adjust banglerun/app.ts to not do some stupid self assign logic

apps/banglerun/log.js

@@ -6,10 +6,7 @@ function initLog(state) {
     const date = datetime.substr(2, 6);
     const time = datetime.substr(9, 6);
     const filename = `banglerun_${date}_${time}`;
-    state = state;
-    state.file = require('Storage').open(filename, 'w');
-    state.fileWritten = false;
-    return state;
+    return Object.assign(Object.assign({}, state), { file: require('Storage').open(filename, 'w'), fileWritten: false });
 }
 exports.initLog = initLog;
 function updateLog(state) {

apps/banglerun/log.ts

@@ -7,15 +7,17 @@ function initLog(state: AppState): AppStateWithLog {
   const date = datetime.substr(2, 6);
   const time = datetime.substr(9, 6);
   const filename = `banglerun_${date}_${time}`;
-  state = <AppStateWithLog> state;
-  state.file = require('Storage').open(filename, 'w');
-  state.fileWritten = false;
-  return state;
+  return {
+    ...state,
+    file: require('Storage').open(filename, 'w'),
+    fileWritten: false,
+  } as AppStateWithLog;
 }
 
 function updateLog(state: AppStateWithLog): void {
   if (!state.fileWritten) {
-    state.file.write([
+    state.file.write(
+      [
         'timestamp',
         'latitude',
         'longitude',
@@ -24,10 +26,12 @@ function updateLog(state: AppStateWithLog): void {
         'distance',
         'heartrate',
         'steps',
-    ].join(',') + '\n');
+      ].join(',') + '\n'
+    );
     state.fileWritten = true;
   }
-  state.file.write([
+  state.file.write(
+    [
       Date.now().toFixed(0),
       state.lat.toFixed(6),
       state.lon.toFixed(6),
@@ -36,7 +40,8 @@ function updateLog(state: AppStateWithLog): void {
       state.distance.toFixed(2),
       state.hr.toFixed(0),
       state.steps.toFixed(0),
-  ].join(',') + '\n');
+    ].join(',') + '\n'
+  );
 }
 
 export { initLog, updateLog };