"use client";

import React, { useRef, useEffect, useCallback, useContext, useMemo, useState, forwardRef, version } from "react";
import { preload } from "react-dom";
import Head from "../shared/lib/head";
import { getImgProps } from "../shared/lib/get-img-props";
import { imageConfigDefault } from "../shared/lib/image-config";
import { ImageConfigContext } from "../shared/lib/image-config-context";
import { warnOnce } from "../shared/lib/utils/warn-once";
import { RouterContext } from "../shared/lib/router-context";
// @ts-ignore - This is replaced by webpack alias
import defaultLoader from "next/dist/shared/lib/image-loader";
// This is replaced by webpack define plugin
const configEnv = process.env.__NEXT_IMAGE_OPTS;
if (typeof window === "undefined") {
    globalThis.__NEXT_IMAGE_IMPORTED = true;
}
// See https://stackoverflow.com/q/39777833/266535 for why we use this ref
// handler instead of the img's onLoad attribute.
function handleLoading(img, placeholder, onLoadRef, onLoadingCompleteRef, setBlurComplete, unoptimized) {
    const src = img == null ? void 0 : img.src;
    if (!img || img["data-loaded-src"] === src) {
        return;
    }
    img["data-loaded-src"] = src;
    const p = "decode" in img ? img.decode() : Promise.resolve();
    p.catch(()=>{}).then(()=>{
        if (!img.parentElement || !img.isConnected) {
            // Exit early in case of race condition:
            // - onload() is called
            // - decode() is called but incomplete
            // - unmount is called
            // - decode() completes
            return;
        }
        if (placeholder !== "empty") {
            setBlurComplete(true);
        }
        if (onLoadRef == null ? void 0 : onLoadRef.current) {
            // Since we don't have the SyntheticEvent here,
            // we must create one with the same shape.
            // See https://reactjs.org/docs/events.html
            const event = new Event("load");
            Object.defineProperty(event, "target", {
                writable: false,
                value: img
            });
            let prevented = false;
            let stopped = false;
            onLoadRef.current({
                ...event,
                nativeEvent: event,
                currentTarget: img,
                target: img,
                isDefaultPrevented: ()=>prevented,
                isPropagationStopped: ()=>stopped,
                persist: ()=>{},
                preventDefault: ()=>{
                    prevented = true;
                    event.preventDefault();
                },
                stopPropagation: ()=>{
                    stopped = true;
                    event.stopPropagation();
                }
            });
        }
        if (onLoadingCompleteRef == null ? void 0 : onLoadingCompleteRef.current) {
            onLoadingCompleteRef.current(img);
        }
        if (process.env.NODE_ENV !== "production") {
            const origSrc = new URL(src, "http://n").searchParams.get("url") || src;
            if (img.getAttribute("data-nimg") === "fill") {
                if (!unoptimized && (!img.getAttribute("sizes") || img.getAttribute("sizes") === "100vw")) {
                    let widthViewportRatio = img.getBoundingClientRect().width / window.innerWidth;
                    if (widthViewportRatio < 0.6) {
                        warnOnce('Image with src "' + origSrc + '" has "fill" but is missing "sizes" prop. Please add it to improve page performance. Read more: https://nextjs.org/docs/api-reference/next/image#sizes');
                    }
                }
                if (img.parentElement) {
                    const { position  } = window.getComputedStyle(img.parentElement);
                    const valid = [
                        "absolute",
                        "fixed",
                        "relative"
                    ];
                    if (!valid.includes(position)) {
                        warnOnce('Image with src "' + origSrc + '" has "fill" and parent element with invalid "position". Provided "' + position + '" should be one of ' + valid.map(String).join(",") + ".");
                    }
                }
                if (img.height === 0) {
                    warnOnce('Image with src "' + origSrc + '" has "fill" and a height value of 0. This is likely because the parent element of the image has not been styled to have a set height.');
                }
            }
            const heightModified = img.height.toString() !== img.getAttribute("height");
            const widthModified = img.width.toString() !== img.getAttribute("width");
            if (heightModified && !widthModified || !heightModified && widthModified) {
                warnOnce('Image with src "' + origSrc + '" has either width or height modified, but not the other. If you use CSS to change the size of your image, also include the styles \'width: "auto"\' or \'height: "auto"\' to maintain the aspect ratio.');
            }
        }
    });
}
function getDynamicProps(fetchPriority) {
    const [majorStr, minorStr] = version.split(".");
    const major = parseInt(majorStr, 10);
    const minor = parseInt(minorStr, 10);
    if (major > 18 || major === 18 && minor >= 3) {
        // In React 18.3.0 or newer, we must use camelCase
        // prop to avoid "Warning: Invalid DOM property".
        // See https://github.com/facebook/react/pull/25927
        return {
            fetchPriority
        };
    }
    // In React 18.2.0 or older, we must use lowercase prop
    // to avoid "Warning: Invalid DOM property".
    return {
        fetchpriority: fetchPriority
    };
}
const ImageElement = /*#__PURE__*/ forwardRef((param, forwardedRef)=>{
    let { src , srcSet , sizes , height , width , decoding , className , style , fetchPriority , placeholder , loading , unoptimized , fill , onLoadRef , onLoadingCompleteRef , setBlurComplete , setShowAltText , onLoad , onError , ...rest } = param;
    return /*#__PURE__*/ React.createElement("img", {
        ...rest,
        ...getDynamicProps(fetchPriority),
        // It's intended to keep `loading` before `src` because React updates
        // props in order which causes Safari/Firefox to not lazy load properly.
        // See https://github.com/facebook/react/issues/25883
        loading: loading,
        width: width,
        height: height,
        decoding: decoding,
        "data-nimg": fill ? "fill" : "1",
        className: className,
        style: style,
        // It's intended to keep `src` the last attribute because React updates
        // attributes in order. If we keep `src` the first one, Safari will
        // immediately start to fetch `src`, before `sizes` and `srcSet` are even
        // updated by React. That causes multiple unnecessary requests if `srcSet`
        // and `sizes` are defined.
        // This bug cannot be reproduced in Chrome or Firefox.
        sizes: sizes,
        srcSet: srcSet,
        src: src,
        ref: useCallback((img)=>{
            if (forwardedRef) {
                if (typeof forwardedRef === "function") forwardedRef(img);
                else if (typeof forwardedRef === "object") {
                    // @ts-ignore - .current is read only it's usually assigned by react internally
                    forwardedRef.current = img;
                }
            }
            if (!img) {
                return;
            }
            if (onError) {
                // If the image has an error before react hydrates, then the error is lost.
                // The workaround is to wait until the image is mounted which is after hydration,
                // then we set the src again to trigger the error handler (if there was an error).
                // eslint-disable-next-line no-self-assign
                img.src = img.src;
            }
            if (process.env.NODE_ENV !== "production") {
                if (!src) {
                    console.error('Image is missing required "src" property:', img);
                }
                if (img.getAttribute("alt") === null) {
                    console.error('Image is missing required "alt" property. Please add Alternative Text to describe the image for screen readers and search engines.');
                }
            }
            if (img.complete) {
                handleLoading(img, placeholder, onLoadRef, onLoadingCompleteRef, setBlurComplete, unoptimized);
            }
        }, [
            src,
            placeholder,
            onLoadRef,
            onLoadingCompleteRef,
            setBlurComplete,
            onError,
            unoptimized,
            forwardedRef
        ]),
        onLoad: (event)=>{
            const img = event.currentTarget;
            handleLoading(img, placeholder, onLoadRef, onLoadingCompleteRef, setBlurComplete, unoptimized);
        },
        onError: (event)=>{
            // if the real image fails to load, this will ensure "alt" is visible
            setShowAltText(true);
            if (placeholder !== "empty") {
                // If the real image fails to load, this will still remove the placeholder.
                setBlurComplete(true);
            }
            if (onError) {
                onError(event);
            }
        }
    });
});
function ImagePreload(param) {
    let { isAppRouter , imgAttributes  } = param;
    const opts = {
        as: "image",
        imageSrcSet: imgAttributes.srcSet,
        imageSizes: imgAttributes.sizes,
        crossOrigin: imgAttributes.crossOrigin,
        referrerPolicy: imgAttributes.referrerPolicy,
        ...getDynamicProps(imgAttributes.fetchPriority)
    };
    if (isAppRouter && preload) {
        // See https://github.com/facebook/react/pull/26940
        preload(imgAttributes.src, // @ts-expect-error TODO: upgrade to `@types/react-dom@18.3.x`
        opts);
        return null;
    }
    return /*#__PURE__*/ React.createElement(Head, null, /*#__PURE__*/ React.createElement("link", {
        key: "__nimg-" + imgAttributes.src + imgAttributes.srcSet + imgAttributes.sizes,
        rel: "preload",
        // Note how we omit the `href` attribute, as it would only be relevant
        // for browsers that do not support `imagesrcset`, and in those cases
        // it would cause the incorrect image to be preloaded.
        //
        // https://html.spec.whatwg.org/multipage/semantics.html#attr-link-imagesrcset
        href: imgAttributes.srcSet ? undefined : imgAttributes.src,
        ...opts
    }));
}
export const Image = /*#__PURE__*/ forwardRef((props, forwardedRef)=>{
    const pagesRouter = useContext(RouterContext);
    // We're in the app directory if there is no pages router.
    const isAppRouter = !pagesRouter;
    const configContext = useContext(ImageConfigContext);
    const config = useMemo(()=>{
        const c = configEnv || configContext || imageConfigDefault;
        const allSizes = [
            ...c.deviceSizes,
            ...c.imageSizes
        ].sort((a, b)=>a - b);
        const deviceSizes = c.deviceSizes.sort((a, b)=>a - b);
        return {
            ...c,
            allSizes,
            deviceSizes
        };
    }, [
        configContext
    ]);
    const { onLoad , onLoadingComplete  } = props;
    const onLoadRef = useRef(onLoad);
    useEffect(()=>{
        onLoadRef.current = onLoad;
    }, [
        onLoad
    ]);
    const onLoadingCompleteRef = useRef(onLoadingComplete);
    useEffect(()=>{
        onLoadingCompleteRef.current = onLoadingComplete;
    }, [
        onLoadingComplete
    ]);
    const [blurComplete, setBlurComplete] = useState(false);
    const [showAltText, setShowAltText] = useState(false);
    const { props: imgAttributes , meta: imgMeta  } = getImgProps(props, {
        defaultLoader,
        imgConf: config,
        blurComplete,
        showAltText
    });
    return /*#__PURE__*/ React.createElement(React.Fragment, null, /*#__PURE__*/ React.createElement(ImageElement, {
        ...imgAttributes,
        unoptimized: imgMeta.unoptimized,
        placeholder: imgMeta.placeholder,
        fill: imgMeta.fill,
        onLoadRef: onLoadRef,
        onLoadingCompleteRef: onLoadingCompleteRef,
        setBlurComplete: setBlurComplete,
        setShowAltText: setShowAltText,
        ref: forwardedRef
    }), imgMeta.priority ? /*#__PURE__*/ React.createElement(ImagePreload, {
        isAppRouter: isAppRouter,
        imgAttributes: imgAttributes
    }) : null);
});

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