'use client';
import { jsx as _jsx } from "react/jsx-runtime";
import React, { createContext, useContext, useOptimistic, useRef } from 'react';
import { formatUrl } from '../../shared/lib/router/utils/format-url';
import { AppRouterContext } from '../../shared/lib/app-router-context.shared-runtime';
import { PrefetchKind } from '../components/router-reducer/router-reducer-types';
import { useMergedRef } from '../use-merged-ref';
import { isAbsoluteUrl } from '../../shared/lib/utils';
import { addBasePath } from '../add-base-path';
import { warnOnce } from '../../shared/lib/utils/warn-once';
import { IDLE_LINK_STATUS, mountLinkInstance, onNavigationIntent, unmountLinkForCurrentNavigation, unmountPrefetchableInstance } from '../components/links';
import { isLocalURL } from '../../shared/lib/router/utils/is-local-url';
import { dispatchNavigateAction } from '../components/app-router-instance';
import { errorOnce } from '../../shared/lib/utils/error-once';
function isModifiedEvent(event) {
    const eventTarget = event.currentTarget;
    const target = eventTarget.getAttribute('target');
    return target && target !== '_self' || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey || // triggers resource download
    event.nativeEvent && event.nativeEvent.which === 2;
}
function linkClicked(e, href, as, linkInstanceRef, replace, scroll, onNavigate) {
    const { nodeName } = e.currentTarget;
    // anchors inside an svg have a lowercase nodeName
    const isAnchorNodeName = nodeName.toUpperCase() === 'A';
    if (isAnchorNodeName && isModifiedEvent(e) || e.currentTarget.hasAttribute('download')) {
        // ignore click for browser’s default behavior
        return;
    }
    if (!isLocalURL(href)) {
        if (replace) {
            // browser default behavior does not replace the history state
            // so we need to do it manually
            e.preventDefault();
            location.replace(href);
        }
        // ignore click for browser’s default behavior
        return;
    }
    e.preventDefault();
    if (onNavigate) {
        let isDefaultPrevented = false;
        onNavigate({
            preventDefault: ()=>{
                isDefaultPrevented = true;
            }
        });
        if (isDefaultPrevented) {
            return;
        }
    }
    React.startTransition(()=>{
        dispatchNavigateAction(as || href, replace ? 'replace' : 'push', scroll != null ? scroll : true, linkInstanceRef.current);
    });
}
function formatStringOrUrl(urlObjOrString) {
    if (typeof urlObjOrString === 'string') {
        return urlObjOrString;
    }
    return formatUrl(urlObjOrString);
}
/**
 * A React component that extends the HTML `<a>` element to provide
 * [prefetching](https://nextjs.org/docs/app/building-your-application/routing/linking-and-navigating#2-prefetching)
 * and client-side navigation. This is the primary way to navigate between routes in Next.js.
 *
 * @remarks
 * - Prefetching is only enabled in production.
 *
 * @see https://nextjs.org/docs/app/api-reference/components/link
 */ export default function LinkComponent(props) {
    const [linkStatus, setOptimisticLinkStatus] = useOptimistic(IDLE_LINK_STATUS);
    let children;
    const linkInstanceRef = useRef(null);
    const { href: hrefProp, as: asProp, children: childrenProp, prefetch: prefetchProp = null, passHref, replace, shallow, scroll, onClick, onMouseEnter: onMouseEnterProp, onTouchStart: onTouchStartProp, legacyBehavior = false, onNavigate, ref: forwardedRef, unstable_dynamicOnHover, ...restProps } = props;
    children = childrenProp;
    if (legacyBehavior && (typeof children === 'string' || typeof children === 'number')) {
        children = /*#__PURE__*/ _jsx("a", {
            children: children
        });
    }
    const router = React.useContext(AppRouterContext);
    const prefetchEnabled = prefetchProp !== false;
    /**
   * The possible states for prefetch are:
   * - null: this is the default "auto" mode, where we will prefetch partially if the link is in the viewport
   * - true: we will prefetch if the link is visible and prefetch the full page, not just partially
   * - false: we will not prefetch if in the viewport at all
   * - 'unstable_dynamicOnHover': this starts in "auto" mode, but switches to "full" when the link is hovered
   */ const appPrefetchKind = prefetchProp === null || prefetchProp === 'auto' ? PrefetchKind.AUTO : PrefetchKind.FULL;
    if (process.env.NODE_ENV !== 'production') {
        function createPropError(args) {
            return Object.defineProperty(new Error("Failed prop type: The prop `" + args.key + "` expects a " + args.expected + " in `<Link>`, but got `" + args.actual + "` instead." + (typeof window !== 'undefined' ? "\nOpen your browser's console to view the Component stack trace." : '')), "__NEXT_ERROR_CODE", {
                value: "E319",
                enumerable: false,
                configurable: true
            });
        }
        // TypeScript trick for type-guarding:
        const requiredPropsGuard = {
            href: true
        };
        const requiredProps = Object.keys(requiredPropsGuard);
        requiredProps.forEach((key)=>{
            if (key === 'href') {
                if (props[key] == null || typeof props[key] !== 'string' && typeof props[key] !== 'object') {
                    throw createPropError({
                        key,
                        expected: '`string` or `object`',
                        actual: props[key] === null ? 'null' : typeof props[key]
                    });
                }
            } else {
                // TypeScript trick for type-guarding:
                // eslint-disable-next-line @typescript-eslint/no-unused-vars
                const _ = key;
            }
        });
        // TypeScript trick for type-guarding:
        const optionalPropsGuard = {
            as: true,
            replace: true,
            scroll: true,
            shallow: true,
            passHref: true,
            prefetch: true,
            unstable_dynamicOnHover: true,
            onClick: true,
            onMouseEnter: true,
            onTouchStart: true,
            legacyBehavior: true,
            onNavigate: true
        };
        const optionalProps = Object.keys(optionalPropsGuard);
        optionalProps.forEach((key)=>{
            const valType = typeof props[key];
            if (key === 'as') {
                if (props[key] && valType !== 'string' && valType !== 'object') {
                    throw createPropError({
                        key,
                        expected: '`string` or `object`',
                        actual: valType
                    });
                }
            } else if (key === 'onClick' || key === 'onMouseEnter' || key === 'onTouchStart' || key === 'onNavigate') {
                if (props[key] && valType !== 'function') {
                    throw createPropError({
                        key,
                        expected: '`function`',
                        actual: valType
                    });
                }
            } else if (key === 'replace' || key === 'scroll' || key === 'shallow' || key === 'passHref' || key === 'legacyBehavior' || key === 'unstable_dynamicOnHover') {
                if (props[key] != null && valType !== 'boolean') {
                    throw createPropError({
                        key,
                        expected: '`boolean`',
                        actual: valType
                    });
                }
            } else if (key === 'prefetch') {
                if (props[key] != null && valType !== 'boolean' && props[key] !== 'auto') {
                    throw createPropError({
                        key,
                        expected: '`boolean | "auto"`',
                        actual: valType
                    });
                }
            } else {
                // TypeScript trick for type-guarding:
                // eslint-disable-next-line @typescript-eslint/no-unused-vars
                const _ = key;
            }
        });
    }
    if (process.env.NODE_ENV !== 'production') {
        if (props.locale) {
            warnOnce('The `locale` prop is not supported in `next/link` while using the `app` router. Read more about app router internalization: https://nextjs.org/docs/app/building-your-application/routing/internationalization');
        }
        if (!asProp) {
            let href;
            if (typeof hrefProp === 'string') {
                href = hrefProp;
            } else if (typeof hrefProp === 'object' && typeof hrefProp.pathname === 'string') {
                href = hrefProp.pathname;
            }
            if (href) {
                const hasDynamicSegment = href.split('/').some((segment)=>segment.startsWith('[') && segment.endsWith(']'));
                if (hasDynamicSegment) {
                    throw Object.defineProperty(new Error("Dynamic href `" + href + "` found in <Link> while using the `/app` router, this is not supported. Read more: https://nextjs.org/docs/messages/app-dir-dynamic-href"), "__NEXT_ERROR_CODE", {
                        value: "E267",
                        enumerable: false,
                        configurable: true
                    });
                }
            }
        }
    }
    const { href, as } = React.useMemo(()=>{
        const resolvedHref = formatStringOrUrl(hrefProp);
        return {
            href: resolvedHref,
            as: asProp ? formatStringOrUrl(asProp) : resolvedHref
        };
    }, [
        hrefProp,
        asProp
    ]);
    // This will return the first child, if multiple are provided it will throw an error
    let child;
    if (legacyBehavior) {
        if (process.env.NODE_ENV === 'development') {
            if (onClick) {
                console.warn('"onClick" was passed to <Link> with `href` of `' + hrefProp + '` but "legacyBehavior" was set. The legacy behavior requires onClick be set on the child of next/link');
            }
            if (onMouseEnterProp) {
                console.warn('"onMouseEnter" was passed to <Link> with `href` of `' + hrefProp + '` but "legacyBehavior" was set. The legacy behavior requires onMouseEnter be set on the child of next/link');
            }
            try {
                child = React.Children.only(children);
            } catch (err) {
                if (!children) {
                    throw Object.defineProperty(new Error("No children were passed to <Link> with `href` of `" + hrefProp + "` but one child is required https://nextjs.org/docs/messages/link-no-children"), "__NEXT_ERROR_CODE", {
                        value: "E320",
                        enumerable: false,
                        configurable: true
                    });
                }
                throw Object.defineProperty(new Error("Multiple children were passed to <Link> with `href` of `" + hrefProp + "` but only one child is supported https://nextjs.org/docs/messages/link-multiple-children" + (typeof window !== 'undefined' ? " \nOpen your browser's console to view the Component stack trace." : '')), "__NEXT_ERROR_CODE", {
                    value: "E266",
                    enumerable: false,
                    configurable: true
                });
            }
        } else {
            child = React.Children.only(children);
        }
    } else {
        if (process.env.NODE_ENV === 'development') {
            if ((children == null ? void 0 : children.type) === 'a') {
                throw Object.defineProperty(new Error('Invalid <Link> with <a> child. Please remove <a> or use <Link legacyBehavior>.\nLearn more: https://nextjs.org/docs/messages/invalid-new-link-with-extra-anchor'), "__NEXT_ERROR_CODE", {
                    value: "E209",
                    enumerable: false,
                    configurable: true
                });
            }
        }
    }
    const childRef = legacyBehavior ? child && typeof child === 'object' && child.ref : forwardedRef;
    // Use a callback ref to attach an IntersectionObserver to the anchor tag on
    // mount. In the future we will also use this to keep track of all the
    // currently mounted <Link> instances, e.g. so we can re-prefetch them after
    // a revalidation or refresh.
    const observeLinkVisibilityOnMount = React.useCallback((element)=>{
        if (router !== null) {
            linkInstanceRef.current = mountLinkInstance(element, href, router, appPrefetchKind, prefetchEnabled, setOptimisticLinkStatus);
        }
        return ()=>{
            if (linkInstanceRef.current) {
                unmountLinkForCurrentNavigation(linkInstanceRef.current);
                linkInstanceRef.current = null;
            }
            unmountPrefetchableInstance(element);
        };
    }, [
        prefetchEnabled,
        href,
        router,
        appPrefetchKind,
        setOptimisticLinkStatus
    ]);
    const mergedRef = useMergedRef(observeLinkVisibilityOnMount, childRef);
    const childProps = {
        ref: mergedRef,
        onClick (e) {
            if (process.env.NODE_ENV !== 'production') {
                if (!e) {
                    throw Object.defineProperty(new Error('Component rendered inside next/link has to pass click event to "onClick" prop.'), "__NEXT_ERROR_CODE", {
                        value: "E312",
                        enumerable: false,
                        configurable: true
                    });
                }
            }
            if (!legacyBehavior && typeof onClick === 'function') {
                onClick(e);
            }
            if (legacyBehavior && child.props && typeof child.props.onClick === 'function') {
                child.props.onClick(e);
            }
            if (!router) {
                return;
            }
            if (e.defaultPrevented) {
                return;
            }
            linkClicked(e, href, as, linkInstanceRef, replace, scroll, onNavigate);
        },
        onMouseEnter (e) {
            if (!legacyBehavior && typeof onMouseEnterProp === 'function') {
                onMouseEnterProp(e);
            }
            if (legacyBehavior && child.props && typeof child.props.onMouseEnter === 'function') {
                child.props.onMouseEnter(e);
            }
            if (!router) {
                return;
            }
            if (!prefetchEnabled || process.env.NODE_ENV === 'development') {
                return;
            }
            const upgradeToDynamicPrefetch = unstable_dynamicOnHover === true;
            onNavigationIntent(e.currentTarget, upgradeToDynamicPrefetch);
        },
        onTouchStart: process.env.__NEXT_LINK_NO_TOUCH_START ? undefined : function onTouchStart(e) {
            if (!legacyBehavior && typeof onTouchStartProp === 'function') {
                onTouchStartProp(e);
            }
            if (legacyBehavior && child.props && typeof child.props.onTouchStart === 'function') {
                child.props.onTouchStart(e);
            }
            if (!router) {
                return;
            }
            if (!prefetchEnabled) {
                return;
            }
            const upgradeToDynamicPrefetch = unstable_dynamicOnHover === true;
            onNavigationIntent(e.currentTarget, upgradeToDynamicPrefetch);
        }
    };
    // If child is an <a> tag and doesn't have a href attribute, or if the 'passHref' property is
    // defined, we specify the current 'href', so that repetition is not needed by the user.
    // If the url is absolute, we can bypass the logic to prepend the basePath.
    if (isAbsoluteUrl(as)) {
        childProps.href = as;
    } else if (!legacyBehavior || passHref || child.type === 'a' && !('href' in child.props)) {
        childProps.href = addBasePath(as);
    }
    let link;
    if (legacyBehavior) {
        if (process.env.NODE_ENV === 'development') {
            errorOnce('`legacyBehavior` is deprecated and will be removed in a future ' + 'release. A codemod is available to upgrade your components:\n\n' + 'npx @next/codemod@latest new-link .\n\n' + 'Learn more: https://nextjs.org/docs/app/building-your-application/upgrading/codemods#remove-a-tags-from-link-components');
        }
        link = /*#__PURE__*/ React.cloneElement(child, childProps);
    } else {
        link = /*#__PURE__*/ _jsx("a", {
            ...restProps,
            ...childProps,
            children: children
        });
    }
    return /*#__PURE__*/ _jsx(LinkStatusContext.Provider, {
        value: linkStatus,
        children: link
    });
}
const LinkStatusContext = /*#__PURE__*/ createContext(IDLE_LINK_STATUS);
export const useLinkStatus = ()=>{
    return useContext(LinkStatusContext);
};

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