import _extends from '@babel/runtime/helpers/esm/extends';
import * as React from 'react';
import isPropValid from '@emotion/is-prop-valid';
import { withEmotionCache, ThemeContext } from '@emotion/react';
import { getRegisteredStyles, registerStyles, insertStyles } from '@emotion/utils';
import { serializeStyles } from '@emotion/serialize';
import { useInsertionEffectAlwaysWithSyncFallback } from '@emotion/use-insertion-effect-with-fallbacks';

var testOmitPropsOnStringTag = isPropValid;

var testOmitPropsOnComponent = function testOmitPropsOnComponent(key) {
  return key !== 'theme';
};

var getDefaultShouldForwardProp = function getDefaultShouldForwardProp(tag) {
  return typeof tag === 'string' && // 96 is one less than the char code
  // for "a" so this is checking that
  // it's a lowercase character
  tag.charCodeAt(0) > 96 ? testOmitPropsOnStringTag : testOmitPropsOnComponent;
};
var composeShouldForwardProps = function composeShouldForwardProps(tag, options, isReal) {
  var shouldForwardProp;

  if (options) {
    var optionsShouldForwardProp = options.shouldForwardProp;
    shouldForwardProp = tag.__emotion_forwardProp && optionsShouldForwardProp ? function (propName) {
      return tag.__emotion_forwardProp(propName) && optionsShouldForwardProp(propName);
    } : optionsShouldForwardProp;
  }

  if (typeof shouldForwardProp !== 'function' && isReal) {
    shouldForwardProp = tag.__emotion_forwardProp;
  }

  return shouldForwardProp;
};

var ILLEGAL_ESCAPE_SEQUENCE_ERROR = "You have illegal escape sequence in your template literal, most likely inside content's property value.\nBecause you write your CSS inside a JavaScript string you actually have to do double escaping, so for example \"content: '\\00d7';\" should become \"content: '\\\\00d7';\".\nYou can read more about this here:\nhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#ES2018_revision_of_illegal_escape_sequences";
var isBrowser = typeof document !== 'undefined';

var Insertion = function Insertion(_ref) {
  var cache = _ref.cache,
      serialized = _ref.serialized,
      isStringTag = _ref.isStringTag;
  registerStyles(cache, serialized, isStringTag);
  var rules = useInsertionEffectAlwaysWithSyncFallback(function () {
    return insertStyles(cache, serialized, isStringTag);
  });

  if (!isBrowser && rules !== undefined) {
    var _ref2;

    var serializedNames = serialized.name;
    var next = serialized.next;

    while (next !== undefined) {
      serializedNames += ' ' + next.name;
      next = next.next;
    }

    return /*#__PURE__*/React.createElement("style", (_ref2 = {}, _ref2["data-emotion"] = cache.key + " " + serializedNames, _ref2.dangerouslySetInnerHTML = {
      __html: rules
    }, _ref2.nonce = cache.sheet.nonce, _ref2));
  }

  return null;
};

var createStyled = function createStyled(tag, options) {
  if (process.env.NODE_ENV !== 'production') {
    if (tag === undefined) {
      throw new Error('You are trying to create a styled element with an undefined component.\nYou may have forgotten to import it.');
    }
  }

  var isReal = tag.__emotion_real === tag;
  var baseTag = isReal && tag.__emotion_base || tag;
  var identifierName;
  var targetClassName;

  if (options !== undefined) {
    identifierName = options.label;
    targetClassName = options.target;
  }

  var shouldForwardProp = composeShouldForwardProps(tag, options, isReal);
  var defaultShouldForwardProp = shouldForwardProp || getDefaultShouldForwardProp(baseTag);
  var shouldUseAs = !defaultShouldForwardProp('as');
  return function () {
    var args = arguments;
    var styles = isReal && tag.__emotion_styles !== undefined ? tag.__emotion_styles.slice(0) : [];

    if (identifierName !== undefined) {
      styles.push("label:" + identifierName + ";");
    }

    if (args[0] == null || args[0].raw === undefined) {
      styles.push.apply(styles, args);
    } else {
      if (process.env.NODE_ENV !== 'production' && args[0][0] === undefined) {
        console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);
      }

      styles.push(args[0][0]);
      var len = args.length;
      var i = 1;

      for (; i < len; i++) {
        if (process.env.NODE_ENV !== 'production' && args[0][i] === undefined) {
          console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);
        }

        styles.push(args[i], args[0][i]);
      }
    } // $FlowFixMe: we need to cast StatelessFunctionalComponent to our PrivateStyledComponent class


    var Styled = withEmotionCache(function (props, cache, ref) {
      var FinalTag = shouldUseAs && props.as || baseTag;
      var className = '';
      var classInterpolations = [];
      var mergedProps = props;

      if (props.theme == null) {
        mergedProps = {};

        for (var key in props) {
          mergedProps[key] = props[key];
        }

        mergedProps.theme = React.useContext(ThemeContext);
      }

      if (typeof props.className === 'string') {
        className = getRegisteredStyles(cache.registered, classInterpolations, props.className);
      } else if (props.className != null) {
        className = props.className + " ";
      }

      var serialized = serializeStyles(styles.concat(classInterpolations), cache.registered, mergedProps);
      className += cache.key + "-" + serialized.name;

      if (targetClassName !== undefined) {
        className += " " + targetClassName;
      }

      var finalShouldForwardProp = shouldUseAs && shouldForwardProp === undefined ? getDefaultShouldForwardProp(FinalTag) : defaultShouldForwardProp;
      var newProps = {};

      for (var _key in props) {
        if (shouldUseAs && _key === 'as') continue;

        if ( // $FlowFixMe
        finalShouldForwardProp(_key)) {
          newProps[_key] = props[_key];
        }
      }

      newProps.className = className;
      newProps.ref = ref;
      return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(Insertion, {
        cache: cache,
        serialized: serialized,
        isStringTag: typeof FinalTag === 'string'
      }), /*#__PURE__*/React.createElement(FinalTag, newProps));
    });
    Styled.displayName = identifierName !== undefined ? identifierName : "Styled(" + (typeof baseTag === 'string' ? baseTag : baseTag.displayName || baseTag.name || 'Component') + ")";
    Styled.defaultProps = tag.defaultProps;
    Styled.__emotion_real = Styled;
    Styled.__emotion_base = baseTag;
    Styled.__emotion_styles = styles;
    Styled.__emotion_forwardProp = shouldForwardProp;
    Object.defineProperty(Styled, 'toString', {
      value: function value() {
        if (targetClassName === undefined && process.env.NODE_ENV !== 'production') {
          return 'NO_COMPONENT_SELECTOR';
        } // $FlowFixMe: coerce undefined to string


        return "." + targetClassName;
      }
    });

    Styled.withComponent = function (nextTag, nextOptions) {
      return createStyled(nextTag, _extends({}, options, nextOptions, {
        shouldForwardProp: composeShouldForwardProps(Styled, nextOptions, true)
      })).apply(void 0, styles);
    };

    return Styled;
  };
};

export { createStyled as default };