Set up location-driven Geotriggers

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
// [WriteFile Name=Geotriggers, Category=Analysis]
// [Legal]
// Copyright 2021 Esri.

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

#ifdef PCH_BUILD
#include "pch.hpp"
#endif // PCH_BUILD

#include "Geotriggers.h"

#include "ArcadeExpression.h"
#include "FenceGeotrigger.h"
#include "FenceGeotriggerNotificationInfo.h"
#include "GeotriggerNotificationInfo.h"
#include "GeotriggerMonitor.h"
#include "GeotriggersTypes.h"
#include "FeatureFenceParameters.h"
#include "LocationGeotriggerFeed.h"
#include "Map.h"
#include "MapQuickView.h"
#include "PortalItem.h"
#include "ServiceFeatureTable.h"
#include "SimulatedLocationDataSource.h"
#include "SimulationParameters.h"

using namespace Esri::ArcGISRuntime;

namespace
{
const QString walkingTourPolyineJson("{\"paths\":[[[-119.709881177746,34.4570041646846],[-119.709875813328,34.4570152227745],[-119.709869107805,34.4570240692453],[-119.709859720074,34.4570351273326],[-119.709853014551,34.4570539260775],[-119.709847650133,34.4570760422426],[-119.709848991238,34.4570926293626],[-119.70985569676,34.4571103222869],[-119.709873131119,34.4571202745552],[-119.709889224373,34.4571302268223],[-119.709902635418,34.4571357558591],[-119.709910682045,34.4571600836165],[-119.709910682045,34.4571744591062],[-119.709902635418,34.4571833055602],[-119.709889224373,34.4571910462067],[-119.70988251885,34.4571965752394],[-119.70988251885,34.4572032100782],[-119.709889224373,34.4572175855605],[-119.709898612104,34.4572264320099],[-119.709912023149,34.4572341726524],[-119.709901294313,34.4572419132941],[-119.709895929895,34.4572507597409],[-119.709897271,34.4572596061868],[-119.709902635418,34.4572728758539],[-119.709902635418,34.4572828281028],[-119.70990934094,34.457294991961],[-119.709912023149,34.4573038384022],[-119.709886542164,34.4573115790375],[-119.709861061178,34.4573248486963],[-119.709843626819,34.4573414357669],[-119.709836921297,34.4573668692686],[-119.709843626819,34.4573934085666],[-119.709827533565,34.4574055724087],[-119.709791323744,34.4574188420525],[-119.709749749504,34.4574332174977],[-119.709709516369,34.4574431697275],[-119.709734997354,34.4574807670294],[-119.709748062646,34.4575248306656],[-119.709757450378,34.4575635337324],[-119.709770861423,34.457600025179],[-119.709785613572,34.4576387282109],[-119.70980573014,34.4576730080242],[-119.709815117871,34.4577117110223],[-119.709821823394,34.4577504140025],[-119.709821823394,34.4577869053674],[-119.709821823394,34.4578256083127],[-119.70981780008,34.4578609938471],[-119.709819141185,34.457906331541],[-119.70981460448,34.4579890675855],[-119.709818627793,34.4580675790658],[-119.70982667442,34.4581118108532],[-119.709832038838,34.4581471962662],[-119.709834721047,34.4581947453913],[-119.709836062152,34.4582323423548],[-119.709834721047,34.4582787856393],[-119.709805216748,34.4583429215611],[-119.709759619195,34.4584026342716],[-119.709700610597,34.4584612411497],[-119.709645400048,34.4585103926263],[-119.709566274882,34.4585457778704],[-119.709493855239,34.4585944325566],[-119.709458986522,34.458622077252],[-119.709424117805,34.4586198656767],[-119.709386566878,34.4586110193749],[-119.70935438037,34.4586110193749],[-119.709339628221,34.4586231830396],[-119.709324876071,34.4586585682359],[-119.709306100608,34.4586862129101],[-119.709269890786,34.4587171749343],[-119.709244409801,34.4587238096523],[-119.709229657651,34.4587293385835],[-119.709212223293,34.4587459253751],[-119.70919076562,34.4587945799446],[-119.709174672366,34.4588503400161],[-119.709157238008,34.4589288506865],[-119.709153214694,34.4589951976744],[-119.709155896903,34.4590449578807],[-119.70916394353,34.4590958238387],[-119.709186742307,34.4591323146156],[-119.709218928815,34.4591621706939],[-119.709237704278,34.4591831805204],[-119.709241727592,34.4592252001575],[-119.709238133851,34.459258658624],[-119.709219358388,34.4592796684262],[-119.709207288447,34.4592962551085],[-119.709208629552,34.4593084186733],[-119.709271661463,34.4593791884701],[-119.709310553494,34.4594267368937],[-119.709330670062,34.4594510639836],[-119.709353468838,34.4595008239182],[-119.70936285657,34.4595362087426],[-119.709423221989,34.4595943612845],[-119.709455408497,34.4596297460692],[-119.709487595005,34.459665130839],[-119.709507711573,34.4596817174446],[-119.709523804827,34.4596861405389],[-119.709557332439,34.4596894578594],[-119.709586836739,34.4596894578594],[-119.709593542261,34.4596772943501],[-119.709590860052,34.4596496500041],[-119.709572084589,34.4595777746615],[-119.709566720171,34.4595313320996],[-119.709578790112,34.4595136396883],[-119.709590860052,34.4594992646013],[-119.709627069874,34.4594882068404],[-119.709675349636,34.4595567649343],[-119.709735699339,34.4596197941001],[-119.709775932474,34.4596795058974],[-119.709802754564,34.4597126790997],[-119.709832258863,34.4597359003334],[-119.70986712758,34.4597171021923],[-119.70986980979,34.4596839289918],[-119.709865786476,34.4596308518435],[-119.709876515312,34.4595788804365],[-119.70988187973,34.4595346494263],[-119.709879197521,34.4594926299449],[-119.709852375431,34.4594539277723],[-119.709806777878,34.4593953215911],[-119.709767885847,34.4593212344729],[-119.709720947189,34.4592195028005],[-119.709708720088,34.4591478732967],[-119.709710061193,34.4591058536206],[-119.709707378984,34.459079314867],[-119.709652393699,34.4590262373344],[-119.709617524982,34.4589499383221],[-119.709626771268,34.4588695962162],[-119.709683097658,34.4588032491285],[-119.709730036316,34.4587391135603],[-119.709759540615,34.4586993052518],[-119.7097850216,34.4586650258598],[-119.710059948024,34.4587744987075],[-119.710104204473,34.4587932970608],[-119.710128443889,34.4587649224307],[-119.71019415801,34.4587096331253],[-119.710273283176,34.4586731421637],[-119.71031619852,34.4586532379961],[-119.710367160491,34.4586023717685],[-119.710392641477,34.4585747270665],[-119.710432874612,34.4585083797445],[-119.710471766643,34.4584453497398],[-119.710505294256,34.4584165991955],[-119.710575487456,34.4583689119728],[-119.710705574593,34.4583136224052],[-119.710780676446,34.4582627559707],[-119.710839685044,34.4582030431601],[-119.710895995717,34.4581546042213],[-119.710948298793,34.458095997128],[-119.710988531928,34.4580263320391],[-119.711015354018,34.4579511379096],[-119.711011330705,34.4579102234284],[-119.710985849719,34.4578847900921],[-119.710946957688,34.4578715205223],[-119.710779319625,34.4578847900921],[-119.71073908649,34.4578847900921],[-119.7107122644,34.4578604625458],[-119.71069751225,34.4578295002039],[-119.710674713473,34.4578095958352],[-119.710642526965,34.4577996436491],[-119.710614363771,34.457830606002],[-119.71057547174,34.4578571451526],[-119.710539261918,34.4578737321174],[-119.71049500547,34.4578858958895],[-119.710452090125,34.4578836842947],[-119.710413198095,34.4578748379149],[-119.710375647168,34.4578527219614],[-119.710336755138,34.4578350291944],[-119.710299204211,34.4578107016336],[-119.71027506433,34.4577885856631],[-119.710269605616,34.4577886418169],[-119.710240101317,34.4577510446536],[-119.710198527077,34.4576758502763],[-119.710154270628,34.4575984442288],[-119.710112696389,34.4575265671206],[-119.710044300059,34.4574381029023],[-119.709978842634,34.4573543166616],[-119.709966772693,34.4573410470074],[-119.709972137111,34.4573200367174],[-119.70997481932,34.4573023438375],[-119.709973478216,34.4572846509538],[-119.709970796007,34.457259217427],[-119.709931903976,34.4572348896984],[-119.709914469617,34.4572337838924],[-119.709893011945,34.4572171968005],[-119.709884965318,34.4571972922858],[-119.709902232039,34.4571821133624],[-119.70991161977,34.457167737874],[-119.709907596457,34.4571389868898],[-119.709919666397,34.4571235055865],[-119.709922348606,34.4571047068572],[-119.709918325293,34.4570836965077],[-119.709919666397,34.4570648977695],[-119.70992637192,34.4570516280694],[-119.709933077442,34.4570339351326],[-119.709935759651,34.4570151363832],[-119.709927713024,34.4570062899114],[-119.70991161977,34.4570018666751],[-119.709883456576,34.4570040782933]]],\"spatialReference\":{\"wkid\":4326,\"latestWkid\":4326}}");
const QString sectionGeotriggerName = "Section Geotrigger";
const QString poiGeotriggerName = "POI Geotrigger";
}

Geotriggers::Geotriggers(QObject* parent /* = nullptr */):
  QObject(parent)
{
  // This sample uses a web map with a predefined tile basemap, feature styles, and labels
  m_map = new Map(new PortalItem("6ab0e91dc39e478cae4f408e1a36a308", this), this);

  // Instantiate the service feature tables to later create GeotriggerMonitors for
  m_gardenSections = new ServiceFeatureTable(new PortalItem("1ba816341ea04243832136379b8951d9", this), 0, this);
  m_gardenPois = new ServiceFeatureTable(new PortalItem("7c6280c290c34ae8aeb6b5c4ec841167", this), 0, this);
}

Geotriggers::~Geotriggers() = default;

void Geotriggers::init()
{
  // Register the map view for QML
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<Geotriggers>("Esri.Samples", 1, 0, "GeotriggersSample");
}

// Create READ functions for Q_PROPERTIES like the information about sections and POIs
MapQuickView* Geotriggers::mapView() const
{
  return m_mapView;
}

QString Geotriggers::currentSection() const
{
  if (!m_currentFeaturesEntered[sectionGeotriggerName].isEmpty())
    return m_currentFeaturesEntered[sectionGeotriggerName].last();

  return "N/A";
}

QStringList Geotriggers::poisInRange() const
{
  return m_currentFeaturesEntered[poiGeotriggerName];
}

QString Geotriggers::currentDescription() const
{
  return m_currentFeatureDescription;
}

QUrl Geotriggers::currentImageUrl() const
{
  return m_currentFeatureImageUrl;
}

// Set the map view - once that is done we can instantiate the location display and geotrigger monitors
void Geotriggers::setMapView(MapQuickView* mapView)
{
  if (!mapView || mapView == m_mapView)
    return;

  m_mapView = mapView;
  m_mapView->setMap(m_map);

  emit mapViewChanged();

  // Start the simulated location display data source and create a LocationGeotriggerFeed that will be required in createGeotriggerMonitor()
  initializeSimulatedLocationDisplay();

  // Create geotriggers for each of the service feature tables
  createGeotriggerMonitor(m_gardenSections, 0.0, sectionGeotriggerName);
  createGeotriggerMonitor(m_gardenPois, 10.0, poiGeotriggerName);
}

void Geotriggers::initializeSimulatedLocationDisplay()
{
  m_simulatedLocationDataSource = new SimulatedLocationDataSource(this);

  // Create SimulationParameters starting at the current time, a velocity of 5 m/s, and a horizontal and vertical accuracy of 0.0
  SimulationParameters* simulationParameters = new SimulationParameters(QDateTime::currentDateTime(), 5.0, 0.0, 0.0, this);

  // Use the polyline as defined above or from this AGOL GeoJSON to define the path. retrieved from https://https://arcgisruntime.maps.arcgis.com/home/item.html?id=2a346cf1668d4564b8413382ae98a956
  m_simulatedLocationDataSource->setLocationsWithPolyline(Polyline::fromJson(walkingTourPolyineJson), simulationParameters);

  m_mapView->locationDisplay()->setDataSource(m_simulatedLocationDataSource);
  m_mapView->locationDisplay()->setAutoPanMode(LocationDisplayAutoPanMode::Recenter);
  m_mapView->locationDisplay()->setInitialZoomScale(1000);
  m_mapView->locationDisplay()->start();

  m_simulatedLocationDataSource->start();

  // LocationGeotriggerFeed will be used in instantiating a FenceGeotrigger in createGeotriggerMonitor()
  m_geotriggerFeed = new LocationGeotriggerFeed(m_simulatedLocationDataSource, this);
}

// This function is used to create two geotrigger monitors in this sample - one for the sections and one for the points of interest
// The parameters for this function are the only differences between the two geotrigger monitors
void Geotriggers::createGeotriggerMonitor(ServiceFeatureTable* serviceFeatureTable, double bufferSize, const QString& geotriggerName)
{
  FeatureFenceParameters* featureFenceParameters = new FeatureFenceParameters(serviceFeatureTable, bufferSize, this);
  // The ArcadeExpression defined in the following FenceGeotrigger returns the value for the "name" field of the feature that triggered the monitor
  FenceGeotrigger* fenceGeotrigger = new FenceGeotrigger(m_geotriggerFeed, FenceRuleType::EnterOrExit, featureFenceParameters, new ArcadeExpression("$fencefeature.name", this), geotriggerName, this);
  GeotriggerMonitor* geotriggerMonitor = new GeotriggerMonitor(fenceGeotrigger, this);

  connect(geotriggerMonitor, &GeotriggerMonitor::geotriggerNotification, this, &Geotriggers::handleGeotriggerNotification);

  // Start must be explicitly called. It is called after the signal connection is defined to avoid a race condition in Qt.
  geotriggerMonitor->start();
}

void Geotriggers::handleGeotriggerNotification(GeotriggerNotificationInfo* geotriggerNotificationInfo)
{
  // Create a QScopedPointer so GeotriggerNotificationInfo does not persist outside this scope
  QScopedPointer<GeotriggerNotificationInfo> scopedNotification(geotriggerNotificationInfo);

  // GeotriggerNotificationInfo provides access to information about the geotrigger that was triggered
  QString geotriggerName = geotriggerNotificationInfo->geotriggerMonitor()->geotrigger()->name();

  // message() returns the evaluated arcade expression defined in the FenceGeotrigger, "$fencefeatue.name" in this case
  QString featureName = geotriggerNotificationInfo->message();

  // FenceGeotriggerNotificationInfo provides access to the feature that triggered the notification
  FenceGeotriggerNotificationInfo* fenceGeotriggerNotificationInfo = static_cast<FenceGeotriggerNotificationInfo*>(geotriggerNotificationInfo);
  GeoElement* fenceGeoElement = fenceGeotriggerNotificationInfo->fenceGeoElement();

  ArcGISFeature* fenceFeature = dynamic_cast<ArcGISFeature*>(fenceGeoElement);

  if (fenceGeotriggerNotificationInfo->fenceNotificationType() == FenceNotificationType::Entered)
  {
    // If the user enters a given geofence, add the feature's information to the UI and save the feature for querying.
    m_currentFeaturesEntered[geotriggerName].append(featureName);

    if (!m_featureQMap.contains(featureName))
    {
      // Set the parent to the Geotriggers QObject so the feature is still available outside the scope of this function
      fenceFeature->setParent(this);
      m_featureQMap[featureName] = fenceFeature;
    }
  }
  else
  {
    // If the user leaves the geofence, remove the information from the UI
    m_currentFeaturesEntered[geotriggerName].removeAll(featureName);
  }

  emit displayInfoChanged();
}

void Geotriggers::getFeatureInformation(const QString& sectionName)
{
  // Recenter the camera on the user if need be
  m_mapView->locationDisplay()->setAutoPanMode(LocationDisplayAutoPanMode::Recenter);

  // Clear feature description and image of the previous query
  m_currentFeatureImageUrl = QUrl("");

  QMap<QString, ArcGISFeature*>::iterator findIt = m_featureQMap.find(sectionName);

  if (findIt == m_featureQMap.end())
  {
    m_currentFeatureDescription = "Unable to find information for this Garden feature.";
    emit displayInfoChanged();
    return;
  }

  ArcGISFeature* feature = *findIt;
  m_currentFeatureDescription = feature->attributes()->attributeValue("description").toString();

  if (m_featureAttachmentImageUrls.contains(sectionName))
  {
    m_currentFeatureImageUrl = m_featureAttachmentImageUrls[sectionName];
    emit displayInfoChanged();
    return;
  }

  emit displayInfoChanged();

  AttachmentListModel* featureAttachments = feature->attachments();

  // Fetch attachments will automatically trigger upon instantiation of the AttachmentListModel
  connect(featureAttachments, &AttachmentListModel::fetchAttachmentsCompleted, this, [this, sectionName](QUuid, const QList<Attachment*> attachments)
  {
    if (attachments.isEmpty())
      return;

    // Get the first (and only) attachment for the feature
    Attachment* sectionImageAttachment = attachments.first();

    connect(sectionImageAttachment, &Attachment::fetchDataCompleted, this, [this, sectionImageAttachment, sectionName]()
    {
      m_featureAttachmentImageUrls[sectionName] = sectionImageAttachment->attachmentUrl();
      m_currentFeatureImageUrl = m_featureAttachmentImageUrls[sectionName];
      emit displayInfoChanged();
    });

    sectionImageAttachment->fetchData();
  });
}