import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import React from 'react';
import PropTypes from 'prop-types';
import { exactProp } from '@material-ui/utils';
import createGenerateClassName from '../createGenerateClassName';
import { create } from 'jss';
import jssPreset from '../jssPreset'; // Default JSS instance.

const jss = create(jssPreset()); // Use a singleton or the provided one by the context.
//
// The counter-based approach doesn't tolerate any mistake.
// It's much safer to use the same counter everywhere.

const generateClassName = createGenerateClassName(); // Exported for test purposes

export const sheetsManager = new Map();
const defaultOptions = {
  disableGeneration: false,
  generateClassName,
  jss,
  sheetsCache: null,
  sheetsManager,
  sheetsRegistry: null
};
export const StylesContext = React.createContext(defaultOptions);

if (process.env.NODE_ENV !== 'production') {
  StylesContext.displayName = 'StylesContext';
}

let injectFirstNode;
export default function StylesProvider(props) {
  const {
    children,
    injectFirst = false,
    disableGeneration = false
  } = props,
        localOptions = _objectWithoutPropertiesLoose(props, ["children", "injectFirst", "disableGeneration"]);

  const outerOptions = React.useContext(StylesContext);

  const context = _extends({}, outerOptions, {
    disableGeneration
  }, localOptions);

  if (process.env.NODE_ENV !== 'production') {
    if (typeof window === 'undefined' && !context.sheetsManager) {
      console.error('Material-UI: You need to use the ServerStyleSheets API when rendering on the server.');
    }
  }

  if (process.env.NODE_ENV !== 'production') {
    if (context.jss.options.insertionPoint && injectFirst) {
      console.error('Material-UI: You cannot use a custom insertionPoint and <StylesContext injectFirst> at the same time.');
    }
  }

  if (process.env.NODE_ENV !== 'production') {
    if (injectFirst && localOptions.jss) {
      console.error('Material-UI: You cannot use the jss and injectFirst props at the same time.');
    }
  }

  if (!context.jss.options.insertionPoint && injectFirst && typeof window !== 'undefined') {
    if (!injectFirstNode) {
      const head = document.head;
      injectFirstNode = document.createComment('mui-inject-first');
      head.insertBefore(injectFirstNode, head.firstChild);
    }

    context.jss = create({
      plugins: jssPreset().plugins,
      insertionPoint: injectFirstNode
    });
  }

  return /*#__PURE__*/React.createElement(StylesContext.Provider, {
    value: context
  }, children);
}
process.env.NODE_ENV !== "production" ? StylesProvider.propTypes = {
  /**
   * Your component tree.
   */
  children: PropTypes.node.isRequired,

  /**
   * You can disable the generation of the styles with this option.
   * It can be useful when traversing the React tree outside of the HTML
   * rendering step on the server.
   * Let's say you are using react-apollo to extract all
   * the queries made by the interface server-side - you can significantly speed up the traversal with this prop.
   */
  disableGeneration: PropTypes.bool,

  /**
   * JSS's class name generator.
   */
  generateClassName: PropTypes.func,

  /**
   * By default, the styles are injected last in the <head> element of the page.
   * As a result, they gain more specificity than any other style sheet.
   * If you want to override Material-UI's styles, set this prop.
   */
  injectFirst: PropTypes.bool,

  /**
   * JSS's instance.
   */
  jss: PropTypes.object,

  /**
   * @ignore
   */
  serverGenerateClassName: PropTypes.func,

  /**
   * @ignore
   *
   * Beta feature.
   *
   * Cache for the sheets.
   */
  sheetsCache: PropTypes.object,

  /**
   * @ignore
   *
   * The sheetsManager is used to deduplicate style sheet injection in the page.
   * It's deduplicating using the (theme, styles) couple.
   * On the server, you should provide a new instance for each request.
   */
  sheetsManager: PropTypes.object,

  /**
   * @ignore
   *
   * Collect the sheets.
   */
  sheetsRegistry: PropTypes.object
} : void 0;

if (process.env.NODE_ENV !== 'production') {
  process.env.NODE_ENV !== "production" ? StylesProvider.propTypes = exactProp(StylesProvider.propTypes) : void 0;
}