Adds google route to bustracker routes

PET-EC-Sobral · Jul 19, 2016 · 5cfe94a · 5cfe94a
1 parent ca4df9e
commit 5cfe94a
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Showing 4 changed files with 57 additions and 1 deletion.
diff --git a/.gitignore b/.gitignore
@@ -32,3 +32,4 @@ application/config/database.php
 application/config/config.php
 docs
 user_guide
+application/google_routes/*
diff --git a/application/config/config.example.php b/application/config/config.example.php
@@ -517,3 +517,5 @@
 */
 
 $BusTrackerConfig["CRYPT_KEY"] = "mysecretcryptkey";
+$BusTrackerConfig["SALT_USER_PASSWORD"] = "mysalt";
+$BusTrackerConfig["GOOGLE_SERVER_KEY"] = "AIza...w4";
diff --git a/application/controllers/Routes.php b/application/controllers/Routes.php
@@ -82,6 +82,7 @@ function getRoutes(){
         if($this->input->get("points") === "true"){
             foreach ($routes as $route){
                 $route->points = $this->routes_model->getPoints($route->id_routes);
+                $route->googleRoute = $this->getGoogleRoute($route->points);
             }
         }
 
@@ -142,6 +143,12 @@ function addRoute(){
     	if($validator->valid){
             $this->loadModel();
             $input = json_decode($this->input->raw_input_stream);
+            $input->googleRoute = $this->getGoogleRoute($input->points);
+            $googleRoute = json_decode($this->getGoogleRoute($input->points), JSON_NUMERIC_CHECK); 
+            // check errors in google route
+            if(isset($googleRoute->error_message))
+                return $this->makeJsonRespose($input->googleRoute, 400);
+
             $id = $this->routes_model->insertRoute($input);
 
             return $this->makeJsonRespose(["id" => $id], 201); 
@@ -326,4 +333,41 @@ function deleteRoute($id){
 
         return $this->makeJsonRespose(["id" => $id], $statusCode);
     }
+    private function getGoogleRoute($points){
+        if(count($points) < 2)
+            return json_encode(['error_message' => 'At least 2 points is required', 
+                                'statusCode' => 400], JSON_NUMERIC_CHECK);
+
+        //make way points
+        $waypoints = "";
+        for($i = 1; $i < count($points) - 1;$i++)
+            $waypoints = $waypoints.$points[$i]->latitude.",".$points[$i]->longitude."|";
+
+        $origin = $points[0];
+        $destination = $points[count($points)-1];
+        $request = "https://maps.googleapis.com/maps/api/directions/json?".
+        "origin={$origin->latitude},{$origin->longitude}&".
+        "destination={$destination->latitude},{$destination->longitude}&".
+        "waypoints=via:{$waypoints}&".
+        "key=".Routes::GOOGLE_SERVER_KEY();
+
+        return Routes::requestGet($request);
+    }
+    private static function requestGet($url){
+        $curl = curl_init();
+
+        curl_setopt_array($curl, array(
+            CURLOPT_RETURNTRANSFER => 1,
+            CURLOPT_URL => $url
+        ));
+
+        $resp = curl_exec($curl);
+
+        curl_close($curl);
+        return $resp;
+    }
+    private static function GOOGLE_SERVER_KEY(){
+        global $BusTrackerConfig;
+        return $BusTrackerConfig["GOOGLE_SERVER_KEY"];
+    }
 }
diff --git a/application/models/Routes_model.php b/application/models/Routes_model.php
@@ -7,9 +7,11 @@ class Routes_model extends CI_Model{
 	const table = 'routes';
 	const pointsTable = 'points_route'; 
 	const busTable = 'bus';
+	public static $google_routes_path;
 
 	public function __construct(){
 		parent::__construct();
+		self::$google_routes_path = APPPATH."google_routes/";
 	}
 	public function index(){
 		return $this->db->get(self::table)->result();
@@ -20,8 +22,12 @@ public function getRoute($id){
 						->where(self::table.".id_routes = {$id}")
 						->get()->result();
 
-		if(isset($route[0]))
+		if(isset($route[0])){
+			//recover google route
+			$googleRoute = file_get_contents(self::$google_routes_path.$id);
+			$route[0]->googleRoute = json_decode($googleRoute, JSON_NUMERIC_CHECK);
 			return $route[0];
+		}
 
 		return null; 
 	}
@@ -48,6 +54,9 @@ public function insertRoute($route){
 
 		$this->db->insert_batch(self::pointsTable, $points);
 
+		//write google route information
+		file_put_contents(self::$google_routes_path.$id, $route->googleRoute);
+
 		return $id;
 	}
 	public function getBuses($id){