From fdf632e213b88219411705fff775311a4e2c0c6d Mon Sep 17 00:00:00 2001
From: Roman Tsisyk <roman@tsisyk.com>
Date: Sat, 12 Feb 2022 07:44:40 +0300
Subject: [PATCH] [android] Update A-GPS data automatically once per day

Signed-off-by: Roman Tsisyk <roman@tsisyk.com>
---
 android/AndroidManifest.xml                   |  1 +
 .../maps/location/LocationHelper.java         | 26 ++++++++++++++++++-
 android/src/com/mapswithme/util/Config.java   | 11 ++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
index ba8315ece8..1e680e37e9 100644
--- a/android/AndroidManifest.xml
+++ b/android/AndroidManifest.xml
@@ -24,6 +24,7 @@
       android:required="false"/>
   <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
   <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+  <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
   <uses-permission android:name="android.permission.INTERNET"/>
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
   <!--
diff --git a/android/src/com/mapswithme/maps/location/LocationHelper.java b/android/src/com/mapswithme/maps/location/LocationHelper.java
index 059d1b4f9e..fa95403475 100644
--- a/android/src/com/mapswithme/maps/location/LocationHelper.java
+++ b/android/src/com/mapswithme/maps/location/LocationHelper.java
@@ -18,13 +18,14 @@ import com.mapswithme.maps.base.Initializable;
 import com.mapswithme.maps.bookmarks.data.FeatureId;
 import com.mapswithme.maps.bookmarks.data.MapObject;
 import com.mapswithme.maps.routing.RoutingController;
+import com.mapswithme.util.Config;
 import com.mapswithme.util.Listeners;
 import com.mapswithme.util.LocationUtils;
+import com.mapswithme.util.NetworkPolicy;
 import com.mapswithme.util.PermissionsUtils;
 import com.mapswithme.util.Utils;
 import com.mapswithme.util.log.Logger;
 import com.mapswithme.util.log.LoggerFactory;
-import com.mapswithme.util.Config;
 
 public enum LocationHelper implements Initializable<Context>, AppBackgroundTracker.OnTransitionListener
 {
@@ -46,6 +47,8 @@ public enum LocationHelper implements Initializable<Context>, AppBackgroundTrack
   private static final long INTERVAL_NAVIGATION_BICYCLE_MS = 1000;
   private static final long INTERVAL_NAVIGATION_PEDESTRIAN_MS = 1000;
 
+  private static final long AGPS_EXPIRATION_TIME_MS = 16 * 60 * 60 * 1000; // 16 hours
+
   @SuppressWarnings("NotNullFieldNotInitialized")
   @NonNull
   private Context mContext;
@@ -542,6 +545,7 @@ public enum LocationHelper implements Initializable<Context>, AppBackgroundTrack
                 new Throwable());
       return;
     }
+    checkForAgpsUpdates();
     checkProviderInitialization();
     //noinspection ConstantConditions
     mLocationProvider.start();
@@ -570,6 +574,26 @@ public enum LocationHelper implements Initializable<Context>, AppBackgroundTrack
     mSensorHelper.stop();
   }
 
+  private void checkForAgpsUpdates()
+  {
+    if (!NetworkPolicy.getCurrentNetworkUsageStatus())
+      return;
+
+    long previousTimestamp = Config.getAgpsTimestamp();
+    long currentTimestamp = System.currentTimeMillis();
+    if (previousTimestamp + AGPS_EXPIRATION_TIME_MS > currentTimestamp)
+    {
+      mLogger.d(TAG, "A-GPS should be up to date");
+      return;
+    }
+
+    mLogger.d(TAG, "Requesting new A-GPS data");
+    Config.setAgpsTimestamp(currentTimestamp);
+    final LocationManager manager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
+    manager.sendExtraCommand(LocationManager.GPS_PROVIDER, "force_xtra_injection", null);
+    manager.sendExtraCommand(LocationManager.GPS_PROVIDER, "force_time_injection", null);
+  }
+
   /**
    * Attach UI to helper.
    */
diff --git a/android/src/com/mapswithme/util/Config.java b/android/src/com/mapswithme/util/Config.java
index 5b05b45e60..6698b6a7ec 100644
--- a/android/src/com/mapswithme/util/Config.java
+++ b/android/src/com/mapswithme/util/Config.java
@@ -40,6 +40,7 @@ public final class Config
   private static final String KEY_MISC_AD_FORBIDDEN = "AdForbidden";
   private static final String KEY_MISC_ENABLE_SCREEN_SLEEP = "EnableScreenSleep";
   private static final String KEY_MISC_SHOW_ON_LOCK_SCREEN = "ShowOnLockScreen";
+  private static final String KEY_MISC_AGPS_TIMESTAMP = "AGPSTimestamp";
 
   private Config() {}
 
@@ -309,6 +310,16 @@ public final class Config
     return getBool(KEY_MISC_USE_MOBILE_DATA_ROAMING, false);
   }
 
+  public static void setAgpsTimestamp(long timestamp)
+  {
+    setLong(KEY_MISC_AGPS_TIMESTAMP, timestamp);
+  }
+
+  public static long getAgpsTimestamp()
+  {
+    return getLong(KEY_MISC_AGPS_TIMESTAMP, 0L);
+  }
+
   public static boolean isTransliteration()
   {
     return nativeGetTransliteration();