/*
 * Copyright 2018 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.tv.twopanelsettings.slices.compat;

import android.annotation.SuppressLint;
import android.content.Context;
import android.net.Uri;
import android.os.Build;
import android.os.Process;
import android.os.UserHandle;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.core.content.PermissionChecker;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.Set;

/** */
// // @RestrictTo(RestrictTo.Scope.LIBRARY)
@RequiresApi(api = 28)
// @Deprecated // Supported for TV
class SliceManagerWrapper extends SliceManager {

  private final com.android.tv.twopanelsettings.slices.base.SliceManager mManager;

  SliceManagerWrapper(Context context) {
    this(com.android.tv.twopanelsettings.slices.base.SliceManager.from(context));
  }

  SliceManagerWrapper(com.android.tv.twopanelsettings.slices.base.SliceManager manager) {
    mManager = manager;
  }

  @Override
  public @NonNull Set<SliceSpec> getPinnedSpecs(@NonNull Uri uri) {
    if (Build.VERSION.SDK_INT == 28) {
      uri = maybeAddCurrentUserId(uri);
    }
    return SliceConvert.wrap(mManager.getPinnedSpecs(uri));
  }

  @SuppressLint("WrongConstant") // conversion from platform definition
  @Override
  @PermissionChecker.PermissionResult
  public int checkSlicePermission(@NonNull Uri uri, int pid, int uid) {
    return mManager.checkSlicePermission(uri, pid, uid);
  }

  @Override
  public void grantSlicePermission(@NonNull String toPackage, @NonNull Uri uri) {
    mManager.grantSlicePermission(toPackage, uri);
  }

  @Override
  public void revokeSlicePermission(@NonNull String toPackage, @NonNull Uri uri) {
    mManager.revokeSlicePermission(toPackage, uri);
  }

  @NonNull
  @Override
  public List<Uri> getPinnedSlices() {
    return mManager.getPinnedSlices();
  }

  private Uri maybeAddCurrentUserId(Uri uri) {
    if (uri == null || uri.getAuthority().contains("@")) {
      return uri;
    }
    String auth = uri.getAuthority();
    return uri.buildUpon().encodedAuthority(getCurrentUserId() + "@" + auth).build();
  }

  private int getCurrentUserId() {
    UserHandle h = Process.myUserHandle();
    try {
      return (int) h.getClass().getDeclaredMethod("getIdentifier").invoke(h);
    } catch (IllegalAccessException e) {
      return 0;
    } catch (InvocationTargetException e) {
      return 0;
    } catch (NoSuchMethodException e) {
      return 0;
    }
  }
}