Add EventTreeModel

1 files changed, 231 insertions, 0 deletions

diff --git a/framework/src/domain/eventtreemodel.cpp b/framework/src/domain/eventtreemodel.cpp
new file mode 100644
index 00000000..2207e4e4
--- /dev/null
+++ b/framework/src/domain/eventtreemodel.cpp
@@ -0,0 +1,231 @@
+/*
+    Copyright (c) 2016 Michael Bohlender <michael.bohlender@kdemail.net>
+    Copyright (c) 2016 Christian Mollekopf <mollekopf@kolabsys.com>
+
+    This library is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This library 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 Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to the
+    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+*/
+
+#include "eventtreemodel.h"
+
+#include <sink/log.h>
+#include <sink/query.h>
+#include <sink/store.h>
+
+#include <QJsonArray>
+#include <QJsonObject>
+#include <QMetaEnum>
+
+EventTreeModel::EventTreeModel(QObject *parent) : QAbstractItemModel(parent), partitionedEvents(7)
+{
+    Sink::Query query;
+    query.setFlags(Sink::Query::LiveQuery);
+    query.request<Event::Summary>();
+    query.request<Event::Description>();
+    query.request<Event::StartTime>();
+    query.request<Event::EndTime>();
+
+    eventModel = Sink::Store::loadModel<Event>(query);
+
+    QObject::connect(eventModel.data(), &QAbstractItemModel::dataChanged, this, &EventTreeModel::partitionData);
+    QObject::connect(eventModel.data(), &QAbstractItemModel::layoutChanged, this, &EventTreeModel::partitionData);
+    QObject::connect(eventModel.data(), &QAbstractItemModel::rowsInserted, this, &EventTreeModel::partitionData);
+    QObject::connect(eventModel.data(), &QAbstractItemModel::rowsMoved, this, &EventTreeModel::partitionData);
+    QObject::connect(eventModel.data(), &QAbstractItemModel::rowsRemoved, this, &EventTreeModel::partitionData);
+
+    partitionData();
+}
+
+void EventTreeModel::partitionData()
+{
+    partitioningMutex.lock();
+
+    SinkLog() << "Partitioning event data";
+
+    beginResetModel();
+
+    for (int i = 0; i < 7; ++i) {
+        partitionedEvents[i].clear();
+    }
+
+    for (int i = 0; i < eventModel->rowCount(); ++i) {
+        auto event = eventModel->index(i, 0).data(Sink::Store::DomainObjectRole).value<Event::Ptr>();
+        int dayOfWeek = event->getStartTime().date().dayOfWeek();
+
+        Q_ASSERT(dayOfWeek != 0);
+        dayOfWeek -= 1;
+
+        SinkTrace() << "Adding event:" << event->getSummary() << "in bucket #" << dayOfWeek;
+
+        partitionedEvents[dayOfWeek].append(event);
+    }
+
+    endResetModel();
+
+    partitioningMutex.unlock();
+}
+
+QModelIndex EventTreeModel::index(int row, int column, const QModelIndex &parent) const
+{
+    if (!hasIndex(row, column, parent)) {
+        return {};
+    }
+
+    if (!parent.isValid()) {
+        // Asking for a LocalEventListModel
+
+        // TODO: Assuming week view
+        if (!(0 <= row && row <= 6)) {
+            return {};
+        }
+
+        return createIndex(row, column, DAY_ID);
+    }
+
+    // Asking for an Event
+    auto day = static_cast<int>(parent.row());
+
+    Q_ASSERT(0 <= day && day <= 6);
+    if (row >= partitionedEvents[day].size()) {
+        return {};
+    }
+
+    return createIndex(row, column, day);
+}
+
+QModelIndex EventTreeModel::parent(const QModelIndex &index) const
+{
+    if (!index.isValid()) {
+        return {};
+    }
+
+    if (index.internalId() == DAY_ID) {
+        return {};
+    }
+
+    auto day = index.internalId();
+
+    return this->index(day, 0);
+}
+
+int EventTreeModel::rowCount(const QModelIndex &parent) const
+{
+    if (!parent.isValid()) {
+        return 7;
+    }
+
+    auto day = parent.row();
+
+    return partitionedEvents[day].size();
+}
+
+int EventTreeModel::columnCount(const QModelIndex &parent) const
+{
+    if (!parent.isValid()) {
+        return 1;
+    }
+
+    return eventModel->columnCount();
+}
+
+QVariant EventTreeModel::data(const QModelIndex &id, int role) const
+{
+    if (id.internalId() == DAY_ID) {
+        auto day = id.row();
+
+        SinkTrace() << "Fetching data for day" << day << "with role" << QMetaEnum::fromType<Roles>().valueToKey(role);
+
+        switch (role) {
+            case Qt::DisplayRole:
+                switch (day) {
+                    case 0:
+                        return "Monday";
+                    case 1:
+                        return "Tuesday";
+                    case 2:
+                        return "Wednesday";
+                    case 3:
+                        return "Thursday";
+                    case 4:
+                        return "Friday";
+                    case 5:
+                        return "Saturday";
+                    case 6:
+                        return "Sunday";
+                    default:
+                        SinkWarning() << "Unknown day";
+                        return {};
+                }
+            case Events: {
+                auto result = QVariantList{};
+
+                for (int i = 0; i < partitionedEvents[day].size(); ++i) {
+                    auto eventId = index(i, 0, id);
+                    SinkTrace() << "Appending event:" << data(eventId, Summary);
+
+                    auto startTime = data(eventId, StartTime).toDateTime().time();
+
+                    result.append(QVariantMap{
+                        {"text", data(eventId, Summary)},
+                        {"description", data(eventId, Description)},
+                        {"starts", startTime.hour() + startTime.minute() / 60.},
+                        {"duration", data(eventId, Duration)},
+                        {"color", "#134bab"},
+                        {"indention", 0},
+                    });
+                }
+
+                return result;
+            }
+            default:
+                SinkWarning() << "Unknown role for day:" << QMetaEnum::fromType<Roles>().valueToKey(role);
+                return {};
+        }
+    } else {
+        auto day = id.internalId();
+        SinkTrace() << "Fetching data for event on day" << day << "with role" << QMetaEnum::fromType<Roles>().valueToKey(role);
+        auto event = partitionedEvents[day].at(id.row());
+
+        switch (role) {
+            case Summary:
+                return event->getSummary();
+            case Description:
+                return event->getDescription();
+            case StartTime:
+                return event->getStartTime();
+            case Duration: {
+                auto start = event->getStartTime();
+                auto end   = event->getEndTime();
+                return start.secsTo(end) / 3600;
+            }
+            default:
+                SinkWarning() << "Unknown role for event:" << QMetaEnum::fromType<Roles>().valueToKey(role);
+                return {};
+        }
+    }
+}
+
+QHash<int, QByteArray> EventTreeModel::roleNames() const
+{
+    QHash<int, QByteArray> roles;
+
+    roles[Events]      = "events";
+    roles[Summary]     = "summary";
+    roles[Description] = "description";
+    roles[StartTime]   = "starts";
+    roles[Duration]    = "duration";
+
+    return roles;
+}