/*
 * Copyright 2025 coze-dev Authors
 *
 * 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 Browser from 'bowser';

const browser = Browser.getParser(window.navigator.userAgent);

let getIsMobileCache: boolean | undefined;
/**
 * Is it a mobile device?
 * Note: iPad is not a mobile device
 */
const isMobile = () => browser.getPlatformType(true).includes('mobile');

export const getIsMobile = () => {
  if (typeof getIsMobileCache === 'undefined') {
    getIsMobileCache = isMobile();
  }
  return getIsMobileCache;
};

let getIsIPhoneOrIPadCache: boolean | undefined;
/**
 * Code provided by gpt-4
 */
export const getIsIPhoneOrIPad = () => {
  if (typeof getIsIPhoneOrIPadCache === 'undefined') {
    const { userAgent } = navigator;
    const isAppleDevice = /iPad|iPhone|iPod/.test(userAgent);
    const isIPadOS =
      userAgent.includes('Macintosh') &&
      'ontouchstart' in document.documentElement;

    getIsIPhoneOrIPadCache = isAppleDevice || isIPadOS;
  }

  return getIsIPhoneOrIPadCache;
};

let getIsIPadCache: boolean | undefined;
/**
 * Code provided by gpt-4
 */
export const getIsIPad = () => {
  if (typeof getIsIPadCache === 'undefined') {
    const { userAgent } = navigator;
    const isIPadDevice = /iPad/.test(userAgent);
    const isIPadOS =
      userAgent.includes('Macintosh') &&
      'ontouchstart' in document.documentElement;

    getIsIPadCache = isIPadDevice || isIPadOS;
  }

  return getIsIPadCache;
};

export const getIsMobileOrIPad = () => getIsMobile() || getIsIPhoneOrIPad();

export const getIsSafari = () => browser.getBrowserName(true) === 'safari';