/*
 * Kiwix Android
 * Copyright (c) 2024 Kiwix <android.kiwix.org>
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.kiwix.kiwixmobile.core.extensions

import android.text.TextUtils
import android.view.View
import androidx.appcompat.widget.Toolbar

fun Toolbar.getToolbarNavigationIcon(): View? {
  // check if contentDescription previously was set
  val hadContentDescription = !TextUtils.isEmpty(navigationContentDescription)
  val contentDescription =
    if (hadContentDescription) navigationContentDescription else "navigationIcon"
  // set the contentDescription on toolbar's navigationIcon
  navigationContentDescription = contentDescription
  val potentialViews = arrayListOf<View>()
  // find the view based on it's content description,
  // set programmatically or with android:contentDescription
  findViewsWithText(potentialViews, contentDescription, View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION)
  // Clear content description if not previously present
  if (!hadContentDescription) {
    navigationContentDescription = null
  }
  // Nav icon is always instantiated at this point because calling
  // setNavigationContentDescription ensures its existence
  return potentialViews.firstOrNull()
}
