// Copyright 2021 Google LLC
//
// 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.

import 'quantizer.dart';
import 'quantizer_wsmeans.dart';
import 'quantizer_wu.dart';
import 'src/point_provider_lab.dart';

/// QuantizerCelebi Quantizer.
class QuantizerCelebi implements Quantizer {
  @override
  Future<QuantizerResult> quantize(Iterable<int> pixels, int maxColors,
      {bool returnInputPixelToClusterPixel = false}) async {
    final QuantizerWu wu = QuantizerWu();
    final QuantizerResult wuResult = await wu.quantize(pixels, maxColors);
    final QuantizerResult wsmeansResult = QuantizerWsmeans.quantize(
        pixels, maxColors,
        startingClusters: wuResult.colorToCount.keys.toList(),
        pointProvider: const PointProviderLab(),
        returnInputPixelToClusterPixel: returnInputPixelToClusterPixel);
    return wsmeansResult;
  }
}
