App timing (#123)

* log launch timing. recalculate play time to start timing.
* remove decimal points from time to start values

src/page/discover/view.js

@@ -37,29 +37,6 @@ class DiscoverPage extends React.PureComponent {
   };
 
   componentDidMount() {
-    // Track the total time taken if this is the first launch
-    AsyncStorage.getItem('firstLaunchTime').then(startTime => {
-      if (startTime !== null && !isNaN(parseInt(startTime, 10))) {
-        // We don't need this value anymore once we've retrieved it
-        AsyncStorage.removeItem('firstLaunchTime');
-
-        // We know this is the first app launch because firstLaunchTime is set and it"s a valid number
-        const start = parseInt(startTime, 10);
-        const now = moment().unix();
-        const delta = now - start;
-        AsyncStorage.getItem('firstLaunchSuspended').then(suspended => {
-          AsyncStorage.removeItem('firstLaunchSuspended');
-          const appSuspended = suspended === 'true';
-          if (NativeModules.Firebase) {
-            NativeModules.Firebase.track('first_run_time', {
-              total_seconds: delta,
-              app_suspended: appSuspended,
-            });
-          }
-        });
-      }
-    });
-
     const { sortByItem, fetchRewardedContent, fileList, followedTags } = this.props;
 
     this.buildTagCollection(followedTags);

src/page/file/view.js

@@ -610,7 +610,7 @@ class FilePage extends React.PureComponent {
     let timeToStartMillis, timeToStart;
     if (this.startTime) {
       timeToStartMillis = Date.now() - this.startTime;
-      timeToStart = Math.ceil(timeToStartMillis / 1000);
+      timeToStart = Math.ceil(timeToStartMillis / 1000.0);
       this.startTime = null;
     }
 
@@ -620,8 +620,8 @@ class FilePage extends React.PureComponent {
 
     let payload = { uri: uri };
     if (!isNaN(timeToStart)) {
-      payload['time_to_start_seconds'] = timeToStart;
-      payload['time_to_start_ms'] = timeToStartMillis;
+      payload['time_to_start_seconds'] = parseInt(timeToStart, 10);
+      payload['time_to_start_ms'] = parseInt(timeToStartMillis, 10);
     }
     NativeModules.Firebase.track('play', payload);
 
@@ -702,19 +702,24 @@ class FilePage extends React.PureComponent {
         [
           {
             text: __('OK'),
-            onPress: () => purchaseUri(uri, costInfo, download),
+            onPress: () => {
+              this.startTime = Date.now();
+              purchaseUri(uri, costInfo, download);
+            },
           },
           { text: __('Cancel') },
         ],
       );
     } else {
       // Free content. Just call purchaseUri directly.
+      this.startTime = Date.now();
       purchaseUri(uri, costInfo, download);
     }
   };
 
   onFileDownloadButtonPressed = () => {
-    const { claim, costInfo, contentType, purchaseUri, setPlayerVisible } = this.props;
+    this.startTime = Date.now();
+    const { claim, costInfo, contentType, setPlayerVisible } = this.props;
     const mediaType = Lbry.getMediaType(contentType);
     const isPlayable = mediaType === 'video' || mediaType === 'audio';
     const isViewable = mediaType === 'image' || mediaType === 'text';
@@ -729,7 +734,6 @@ class FilePage extends React.PureComponent {
     }
 
     if (isPlayable) {
-      this.startTime = Date.now();
       this.setState({ downloadPressed: true, autoPlayMedia: true, stopDownloadConfirmed: false });
     }
     if (isViewable) {

src/page/splash/view.js

@@ -67,6 +67,9 @@ class SplashScreen extends React.PureComponent {
         }
       }
     }
+
+    // splash screen is done at this point, next page to be displayed will be user-interactable
+    NativeModules.Firebase.logLaunchTiming();
   };
 
   componentWillReceiveProps(nextProps) {