var _excluded = ["className", "style", "themeVars", "tag", "children"];

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

import React, { useMemo } from 'react';
import { kebabCase } from '../utils';
import ConfigProviderContext, { INITIAL_STATE } from './ConfigProviderContext';

function mapThemeVarsToCSSVars(themeVars, prefix) {
  var cssVars = {};
  Object.keys(themeVars).forEach(function (key) {
    if (key.toString().startsWith("--" + prefix + "-")) {
      cssVars[key] = themeVars[key];
    } else {
      cssVars["--" + prefix + "-" + kebabCase(key)] = themeVars[key];
    }
  });
  return cssVars;
}

var ConfigProvider = function ConfigProvider(_ref) {
  var className = _ref.className,
      style = _ref.style,
      themeVars = _ref.themeVars,
      _ref$tag = _ref.tag,
      tag = _ref$tag === void 0 ? 'div' : _ref$tag,
      children = _ref.children,
      props = _objectWithoutPropertiesLoose(_ref, _excluded);

  var TagElement = tag;
  var varStyle = useMemo(function () {
    if (themeVars) {
      return _extends({}, style, mapThemeVarsToCSSVars(themeVars, 'rv'));
    }

    return style;
  }, [style, themeVars]);
  return /*#__PURE__*/React.createElement(ConfigProviderContext.Provider, {
    value: _extends({}, INITIAL_STATE, props)
  }, /*#__PURE__*/React.createElement(TagElement, {
    className: className,
    style: varStyle
  }, children));
};

ConfigProvider.defaultProps = {
  themeVars: {}
};
export default ConfigProvider;