Add test of protobuf GTFS-realtime conversion to PHP
[busui.git] / include / common-transit.inc.php
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
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
<?php
 
/*
 *    Copyright 2010,2011 Alexander Sadleir 
 
  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.
 */
$service_periods = Array(
    'sunday',
    'saturday',
    'weekday'
);
function service_period_day ($spid) {
    $idParts = explode("-",$spid);
        return strtolower($idParts[2]);
}
function service_period($date = "") {
 
    if (isset($_REQUEST['service_period']))
        return $_REQUEST['service_period'];
    $override = getServiceOverride($date);
    if ($override['service_id']) {
        return service_period_day ($override['service_id']);
    }
 
    switch (date('w', ($date != "" ? $date : time()))) {
        case 0:
            return 'sunday';
        case 6:
            return 'saturday';
        default:
            return 'weekday';
    }
}
function service_ids($service_period) {
    switch ($service_period) {
        case 'sunday':
            return Array("2010-TUGGSUN-Sunday-20","2010-BELCSUN-Sunday-19");
        case 'saturday':
            return Array("2010-BELCSAT-Saturday-19","2010-TUGGSAT-Saturday-19");
        default:
            //return 'weekday';
            return Array("2010-BELCMAST-Weekday-15","2010-TUGGMAST-Weekday-14"); 
    }
}
function valid_service_ids() {
    return array_merge(service_ids(""),service_ids('saturday'),service_ids('sunday'));
}
 
function midnight_seconds($time = "") {
    // from http://www.perturb.org/display/Perlfunc__Seconds_Since_Midnight.html
    if ($time != "") {
        return (date("G", $time) * 3600) + (date("i", $time) * 60) + date("s", $time);
    }
    if (isset($_SESSION['time'])) {
        $time = strtotime($_SESSION['time']);
        return (date("G", $time) * 3600) + (date("i", $time) * 60) + date("s", $time);
    }
    return (date("G") * 3600) + (date("i") * 60) + date("s");
}
 
function midnight_seconds_to_time($seconds) {
    if ($seconds > 0) {
        $midnight = mktime(0, 0, 0, date("n"), date("j"), date("Y"));
        return date("h:ia", $midnight + $seconds);
    } else {
        return "";
    }
}
 
if ($GTFSREnabled) {
    $serviceAlertCause = Array(
        "UNKNOWN_CAUSE" => "Unknown cause",
        "OTHER_CAUSE" => "Other cause",
        "TECHNICAL_PROBLEM" => "Technical problem",
        "STRIKE" => "Strike",
        "DEMONSTRATION" => "Demonstration",
        "ACCIDENT" => "Accident",
        "HOLIDAY" => "Holiday",
        "WEATHER" => "Weather",
        "MAINTENANCE" => "Maintenance",
        "CONSTRUCTION" => "Construction",
        "POLICE_ACTIVITY" => "Police activity",
        "MEDICAL_EMERGENCY" => "Medical emergency"
    );
    $serviceAlertEffect = Array(
        "NO_SERVICE" => "No service",
        "REDUCED_SERVICE" => "Reduced service",
        "SIGNIFICANT_DELAYS" => "Significant delays",
        "DETOUR" => "Detour",
        "ADDITIONAL_SERVICE" => "Additional service",
        "MODIFIED_SERVICE" => "Modified service",
        "OTHER_EFFECT" => "Other effect",
        "UNKNOWN_EFFECT" => "Unknown effect",
        "STOP_MOVED" => "Stop moved");
 
    set_include_path(get_include_path() . PATH_SEPARATOR . ($basePath . "lib/Protobuf-PHP/library/DrSlump/"));
 
    include_once("Protobuf.php");
    include_once("Protobuf/Message.php");
    include_once("Protobuf/Registry.php");
    include_once("Protobuf/Descriptor.php");
    include_once("Protobuf/Field.php");
 
    include_once($basePath . "lib/Protobuf-PHP/gtfs-realtime.php");
    include_once("Protobuf/CodecInterface.php");
    include_once("Protobuf/Codec/PhpArray.php");
    include_once("Protobuf/Codec/Binary.php");
    include_once("Protobuf/Codec/Binary/Writer.php");
    include_once("Protobuf/Codec/Json.php");
 
    function getServiceAlerts($filter_class = "", $filter_id = "") {
        /*
 
          also need last modified epoch of client gtfs
 
          - add,remove,patch,inform (null)
          - stop
          - trip
          - network
          - classes (WHERE=)
          - route (short_name or route_id)
          - street
          - stop
          - trip
          Currently support:
          network inform
          trip patch: stop remove
          street inform: route inform, trip inform, stop inform
          route patch: trip remove
         */
        $fm = new transit_realtime\FeedMessage();
        $fh = new transit_realtime\FeedHeader();
        $fh->setGtfsRealtimeVersion(1);
        $fh->setTimestamp(time());
        $fm->setHeader($fh);
        foreach (getCurrentAlerts() as $alert) {
            $fe = new transit_realtime\FeedEntity();
            $fe->setId($alert['id']);
            $fe->setIsDeleted(false);
            $alert = new transit_realtime\Alert();
            $tr = new transit_realtime\TimeRange();
            $tr->setStart($alert['start']);
            $tr->setEnd($alert['end']);
            $alert->addActivePeriod($tr);
            $informedEntities = getInformedAlerts($alert['id'], $_REQUEST['filter_class'], $_REQUEST['filter_id']);
            if (sizeof($informedEntities) > 0) {
                $informed = Array();
                $es = new transit_realtime\EntitySelector();
                if ($informedEntity['informed_class'] == "agency") {
                    $es->setAgencyId($informedEntity['informed_id']);
                }
                if ($informedEntity['informed_class'] == "stop") {
                    $es->setStopId($informedEntity['informed_id']);
                }
                if ($informedEntity['informed_class'] == "route") {
                    $es->setRouteId($informedEntity['informed_id']);
                }
                if ($informedEntity['informed_class'] == "trip") {
                    $td = new transit_realtime\TripDescriptor();
                    $td->setTripId($informedEntity['informed_id']);
                    $es->setTrip($td);
                }
                $alert->addInformedEntity($es);
            }
            $alert->setCause(constant("transit_realtime\Alert\Cause::" . $alert['cause']));
            $alert->setEffect(constant("transit_realtime\Alert\Effect::" . $alert['effect']));
            $tsUrl = new transit_realtime\TranslatedString();
            $tUrl = new transit_realtime\TranslatedString\Translation();
            $tUrl->setText($alert['url']);
            $tUrl->setLanguage("en");
            $tsUrl->addTranslation($tUrl);
            $alert->setUrl($tsUrl);
            $tsHeaderText = new transit_realtime\TranslatedString();
            $tHeaderText = new transit_realtime\TranslatedString\Translation();
            $tHeaderText->setText($alert['header']);
            $tHeaderText->setLanguage("en");
            $tsHeaderText->addTranslation($tHeaderText);
            $alert->setHeaderText($tsHeaderText);
            $tsDescriptionText = new transit_realtime\TranslatedString();
            $tDescriptionText = new transit_realtime\TranslatedString\Translation();
            $tDescriptionText->setText($alert['description']);
            $tDescriptionText->setLanguage("en");
            $tsDescriptionText->addTranslation($tDescriptionText);
            $alert->setDescriptionText($tsDescriptionText);
            $fe->setAlert($alert);
            $fm->addEntity($fe);
        }
        return $fm;
    }
 
    function getServiceAlertsAsArray($filter_class = "", $filter_id = "") {
        $codec = new DrSlump\Protobuf\Codec\PhpArray();
        return $codec->encode(getServiceAlerts($filter_class, $filter_id));
    }
 
    function getServiceAlertsAsBinary($filter_class = "", $filter_id = "") {
        $codec = new DrSlump\Protobuf\Codec\Binary();
        return $codec->encode(getServiceAlerts($filter_class, $filter_id));
    }
 
    function getServiceAlertsAsJSON($filter_class = "", $filter_id = "") {
        $codec = new DrSlump\Protobuf\Codec\Json();
        return $codec->encode(getServiceAlerts($filter_class, $filter_id));
    }
 
    function getServiceAlertsByClass() {
        $return = Array();
        $alerts = getServiceAlertsAsArray("", "");
        foreach ($alerts['entities'] as $entity) {
            foreach ($entity['informed'] as $informed) {
                foreach ($informed as $key => $value) {
                    if (strpos("_id", $key) > 0) {
                        $parts = explode($key);
                        $class = $parts[0];
                        $id = $value;
                    }
                }
                $return[$class][$id][] = $entity;
            }
        }
    }
 
    function getTripUpdates($filter_class = "", $filter_id = "") {
        $fm = new transit_realtime\FeedMessage();
        $fh = new transit_realtime\FeedHeader();
        $fh->setGtfsRealtimeVersion(1);
        $fh->setTimestamp(time());
        $fm->setHeader($fh);
        foreach (getCurrentAlerts() as $alert) {
            $informedEntities = getInformedAlerts($alert['id'], $_REQUEST['filter_class'], $_REQUEST['filter_id']);
            $stops = Array();
            $routestrips = Array();
            if (sizeof($informedEntities) > 0) {
                if ($informedEntity['informed_class'] == "stop" && $informed["x-action"] == "remove") {
                    $stops[] = $informedEntity['informed_id'];
                }
                if (($informedEntity['informed_class'] == "route" || $informedEntity['informed_class'] == "trip") && $informed["x-action"] == "patch") {
                    $routestrips[] = Array("id" => $informedEntity['informed_id'],
                        "type" => $informedEntity['informed_class']);
                }
            }
            foreach ($routestrips as $routetrip) {
                $fe = new transit_realtime\FeedEntity();
                $fe->setId($alert['id'] . $routetrip['id']);
                $fe->setIsDeleted(false);
                $tu = new transit_realtime\TripUpdate();
                $td = new transit_realtime\TripDescriptor();
                if ($routetrip['type']