Merged in feature/MAPG-10-check-if-place-has-panorama (pull request #3)

Feature/MAPG-10 check if place has panorama

public/index.php

@@ -8,9 +8,16 @@ switch($url) {
     case '/':
         $controller = new MapGuesser\Controller\GuessController();
         break;
+    case '/getNewPosition.json':
+        $controller = new MapGuesser\Controller\GetNewPosition();
+        break;
     default:
         echo 'Error 404';
         die;
 }
 
-echo $controller->render();
+$view = $controller->run();
+
+header('Content-Type: ' . $view->getContentType() . '; charset=UTF-8');
+
+echo $view->render();

public/static/js/mapguesser.js

@@ -45,26 +45,14 @@ var MapManipulator = {
     }
 };
 
+var realPosition;
 var panorama;
 var guessMap;
 var guessMarker;
 var googleLink;
 
 function initialize() {
-    panorama = new google.maps.StreetViewPanorama(document.getElementById('panorama'), {
-        position: realPosition,
-        disableDefaultUI: true,
-        linksControl: true,
-        showRoadLabels: false
-    });
-
-    panorama.addListener('position_changed', function () {
-        MapManipulator.rewriteGoogleLink();
-    });
-
-    panorama.addListener('pov_changed', function () {
-        MapManipulator.rewriteGoogleLink();
-    });
+    getNewPosition();
 
     guessMap = new google.maps.Map(document.getElementById('guessMap'), {
         disableDefaultUI: true,
@@ -90,6 +78,48 @@ function initialize() {
     });
 }
 
+function getNewPosition() {
+    var xhr = new XMLHttpRequest();
+    xhr.responseType = 'json';
+    xhr.onreadystatechange = function () {
+        if (this.readyState == 4 && this.status == 200) {
+            realPosition = this.response.position;
+
+            var sv = new google.maps.StreetViewService();
+            sv.getPanorama({ location: this.response.position, preference: google.maps.StreetViewPreference.BEST }, loadPano);
+        }
+    };
+    xhr.open('GET', 'getNewPosition.json', true);
+    xhr.send();
+}
+
+function loadPano(data, status) {
+    if (status !== google.maps.StreetViewStatus.OK) {
+        getNewPosition();
+        return;
+    }
+
+    if (panorama) {
+        panorama.setPano(data.location.pano);
+        return;
+    }
+
+    panorama = new google.maps.StreetViewPanorama(document.getElementById('panorama'), {
+        pano: data.location.pano,
+        disableDefaultUI: true,
+        linksControl: true,
+        showRoadLabels: false
+    });
+
+    panorama.addListener('position_changed', function () {
+        MapManipulator.rewriteGoogleLink();
+    });
+
+    panorama.addListener('pov_changed', function () {
+        MapManipulator.rewriteGoogleLink();
+    });
+}
+
 document.getElementById('guessButton').onclick = function () {
     if (!guessMarker) {
         return;
@@ -98,7 +128,13 @@ document.getElementById('guessButton').onclick = function () {
     var guessedPosition = guessMarker.getPosition();
     var distance = Util.calculateDistance(realPosition, { lat: guessedPosition.lat(), lng: guessedPosition.lng() });
 
-    alert('You were ' + distance + 'm close!');
+    alert('You were ' + (Math.round(distance) / 1000) + ' km close!');
 
-    this.blur();
+    this.disabled = true;
+    guessMarker.setMap(null);
+    guessMarker = null;
+    //TODO: fit to the same size as on init
+    guessMap.fitBounds(guessMapBounds);
+
+    getNewPosition();
 }

src/Controller/BaseController.php

@@ -1,24 +0,0 @@
-<?php namespace MapGuesser\Controller;
-
-abstract class BaseController
-{
-    protected string $view;
-
-    protected array $variables = [];
-
-    public function render() : string
-    {
-        $this->operate();
-
-        extract($this->variables);
-
-        ob_start();
-        require ROOT . '/views/' . $this->view . '.php';
-        $content = ob_get_contents();
-        ob_end_clean();
-
-        return $content;
-    }
-
-    abstract protected function operate() : void;
-}

src/Controller/ControllerInterface.php

@@ -0,0 +1,8 @@
+<?php namespace MapGuesser\Controller;
+
+use MapGuesser\View\ViewBase;
+
+interface ControllerInterface
+{
+    public function run(): ViewBase;
+}

src/Controller/GetNewPosition.php

@@ -0,0 +1,28 @@
+<?php namespace MapGuesser\Controller;
+
+use MapGuesser\Util\Geo\Position;
+use MapGuesser\View\JsonView;
+use MapGuesser\View\ViewBase;
+use mysqli;
+
+class GetNewPosition implements ControllerInterface
+{
+    public function run(): ViewBase
+    {
+        $mysql = new mysqli($_ENV['DB_HOST'], $_ENV['DB_USER'], $_ENV['DB_PASSWORD'], $_ENV['DB_NAME']);
+
+        // demo map
+        $mapId = 1;
+
+        // using RAND() for the time being, could be changed in the future
+        $stmt = $mysql->prepare('SELECT lat, lng FROM places WHERE map_id=? ORDER BY RAND() LIMIT 1');
+        $stmt->bind_param("i", $mapId);
+        $stmt->execute();
+        $place = $stmt->get_result()->fetch_assoc();
+
+        $position = new Position($place['lat'], $place['lng']);
+
+        $data = ['position' => $position->toArray()];
+        return new JsonView($data);
+    }
+}

src/Controller/GuessController.php

@@ -2,13 +2,13 @@
 
 use MapGuesser\Util\Geo\Bounds;
 use MapGuesser\Util\Geo\Position;
+use MapGuesser\View\HtmlView;
+use MapGuesser\View\ViewBase;
 use mysqli;
 
-class GuessController extends BaseController
+class GuessController implements ControllerInterface
 {
-    protected string $view = 'guess';
-
-    protected function operate() : void
+    public function run(): ViewBase
     {
         $mysql = new mysqli($_ENV['DB_HOST'], $_ENV['DB_USER'], $_ENV['DB_PASSWORD'], $_ENV['DB_NAME']);
 
@@ -29,6 +29,7 @@ class GuessController extends BaseController
         $realPosition = new Position($place['lat'], $place['lng']);
         $bounds = Bounds::createDirectly($map['bound_south_lat'], $map['bound_west_lng'], $map['bound_north_lat'], $map['bound_east_lng']);
 
-        $this->variables = compact('realPosition', 'bounds');
+        $data = compact('bounds');
+        return new HtmlView('guess', $data);
     }
 }

src/Util/Geo/Bounds.php

@@ -10,7 +10,7 @@ class Bounds
 
     private bool $initialized = false;
 
-    public static function createWithPosition(Position $position) : Bounds
+    public static function createWithPosition(Position $position): Bounds
     {
         $instance = new static();
 
@@ -19,7 +19,7 @@ class Bounds
         return $instance;
     }
 
-    public static function createDirectly(float $southLat, $westLng, $northLat, $eastLng) : Bounds
+    public static function createDirectly(float $southLat, $westLng, $northLat, $eastLng): Bounds
     {
         $instance = new static();
 

src/Util/Geo/Position.php

@@ -21,11 +21,16 @@ class Position
         return $this->lng;
     }
 
-    public function toJson(): string
+    public function toArray(): array
     {
-        return json_encode([
+        return [
             'lat' => $this->lat,
             'lng' => $this->lng,
-        ]);
+        ];
+    }
+
+    public function toJson(): string
+    {
+        return json_encode($this->toArray());
     }
 }

src/View/HtmlView.php

@@ -0,0 +1,29 @@
+<?php namespace MapGuesser\View;
+
+class HtmlView extends ViewBase
+{
+    private string $template;
+
+    public function __construct(string $template, array &$data = [])
+    {
+        $this->template = $template;
+        $this->data = &$data;
+    }
+
+    public function &render(): string
+    {
+        extract($this->data);
+
+        ob_start();
+        require ROOT . '/views/' . $this->template . '.php';
+        $content = ob_get_contents();
+        ob_end_clean();
+
+        return $content;
+    }
+
+    public function getContentType(): string
+    {
+        return 'text/html';
+    }
+}

src/View/JsonView.php

@@ -0,0 +1,21 @@
+<?php namespace MapGuesser\View;
+
+class JsonView extends ViewBase
+{
+    public function __construct(array &$data = [])
+    {
+        $this->data = &$data;
+    }
+
+    public function &render(): string
+    {
+        $content = json_encode($this->data);
+
+        return $content;
+    }
+
+    public function getContentType(): string
+    {
+        return 'application/json';
+    }
+}

src/View/ViewBase.php

@@ -0,0 +1,15 @@
+<?php namespace MapGuesser\View;
+
+abstract class ViewBase
+{
+    protected array $data;
+
+    public function &getData(): array
+    {
+        return $this->data;
+    }
+
+    abstract public function &render(): string;
+
+    abstract public function getContentType(): string;
+}

views/guess.php

@@ -14,7 +14,6 @@
         </div>
     </div>
     <script>
-        var realPosition = <?= $realPosition->toJson() ?>;
         var guessMapBounds = <?= $bounds->toJson() ?>;
     </script>
     <script src="static/js/mapguesser.js" async defer></script>