnded() const;
int answerCount() const;
QJsonObject answers() const;
QJsonObject counts() const;
/**
* @brief Send an answer to the poll.
*/
Q_INVOKABLE void sendPollAnswer(const QString &eventId, const QString &answerId);
Q_SIGNALS:
void roomChanged();
void pollStartEventIdChanged();
void answersChanged();
void hasEndedChanged();
private:
NeoChatRoom *m_room = nullptr;
QString m_pollStartEventId;
void checkLoadRelations();
void handleAnswer(const QJsonObject &object, const QString &sender, QDateTime timestamp);
QMap<QString, QDateTime> m_answerTimestamps;
QJsonObject m_answers;
int m_maxVotes = 1;
bool m_hasEnded = false;
QDateTime m_endedTimestamp;
};