(function () {
    const path   = window.location.pathname;
    const search = window.location.search;
    const I = window.IC || function () { return ''; };

    // ── Bereichs-Definitionen ────────────────────────────────────────────────
    const SECTIONS = {
        social: {
            prefixes: ['/community/'],
            exclude: [
                '/community/nachrichten.html',
                '/community/benachrichtigungen.html',
                '/community/einladungen.html',
            ],
            items: [
                { href: '/community/feed.html',      icon: 'FEED',     label: 'Feed'            },
                { href: '/community/freunde.html',   icon: 'FRIENDS',  label: 'Freunde'         },
                { href: '/community/gruppen.html',   icon: 'GROUPS',   label: 'Gruppen'         },
                { href: '/community/locations.html', icon: 'LOCATION', label: 'Locations'       },
                { href: '/community/events.html',    icon: 'EVENT',    label: 'Veranstaltungen' },
            ],
        },
        dating: {
            prefixes: ['/dating/'],
            items: [
                { href: '/dating/dating.html',   icon: 'DATING', label: 'Dating',   id: 'snavDatingLink' },
                { href: '/dating/besucher.html', icon: '',        label: 'Besucher'                       },
                { href: '/dating/likes.html',    icon: '',        label: 'Likes'                          },
                { href: '/dating/matches.html',  icon: '',        label: 'Matches'                        },
            ],
        },
        vanilla: {
            prefixes: ['/games/vanilla/'],
            items: [
                { href: '/games/vanilla/neuvanilla.html',    icon: 'PLAY_NEW',    label: 'Neue Session',   id: 'snavVanillaNeu'                   },
                { href: '#',                                 icon: 'WAITING',     label: 'Aktive Session', id: 'snavVanillaAktiv',  hidden: true   },
                { href: '/games/vanilla/vanillaingame.html', icon: 'PLAY_ACTIVE', label: 'Im Spiel',       id: 'snavVanillaImSpiel', hidden: true  },
                { href: '/games/vanilla/aufgaben.html',      icon: 'CHECK',       label: 'Aufgaben'                                               },
                { href: '/games/vanilla/toys.html',          icon: 'TOYS',        label: 'Toys'                                                   },
                { href: '/games/vanilla/entdecken.html',     icon: 'DISCOVER',    label: 'Entdecken'                                              },
            ],
        },
        bdsm: {
            prefixes: ['/games/bdsm/'],
            items: [
                { href: '/games/bdsm/neubdsm.html',          icon: 'PLAY_NEW',    label: 'Neue Session',   id: 'snavBdsmNeu'                    },
                { href: '#',                                  icon: 'WAITING',     label: 'Aktive Session', id: 'snavBdsmAktiv',   hidden: true   },
                { href: '/games/bdsm/bdsmingame.html',        icon: 'PLAY_ACTIVE', label: 'Im Spiel',       id: 'snavBdsmImSpiel', hidden: true   },
                { href: '/games/bdsm/aufgaben.html',          icon: 'CHECK',       label: 'Aufgaben'                                             },
                { href: '/games/bdsm/toys.html',              icon: 'TOYS',        label: 'Toys'                                                 },
                { href: '/games/bdsm/entdecken.html',         icon: 'DISCOVER',    label: 'Entdecken'                                            },
            ],
        },
        chastity: {
            prefixes: ['/games/chastity/'],
            items: [
                { href: '/games/chastity/neulock.html',            icon: 'NEW_LOCK',    label: 'Neues Lock',       id: 'snavChastityNeu'                   },
                { href: '#',                                       icon: 'ACTIVE_LOCK', label: 'Aktives Lock',     id: 'snavChastityAktiv', hidden: true   },
                { href: '/games/chastity/communityvotes.html',     icon: 'VOTES',       label: 'Community Votes'                                           },
                { href: '/games/chastity/meine-locks.html',        icon: 'LOCK',        label: 'Meine Vorlagen'                                            },
                { href: '/games/chastity/entdecken-vorlagen.html', icon: 'DISCOVER',    label: 'Entdecken'                                                 },
                { href: '/games/chastity/keyholder-finden.html',   icon: 'FRIENDS',     label: 'Keyholder finden'                                          },
                { href: '/games/chastity/keyholder.html',          icon: 'KEY',         label: 'Keyholder'                                                 },
                { href: '/games/chastity/unlock-history.html',     icon: 'HISTORY',     label: 'Code-Historie'                                             },
            ],
        },
    };

    // ── Aktiven Bereich ermitteln ────────────────────────────────────────────
    const sectionKey = Object.keys(SECTIONS).find(k => {
        const s = SECTIONS[k];
        if (!s.prefixes.some(p => path.startsWith(p))) return false;
        if (s.exclude && s.exclude.includes(path)) return false;
        return true;
    });
    if (!sectionKey) return;
    const section = SECTIONS[sectionKey];

    // ── CSS ──────────────────────────────────────────────────────────────────
    const style = document.createElement('style');
    style.textContent = `
        .section-nav {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            flex-wrap: wrap;
            padding: 0 0 0.6rem 0;
        }
        .section-nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.3rem 0.75rem;
            border-radius: 7px;
            text-decoration: none;
            color: var(--color-muted);
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
            transition: background 0.12s, color 0.12s;
        }
        .section-nav-link:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }
        .section-nav-link.active {
            color: var(--color-primary);
            background: rgba(var(--color-primary-rgb, 233,69,96), 0.09);
            font-weight: 600;
        }
        .section-nav-icon {
            font-size: 0.9rem;
            line-height: 1;
            flex-shrink: 0;
        }
        .section-nav--icons-only .section-nav-label { display: none; }
        .section-nav--icons-only .section-nav-link  { gap: 0; padding: 0.3rem 0.55rem; }
        .section-nav-sep {
            border: none;
            border-top: 1px solid var(--color-secondary);
            margin: 0 0 1.25rem 0;
        }
    `;
    document.head.appendChild(style);

    // ── Aktiv-Erkennung ──────────────────────────────────────────────────────
    function isActive(item) {
        if (item.href === '#') return false;
        const [itemPath, itemQuery] = item.href.split('?');
        if (itemQuery) return path === itemPath && search === '?' + itemQuery;
        return path === itemPath;
    }

    // ── Nav bauen ────────────────────────────────────────────────────────────
    const navEl = document.createElement('nav');
    navEl.className = 'section-nav';

    section.items.forEach(item => {
        const a = document.createElement('a');
        a.href = item.href;
        a.className = 'section-nav-link' + (isActive(item) ? ' active' : '');
        if (item.id)     a.id = item.id;
        if (item.hidden) a.style.display = 'none';
        a.title = item.label;
        if (item.icon)   a.innerHTML += `<span class="section-nav-icon">${I(item.icon) || ''}</span>`;
        a.innerHTML += `<span class="section-nav-label">${item.label}</span>`;
        navEl.appendChild(a);
    });

    const sep = document.createElement('hr');
    sep.className = 'section-nav-sep';

    // ── Einfügen in .main ────────────────────────────────────────────────────
    function checkOverflow() {
        // Immer zuerst Labels einblenden und ohne wrap messen —
        // so gibt es keine Feedback-Schleife durch Größenänderung nach dem Umschalten
        navEl.classList.remove('section-nav--icons-only');
        navEl.style.flexWrap = 'nowrap';
        const overflows = navEl.scrollWidth > navEl.clientWidth;
        navEl.style.flexWrap = '';
        if (overflows) navEl.classList.add('section-nav--icons-only');
    }

    function inject() {
        const main = document.querySelector('.main');
        if (!main) { setTimeout(inject, 30); return; }
        main.insertBefore(sep, main.firstChild);
        main.insertBefore(navEl, sep);
        loadDynamic();
        // Overflow-Erkennung beim Laden und bei Größenänderung
        requestAnimationFrame(checkOverflow);
        new ResizeObserver(checkOverflow).observe(navEl);
    }
    inject();

    // ── Dynamische Elemente (analog nav.js) ──────────────────────────────────
    function hide(id) { const el = document.getElementById(id); if (el) el.style.display = 'none'; }
    function show(id) { const el = document.getElementById(id); if (el) el.style.display = ''; }
    function setHref(id, h) { const el = document.getElementById(id); if (el) el.href = h; }

    async function loadDynamic() {
        try {
            const res = await fetch('/login/me');
            if (!res.ok) return;
            const user = await res.json();
            if (!user) return;

            // Dating-Link
            const datingLink = document.getElementById('snavDatingLink');
            if (datingLink) {
                datingLink.href = user.datingAktiv
                    ? '/dating/dating.html'
                    : '/konto/einstellungen.html#sec-dating';
            }

            // BDSM
            if (sectionKey === 'bdsm') {
                try {
                    const r = await fetch('/bdsm/einladung/meine-aktive');
                    if (r.ok) {
                        const aktiv = await r.json();
                        hide('snavBdsmNeu'); hide('snavBdsmImSpiel');
                        show('snavBdsmAktiv');
                        setHref('snavBdsmAktiv', aktiv.sessionId ? '/games/bdsm/bdsmingame.html' : '/games/bdsm/neubdsm.html');
                    } else {
                        const sr = await fetch(`/bdsm?userId=${user.userId}`);
                        if (sr.status === 200) { hide('snavBdsmNeu'); show('snavBdsmImSpiel'); }
                        else show('snavBdsmNeu');
                    }
                } catch (_) { show('snavBdsmNeu'); }
            }

            // Vanilla
            if (sectionKey === 'vanilla') {
                try {
                    const r = await fetch('/vanilla/einladung/meine-aktive');
                    if (r.ok) {
                        const aktiv = await r.json();
                        hide('snavVanillaNeu'); hide('snavVanillaImSpiel');
                        show('snavVanillaAktiv');
                        setHref('snavVanillaAktiv', aktiv.sessionId ? '/games/vanilla/vanillaingame.html' : '/games/vanilla/neuvanilla.html');
                    } else {
                        const sr = await fetch(`/vanilla?userId=${user.userId}`);
                        if (sr.status === 200) { hide('snavVanillaNeu'); show('snavVanillaImSpiel'); }
                        else show('snavVanillaNeu');
                    }
                } catch (_) { show('snavVanillaNeu'); }
            }

            // Chastity
            if (sectionKey === 'chastity') {
                try {
                    const r = await fetch('/keyholder/mylock');
                    if (r.ok) {
                        const lock = await r.json();
                        show('snavChastityAktiv');
                        setHref('snavChastityAktiv', '/games/chastity/activelock.html?lockId=' + lock.lockId);
                    }
                } catch (_) {}
            }
        } catch (_) {}
    }
})();