Storing the current track in pouchdb.

src/components/map/gpx-record.tsx

@@ -24,7 +24,7 @@ const GpxRecord: React.FC<{}> = () => {
     if (isRecording) {
       stopBackgroundGeolocation(watcher_id);
     } else {
-      startBackgroundGeolocation().then((result) => {
+      startBackgroundGeolocation(db).then((result) => {
         setWatcher_id(result);
       });
     }

src/db/tracks.ts

@@ -4,6 +4,7 @@ import {
   string_to_bytes,
   bytes_to_base64,
 } from '@openpgp/asmcrypto.js';
+import { DBWrapper } from 'workbox-core/_private';
 
 export const pushTrack = (db: any, payload: any) => {
   const sha = new Sha256();
@@ -19,7 +20,61 @@ export const pushTrack = (db: any, payload: any) => {
     console.log(`Digest: ${_id}`);
   }
   const doc = { _id, type: 'Track', ...payload };
-//  console.log(JSON.stringify(doc));
+  //  console.log(JSON.stringify(doc));
   db.put(doc);
 };
 
+const CURRENT_TRACK = '---current track---';
+
+const initialTrack = {
+  _id: CURRENT_TRACK,
+  type: 'Track',
+  track: {
+    $: {
+      version: '1.1',
+      creator: 'dyomedea version 0.000001',
+      xmlns: 'http://www.topografix.com/GPX/1/1',
+      'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+      'xsi:schemaLocation':
+        'http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/GpxExtensions/v3 http://www8.garmin.com/xmlschemas/GpxExtensionsv3.xsd http://www.garmin.com/xmlschemas/WaypointExtension/v1 http://www8.garmin.com/xmlschemas/WaypointExtensionv1.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v1 http://www.garmin.com/xmlschemas/TrackPointExtensionv1.xsd',
+      'xmlns:gpxx': 'http://www.garmin.com/xmlschemas/GpxExtensions/v3',
+      'xmlns:wptx1': 'http://www.garmin.com/xmlschemas/WaypointExtension/v1',
+      'xmlns:gpxtpx': 'http://www.garmin.com/xmlschemas/TrackPointExtension/v1',
+    },
+    metadata: {
+      name: 'Tbd',
+      desc: 'Tbd',
+      time: '2022-08-27T21:35:01.000Z',
+    },
+    trk: [
+      {
+        name: 'Tbd',
+        trkseg: [
+          {
+            trkpt: [],
+          },
+        ],
+      },
+    ],
+  },
+  metadata: {
+    lastModified: '2022-08-27T21:35:02.000Z',
+  },
+};
+
+export const appendTrkpt = async (db: any, trkpt: any) => {
+  var track: any;
+  await db.get(CURRENT_TRACK)
+    .then((result: any) => {
+      track = result;
+    })
+    .catch(() => {
+      track = initialTrack;
+    });
+  track.metadata.lastModified = trkpt.time;
+  const currentTrkseg = track.track.trk.at(-1).trkseg.at(-1);
+  currentTrkseg.trkpt.push(trkpt);
+  db.put(track).then((response: any) => {
+    console.log(`db.put(track), response: ${JSON.stringify(response)}`);
+  });
+};

src/lib/background-geolocation.ts

@@ -1,5 +1,6 @@
 import { BackgroundGeolocationPlugin } from '@capacitor-community/background-geolocation';
 import { registerPlugin } from '@capacitor/core';
+import { appendTrkpt } from '../db/tracks';
 
 const BackgroundGeolocation = registerPlugin<BackgroundGeolocationPlugin>(
   'BackgroundGeolocation'
@@ -34,7 +35,7 @@ const backgroundGeolocationConfig = {
   distanceFilter: 1,
 };
 
-export const startBackgroundGeolocation = async () => {
+export const startBackgroundGeolocation = async (db: any) => {
   const locationHandler = (location: any, error: any) => {
     console.log('com.dyomedea.dyomedea  LOG', ' - Callback');
     if (error) {
@@ -57,6 +58,19 @@ export const startBackgroundGeolocation = async () => {
     }
     console.log(location);
     if (location !== undefined) {
+      appendTrkpt(db, {
+        $: {
+          lat: location.latitude,
+          lon: location.longitude,
+        },
+        ele: location.altitude,
+        time: new Date(location.time).toISOString(),
+        extensions: {
+          speed: location.speed,
+          accuracy: location.accuracy,
+        },
+      });
+
       //setCenter([location.latitude, location.longitude]);
       //setPosition([location.latitude, location.longitude]);
       //   dispatch(