From 72098b9e8c2fed88578cab0ec708c7c4cab62cf5 Mon Sep 17 00:00:00 2001
From: Safe Path <safepath@dhcp-18-20-198-64.dyn.mit.edu>
Date: Thu, 19 Mar 2020 14:45:09 -0400
Subject: [PATCH 1/2] remove motiontracker requirement; adjust location params;
 backfill stationary points

---
 app/services/LocationService.js | 40 ++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/app/services/LocationService.js b/app/services/LocationService.js
index 720a62f8b0..256f7dd074 100644
--- a/app/services/LocationService.js
+++ b/app/services/LocationService.js
@@ -7,7 +7,9 @@ import { Alert } from 'react-native';
 
 var instanceCount = 0;
 var lastPointCount = 0;
-
+var locationInterval = 60000 * 5;  // Time (in milliseconds) between location information polls.  E.g. 60000*5 = 5 minutes
+// DEBUG: Reduce Time intervall for faster debugging
+// var locationInterval = 5000;
 
 function saveLocation(location) {
     // Persist this location data in our local storage of time/lat/lon values
@@ -35,6 +37,15 @@ function saveLocation(location) {
                 }
             }
 
+            // Backfill the stationary points, if available
+            if (curated.length >= 1) {
+                var lastLocationArray = curated[curated.length - 1];
+                var lastTS = lastLocationArray["time"];
+                for (; lastTS < unixtimeUTC - locationInterval; lastTS += locationInterval) {
+                    curated.push(JSON.parse(JSON.stringify(lastLocationArray)));
+                }
+            }
+
             // Save the location using the current lat-lon and the
             // calculated UTC time (maybe a few milliseconds off from
             // when the GPS data was collected, but that's unimportant
@@ -63,30 +74,23 @@ export default class LocationServices {
 
         BackgroundGeolocation.configure({
             desiredAccuracy: BackgroundGeolocation.HIGH_ACCURACY,
-            stationaryRadius: 50,
-            distanceFilter: 50,
+            stationaryRadius: 5,
+            distanceFilter: 5,
             notificationTitle: 'Private Kit Enabled',
             notificationText: 'Private Kit is securely storing your GPS coordinates once every five minutes on this device.',
             debug: false,    // when true, it beeps every time a loc is read
-            startOnBoot: false,
+            startOnBoot: true,
             stopOnTerminate: false,
-            locationProvider: BackgroundGeolocation.ACTIVITY_PROVIDER,
-
-            // DEBUG: Use these to get a faster output
-                /*interval: 2000,
-                fastestInterval: 2000, // Time (in milliseconds) between location information polls.  E.g. 60000*5 = 5 minutes
-                activitiesInterval: 2000,*/
+            locationProvider: BackgroundGeolocation.DISTANCE_FILTER_PROVIDER,
 
-            interval: 20000,
-            fastestInterval: 60000 * 5, // Time (in milliseconds) between location information polls.  E.g. 60000*5 = 5 minutes
-            activitiesInterval: 20000,
+            interval: locationInterval,
+            fastestInterval: locationInterval,
+            activitiesInterval: locationInterval,
 
+            activityType: "AutomotiveNavigation",
+            pauseLocationUpdates: false,
+            saveBatteryOnBackground: true,
             stopOnStillActivity: false,
-            postTemplate: {
-                lat: '@latitude',
-                lon: '@longitude',
-                foo: 'bar' // you can also add your own properties
-            }
         });
 
         BackgroundGeolocation.on('location', (location) => {

From fcf4aa0963722fdc06a5b49cdd0259abc80194b4 Mon Sep 17 00:00:00 2001
From: David Biga <biga.david@gmail.com>
Date: Thu, 19 Mar 2020 18:42:44 -0500
Subject: [PATCH 2/2] Remove Additional Stop Location Recording

---
 app/views/LocationTracking.js | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/app/views/LocationTracking.js b/app/views/LocationTracking.js
index 888b107192..e6b47df118 100644
--- a/app/views/LocationTracking.js
+++ b/app/views/LocationTracking.js
@@ -115,16 +115,10 @@ class LocationTracking extends Component {
                             </TouchableOpacity>
                             </>)
                             }
-                           
-                           {this.state.isLogging ?  
+
+                           {this.state.isLogging ?
                             <Text style={styles.sectionDescription}>It is currently logging your location privately every five minutes. Your location information will NOT leave your phone.</Text> :
                            <Text style={styles.sectionDescription} >NOTE: After clicking this button you may be prompted to grant Private Kit access to your location.</Text> }
-                           
-
-                    <View style={styles.block}>
-                        <Button title={"Stop Recording Location"} bgColor={colors.NEG_BUTTON} onPress={() => LocationServices.stop(this.props.navigation)} />
-                    </View>
-
                         </View>
                     </View>