import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import _extends from "@babel/runtime/helpers/esm/extends";
import * as React from "react";
import { clsx } from "../../../clsx/dist/clsx.js";
import PropTypes from "../../../prop-types/index.js";
import styled from "../styles/styled.js";
import { getSkeletonUtilityClass } from "./skeletonClasses.js";
import { jsx } from "react/jsx-runtime";
import { useDefaultProps } from "../DefaultPropsProvider/DefaultPropsProvider.js";
import composeClasses from "../node_modules/@mui/utils/esm/composeClasses/composeClasses.js";
import { getUnit, toUnitless } from "../styles/cssUtils.js";
import { css, keyframes } from "../../../@emotion/react/dist/emotion-react.browser.esm.js";
import { alpha } from "../../system/esm/colorManipulator.js";
const _excluded = ["animation", "className", "component", "height", "style", "variant", "width"];
let _ = (t) => t, _t, _t2, _t3, _t4;
const useUtilityClasses = (ownerState) => {
  const {
    classes,
    variant,
    animation,
    hasChildren,
    width,
    height
  } = ownerState;
  const slots = {
    root: ["root", variant, animation, hasChildren && "withChildren", hasChildren && !width && "fitContent", hasChildren && !height && "heightAuto"]
  };
  return composeClasses(slots, getSkeletonUtilityClass, classes);
};
const pulseKeyframe = keyframes(_t || (_t = _`
  0% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }

  100% {
    opacity: 1;
  }
`));
const waveKeyframe = keyframes(_t2 || (_t2 = _`
  0% {
    transform: translateX(-100%);
  }

  50% {
    /* +0.5s of delay between each loop */
    transform: translateX(100%);
  }

  100% {
    transform: translateX(100%);
  }
`));
const SkeletonRoot = styled("span", {
  name: "MuiSkeleton",
  slot: "Root",
  overridesResolver: (props, styles) => {
    const {
      ownerState
    } = props;
    return [styles.root, styles[ownerState.variant], ownerState.animation !== false && styles[ownerState.animation], ownerState.hasChildren && styles.withChildren, ownerState.hasChildren && !ownerState.width && styles.fitContent, ownerState.hasChildren && !ownerState.height && styles.heightAuto];
  }
})(({
  theme,
  ownerState
}) => {
  const radiusUnit = getUnit(theme.shape.borderRadius) || "px";
  const radiusValue = toUnitless(theme.shape.borderRadius);
  return _extends({
    display: "block",
    // Create a "on paper" color with sufficient contrast retaining the color
    backgroundColor: theme.vars ? theme.vars.palette.Skeleton.bg : alpha(theme.palette.text.primary, theme.palette.mode === "light" ? 0.11 : 0.13),
    height: "1.2em"
  }, ownerState.variant === "text" && {
    marginTop: 0,
    marginBottom: 0,
    height: "auto",
    transformOrigin: "0 55%",
    transform: "scale(1, 0.60)",
    borderRadius: `${radiusValue}${radiusUnit}/${Math.round(radiusValue / 0.6 * 10) / 10}${radiusUnit}`,
    "&:empty:before": {
      content: '"\\00a0"'
    }
  }, ownerState.variant === "circular" && {
    borderRadius: "50%"
  }, ownerState.variant === "rounded" && {
    borderRadius: (theme.vars || theme).shape.borderRadius
  }, ownerState.hasChildren && {
    "& > *": {
      visibility: "hidden"
    }
  }, ownerState.hasChildren && !ownerState.width && {
    maxWidth: "fit-content"
  }, ownerState.hasChildren && !ownerState.height && {
    height: "auto"
  });
}, ({
  ownerState
}) => ownerState.animation === "pulse" && css(_t3 || (_t3 = _`
      animation: ${0} 2s ease-in-out 0.5s infinite;
    `), pulseKeyframe), ({
  ownerState,
  theme
}) => ownerState.animation === "wave" && css(_t4 || (_t4 = _`
      position: relative;
      overflow: hidden;

      /* Fix bug in Safari https://bugs.webkit.org/show_bug.cgi?id=68196 */
      -webkit-mask-image: -webkit-radial-gradient(white, black);

      &::after {
        animation: ${0} 2s linear 0.5s infinite;
        background: linear-gradient(
          90deg,
          transparent,
          ${0},
          transparent
        );
        content: '';
        position: absolute;
        transform: translateX(-100%); /* Avoid flash during server-side hydration */
        bottom: 0;
        left: 0;
        right: 0;
        top: 0;
      }
    `), waveKeyframe, (theme.vars || theme).palette.action.hover));
const Skeleton = /* @__PURE__ */ React.forwardRef(function Skeleton2(inProps, ref) {
  const props = useDefaultProps({
    props: inProps,
    name: "MuiSkeleton"
  });
  const {
    animation = "pulse",
    className,
    component = "span",
    height,
    style,
    variant = "text",
    width
  } = props, other = _objectWithoutPropertiesLoose(props, _excluded);
  const ownerState = _extends({}, props, {
    animation,
    component,
    variant,
    hasChildren: Boolean(other.children)
  });
  const classes = useUtilityClasses(ownerState);
  return /* @__PURE__ */ jsx(SkeletonRoot, _extends({
    as: component,
    ref,
    className: clsx(classes.root, className),
    ownerState
  }, other, {
    style: _extends({
      width,
      height
    }, style)
  }));
});
process.env.NODE_ENV !== "production" ? Skeleton.propTypes = {
  // ┌────────────────────────────── Warning ──────────────────────────────┐
  // │ These PropTypes are generated from the TypeScript type definitions. │
  // │    To update them, edit the d.ts file and run `pnpm proptypes`.     │
  // └─────────────────────────────────────────────────────────────────────┘
  /**
   * The animation.
   * If `false` the animation effect is disabled.
   * @default 'pulse'
   */
  animation: PropTypes.oneOf(["pulse", "wave", false]),
  /**
   * Optional children to infer width and height from.
   */
  children: PropTypes.node,
  /**
   * Override or extend the styles applied to the component.
   */
  classes: PropTypes.object,
  /**
   * @ignore
   */
  className: PropTypes.string,
  /**
   * The component used for the root node.
   * Either a string to use a HTML element or a component.
   */
  component: PropTypes.elementType,
  /**
   * Height of the skeleton.
   * Useful when you don't want to adapt the skeleton to a text element but for instance a card.
   */
  height: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
  /**
   * @ignore
   */
  style: PropTypes.object,
  /**
   * The system prop that allows defining system overrides as well as additional CSS styles.
   */
  sx: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.func, PropTypes.object, PropTypes.bool])), PropTypes.func, PropTypes.object]),
  /**
   * The type of content that will be rendered.
   * @default 'text'
   */
  variant: PropTypes.oneOfType([PropTypes.oneOf(["circular", "rectangular", "rounded", "text"]), PropTypes.string]),
  /**
   * Width of the skeleton.
   * Useful when the skeleton is inside an inline element with no width of its own.
   */
  width: PropTypes.oneOfType([PropTypes.number, PropTypes.string])
} : void 0;
export {
  Skeleton as default
};
