"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

/**
 * FIXME: using number to represent discrete scale numbers is fragile in essence because of
 * floating point numbers imprecision.
 */
function getAndroidAssetSuffix(scale) {
  switch (scale) {
    case 0.75:
      return 'ldpi';

    case 1:
      return 'mdpi';

    case 1.5:
      return 'hdpi';

    case 2:
      return 'xhdpi';

    case 3:
      return 'xxhdpi';

    case 4:
      return 'xxxhdpi';

    default:
      return '';
  }
} // See https://developer.android.com/guide/topics/resources/drawable-resource.html


const drawableFileTypes = new Set(['gif', 'jpeg', 'jpg', 'png', 'webp', 'xml']);

function getAndroidResourceFolderName(asset, scale) {
  if (!drawableFileTypes.has(asset.type)) {
    return 'raw';
  }

  const suffix = getAndroidAssetSuffix(scale);

  if (!suffix) {
    throw new Error(`Don't know which android drawable suffix to use for asset: ${JSON.stringify(asset)}`);
  }

  const androidFolder = `drawable-${suffix}`;
  return androidFolder;
}

function getAndroidResourceIdentifier(asset) {
  const folderPath = getBasePath(asset);
  return `${folderPath}/${asset.name}`.toLowerCase().replace(/\//g, '_') // Encode folder structure in file name
  .replace(/([^a-z0-9_])/g, '') // Remove illegal chars
  .replace(/^assets_/, ''); // Remove "assets_" prefix
}

function getBasePath(asset) {
  let basePath = asset.httpServerLocation;

  if (basePath[0] === '/') {
    basePath = basePath.substr(1);
  }

  return basePath;
}

var _default = {
  getAndroidAssetSuffix,
  getAndroidResourceFolderName,
  getAndroidResourceIdentifier,
  getBasePath
};
exports.default = _default;

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