import * as React from 'react';
import { useId, slot } from '@fluentui/react-utilities';
import { Button } from '../Button/Button';
import { MenuButton } from '../MenuButton/MenuButton';
/**
 * Given user props, defines default props for the SplitButton and returns processed state.
 * @param props - User provided props to the SplitButton component.
 * @param ref - User provided ref to be passed to the SplitButton component.
 */ export const useSplitButton_unstable = (props, ref)=>{
    const { appearance = 'secondary', children, disabled = false, disabledFocusable = false, icon, iconPosition = 'before', menuButton, menuIcon, primaryActionButton, shape = 'rounded', size = 'medium', ...rest } = props;
    const baseId = useId('splitButton-');
    const menuButtonShorthand = slot.optional(menuButton, {
        defaultProps: {
            appearance,
            disabled,
            disabledFocusable,
            menuIcon,
            shape,
            size
        },
        renderByDefault: true,
        elementType: MenuButton
    });
    const primaryActionButtonShorthand = slot.optional(primaryActionButton, {
        defaultProps: {
            appearance,
            children,
            disabled,
            disabledFocusable,
            icon,
            iconPosition,
            id: baseId + '__primaryActionButton',
            shape,
            size
        },
        renderByDefault: true,
        elementType: Button
    });
    // Resolve menu button's aria-labelledby to be labelled by the primary action button if no label was provided by the
    // user.
    if (menuButtonShorthand && primaryActionButtonShorthand && !menuButtonShorthand['aria-label'] && !menuButtonShorthand['aria-labelledby']) {
        menuButtonShorthand['aria-labelledby'] = primaryActionButtonShorthand.id;
    }
    return {
        // Props passed at the top-level
        appearance,
        disabled,
        disabledFocusable,
        iconPosition,
        shape,
        size,
        components: {
            root: 'div',
            menuButton: MenuButton,
            primaryActionButton: Button
        },
        root: slot.always({
            ref: ref,
            ...rest
        }, {
            elementType: 'div'
        }),
        menuButton: menuButtonShorthand,
        primaryActionButton: primaryActionButtonShorthand
    };
};