/**
 * @license
 * Copyright 2016 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import type {
  CssVendorPropertyMap,
  JsVendorPropertyMap,
  PrefixedCssPropertyName,
  PrefixedJsEventType,
  StandardCssPropertyName,
  StandardJsEventType,
} from './types';

const cssPropertyNameMap: CssVendorPropertyMap = {
  animation: {
    prefixed: '-webkit-animation',
    standard: 'animation',
  },
  transform: {
    prefixed: '-webkit-transform',
    standard: 'transform',
  },
  transition: {
    prefixed: '-webkit-transition',
    standard: 'transition',
  },
};

const jsEventTypeMap: JsVendorPropertyMap = {
  animationend: {
    cssProperty: 'animation',
    prefixed: 'webkitAnimationEnd',
    standard: 'animationend',
  },
  animationiteration: {
    cssProperty: 'animation',
    prefixed: 'webkitAnimationIteration',
    standard: 'animationiteration',
  },
  animationstart: {
    cssProperty: 'animation',
    prefixed: 'webkitAnimationStart',
    standard: 'animationstart',
  },
  transitionend: {
    cssProperty: 'transition',
    prefixed: 'webkitTransitionEnd',
    standard: 'transitionend',
  },
};

function isWindow(windowObj: Window): boolean {
  return (
    Boolean(windowObj.document) &&
    typeof windowObj.document.createElement === 'function'
  );
}

export function getCorrectPropertyName(
  windowObj: Window,
  cssProperty: StandardCssPropertyName,
): StandardCssPropertyName | PrefixedCssPropertyName {
  if (isWindow(windowObj) && cssProperty in cssPropertyNameMap) {
    const el = windowObj.document.createElement('div');
    const { standard, prefixed } = cssPropertyNameMap[cssProperty];
    const isStandard = standard in el.style;
    return isStandard ? standard : prefixed;
  }
  return cssProperty;
}

export function getCorrectEventName(
  windowObj: Window,
  eventType: StandardJsEventType,
): StandardJsEventType | PrefixedJsEventType {
  if (isWindow(windowObj) && eventType in jsEventTypeMap) {
    const el = windowObj.document.createElement('div');
    const { standard, prefixed, cssProperty } = jsEventTypeMap[eventType];
    const isStandard = cssProperty in el.style;
    return isStandard ? standard : prefixed;
  }
  return eventType;
}