import { withBase } from 'vitepress';
import { useData } from '../composables/data';
import { isExternal, PATHNAME_PROTOCOL_RE } from '../../shared';
export function throttleAndDebounce(fn, delay) {
    let timeoutId;
    let called = false;
    return () => {
        if (timeoutId) {
            clearTimeout(timeoutId);
        }
        if (!called) {
            fn();
            called = true;
            setTimeout(() => {
                called = false;
            }, delay);
        }
        else {
            timeoutId = setTimeout(fn, delay);
        }
    };
}
export function ensureStartingSlash(path) {
    return /^\//.test(path) ? path : `/${path}`;
}
export function normalizeLink(url) {
    if (isExternal(url)) {
        return url.replace(PATHNAME_PROTOCOL_RE, '');
    }
    const { site } = useData();
    const { pathname, search, hash } = new URL(url, 'http://example.com');
    const normalizedPath = pathname.endsWith('/') || pathname.endsWith('.html')
        ? url
        : url.replace(/(?:(^\.+)\/)?.*$/, `$1${pathname.replace(/(\.md)?$/, site.value.cleanUrls ? '' : '.html')}${search}${hash}`);
    return withBase(normalizedPath);
}