import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _typeof from "@babel/runtime/helpers/esm/typeof";

/**
 * @author Kuitos
 * @homepage https://github.com/kuitos/
 * @since 2019-02-25
 * fork from https://github.com/systemjs/systemjs/blob/master/src/extras/global.js
 */
var isIE11 = typeof navigator !== 'undefined' && navigator.userAgent.indexOf('Trident') !== -1;

function shouldSkipProperty(global, p) {
  if (!global.hasOwnProperty(p) || !isNaN(p) && p < global.length) return true;

  if (isIE11) {
    // https://github.com/kuitos/import-html-entry/pull/32，最小化 try 范围
    try {
      return global[p] && typeof window !== 'undefined' && global[p].parent === window;
    } catch (err) {
      return true;
    }
  } else {
    return false;
  }
} // safari unpredictably lists some new globals first or second in object order


var firstGlobalProp, secondGlobalProp, lastGlobalProp;
export function getGlobalProp(global) {
  var cnt = 0;
  var lastProp;
  var hasIframe = false;

  for (var p in global) {
    if (shouldSkipProperty(global, p)) continue; // 遍历 iframe，检查 window 上的属性值是否是 iframe，是则跳过后面的 first 和 second 判断

    for (var i = 0; i < window.frames.length && !hasIframe; i++) {
      var frame = window.frames[i];

      if (frame === global[p]) {
        hasIframe = true;
        break;
      }
    }

    if (!hasIframe && (cnt === 0 && p !== firstGlobalProp || cnt === 1 && p !== secondGlobalProp)) return p;
    cnt++;
    lastProp = p;
  }

  if (lastProp !== lastGlobalProp) return lastProp;
}
export function noteGlobalProps(global) {
  // alternatively Object.keys(global).pop()
  // but this may be faster (pending benchmarks)
  firstGlobalProp = secondGlobalProp = undefined;

  for (var p in global) {
    if (shouldSkipProperty(global, p)) continue;
    if (!firstGlobalProp) firstGlobalProp = p;else if (!secondGlobalProp) secondGlobalProp = p;
    lastGlobalProp = p;
  }

  return lastGlobalProp;
}
export function getInlineCode(match) {
  var start = match.indexOf('>') + 1;
  var end = match.lastIndexOf('<');
  return match.substring(start, end);
}
export function defaultGetPublicPath(entry) {
  if (_typeof(entry) === 'object') {
    return '/';
  }

  try {
    var _URL = new URL(entry, location.href),
        origin = _URL.origin,
        pathname = _URL.pathname;

    var paths = pathname.split('/'); // 移除最后一个元素

    paths.pop();
    return "".concat(origin).concat(paths.join('/'), "/");
  } catch (e) {
    console.warn(e);
    return '';
  }
} // Detect whether browser supports `<script type=module>` or not

export function isModuleScriptSupported() {
  var s = document.createElement('script');
  return 'noModule' in s;
} // RIC and shim for browsers setTimeout() without it

export var requestIdleCallback = window.requestIdleCallback || function requestIdleCallback(cb) {
  var start = Date.now();
  return setTimeout(function () {
    cb({
      didTimeout: false,
      timeRemaining: function timeRemaining() {
        return Math.max(0, 50 - (Date.now() - start));
      }
    });
  }, 1);
};
export function readResAsString(response, autoDetectCharset) {
  // 未启用自动检测
  if (!autoDetectCharset) {
    return response.text();
  } // 如果没headers，发生在test环境下的mock数据，为兼容原有测试用例


  if (!response.headers) {
    return response.text();
  } // 如果没返回content-type，走默认逻辑


  var contentType = response.headers.get('Content-Type');

  if (!contentType) {
    return response.text();
  } // 解析content-type内的charset
  // Content-Type: text/html; charset=utf-8
  // Content-Type: multipart/form-data; boundary=something
  // GET请求下不会出现第二种content-type


  var charset = 'utf-8';
  var parts = contentType.split(';');

  if (parts.length === 2) {
    var _parts$1$split = parts[1].split('='),
        _parts$1$split2 = _slicedToArray(_parts$1$split, 2),
        value = _parts$1$split2[1];

    var encoding = value && value.trim();

    if (encoding) {
      charset = encoding;
    }
  } // 如果还是utf-8，那么走默认，兼容原有逻辑，这段代码删除也应该工作


  if (charset.toUpperCase() === 'UTF-8') {
    return response.text();
  } // 走流读取，编码可能是gbk，gb2312等，比如sofa 3默认是gbk编码


  return response.blob().then(function (file) {
    return new Promise(function (resolve, reject) {
      var reader = new window.FileReader();

      reader.onload = function () {
        resolve(reader.result);
      };

      reader.onerror = reject;
      reader.readAsText(file, charset);
    });
  });
}
var evalCache = {};
export function evalCode(scriptSrc, code) {
  var key = scriptSrc;

  if (!evalCache[key]) {
    var functionWrappedCode = "window.__TEMP_EVAL_FUNC__ = function(){".concat(code, "}");
    (0, eval)(functionWrappedCode);
    evalCache[key] = window.__TEMP_EVAL_FUNC__;
    delete window.__TEMP_EVAL_FUNC__;
  }

  var evalFunc = evalCache[key];
  evalFunc.call(window);
}