1<?php
2/*
3 *
4 * Copyright 2015 gRPC authors.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 */
19
20// php:generate protoc --proto_path=./../../protos  --php_out=./  --grpc_out=./ --plugin=protoc-gen-grpc=./../../../bins/opt/grpc_php_plugin ./../../protos/route_guide.proto
21
22require dirname(__FILE__).'/../vendor/autoload.php';
23
24define('COORD_FACTOR', 1e7);
25
26$client = new Routeguide\RouteGuideClient('localhost:50051', [
27    'credentials' => Grpc\ChannelCredentials::createInsecure(),
28]);
29
30function printFeature($feature)
31{
32    $name = $feature->getName();
33    if (!$name) {
34        $name_str = 'no feature';
35    } else {
36        $name_str = "feature called $name";
37    }
38    echo sprintf(
39        "Found %s \n  at %f, %f\n",
40        $name_str,
41                 $feature->getLocation()->getLatitude() / COORD_FACTOR,
42                 $feature->getLocation()->getLongitude() / COORD_FACTOR
43    );
44}
45
46/**
47 * Run the getFeature demo. Calls getFeature with a point known to have a
48 * feature and a point known not to have a feature.
49 */
50function runGetFeature()
51{
52    echo "Running GetFeature...\n";
53    global $client;
54
55    $point = new Routeguide\Point();
56    $points = array(
57        array(409146138, -746188906),
58        array(0, 0),
59    );
60
61    foreach ($points as $p) {
62        $point->setLatitude($p[0]);
63        $point->setLongitude($p[1]);
64        // make a unary grpc call
65        list($feature, $status) = $client->GetFeature($point)->wait();
66        printFeature($feature);
67    }
68}
69
70/**
71 * Run the listFeatures demo. Calls listFeatures with a rectangle
72 * containing all of the features in the pre-generated
73 * database. Prints each response as it comes in.
74 */
75function runListFeatures()
76{
77    echo "Running ListFeatures...\n";
78    global $client;
79
80    $lo_point = new Routeguide\Point();
81    $hi_point = new Routeguide\Point();
82
83    $lo_point->setLatitude(400000000);
84    $lo_point->setLongitude(-750000000);
85    $hi_point->setLatitude(420000000);
86    $hi_point->setLongitude(-730000000);
87
88    $rectangle = new Routeguide\Rectangle();
89    $rectangle->setLo($lo_point);
90    $rectangle->setHi($hi_point);
91
92    // start the server streaming call
93    $call = $client->ListFeatures($rectangle);
94    // an iterator over the server streaming responses
95    $features = $call->responses();
96    foreach ($features as $feature) {
97        printFeature($feature);
98    }
99}
100
101/**
102 * Run the recordRoute demo. Sends several randomly chosen points from the
103 * pre-generated feature database with a variable delay in between. Prints
104 * the statistics when they are sent from the server.
105 */
106function runRecordRoute()
107{
108    echo "Running RecordRoute...\n";
109    global $client, $argv;
110
111    // start the client streaming call
112    $call = $client->RecordRoute();
113
114    $db = json_decode(file_get_contents($argv[1]), true);
115    $num_points_in_db = count($db);
116    $num_points = 10;
117    for ($i = 0; $i < $num_points; ++$i) {
118        $point = new Routeguide\Point();
119        $index = rand(0, $num_points_in_db - 1);
120        $lat = $db[$index]['location']['latitude'];
121        $long = $db[$index]['location']['longitude'];
122        $feature_name = $db[$index]['name'];
123        $point->setLatitude($lat);
124        $point->setLongitude($long);
125        echo sprintf(
126            "Visiting point %f, %f,\n  with feature name: %s\n",
127                     $lat / COORD_FACTOR,
128            $long / COORD_FACTOR,
129                     $feature_name ? $feature_name : '<empty>'
130        );
131        usleep(rand(300000, 800000));
132        $call->write($point);
133    }
134    list($route_summary, $status) = $call->wait();
135    echo sprintf(
136        "Finished trip with %d points\nPassed %d features\n".
137                 "Travelled %d meters\nIt took %d seconds\n",
138                 $route_summary->getPointCount(),
139                 $route_summary->getFeatureCount(),
140                 $route_summary->getDistance(),
141                 $route_summary->getElapsedTime()
142    );
143}
144
145/**
146 * Run the routeChat demo. Send some chat messages, and print any chat
147 * messages that are sent from the server.
148 */
149function runRouteChat()
150{
151    echo "Running RouteChat...\n";
152    global $client;
153
154    // start the bidirectional streaming call
155    $call = $client->RouteChat();
156
157    $notes = array(
158        array(1, 1, 'first message'),
159        array(1, 2, 'second message'),
160        array(2, 1, 'third message'),
161        array(1, 1, 'fourth message'),
162        array(1, 1, 'fifth message'),
163    );
164
165    foreach ($notes as $n) {
166        $point = new Routeguide\Point();
167        $point->setLatitude($lat = $n[0]);
168        $point->setLongitude($long = $n[1]);
169
170        $route_note = new Routeguide\RouteNote();
171        $route_note->setLocation($point);
172        $route_note->setMessage($message = $n[2]);
173
174        echo sprintf(
175            "Sending message: '%s' at (%d, %d)\n",
176                     $message,
177            $lat,
178            $long
179        );
180        // send a bunch of messages to the server
181        $call->write($route_note);
182    }
183    $call->writesDone();
184
185    // read from the server until there's no more
186    while ($route_note_reply = $call->read()) {
187        echo sprintf(
188            "Previous left message at (%d, %d): '%s'\n",
189                     $route_note_reply->getLocation()->getLatitude(),
190                     $route_note_reply->getLocation()->getLongitude(),
191                     $route_note_reply->getMessage()
192        );
193    }
194}
195
196/**
197 * Run all of the demos in order.
198 */
199function main()
200{
201    runGetFeature();
202    runListFeatures();
203    runRecordRoute();
204    runRouteChat();
205}
206
207if (empty($argv[1])) {
208    echo 'Usage: php -d extension=grpc.so route_guide_client.php '.
209        "<path to route_guide_db.json>\n";
210    exit(1);
211}
212main();
213