/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.setupwizardlib.util;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.InsetDrawable;
import android.os.Build;
import android.view.View;

/** Provides convenience methods to handle drawable layout directions in different SDK versions. */
public class DrawableLayoutDirectionHelper {

  /**
   * Creates an {@link android.graphics.drawable.InsetDrawable} according to the layout direction of
   * {@code view}.
   */
  @SuppressLint("InlinedApi") // Use of View.LAYOUT_DIRECTION_RTL is guarded by version check
  public static InsetDrawable createRelativeInsetDrawable(
      Drawable drawable, int insetStart, int insetTop, int insetEnd, int insetBottom, View view) {
    boolean isRtl =
        Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1
            && view.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
    return createRelativeInsetDrawable(
        drawable, insetStart, insetTop, insetEnd, insetBottom, isRtl);
  }

  /**
   * Creates an {@link android.graphics.drawable.InsetDrawable} according to the layout direction of
   * {@code context}.
   */
  @SuppressLint("InlinedApi") // Use of View.LAYOUT_DIRECTION_RTL is guarded by version check
  public static InsetDrawable createRelativeInsetDrawable(
      Drawable drawable,
      int insetStart,
      int insetTop,
      int insetEnd,
      int insetBottom,
      Context context) {
    boolean isRtl = false;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
      final int layoutDirection = context.getResources().getConfiguration().getLayoutDirection();
      isRtl = layoutDirection == View.LAYOUT_DIRECTION_RTL;
    }
    return createRelativeInsetDrawable(
        drawable, insetStart, insetTop, insetEnd, insetBottom, isRtl);
  }

  /**
   * Creates an {@link android.graphics.drawable.InsetDrawable} according to {@code
   * layoutDirection}.
   */
  @SuppressLint("InlinedApi") // Given layoutDirection will not be View.LAYOUT_DIRECTION_RTL if
  // SDK version doesn't support it.
  public static InsetDrawable createRelativeInsetDrawable(
      Drawable drawable,
      int insetStart,
      int insetTop,
      int insetEnd,
      int insetBottom,
      int layoutDirection) {
    return createRelativeInsetDrawable(
        drawable,
        insetStart,
        insetTop,
        insetEnd,
        insetBottom,
        layoutDirection == View.LAYOUT_DIRECTION_RTL);
  }

  private static InsetDrawable createRelativeInsetDrawable(
      Drawable drawable,
      int insetStart,
      int insetTop,
      int insetEnd,
      int insetBottom,
      boolean isRtl) {
    if (isRtl) {
      return new InsetDrawable(drawable, insetEnd, insetTop, insetStart, insetBottom);
    } else {
      return new InsetDrawable(drawable, insetStart, insetTop, insetEnd, insetBottom);
    }
  }
}