Fix to replace code lost during merge Path-Check#37 (Path-Check#55)

The LocationServices refactor merge lost the changes that happened to
adding "curation" to the point data (PR Path-Check#35).  This restores it.

app/services/LocationService.js

@@ -60,10 +60,31 @@ export default class LocationServices {
                         locationData = [];
                     }
 
-                    locationData.push(location);
-                    console.log('[GPS] Saving point:', locationData.length);
+                    // Curate the list of points
+                    SetStoreData('LOCATION_DATA', locationData); var nowUTC = new Date().toISOString();
+                    var unixtimeUTC = Date.parse(nowUTC);
+                    var unixtimeUTC_28daysAgo = unixtimeUTC - (60 * 60 * 24 * 1000 * 28);
+
+                    var curated = [];
+                    for (var i = 0; i < locationData.length; i++) {
+                        if (locationData[i]["time"] > unixtimeUTC_28daysAgo) {
+                            curated.push(locationData[i]);
+                        }
+                    }
 
-                    SetStoreData('LOCATION_DATA', locationData);
+                    // 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
+                    // for what we are doing.)
+                    console.log('[GPS] Saving point:', locationData.length);
+                    var lat_lon_time = {
+                        "latitude": location["latitude"],
+                        "longitude": location["longitude"],
+                        "time": unixtimeUTC
+                    };
+                    curated.push(lat_lon_time);
+
+                    SetStoreData('LOCATION_DATA', curated);
                 });
 
             // to perform long running operation on iOS
@@ -100,14 +121,14 @@ export default class LocationServices {
                 // we need to set delay or otherwise alert may not be shown
                 setTimeout(() =>
                     Alert.alert('App requires location tracking permission', 'Would you like to open app settings?', [{
-                            text: 'Yes',
-                            onPress: () => BackgroundGeolocation.showAppSettings()
-                        },
-                        {
-                            text: 'No',
-                            onPress: () => console.log('No Pressed'),
-                            style: 'cancel'
-                        }
+                        text: 'Yes',
+                        onPress: () => BackgroundGeolocation.showAppSettings()
+                    },
+                    {
+                        text: 'No',
+                        onPress: () => console.log('No Pressed'),
+                        style: 'cancel'
+                    }
                     ]), 1000);
             }
         });