/**
 * UserMenu — avatar button + flyout menu
 *
 * RBAC-gated items based on sw.can() / sw.isAdmin / sw.isTeamAdmin().
 * Surfaces mount this wherever they want; the shell does not own placement.
 *
 * Props:
 *   placement  — Menu direction: 'down-right' (default) | 'down-left'
 *   onAction   — Override handler; if omitted, uses default routing
 */
const { html } = window;
const { useState, useRef, useMemo } = hooks;

import { Avatar } from '../primitives/avatar.js';
import { Menu } from '../primitives/menu.js';

export function UserMenu({ placement = 'down-right', onAction }) {
    const [open, setOpen] = useState(false);
    const btnRef = useRef(null);

    const sw = window.sw;
    const user = sw?.auth?.user;
    const authenticated = sw?.auth?.isAuthenticated;

    const items = useMemo(() => {
        const list = [
            { label: 'Settings', action: 'settings', icon: '\u2699\ufe0f' },
        ];

        // Admin — requires admin role
        if (!authenticated || sw?.isAdmin) {
            list.push({ label: 'Admin', action: 'admin', icon: '\ud83d\udee1\ufe0f' });
        }

        // Team Admin — requires admin role on at least one team
        const hasTeamAdmin = sw?.auth?.teams?.some(t => t.my_role === 'admin');
        if (!authenticated || hasTeamAdmin) {
            list.push({ label: 'Team Admin', action: 'team-admin', icon: '\ud83d\udc65' });
        }

        // Debug — admin only
        if (!authenticated || sw?.isAdmin) {
            list.push({ label: 'Debug', action: 'debug', icon: '\ud83d\udc1b' });
        }

        list.push({ divider: true });
        list.push({ label: 'Sign Out', action: 'sign-out' });

        return list;
    }, [user, authenticated]);

    function handleSelect(action) {
        setOpen(false);
        if (onAction) return onAction(action);
        if (action === 'sign-out') {
            sw?.auth?.logout();
        } else {
            sw?.emit('shell.navigate', { target: action });
        }
    }

    const displayName = user?.display_name || user?.username || 'Demo User';
    const avatar = user?.avatar || null;

    return html`
        <button class="sw-user-menu__trigger" ref=${btnRef}
                onClick=${() => setOpen(!open)} aria-label="User menu">
            <${Avatar} src=${avatar} name=${displayName} size="sm" />
        </button>
        <${Menu}
            open=${open}
            anchor=${btnRef.current}
            direction=${placement}
            items=${items}
            onSelect=${handleSelect}
            onClose=${() => setOpen(false)}
        />
    `;
}