// Copyright 2023 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.

protocol Quantizer {
  func quantize(_ pixels: [Int], _ maxColors: Int, returnInputPixelToClusterPixel: Bool)
    -> QuantizerResult
}

class QuantizerResult {
  let colorToCount: [Int: Int]
  let inputPixelToClusterPixel: [Int: Int]

  init(_ colorToCount: [Int: Int], inputPixelToClusterPixel: [Int: Int] = [:]) {
    self.colorToCount = colorToCount
    self.inputPixelToClusterPixel = inputPixelToClusterPixel
  }
}
