/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * <p>This source code is licensed under the MIT license found in the LICENSE file in the root
 * directory of this source tree.
 */
package com.facebook.react.views.view;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.RippleDrawable;
import android.os.Build;
import android.util.TypedValue;
import com.facebook.react.bridge.JSApplicationIllegalArgumentException;
import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.SoftAssertions;
import com.facebook.react.uimanager.ViewProps;

/**
 * Utility class that helps with converting android drawable description used in JS to an actual
 * instance of {@link Drawable}.
 */
public class ReactDrawableHelper {

  private static final TypedValue sResolveOutValue = new TypedValue();

  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  public static Drawable createDrawableFromJSDescription(
      Context context, ReadableMap drawableDescriptionDict) {
    String type = drawableDescriptionDict.getString("type");
    if ("ThemeAttrAndroid".equals(type)) {
      String attr = drawableDescriptionDict.getString("attribute");
      SoftAssertions.assertNotNull(attr);
      int attrID = context.getResources().getIdentifier(attr, "attr", "android");
      if (attrID == 0) {
        throw new JSApplicationIllegalArgumentException(
            "Attribute " + attr + " couldn't be found in the resource list");
      }
      if (context.getTheme().resolveAttribute(attrID, sResolveOutValue, true)) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
          return context
              .getResources()
              .getDrawable(sResolveOutValue.resourceId, context.getTheme());
        } else {
          return context.getResources().getDrawable(sResolveOutValue.resourceId);
        }
      } else {
        throw new JSApplicationIllegalArgumentException(
            "Attribute " + attr + " couldn't be resolved into a drawable");
      }
    } else if ("RippleAndroid".equals(type)) {
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
        throw new JSApplicationIllegalArgumentException(
            "Ripple drawable is not available on " + "android API <21");
      }
      int color;
      if (drawableDescriptionDict.hasKey(ViewProps.COLOR)
          && !drawableDescriptionDict.isNull(ViewProps.COLOR)) {
        color = drawableDescriptionDict.getInt(ViewProps.COLOR);
      } else {
        if (context
            .getTheme()
            .resolveAttribute(android.R.attr.colorControlHighlight, sResolveOutValue, true)) {
          color = context.getResources().getColor(sResolveOutValue.resourceId);
        } else {
          throw new JSApplicationIllegalArgumentException(
              "Attribute colorControlHighlight " + "couldn't be resolved into a drawable");
        }
      }
      Drawable mask = null;
      if (!drawableDescriptionDict.hasKey("borderless")
          || drawableDescriptionDict.isNull("borderless")
          || !drawableDescriptionDict.getBoolean("borderless")) {
        mask = new ColorDrawable(Color.WHITE);
      }
      ColorStateList colorStateList =
          new ColorStateList(new int[][] {new int[] {}}, new int[] {color});
      return new RippleDrawable(colorStateList, null, mask);
    } else {
      throw new JSApplicationIllegalArgumentException("Invalid type for android drawable: " + type);
    }
  }
}