Clear calls history in one click

app/src/main/java/org/thunderdog/challegram/navigation/DrawerController.java

@@ -818,6 +818,9 @@ public boolean onLongClick (View v) {
             context.currentTdlib().ui().addAccount(context, true, true);
           }
         });
+      } else if (itemId == R.id.btn_calls) {
+        context.currentTdlib().ui().showClearCallHistoryOptions(this);
+        return true;
       }
       return false;
     }

app/src/main/java/org/thunderdog/challegram/telegram/Tdlib.java

@@ -11110,6 +11110,10 @@ public boolean canEditSlowMode (long chatId) {
     return false;
   }
 
+  public void clearCallsHistory (boolean revoke, @Nullable Runnable after) {
+    send(new TdApi.DeleteAllCallMessages(revoke), okHandler(after));
+  }
+
   public boolean isBroadcastGroup (long chatId) {
     TdApi.Supergroup supergroup = chatToSupergroup(chatId);
     return supergroup != null && supergroup.isBroadcastGroup;

app/src/main/java/org/thunderdog/challegram/telegram/TdlibUi.java

@@ -595,6 +595,31 @@ public void showDeleteOptions (ViewController<?> context, MessageWithProperties
     showDeleteOptions(context, new MessageWithProperties[] {message}, null);
   }
 
+  public void showClearCallHistoryOptions (ViewController<?> context) {
+    tdlib.send(new TdApi.SearchCallMessages("", 1, false), (result, error) -> {
+      if (error != null || result.messages.length == 0) {
+        return;
+      }
+      context.runOnUiThreadOptional(() ->
+        context.showSettings(new SettingsWrapBuilder(R.id.btn_delete)
+          .addHeaderItem(Lang.getString(R.string.AreYouSureClearCalls))
+          .setRawItems(new ListItem[] {
+            new ListItem(ListItem.TYPE_CHECKBOX_OPTION, R.id.btn_deleteAll, 0, R.string.DeleteCallsForEveryone, false)
+          })
+          .setIntDelegate((id, result2) -> {
+            if (id == R.id.btn_delete) {
+              boolean revoke = result2.get(R.id.btn_deleteAll) != 0;
+              tdlib.clearCallsHistory(revoke, () ->
+                UI.showToast(R.string.Done, Toast.LENGTH_SHORT)
+              );
+            }
+          })
+          .setSaveStr(R.string.Delete)
+          .setSaveColorId(ColorId.textNegative))
+      );
+    });
+  }
+
   public void showDeleteOptions (final ViewController<?> context, final MessageWithProperties[] messages, final @Nullable Runnable after) {
     if (context != null && messages != null && messages.length > 0) {
       if (deleteSuperGroupMessages(context, messages, after)) {

app/src/main/java/org/thunderdog/challegram/ui/CallListController.java

@@ -16,6 +16,7 @@
 
 import android.content.Context;
 import android.view.View;
+import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
@@ -33,6 +34,8 @@
 import org.thunderdog.challegram.data.CallItem;
 import org.thunderdog.challegram.data.CallSection;
 import org.thunderdog.challegram.data.TGFoundChat;
+import org.thunderdog.challegram.navigation.HeaderView;
+import org.thunderdog.challegram.navigation.MoreDelegate;
 import org.thunderdog.challegram.navigation.SettingsWrapBuilder;
 import org.thunderdog.challegram.navigation.ViewController;
 import org.thunderdog.challegram.telegram.DateChangeListener;
@@ -66,6 +69,7 @@ public class CallListController extends RecyclerViewController<Void> implements
   View.OnClickListener,
   Client.ResultHandler,
   MessageListener,
+  MoreDelegate,
   DateChangeListener,
   View.OnLongClickListener,
   BaseView.ActionListProvider, TdlibOptionListener {
@@ -83,6 +87,36 @@ public CharSequence getName () {
     return Lang.getString(R.string.Calls);
   }
 
+  @Override
+  protected int getMenuId () {
+    return messages != null && !messages.isEmpty() ? R.id.menu_btn_more : 0;
+  }
+
+  @Override
+  public void fillMenuItems (int id, HeaderView header, LinearLayout menu) {
+    if (id == R.id.menu_btn_more) {
+      header.addMoreButton(menu, this);
+    }
+  }
+
+  @Override
+  public void onMenuItemPressed (int id, View view) {
+    if (id == R.id.menu_btn_more) {
+      showMore(new int[] {R.id.btn_clear_recent_calls}, new String[] {Lang.getString(R.string.ClearRecentCalls)});
+    }
+  }
+
+  @Override
+  public void onMoreItemPressed (int id) {
+    if (id == R.id.btn_clear_recent_calls) {
+      tdlib.ui().showClearCallHistoryOptions(this);
+    }
+  }
+
+  public boolean hasRecentCalls () {
+    return messages != null && !messages.isEmpty();
+  }
+
   private SettingsAdapter adapter;
 
   @Override

app/src/main/java/org/thunderdog/challegram/ui/MainController.java

@@ -1482,6 +1482,12 @@ public boolean onPagerItemLongClick (int index) {
       TdApi.ChatList chatList = pagerChatLists.get(index);
       showChatListOptions(chatList);
       return true;
+    } else if (index == POSITION_CALLS) {
+      ViewController<?> controller = getCachedControllerForPosition(index);
+      if (controller instanceof CallListController && ((CallListController) controller).hasRecentCalls()) {
+        tdlib.ui().showClearCallHistoryOptions(this);
+        return true;
+      }
     }
     return false;
   }

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

@@ -1428,4 +1428,7 @@
   <item type="id" name="btn_playback_speed_1_2" />
   <item type="id" name="btn_playback_speed_1_5" />
   <item type="id" name="btn_playback_speed_2_0" />
-</resources>
+
+  <item type="id" name="btn_clear_recent_calls" />
+
+</resources>

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

@@ -5722,6 +5722,9 @@
   <string name="xBotUsers_one">%1$s monthly user</string>
   <string name="xBotUsers_other">%1$s monthly users</string>
 
+  <string name="AreYouSureClearCalls">Do you want to delete all recent calls?</string>
+  <string name="ClearRecentCalls">Clear recent calls</string>
+  <string name="DeleteCallsForEveryone">Delete for everyone</string>
   <string name="RestrictedContent">Restricted Content</string>
   <string name="SensitiveContent">Sensitive Content</string>