store total distance, duration, etc.

app/src/main/java/org/y20k/trackbook/core/Tracklist.kt

@@ -33,7 +33,11 @@ import java.util.*
 @Parcelize
 data class Tracklist (@Expose val tracklistFormatVersion: Int = Keys.CURRENT_TRACKLIST_FORMAT_VERSION,
                       @Expose val tracklistElements: MutableList<TracklistElement> = mutableListOf<TracklistElement>(),
-                      @Expose var modificationDate: Date = Date()): Parcelable {
+                      @Expose var modificationDate: Date = Date(),
+                      @Expose var totalDistanceAll: Float = 0f,
+                      @Expose var totalDurationAll: Long = 0L,
+                      @Expose var totalRecordingPausedAll: Long = 0L,
+                      @Expose var totalStepCountAll: Float = 0f): Parcelable {
 
     /* Return trackelement for given track id */
     fun getTrackElement(trackId: Long): TracklistElement? {

app/src/main/java/org/y20k/trackbook/helpers/FileHelper.kt

@@ -181,6 +181,10 @@ object FileHelper {
         return suspendCoroutine { cont ->
             val tracklist: Tracklist = readTracklist(context)
             tracklist.tracklistElements.add(track.toTracklistElement(context))
+            tracklist.totalDistanceAll += track.length
+            tracklist.totalDurationAll += track.duration
+            tracklist.totalRecordingPausedAll += track.recordingPaused
+            tracklist.totalStepCountAll += track.stepCount
             cont.resume(saveTracklist(context, tracklist, modificationDate))
         }
     }

app/src/main/java/org/y20k/trackbook/helpers/TrackHelper.kt

@@ -20,9 +20,14 @@ package org.y20k.trackbook.helpers
 import android.content.Context
 import android.location.Location
 import android.widget.Toast
+import androidx.core.net.toUri
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.launch
 import org.y20k.trackbook.Keys
 import org.y20k.trackbook.R
 import org.y20k.trackbook.core.Track
+import org.y20k.trackbook.core.Tracklist
 import org.y20k.trackbook.core.TracklistElement
 import org.y20k.trackbook.core.WayPoint
 import java.text.SimpleDateFormat
@@ -248,4 +253,27 @@ object TrackHelper {
         return track
     }
 
+
+    /* Calculates total distance, duration and pause */
+    fun calculateAndSaveTrackTotals(context: Context, tracklist: Tracklist) {
+        CoroutineScope(IO).launch {
+            var totalDistanceAll: Float = 0f
+            var totalDurationAll: Long = 0L
+            var totalRecordingPausedAll: Long = 0L
+            var totalStepCountAll: Float = 0f
+            tracklist.tracklistElements.forEach { tracklistElement ->
+                val track: Track = FileHelper.readTrack(context, tracklistElement.trackUriString.toUri())
+                totalDistanceAll += track.length
+                totalDurationAll += track.duration
+                totalRecordingPausedAll += track.recordingPaused
+                totalStepCountAll += track.stepCount
+            }
+            tracklist.totalDistanceAll = totalDistanceAll
+            tracklist.totalDurationAll = totalDurationAll
+            tracklist.totalRecordingPausedAll = totalRecordingPausedAll
+            tracklist.totalStepCountAll = totalStepCountAll
+            FileHelper.saveTracklistSuspended(context, tracklist, GregorianCalendar.getInstance().time)
+        }
+    }
+
 }

app/src/main/java/org/y20k/trackbook/tracklist/TracklistAdapter.kt

@@ -25,6 +25,7 @@ import android.view.ViewGroup
 import android.widget.ImageButton
 import android.widget.TextView
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
@@ -66,6 +67,10 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
         // load tracklist
         tracklist = FileHelper.readTracklist(context)
         tracklist.tracklistElements.sortByDescending { tracklistElement -> tracklistElement.date  }
+        // calculate total duration and distance, if necessary
+        if (tracklist.tracklistElements.isNotEmpty() && tracklist.totalDurationAll == 0L) {
+            TrackHelper.calculateAndSaveTrackTotals(context, tracklist)
+        }
     }
 
 
@@ -88,8 +93,8 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
         trackElementViewHolder.trackNameView.text = tracklist.tracklistElements[position].name
         trackElementViewHolder.trackDataView.text = createTrackDataString(position)
         when (tracklist.tracklistElements[position].starred) {
-            true -> trackElementViewHolder.starButton.setImageDrawable(context.getDrawable(R.drawable.ic_star_filled_24dp))
+            true -> trackElementViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_filled_24dp))
-            false -> trackElementViewHolder.starButton.setImageDrawable(context.getDrawable(R.drawable.ic_star_outline_24dp))
+            false -> trackElementViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_outline_24dp))
         }
         trackElementViewHolder.trackElement.setOnClickListener {
             tracklistListener.onTrackElementTapped(tracklist.tracklistElements[position])
@@ -134,11 +139,11 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
         val starButton: ImageButton = view as ImageButton
         when (tracklist.tracklistElements[position].starred) {
             true -> {
-                starButton.setImageDrawable(context.getDrawable(R.drawable.ic_star_outline_24dp))
+                starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_outline_24dp))
                 tracklist.tracklistElements[position].starred = false
             }
             false -> {
-                starButton.setImageDrawable(context.getDrawable(R.drawable.ic_star_filled_24dp))
+                starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_filled_24dp))
                 tracklist.tracklistElements[position].starred = true
             }
         }