/*
 * Copyright 2019 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.builders;

import com.android.tv.twopanelsettings.slices.compat.Clock;
import com.android.tv.twopanelsettings.slices.compat.Slice;
import com.android.tv.twopanelsettings.slices.compat.SliceSpec;
import com.android.tv.twopanelsettings.slices.compat.SystemClock;

/** A copy of TemplateBuilderImpl from slices support lib. */
public abstract class TemplateBuilderImpl {

  private Slice.Builder mSliceBuilder;
  private final SliceSpec mSpec;
  private Clock mClock;

  protected TemplateBuilderImpl(Slice.Builder b, SliceSpec spec) {
    this(b, spec, new SystemClock());
  }

  protected TemplateBuilderImpl(Slice.Builder b, SliceSpec spec, Clock clock) {
    mSliceBuilder = b;
    mSpec = spec;
    mClock = clock;
  }

  protected void setBuilder(Slice.Builder builder) {
    mSliceBuilder = builder;
  }

  /** Construct the slice. */
  public Slice build() {
    mSliceBuilder.setSpec(mSpec);
    apply(mSliceBuilder);
    return mSliceBuilder.build();
  }

  public Slice.Builder getBuilder() {
    return mSliceBuilder;
  }

  public Slice.Builder createChildBuilder() {
    return new Slice.Builder(mSliceBuilder);
  }

  public abstract void apply(Slice.Builder builder);

  public Clock getClock() {
    return mClock;
  }
}