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"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = createStyled;
exports.shouldForwardProp = shouldForwardProp;
exports.systemDefaultTheme = void 0;
var _styledEngine = _interopRequireWildcard(require("@mui/styled-engine"));
var _deepmerge = require("@mui/utils/deepmerge");
var _capitalize = _interopRequireDefault(require("@mui/utils/capitalize"));
var _getDisplayName = _interopRequireDefault(require("@mui/utils/getDisplayName"));
var _createTheme = _interopRequireDefault(require("../createTheme"));
var _styleFunctionSx = _interopRequireDefault(require("../styleFunctionSx"));
var _preprocessStyles = _interopRequireDefault(require("../preprocessStyles"));
/* eslint-disable no-underscore-dangle */
/* eslint-disable no-labels */
/* eslint-disable no-lone-blocks */

const systemDefaultTheme = exports.systemDefaultTheme = (0, _createTheme.default)();

// Update /system/styled/#api in case if this changes
function shouldForwardProp(prop) {
  return prop !== 'ownerState' && prop !== 'theme' && prop !== 'sx' && prop !== 'as';
}
function defaultOverridesResolver(slot) {
  if (!slot) {
    return null;
  }
  return (_props, styles) => styles[slot];
}
function attachTheme(props, themeId, defaultTheme) {
  props.theme = isObjectEmpty(props.theme) ? defaultTheme : props.theme[themeId] || props.theme;
}
function processStyle(props, style) {
  /*
   * Style types:
   *  - null/undefined
   *  - string
   *  - CSS style object: { [cssKey]: [cssValue], variants }
   *  - Processed style object: { style, variants, isProcessed: true }
   *  - Array of any of the above
   */

  const resolvedStyle = typeof style === 'function' ? style(props) : style;
  if (Array.isArray(resolvedStyle)) {
    return resolvedStyle.flatMap(subStyle => processStyle(props, subStyle));
  }
  if (Array.isArray(resolvedStyle?.variants)) {
    let rootStyle;
    if (resolvedStyle.isProcessed) {
      rootStyle = resolvedStyle.style;
    } else {
      const {
        variants,
        ...otherStyles
      } = resolvedStyle;
      rootStyle = otherStyles;
    }
    return processStyleVariants(props, resolvedStyle.variants, [rootStyle]);
  }
  if (resolvedStyle?.isProcessed) {
    return resolvedStyle.style;
  }
  return resolvedStyle;
}
function processStyleVariants(props, variants, results = []) {
  let mergedState; // We might not need it, initialized lazily

  variantLoop: for (let i = 0; i < variants.length; i += 1) {
    const variant = variants[i];
    if (typeof variant.props === 'function') {
      mergedState ?? (mergedState = {
        ...props,
        ...props.ownerState,
        ownerState: props.ownerState
      });
      if (!variant.props(mergedState)) {
        continue;
      }
    } else {
      for (const key in variant.props) {
        if (props[key] !== variant.props[key] && props.ownerState?.[key] !== variant.props[key]) {
          continue variantLoop;
        }
      }
    }
    if (typeof variant.style === 'function') {
      mergedState ?? (mergedState = {
        ...props,
        ...props.ownerState,
        ownerState: props.ownerState
      });
      results.push(variant.style(mergedState));
    } else {
      results.push(variant.style);
    }
  }
  return results;
}
function createStyled(input = {}) {
  const {
    themeId,
    defaultTheme = systemDefaultTheme,
    rootShouldForwardProp = shouldForwardProp,
    slotShouldForwardProp = shouldForwardProp
  } = input;
  function styleAttachTheme(props) {
    attachTheme(props, themeId, defaultTheme);
  }
  const styled = (tag, inputOptions = {}) => {
    // If `tag` is already a styled component, filter out the `sx` style function
    // to prevent unnecessary styles generated by the composite components.
    (0, _styledEngine.internal_mutateStyles)(tag, styles => styles.filter(style => style !== _styleFunctionSx.default));
    const {
      name: componentName,
      slot: componentSlot,
      skipVariantsResolver: inputSkipVariantsResolver,
      skipSx: inputSkipSx,
      // TODO v6: remove `lowercaseFirstLetter()` in the next major release
      // For more details: https://github.com/mui/material-ui/pull/37908
      overridesResolver = defaultOverridesResolver(lowercaseFirstLetter(componentSlot)),
      ...options
    } = inputOptions;

    // if skipVariantsResolver option is defined, take the value, otherwise, true for root and false for other slots.
    const skipVariantsResolver = inputSkipVariantsResolver !== undefined ? inputSkipVariantsResolver :
    // TODO v6: remove `Root` in the next major release
    // For more details: https://github.com/mui/material-ui/pull/37908
    componentSlot && componentSlot !== 'Root' && componentSlot !== 'root' || false;
    const skipSx = inputSkipSx || false;
    let shouldForwardPropOption = shouldForwardProp;

    // TODO v6: remove `Root` in the next major release
    // For more details: https://github.com/mui/material-ui/pull/37908
    if (componentSlot === 'Root' || componentSlot === 'root') {
      shouldForwardPropOption = rootShouldForwardProp;
    } else if (componentSlot) {
      // any other slot specified
      shouldForwardPropOption = slotShouldForwardProp;
    } else if (isStringTag(tag)) {
      // for string (html) tag, preserve the behavior in emotion & styled-components.
      shouldForwardPropOption = undefined;
    }
    const defaultStyledResolver = (0, _styledEngine.default)(tag, {
      shouldForwardProp: shouldForwardPropOption,
      label: generateStyledLabel(componentName, componentSlot),
      ...options
    });
    const transformStyle = style => {
      // On the server Emotion doesn't use React.forwardRef for creating components, so the created
      // component stays as a function. This condition makes sure that we do not interpolate functions
      // which are basically components used as a selectors.
      if (typeof style === 'function' && style.__emotion_real !== style) {
        return function styleFunctionProcessor(props) {
          return processStyle(props, style);
        };
      }
      if ((0, _deepmerge.isPlainObject)(style)) {
        const serialized = (0, _preprocessStyles.default)(style);
        if (!serialized.variants) {
          return serialized.style;
        }
        return function styleObjectProcessor(props) {
          return processStyle(props, serialized);
        };
      }
      return style;
    };
    const muiStyledResolver = (...expressionsInput) => {
      const expressionsHead = [];
      const expressionsBody = expressionsInput.map(transformStyle);
      const expressionsTail = [];

      // Preprocess `props` to set the scoped theme value.
      // This must run before any other expression.
      expressionsHead.push(styleAttachTheme);
      if (componentName && overridesResolver) {
        expressionsTail.push(function styleThemeOverrides(props) {
          const theme = props.theme;
          const styleOverrides = theme.components?.[componentName]?.styleOverrides;
          if (!styleOverrides) {
            return null;
          }
          const resolvedStyleOverrides = {};

          // TODO: v7 remove iteration and use `resolveStyleArg(styleOverrides[slot])` directly
          // eslint-disable-next-line guard-for-in
          for (const slotKey in styleOverrides) {
            resolvedStyleOverrides[slotKey] = processStyle(props, styleOverrides[slotKey]);
          }
          return overridesResolver(props, resolvedStyleOverrides);
        });
      }
      if (componentName && !skipVariantsResolver) {
        expressionsTail.push(function styleThemeVariants(props) {
          const theme = props.theme;
          const themeVariants = theme?.components?.[componentName]?.variants;
          if (!themeVariants) {
            return null;
          }
          return processStyleVariants(props, themeVariants);
        });
      }
      if (!skipSx) {
        expressionsTail.push(_styleFunctionSx.default);
      }

      // This function can be called as a tagged template, so the first argument would contain
      // CSS `string[]` values.
      if (Array.isArray(expressionsBody[0])) {
        const inputStrings = expressionsBody.shift();

        // We need to add placeholders in the tagged template for the custom functions we have
        // possibly added (attachTheme, overrides, variants, and sx).
        const placeholdersHead = new Array(expressionsHead.length).fill('');
        const placeholdersTail = new Array(expressionsTail.length).fill('');
        let outputStrings;
        // prettier-ignore
        {
          outputStrings = [...placeholdersHead, ...inputStrings, ...placeholdersTail];
          outputStrings.raw = [...placeholdersHead, ...inputStrings.raw, ...placeholdersTail];
        }

        // The only case where we put something before `attachTheme`
        expressionsHead.unshift(outputStrings);
      }
      const expressions = [...expressionsHead, ...expressionsBody, ...expressionsTail];
      const Component = defaultStyledResolver(...expressions);
      if (tag.muiName) {
        Component.muiName = tag.muiName;
      }
      if (process.env.NODE_ENV !== 'production') {
        Component.displayName = generateDisplayName(componentName, componentSlot, tag);
      }
      return Component;
    };
    if (defaultStyledResolver.withConfig) {
      muiStyledResolver.withConfig = defaultStyledResolver.withConfig;
    }
    return muiStyledResolver;
  };
  return styled;
}
function generateDisplayName(componentName, componentSlot, tag) {
  if (componentName) {
    return `${componentName}${(0, _capitalize.default)(componentSlot || '')}`;
  }
  return `Styled(${(0, _getDisplayName.default)(tag)})`;
}
function generateStyledLabel(componentName, componentSlot) {
  let label;
  if (process.env.NODE_ENV !== 'production') {
    if (componentName) {
      // TODO v6: remove `lowercaseFirstLetter()` in the next major release
      // For more details: https://github.com/mui/material-ui/pull/37908
      label = `${componentName}-${lowercaseFirstLetter(componentSlot || 'Root')}`;
    }
  }
  return label;
}
function isObjectEmpty(object) {
  // eslint-disable-next-line
  for (const _ in object) {
    return false;
  }
  return true;
}

// https://github.com/emotion-js/emotion/blob/26ded6109fcd8ca9875cc2ce4564fee678a3f3c5/packages/styled/src/utils.js#L40
function isStringTag(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;
}
function lowercaseFirstLetter(string) {
  if (!string) {
    return string;
  }
  return string.charAt(0).toLowerCase() + string.slice(1);
}