import * as React from 'react';
import { getIntrinsicElementProps, slot } from '@fluentui/react-utilities';
import { useArrowNavigationGroup } from '@fluentui/react-tabster';
/**
 * Create the state required to render Breadcrumb.
 *
 * The returned state can be modified with hooks such as useBreadcrumbStyles_unstable,
 * before being passed to renderBreadcrumb_unstable.
 *
 * @param props - props from this instance of Breadcrumb
 * @param ref - reference to root HTMLElement of Breadcrumb
 */ export const useBreadcrumb_unstable = (props, ref)=>{
    const { focusMode = 'tab', size = 'medium', list, ...rest } = props;
    const focusAttributes = useArrowNavigationGroup({
        circular: true,
        axis: 'horizontal',
        memorizeCurrent: true
    });
    var _props_arialabel;
    return {
        components: {
            root: 'nav',
            list: 'ol'
        },
        root: slot.always(getIntrinsicElementProps('nav', {
            ref,
            'aria-label': (_props_arialabel = props['aria-label']) !== null && _props_arialabel !== void 0 ? _props_arialabel : 'breadcrumb',
            ...focusMode === 'arrow' ? focusAttributes : {},
            ...rest
        }), {
            elementType: 'nav'
        }),
        list: slot.optional(list, {
            renderByDefault: true,
            defaultProps: {
                role: 'list'
            },
            elementType: 'ol'
        }),
        size
    };
};