From 74831c35e09344ef700efbdac4ec14d6590be40f Mon Sep 17 00:00:00 2001
From: uabdullah <uabdullah@google.com>
Date: Thu, 22 Mar 2018 18:32:26 -0700
Subject: Delete locally transcribed transcripts when transcription is turned
 off.

When a user turns off transcription setting we should delete all the voicemails locally transcribed by google. We do this by deleting all the transcripts associated with the source package of the app.

Bug: 74033229,76167428
Test: Unit Test
PiperOrigin-RevId: 190159353
Change-Id: I328aece594aa0e66de59e43fa3619b5e9ae15f78
---
 .../impl/settings/VisualVoicemailSettingsUtil.java | 75 +++++++++++++++++++++-
 1 file changed, 73 insertions(+), 2 deletions(-)

(limited to 'java/com/android/voicemail/impl/settings')

diff --git a/java/com/android/voicemail/impl/settings/VisualVoicemailSettingsUtil.java b/java/com/android/voicemail/impl/settings/VisualVoicemailSettingsUtil.java
index 3e006988e..e7248c40f 100644
--- a/java/com/android/voicemail/impl/settings/VisualVoicemailSettingsUtil.java
+++ b/java/com/android/voicemail/impl/settings/VisualVoicemailSettingsUtil.java
@@ -15,18 +15,22 @@
  */
 package com.android.voicemail.impl.settings;
 
+import android.content.ContentValues;
 import android.content.Context;
+import android.provider.CallLog;
+import android.provider.CallLog.Calls;
+import android.provider.VoicemailContract.Voicemails;
 import android.support.annotation.VisibleForTesting;
 import android.telecom.PhoneAccountHandle;
 import com.android.dialer.common.Assert;
 import com.android.dialer.common.concurrent.DialerExecutor.Worker;
 import com.android.dialer.common.concurrent.DialerExecutorComponent;
+import com.android.dialer.common.database.Selection;
 import com.android.voicemail.VoicemailComponent;
 import com.android.voicemail.impl.OmtpVvmCarrierConfigHelper;
 import com.android.voicemail.impl.VisualVoicemailPreferences;
 import com.android.voicemail.impl.VvmLog;
 import com.android.voicemail.impl.sync.VvmAccountManager;
-import com.android.voicemail.impl.utils.VoicemailDatabaseUtil;
 
 /** Save whether or not a particular account is enabled in shared to be retrieved later. */
 public class VisualVoicemailSettingsUtil {
@@ -88,6 +92,28 @@ public class VisualVoicemailSettingsUtil {
         .edit()
         .putBoolean(TRANSCRIBE_VOICEMAILS_KEY, isEnabled)
         .apply();
+
+    if (!isEnabled) {
+      VvmLog.i(
+          "VisualVoicemailSettingsUtil.setVoicemailTranscriptionEnabled",
+          "clear all Google transcribed voicemail.");
+      DialerExecutorComponent.get(context)
+          .dialerExecutorFactory()
+          .createNonUiTaskBuilder(new ClearGoogleTranscribedVoicemailTranscriptionWorker(context))
+          .onSuccess(
+              (result) ->
+                  VvmLog.i(
+                      "VisualVoicemailSettingsUtil.setVoicemailTranscriptionEnabled",
+                      "voicemail transciptions cleared successfully"))
+          .onFailure(
+              (throwable) ->
+                  VvmLog.e(
+                      "VisualVoicemailSettingsUtil.setVoicemailTranscriptionEnabled",
+                      "unable to clear Google transcribed voicemails",
+                      throwable))
+          .build()
+          .executeParallel(null);
+    }
   }
 
   public static void setVoicemailDonationEnabled(
@@ -153,6 +179,7 @@ public class VisualVoicemailSettingsUtil {
     return prefs.contains(IS_ENABLED_KEY);
   }
 
+  /** Delete all the voicemails whose source_package field matches this package */
   private static class VoicemailDeleteWorker implements Worker<Void, Void> {
     private final Context context;
 
@@ -162,9 +189,53 @@ public class VisualVoicemailSettingsUtil {
 
     @Override
     public Void doInBackground(Void unused) {
-      int deleted = VoicemailDatabaseUtil.deleteAll(context);
+      int deleted =
+          context
+              .getContentResolver()
+              .delete(Voicemails.buildSourceUri(context.getPackageName()), null, null);
+
       VvmLog.i("VisualVoicemailSettingsUtil.doInBackground", "deleted " + deleted + " voicemails");
       return null;
     }
   }
+
+  /**
+   * Clears all the voicemail transcripts in the call log whose source_package field matches this
+   * package
+   */
+  private static class ClearGoogleTranscribedVoicemailTranscriptionWorker
+      implements Worker<Void, Void> {
+    private final Context context;
+
+    ClearGoogleTranscribedVoicemailTranscriptionWorker(Context context) {
+      this.context = context;
+    }
+
+    @Override
+    public Void doInBackground(Void unused) {
+
+      ContentValues contentValues = new ContentValues();
+      contentValues.put(Voicemails.TRANSCRIPTION, "");
+
+      Selection selection =
+          Selection.builder()
+              .and(Selection.column(CallLog.Calls.TYPE).is("=", Calls.VOICEMAIL_TYPE))
+              .and(Selection.column(Voicemails.SOURCE_PACKAGE).is("=", context.getPackageName()))
+              .build();
+
+      int cleared =
+          context
+              .getContentResolver()
+              .update(
+                  Calls.CONTENT_URI_WITH_VOICEMAIL,
+                  contentValues,
+                  selection.getSelection(),
+                  selection.getSelectionArgs());
+
+      VvmLog.i(
+          "VisualVoicemailSettingsUtil.doInBackground",
+          "cleared " + cleared + " voicemail transcription");
+      return null;
+    }
+  }
 }
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