Improve RestoreSet display

when user is asked to choose a backup to restore

app/build/generated/source/proto/debug/kotlin/com/stevesoltys/seedvault/proto/SnapshotKt.kt

@@ -537,6 +537,23 @@ public object SnapshotKt {
       public fun hasApk(): kotlin.Boolean {
         return _builder.hasApk()
       }
+
+      /**
+       * <code>uint64 size = 8;</code>
+       */
+      public var size: kotlin.Long
+        @JvmName("getSize")
+        get() = _builder.getSize()
+        @JvmName("setSize")
+        set(value) {
+          _builder.setSize(value)
+        }
+      /**
+       * <code>uint64 size = 8;</code>
+       */
+      public fun clearSize() {
+        _builder.clearSize()
+      }
     }
   }
   @kotlin.jvm.JvmName("-initializeapk")

app/src/main/java/com/stevesoltys/seedvault/repo/SnapshotCreator.kt

@@ -97,6 +97,7 @@ internal class SnapshotCreator(
             system = isSystemApp
             launchableSystemApp = isSystemApp && launchableSystemApps.contains(packageName)
             addAllChunkIds(chunkIds)
+            size = backupData.size
         }
         blobsMap.putAll(backupData.blobMap)
         metadataManager.onPackageBackedUp(packageInfo, backupType, backupData.size)

app/src/main/java/com/stevesoltys/seedvault/restore/RestoreSetAdapter.kt

@@ -6,9 +6,9 @@
 package com.stevesoltys.seedvault.restore
 
 import android.text.format.DateUtils.FORMAT_ABBREV_RELATIVE
-import android.text.format.DateUtils.HOUR_IN_MILLIS
+import android.text.format.DateUtils.MINUTE_IN_MILLIS
 import android.text.format.DateUtils.getRelativeTimeSpanString
-import android.text.format.Formatter
+import android.text.format.Formatter.formatShortFileSize
 import android.view.LayoutInflater
 import android.view.View
 import android.view.View.GONE
@@ -41,32 +41,40 @@ internal class RestoreSetAdapter(
     inner class RestoreSetViewHolder(private val v: View) : ViewHolder(v) {
 
         private val titleView = v.requireViewById<TextView>(R.id.titleView)
-        private val subtitleView = v.requireViewById<TextView>(R.id.subtitleView)
-        private val sizeView = v.requireViewById<TextView>(R.id.sizeView)
+        private val appView = v.requireViewById<TextView>(R.id.appView)
+        private val apkView = v.requireViewById<TextView>(R.id.apkView)
+        private val timeView = v.requireViewById<TextView>(R.id.timeView)
 
         internal fun bind(item: RestorableBackup) {
             v.setOnClickListener { listener.onRestorableBackupClicked(item) }
             titleView.text = item.name
 
-            val lastBackup = getRelativeTime(item.time)
-            val setup = getRelativeTime(item.token)
-            subtitleView.text =
-                v.context.getString(R.string.restore_restore_set_times, lastBackup, setup)
-            val size = item.size
-            if (size == null) {
-                sizeView.visibility = GONE
-            } else {
-                sizeView.text = v.context.getString(
-                    R.string.restore_restore_set_size,
-                    Formatter.formatShortFileSize(v.context, size),
+            appView.text = if (item.sizeAppData > 0) {
+                v.context.getString(
+                    R.string.restore_restore_set_apps,
+                    item.numAppData,
+                    formatShortFileSize(v.context, item.sizeAppData),
                 )
-                sizeView.visibility = VISIBLE
+            } else {
+                v.context.getString(R.string.restore_restore_set_apps_no_size, item.numAppData)
             }
+            appView.visibility = if (item.numAppData > 0) VISIBLE else GONE
+            apkView.text = if (item.sizeApks > 0) {
+                v.context.getString(
+                    R.string.restore_restore_set_apks,
+                    item.numApks,
+                    formatShortFileSize(v.context, item.sizeApks),
+                )
+            } else {
+                v.context.getString(R.string.restore_restore_set_apks_no_size, item.numApks)
+            }
+            apkView.visibility = if (item.numApks > 0) VISIBLE else GONE
+            timeView.text = getRelativeTime(item.time)
         }
 
         private fun getRelativeTime(time: Long): CharSequence {
             val now = System.currentTimeMillis()
-            return getRelativeTimeSpanString(time, now, HOUR_IN_MILLIS, FORMAT_ABBREV_RELATIVE)
+            return getRelativeTimeSpanString(time, now, MINUTE_IN_MILLIS, FORMAT_ABBREV_RELATIVE)
         }
 
     }

app/src/main/java/com/stevesoltys/seedvault/transport/restore/RestorableBackup.kt

@@ -7,6 +7,7 @@ package com.stevesoltys.seedvault.transport.restore
 
 import com.stevesoltys.seedvault.metadata.BackupMetadata
 import com.stevesoltys.seedvault.metadata.PackageMetadataMap
+import com.stevesoltys.seedvault.metadata.PackageState.APK_AND_DATA
 import com.stevesoltys.seedvault.proto.Snapshot
 
 sealed class RestorableBackupResult {
@@ -20,7 +21,6 @@ data class RestorableBackup(
     val snapshot: Snapshot? = null,
 ) {
 
-    // FIXME creating this mapping is expensive, a single call can take several seconds to complete
     constructor(repoId: String, snapshot: Snapshot) : this(
         backupMetadata = BackupMetadata.fromSnapshot(snapshot),
         repoId = repoId,
@@ -40,18 +40,33 @@ data class RestorableBackup(
         get() = backupMetadata.salt
 
     val time: Long
-        get() = backupMetadata.time
+        get() = snapshot?.token ?: backupMetadata.time
 
-    val size: Long
-        get() = snapshot?.blobsMap?.values?.sumOf { it.uncompressedLength.toLong() }
-            ?: backupMetadata.size
+    val size: Long = snapshot?.blobsMap?.values?.sumOf { it.uncompressedLength.toLong() }
+        ?: backupMetadata.size
 
     val deviceName: String
         get() = backupMetadata.deviceName
 
+    val user: String?
+        get() = snapshot?.user?.takeIf { it.isNotBlank() }
+
     val d2dBackup: Boolean
         get() = backupMetadata.d2dBackup
 
+    val numAppData: Int = snapshot?.appsMap?.values?.count { it.chunkIdsCount > 0 }
+        ?: packageMetadataMap.values.count { packageMetadata ->
+            packageMetadata.backupType != null && packageMetadata.state == APK_AND_DATA
+        }
+
+    val sizeAppData: Long = snapshot?.appsMap?.values?.sumOf { it.size }
+        ?: packageMetadataMap.values.sumOf { it.size ?: 0L }
+
+    val numApks: Int = snapshot?.appsMap?.values?.count { it.apk.splitsCount > 0 }
+        ?: packageMetadataMap.values.count { it.hasApk() }
+
+    val sizeApks: Long = size - sizeAppData
+
     val packageMetadataMap: PackageMetadataMap
         get() = backupMetadata.packageMetadataMap
 

app/src/main/proto/snapshot.proto

@@ -25,6 +25,7 @@ message Snapshot {
     bool launchableSystemApp = 5;
     repeated bytes chunkIds = 6;
     Apk apk = 7;
+    uint64 size = 8;
   }
 
   enum BackupType {

app/src/main/res/layout/list_item_restore_set.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   SPDX-FileCopyrightText: 2020 The Calyx Institute
   SPDX-License-Identifier: Apache-2.0
   -->
@@ -25,37 +24,56 @@
 
     <TextView
         android:id="@+id/titleView"
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:layout_marginStart="16dp"
         android:layout_marginTop="16dp"
-        android:textColor="?android:attr/textColorSecondary"
-        android:textSize="18sp"
+        android:textColor="?android:textColorPrimary"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toTopOf="@+id/appView"
+        app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/imageView"
         app:layout_constraintTop_toTopOf="parent"
         tools:text="Pixel 2 XL backup" />
 
     <TextView
-        android:id="@+id/subtitleView"
+        android:id="@+id/appView"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
-        android:textColor="?android:attr/textColorTertiary"
+        android:layout_marginTop="4dp"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="16sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="@+id/titleView"
         app:layout_constraintTop_toBottomOf="@+id/titleView"
-        tools:text="@string/restore_restore_set_times" />
+        tools:text="@string/restore_restore_set_apps" />
 
     <TextView
-        android:id="@+id/sizeView"
+        android:id="@+id/apkView"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        android:layout_marginBottom="16dp"
+        android:layout_marginTop="4dp"
+        android:textColor="?android:textColorTertiary"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toTopOf="@+id/timeView"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="@+id/titleView"
-        app:layout_constraintTop_toBottomOf="@+id/subtitleView"
-        tools:text="Size: 5 GB" />
+        app:layout_constraintTop_toBottomOf="@+id/appView"
+        tools:text="@string/restore_restore_set_apks" />
+
+    <TextView
+        android:id="@+id/timeView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="4dp"
+        android:layout_marginBottom="16dp"
+        android:gravity="end"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="@+id/titleView"
+        app:layout_constraintTop_toBottomOf="@+id/apkView"
+        tools:text="5 days ago" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -205,8 +205,10 @@
     <!-- Restore -->
     <string name="restore_title">Restore from backup</string>
     <string name="restore_choose_restore_set">Choose a backup to restore</string>
-    <string name="restore_restore_set_times">Last backup %1$s · First %2$s.</string>
-    <string name="restore_restore_set_size">Size: <xliff:g example="1 GB" id="size">%1$s</xliff:g></string>
+    <string name="restore_restore_set_apps">Has user data for <xliff:g example="42" id="apps">%1$d</xliff:g> apps (<xliff:g example="1 GB" id="size">%2$s</xliff:g>)</string>
+    <string name="restore_restore_set_apps_no_size">Has user data for <xliff:g example="42" id="apps">%1$d</xliff:g> apps</string>
+    <string name="restore_restore_set_apks">Contains <xliff:g example="42" id="apps">%1$d</xliff:g> apps (<xliff:g example="1 GB" id="size">%2$s</xliff:g>)</string>
+    <string name="restore_restore_set_apks_no_size">Contains <xliff:g example="42" id="apps">%1$d</xliff:g> apps</string>
     <string name="restore_skip">Don\'t restore</string>
     <string name="restore_skip_apps">Skip restoring apps</string>
     <string name="restore_invalid_location_title">No backups found</string>

app/src/test/java/com/stevesoltys/seedvault/repo/SnapshotCreatorTest.kt

@@ -77,6 +77,7 @@ internal class SnapshotCreatorTest : TransportTest() {
         assertEquals(name, s.appsMap[packageName]?.name)
         assertEquals(token, s.appsMap[packageName]?.time)
         assertEquals(Snapshot.BackupType.FULL, s.appsMap[packageName]?.type)
+        assertEquals(size, s.appsMap[packageName]?.size)
         assertEquals(isSystem, s.appsMap[packageName]?.system)
         assertEquals(isSystem, s.appsMap[packageName]?.launchableSystemApp)
         assertEquals(apkBackupData.chunkIds.forProto(), s.appsMap[packageName]?.chunkIdsList)