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/**
 * @preserve
 * Copyright 2015-2018 Igor Bezkrovnyi
 * All rights reserved. (MIT Licensed)
 *
 * common.ts - part of Image Quantization Library
 */
import { PointContainer } from '../utils/pointContainer';
import { Palette } from '../utils/palette';
import { ImageQuantizerYieldValue } from './imageQuantizerYieldValue';

export abstract class AbstractImageQuantizer {
  abstract quantize(
    pointContainer: PointContainer,
    palette: Palette,
  ): IterableIterator<ImageQuantizerYieldValue>;

  quantizeSync(pointContainer: PointContainer, palette: Palette) {
    for (const value of this.quantize(pointContainer, palette)) {
      if (value.pointContainer) {
        return value.pointContainer;
      }
    }

    throw new Error('unreachable');
  }
}