'use strict';

var React = require('react');
var core = require('@emotion/core');
var _commonjsHelpers = require('./_commonjsHelpers-aa8da8cd.js');
var index = require('./index-b3d32439.js');

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

var defineProperty = _defineProperty;

var weakMemoize = function weakMemoize(func) {
  // $FlowFixMe flow doesn't include all non-primitive types as allowed for weakmaps
  var cache = new WeakMap();
  return function (arg) {
    if (cache.has(arg)) {
      // $FlowFixMe
      return cache.get(arg);
    }

    var ret = func(arg);
    cache.set(arg, ret);
    return ret;
  };
};

var _extends_1 = _commonjsHelpers.createCommonjsModule(function (module) {
function _extends() {
  module.exports = _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);
}

module.exports = _extends;
});

var FORWARD_REF_STATICS = {
  '$$typeof': true,
  render: true,
  defaultProps: true,
  displayName: true,
  propTypes: true
};
var MEMO_STATICS = {
  '$$typeof': true,
  compare: true,
  defaultProps: true,
  displayName: true,
  propTypes: true,
  type: true
};
var TYPE_STATICS = {};
TYPE_STATICS[index.reactIs.ForwardRef] = FORWARD_REF_STATICS;
TYPE_STATICS[index.reactIs.Memo] = MEMO_STATICS;

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

var getTheme = function getTheme(outerTheme, theme) {
  if (typeof theme === 'function') {
    var mergedTheme = theme(outerTheme);

    if (process.env.NODE_ENV !== 'production' && (mergedTheme == null || typeof mergedTheme !== 'object' || Array.isArray(mergedTheme))) {
      throw new Error('[ThemeProvider] Please return an object from your theme function, i.e. theme={() => ({})}!');
    }

    return mergedTheme;
  }

  if (process.env.NODE_ENV !== 'production' && (theme == null || typeof theme !== 'object' || Array.isArray(theme))) {
    throw new Error('[ThemeProvider] Please make your theme prop a plain object');
  }

  return _objectSpread({}, outerTheme, {}, theme);
};

var createCacheWithTheme = weakMemoize(function (outerTheme) {
  return weakMemoize(function (theme) {
    return getTheme(outerTheme, theme);
  });
});

var ThemeProvider = function ThemeProvider(props) {
  return React.createElement(core.ThemeContext.Consumer, null, function (theme) {
    if (props.theme !== theme) {
      theme = createCacheWithTheme(theme)(props.theme);
    }

    return React.createElement(core.ThemeContext.Provider, {
      value: theme
    }, props.children);
  });
};

exports.ThemeProvider = ThemeProvider;
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