[ADD] start of api calls

app/src/main/java/com/a1/nextlocation/network/ApiHandler.java

@@ -3,8 +3,14 @@ package com.a1.nextlocation.network;
 import com.a1.nextlocation.data.Location;
 import com.a1.nextlocation.data.Route;
 
+import java.io.IOException;
+import java.util.Objects;
+import java.util.concurrent.atomic.AtomicReference;
+
 import okhttp3.MediaType;
 import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
 
 public enum ApiHandler {
     INSTANCE;
@@ -12,11 +18,46 @@ public enum ApiHandler {
 
     private static String TAG = ApiHandler.class.getCanonicalName();
     public static final MediaType JSON = MediaType.get("application/json; charset=utf-8");
+    private final String BASE_URL = "https://api.openrouteservice.org/v2/directions/";
+    private final String API_KEY = "5b3ce3597851110001cf6248d4eee2099f724255918adc71cc502b2a";
+    private final String DIRECTIONS_MODE = "foot_walking";
 
     private OkHttpClient client = new OkHttpClient();
 
     public Route getDirections(Location startLocation, Location endLocation) {
-        return null;
+        return getDirections(startLocation.getCoordinates(),endLocation.getCoordinates());
+    }
+
+    public Route getDirections(double startLat, double startLong, double endLat, double endLong) {
+        return getDirections(startLat + "," + startLong, endLat + "," + endLong);
+    }
+
+    public Route getDirections(String startLocation, String endLocation) {
+        String requestUrl = BASE_URL + DIRECTIONS_MODE + "?api_key=" + API_KEY + "&start=" +startLocation + "&end=" + endLocation;
+        AtomicReference<Route> res = null;
+        Thread t = new Thread(() -> {
+
+            Request request = new Request.Builder().url(requestUrl).build();
+
+            try (Response response = client.newCall(request).execute()) {
+                if (response.body() != null) {
+                    String responseString = Objects.requireNonNull(response.body()).string();
+                    
+                }
+
+            } catch (IOException e) {
+
+            }
+        });
+
+        t.start();
+
+        try {
+            t.join();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        return res.get();
     }