/* ══════════════════════════════════════
   hyprcrd — app.js (orchestrator)
   ══════════════════════════════════════ */

import { api, setCsrf, getCsrf } from './modules/util.js';
import { state, getGroupCards } from './modules/state.js';
import { showDialog, isDialogOpen } from './modules/dialog.js';
import './modules/theme.js';
import { loadBuckets, renderTagBar, activateBucket } from './modules/buckets.js';
import { renderBoard, updateSortUI, getSelectedIds, clearSelection } from './modules/board.js';
import { openDetail, closeDetail, showDetailCard, ungroupCard } from './modules/detail.js';
import { openModal, closeModal, saveCard, saveOnly } from './modules/editor.js';
import { openSearch, closeSearch } from './modules/search.js';
import { showContextMenu } from './modules/context-menu.js';
import { undo, canUndo } from './modules/undo.js';
import { openGallery, closeGallery } from './modules/gallery.js';
import { refreshTasksView, openTasks, closeTasks } from './modules/tasks.js';
import { openCalendar, closeCalendar, refreshCalendar } from './modules/calendar.js';
import { startBackgroundSync, triggerSync, loadSettings as loadCaldavSettings, loadRelaySettings } from './modules/caldav.js';
import { openPluginSettings } from './modules/plugin-settings.js';

// ── Global API (for inline onclick handlers and cross-module calls) ──

window._openDetail = openDetail;
window._openModal = openModal;
window._openGallery = openGallery;
window._closeSearch = closeSearch;
window._closeTasks = closeTasks;
window._renderBoard = renderBoard;
window._openCalendar = openCalendar;
window._triggerSync = triggerSync;
window._openPluginSettings = openPluginSettings;
window._loadCaldavSettings = loadCaldavSettings;
window._loadRelaySettings = loadRelaySettings;
window._renderTagBar = renderTagBar;
window._showContextMenu = showContextMenu;
window._ungroupCard = ungroupCard;
window._getSelectedIds = getSelectedIds;
window._clearSelection = clearSelection;
window._refreshTasks = refreshTasksView;
window._reloadAll = async () => { await loadBuckets(); state.cards = await api('api/cards') || []; renderBoard(); refreshCalendar(); };
// Exposed for plugins that need to read the shared state (e.g. collab-buckets
// reads `state.buckets` in its MutationObserver to find collab_uid mapping).
window.state = state;
window._extractToCard = async (text) => {
    if (!text?.trim()) return;
    const lines = text.trim().split('\n');
    const title = lines[0].replace(/^#+\s*/, '').replace(/^\*+/, '').replace(/^-\s*/, '').trim() || 'Extracted';
    const body = text.trim();
    // Inherit context from the source card (viewing or editing)
    const source = state.viewingCard || (state.editingId ? state.cards.find(c => c.id == state.editingId) : null);
    const data = { title, body, color: source?.color || '#38bdf8', position: -1 };
    if (source?.bucket_id) data.bucket_id = source.bucket_id;
    if (source?.parent_id) data.parent_id = source.parent_id;
    else if (source && state.cards.some(c => c.parent_id == source.id)) data.parent_id = source.id;
    await api('api/cards', { method: 'POST', body: data });
    await window._reloadAll();
};

// ── Data loading ──

const CARDS_CACHE_KEY = 'hyprcrd-cards-cache';

function getCachedCards() {
    try { return JSON.parse(localStorage.getItem(CARDS_CACHE_KEY) || '[]'); } catch { return []; }
}

function setCachedCards(cards) {
    try {
        const slim = cards.map(c => ({ id: c.id, title: c.title, color: c.color, tags: c.tags, bucket_id: c.bucket_id, bucket_name: c.bucket_name, parent_id: c.parent_id, position: c.position, created_at: c.created_at, updated_at: c.updated_at, due_date: c.due_date, caldav_uid: c.caldav_uid, caldav_rrule: c.caldav_rrule }));
        localStorage.setItem(CARDS_CACHE_KEY, JSON.stringify(slim));
    } catch {}
}

async function loadCards() {
    // Phase 0: Show cached cards instantly (from previous session)
    const cached = getCachedCards();
    if (cached.length) {
        state.cards = cached.map(c => ({ ...c, body: null }));
        updateSortUI();
        renderBoard();
    }

    // Phase 1: Load metadata → update board with fresh titles/tags/dates
    const meta = await api('api/cards/meta');
    if (!meta) return;
    state.cards = meta.map(c => ({ ...c, body: null }));
    setCachedCards(meta);
    updateSortUI();
    renderBoard();

    // Phase 2: Load full cards in batches → replace spinners with content
    const batchSize = 25;
    for (let i = 0; i < meta.length; i += batchSize) {
        const batch = meta.slice(i, i + batchSize);
        const ids = batch.map(c => c.id).join(',');
        const full = await api('api/cards?ids=' + ids);
        if (!full) continue;
        for (const card of full) {
            const idx = state.cards.findIndex(c => c.id === card.id);
            if (idx >= 0) state.cards[idx] = card;
        }
        renderBoard();
    }
}

// ── Help ──

const helpOverlay = document.getElementById('help');
function openHelp() { helpOverlay?.classList.add('open'); }
function closeHelp() { helpOverlay?.classList.remove('open'); }
document.getElementById('help-btn')?.addEventListener('click', openHelp);
document.getElementById('help-close')?.addEventListener('click', closeHelp);
helpOverlay?.addEventListener('click', e => { if (e.target === helpOverlay) closeHelp(); });

const shortcutsOverlay = document.getElementById('shortcuts');
function openShortcuts() { shortcutsOverlay?.classList.add('open'); }
function closeShortcuts() { shortcutsOverlay?.classList.remove('open'); }
document.getElementById('shortcuts-btn')?.addEventListener('click', openShortcuts);
document.getElementById('shortcuts-close')?.addEventListener('click', closeShortcuts);
shortcutsOverlay?.addEventListener('click', e => { if (e.target === shortcutsOverlay) closeShortcuts(); });
document.addEventListener('keydown', e => {
    if (e.key === 'F1') { e.preventDefault(); helpOverlay?.classList.contains('open') ? closeHelp() : openHelp(); }
    if (e.key === '?' && document.activeElement === document.body) { e.preventDefault(); shortcutsOverlay?.classList.contains('open') ? closeShortcuts() : openShortcuts(); }
});

// ── Export / Import ──

document.getElementById('export-btn')?.addEventListener('click', () => { window.location.href = 'api/export'; });
document.getElementById('export-md-btn')?.addEventListener('click', () => { window.location.href = 'api/export-md'; });

const importFile = document.getElementById('import-file');
document.getElementById('import-btn')?.addEventListener('click', () => importFile?.click());
importFile?.addEventListener('change', async e => {
    const file = e.target.files?.[0];
    if (!file) return;

    // Check if it's a selective export (merge) or ask for full replace
    const form = new FormData(); form.append('file', file);
    const mode = await showDialog({ title: 'import_data', message: 'How do you want to import?', okLabel: 'Merge (add to existing)', cancelLabel: 'Replace (wipe all)' });
    // mode: true = merge, null = replace
    if (mode === null) {
        const sure = await showDialog({ title: 'replace_all', message: 'All existing data will be replaced!', danger: true, okLabel: 'Replace' });
        if (!sure) { e.target.value = ''; return; }
    }
    try {
        const url = mode ? 'api/import?merge=1' : 'api/import';
        const res = await fetch(url, { method: 'POST', body: form, headers: { 'X-CSRF-Token': getCsrf() } });
        const data = JSON.parse(await res.text());
        if (data.error) throw new Error(data.error);
        await loadBuckets(); state.cards = await api('api/cards'); renderBoard();
    } catch {}
    e.target.value = '';
});

// ── Auth ──

document.getElementById('logout-btn')?.addEventListener('click', async () => {
    const ok = await showDialog({ title: 'logout', message: 'Log out?', okLabel: 'Logout', danger: true });
    if (!ok) return;
    await fetch('api/auth/logout', { method: 'POST' });
    location.reload();
});

async function checkAuth() {
    const res = await fetch('api/auth/status');
    const data = await res.json();
    if (data.csrf) { setCsrf(data.csrf); window.hyprcrd?.util?.setCsrf?.(data.csrf); }
    // Refresh version-displaying spans from the live API response so the
    // GUI doesn't show a stale APP_VERSION when the PHP page is cached.
    if (data.version) {
        for (const el of document.querySelectorAll('[data-app-version]')) {
            el.textContent = 'v' + data.version;
        }
    }

    if (data.setup) {
        let pw = null;
        while (!pw || pw.length < 4) {
            pw = await showDialog({ title: 'setup', message: 'Welcome to hyprcrd. Set a password:', input: 'password', placeholder: '> password (min. 4 chars)...', okLabel: 'Set', cancelLabel: '' });
            if (pw && pw.length < 4) pw = null;
        }
        const r = await fetch('api/auth/setup', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ password: pw }) });
        const d = await r.json();
        if (d.error) { location.reload(); return; }
        if (d.csrf) { setCsrf(d.csrf); window.hyprcrd?.util?.setCsrf?.(d.csrf); }
    } else if (!data.logged_in) {
        let ok = false;
        while (!ok) {
            const pw = await showDialog({ title: 'login', message: '', input: 'password', placeholder: '> password...', okLabel: 'Login', cancelLabel: '' });
            if (!pw) continue;
            const r = await fetch('api/auth/login', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ password: pw }) });
            const d = await r.json();
            if (d.ok) { ok = true; if (d.csrf) { setCsrf(d.csrf); window.hyprcrd?.util?.setCsrf?.(d.csrf); } }
            else { /* failed login: caller will retry */ }
        }
    }

    loadBuckets();
    loadCards();
    startBackgroundSync();
}

// ── Global keyboard ──

document.addEventListener('keydown', e => {
    const modal = document.getElementById('modal');
    const detail = document.getElementById('detail');
    const search = document.getElementById('search');
    const tasks = document.getElementById('tasks');
    if (isDialogOpen()) return;

    if (e.key === 'k' && (e.ctrlKey || e.metaKey)) { e.preventDefault(); search.classList.contains('open') ? closeSearch() : openSearch(); return; }
    if (e.key === 'n' && (e.ctrlKey || e.metaKey) && !e.shiftKey) {
        e.preventDefault();
        const qc = document.getElementById('quick-capture');
        const qci = document.getElementById('quick-capture-input');
        if (qc.classList.contains('hidden')) { qc.classList.remove('hidden'); qci.focus(); }
        else { qc.classList.add('hidden'); qci.value = ''; }
        return;
    }
    if (e.key === 'Escape') {
        const qc = document.getElementById('quick-capture');
        if (!qc.classList.contains('hidden')) { qc.classList.add('hidden'); document.getElementById('quick-capture-input').value = ''; return; }
        if (detail.classList.contains('open')) {
            // If the user chose "exit zen first", ESC leaves zen mode before closing the card.
            const escAction = localStorage.getItem('hyprcrd-esc-action') || 'close';
            if (escAction === 'exitZen' && detail.classList.contains('zen')) {
                document.getElementById('detail-zen')?.click();
                return;
            }
            closeDetail();
        }
        else if (modal.classList.contains('open')) closeModal();
        else if (search.classList.contains('open')) closeSearch();
        else if (tasks?.classList.contains('open')) closeTasks();
        else if (document.getElementById('gallery')?.classList.contains('open')) closeGallery();
        else if (document.getElementById('calendar')?.classList.contains('open')) closeCalendar();
        else if (shortcutsOverlay?.classList.contains('open')) closeShortcuts();
        return;
    }
    if (e.key === 's' && (e.ctrlKey || e.metaKey) && modal.classList.contains('open')) { e.preventDefault(); e.shiftKey ? saveCard() : saveOnly(); return; }
    if (e.key === 'Enter' && (e.ctrlKey || e.metaKey) && modal.classList.contains('open')) { e.preventDefault(); saveCard(); return; }
    if (e.key === 'z' && (e.ctrlKey || e.metaKey) && !modal.classList.contains('open') && canUndo()) { e.preventDefault(); undo(); return; }
    if (e.key === '/' && ![modal, detail, search, tasks].some(el => el?.classList.contains('open')) && document.activeElement === document.body) { e.preventDefault(); openSearch(); }
    // Bare "n" → open editor for a new card (same as clicking the + button).
    if (e.key === 'n' && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar'), document.getElementById('shortcuts')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        e.preventDefault();
        openModal(null);
        return;
    }
    // Bare "a" → bucket all, "f" → bucket favorites. Same guards as the
    // other bare-key shortcuts.
    if ((e.key === 'a' || e.key === 'f') && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        e.preventDefault();
        activateBucket(e.key === 'a' ? 'all' : 'favorites');
        return;
    }
    // Bare "j" → open today's journal card (or create one if it doesn't
    // exist). Journal cards have a YYYY-MM-DD title prefix.
    if (e.key === 'j' && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        e.preventDefault();
        const today = new Date().toISOString().substring(0, 10);
        const existing = state.cards.find(c => (c.title || '').startsWith(today));
        if (existing) {
            openModal(existing);
        } else {
            // Switch to journal view so openModal picks up the journal
            // context (auto-fills the date title).
            activateBucket('journal');
            openModal(null);
        }
        return;
    }
    // Bare "c" toggles the calendar from the board. Same guards as "/":
    // no modifier, focus on <body> (so it doesn't intercept text typing),
    // and no full-screen overlay already in front.
    if (e.key === 'c' && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const calendar = document.getElementById('calendar');
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        e.preventDefault();
        if (calendar?.classList.contains('open')) closeCalendar();
        else openCalendar();
        return;
    }
    // Bare "t" opens the tag quick-pick on the board. Same focus +
    // overlay guards as "c". Picking a tag sets state.activeTags = [tag].
    if (e.key === 't' && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        e.preventDefault();
        openTagQuickPick();
        return;
    }
    // Tab / Shift+Tab cycles through ALL bucket tiles in bar order
    // (specials + user buckets + super-buckets). Wraps around at both
    // ends. Same focus + overlay guards as the other bare-key shortcuts.
    if (e.key === 'Tab' && !e.ctrlKey && !e.metaKey && !e.altKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        const tiles = [...document.querySelectorAll('#bucket-bar .bucket-tab[data-bucket], #bucket-bar .bucket-tab[data-bucket-super]')];
        if (!tiles.length) return;
        // Find which tile is currently active
        const curIdx = tiles.findIndex(t => {
            const bid = t.dataset.bucket || t.dataset.bucketSuper;
            if (bid == state.activeBucket) return true;
            // Super-bucket: active if any child matches
            if (t.dataset.bucketSuper) {
                return state.buckets.some(b => b.parent_id == t.dataset.bucketSuper && b.id == state.activeBucket);
            }
            return false;
        });
        const dir = e.shiftKey ? -1 : 1;
        const nextIdx = (curIdx + dir + tiles.length) % tiles.length;
        const next = tiles[nextIdx];
        if (next) {
            e.preventDefault();
            const target = next.dataset.bucketSuper
                ? (next.dataset.superShown || next.dataset.bucketSuper)
                : next.dataset.bucket;
            activateBucket(target);
        }
        return;
    }
    // Bare "1"–"9" picks the Nth user bucket in the bar — fixed filters
    // (all/current/favorites/journal/none) are skipped, super-buckets
    // count as one slot and activate via activateBucket() so the
    // dropdown popover is NOT triggered.
    if (/^[1-9]$/.test(e.key) && !e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar')];
        if (blockers.some(el => el?.classList.contains('open'))) return;
        const SPECIAL = new Set(['all', 'current', 'favorites', 'journal', 'none']);
        const tiles = [...document.querySelectorAll('#bucket-bar .bucket-tab[data-bucket], #bucket-bar .bucket-tab[data-bucket-super]')]
            .filter(t => !SPECIAL.has(t.dataset.bucket));
        const idx = parseInt(e.key, 10) - 1;
        const tile = tiles[idx];
        if (tile) {
            e.preventDefault();
            // Super-bucket: activate the currently shown member (parent or
            // active child) directly instead of clicking, which would open
            // the dropdown popover. Regular bucket: just take its data-bucket.
            const target = tile.dataset.bucketSuper ? (tile.dataset.superShown || tile.dataset.bucketSuper) : tile.dataset.bucket;
            activateBucket(target);
        }
        return;
    }

    // Arrow keys navigate group in detail view
    if ((e.key === 'ArrowLeft' || e.key === 'ArrowRight') && detail.classList.contains('open') && state.viewingCard) {
        const gc = getGroupCards(state.viewingCard);
        if (!gc || gc.length < 2) return;
        const idx = gc.findIndex(c => c.id == state.viewingCard.id);
        if (idx === -1) return;
        e.preventDefault();
        showDetailCard((e.key === 'ArrowRight' ? gc[(idx + 1) % gc.length] : gc[(idx - 1 + gc.length) % gc.length]).id);
    }

    // Enter in detail view → close preview, then open editor
    if (e.key === 'Enter' && !e.ctrlKey && !e.metaKey && detail.classList.contains('open') && state.viewingCard) {
        e.preventDefault();
        const card = state.viewingCard;
        closeDetail();
        openModal(card);
        return;
    }

    // ── Board arrow-key card navigation ──
    // Arrow keys select a card on the board (different from Ctrl+click
    // multi-select — this is a single-focus cursor). Enter on a focused
    // card opens the detail view. Escape clears the focus. The focus
    // indicator is a `.card-focused` outline (accent2, distinct from the
    // multi-select accent outline).
    const isArrow = ['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight'].includes(e.key);
    if ((isArrow || e.key === 'Enter') && document.activeElement === document.body) {
        const blockers = [modal, detail, search, tasks, document.getElementById('gallery'), document.getElementById('settings-overlay'), document.getElementById('help'), document.getElementById('email-overlay'), document.getElementById('calendar'), document.getElementById('shortcuts')];
        if (blockers.some(el => el?.classList.contains('open'))) return;

        const board = document.getElementById('board');
        if (!board) return;
        const cards = [...board.querySelectorAll('.board-card[data-id]')];
        if (!cards.length) return;

        if (e.key === 'Enter') {
            const focused = board.querySelector('.card-focused');
            if (focused) {
                e.preventDefault();
                window._openDetail(focused.dataset.id);
                clearCardFocus();
            }
            return;
        }

        e.preventDefault();
        const focused = board.querySelector('.card-focused');
        let curIdx = focused ? cards.indexOf(focused) : -1;

        if (curIdx < 0) {
            // No focus yet → select the first card
            setCardFocus(cards[0]);
            return;
        }

        // Compute columns per row from the grid layout
        const firstTop = cards[0].offsetTop;
        let cols = cards.length;
        for (let i = 1; i < cards.length; i++) {
            if (cards[i].offsetTop !== firstTop) { cols = i; break; }
        }

        let next = curIdx;
        if (e.key === 'ArrowRight') next = Math.min(curIdx + 1, cards.length - 1);
        else if (e.key === 'ArrowLeft') next = Math.max(curIdx - 1, 0);
        else if (e.key === 'ArrowDown') next = Math.min(curIdx + cols, cards.length - 1);
        else if (e.key === 'ArrowUp') next = Math.max(curIdx - cols, 0);

        if (next !== curIdx) setCardFocus(cards[next]);
    }
});

let focusedCardId = null;
function setCardFocus(el) {
    clearCardFocus();
    if (!el) return;
    el.classList.add('card-focused');
    focusedCardId = el.dataset.id;
    el.scrollIntoView({ block: 'nearest', behavior: 'smooth' });
}
function clearCardFocus() {
    document.querySelectorAll('.card-focused').forEach(c => c.classList.remove('card-focused'));
    focusedCardId = null;
}
// Clear focus when clicking anywhere on the board (a card click opens
// detail/editor and focus is no longer meaningful), or when any overlay
// opens. Also re-apply after a board re-render if the focused card is
// still in the DOM.
document.addEventListener('click', () => { if (focusedCardId) clearCardFocus(); });
window._restoreCardFocus = function () {
    if (!focusedCardId) return;
    const el = document.querySelector(`#board .board-card[data-id="${focusedCardId}"]`);
    if (el) el.classList.add('card-focused');
    else clearCardFocus();
};

// ── Quick Capture ──

document.getElementById('quick-capture-input')?.addEventListener('keydown', async e => {
    if (e.key === 'Escape') {
        e.stopPropagation();
        document.getElementById('quick-capture').classList.add('hidden');
        e.target.value = '';
        return;
    }
    if (e.key !== 'Enter') return;
    const raw = e.target.value.trim();
    if (!raw) return;
    e.preventDefault();

    // Split on first "|" — title before, body after.
    // Also accept newlines as a fallback (first line = title, rest = body).
    let cardTitle, body;
    const pipeIdx = raw.indexOf('|');
    if (pipeIdx >= 0) {
        cardTitle = raw.slice(0, pipeIdx).trim();
        body = raw.slice(pipeIdx + 1).trim();
    } else {
        const lines = raw.split(/\n/);
        cardTitle = lines[0].trim();
        body = lines.slice(1).join('\n').trim();
    }
    if (!cardTitle) return;
    if (!body.includes('#inbox')) body = (body ? body + '\n\n' : '') + '#inbox';

    // Place the card in the currently active bucket (if it's a real
    // user bucket). Special filters (all/current/favorites/journal/none)
    // don't map to a bucket_id — cards captured there stay unsorted.
    const VIRTUAL = ['all', 'current', 'favorites', 'journal', 'none'];
    const bucketId = VIRTUAL.includes(state.activeBucket) ? null : state.activeBucket;
    await api('api/cards', { method: 'POST', body: { title: cardTitle, body, color: '#38bdf8', position: -1, bucket_id: bucketId } });

    e.target.value = '';
    document.getElementById('quick-capture').classList.add('hidden');
    await window._reloadAll();

    // Toast
    const n = document.createElement('div');
    n.style.cssText = 'position:fixed;bottom:60px;right:16px;z-index:200;background:var(--t-surface);border:1px solid var(--t-accent);border-radius:4px;padding:10px 14px;box-shadow:0 4px 20px rgba(0,0,0,0.4);';
    n.innerHTML = `<div style="font-family:var(--t-font-pixel);font-size:10px;color:var(--t-accent);display:flex;align-items:center;gap:6px;"><i class="ph ph-lightning"></i>captured: ${cardTitle.substring(0, 40)}</div>`;
    document.body.appendChild(n);
    setTimeout(() => { n.style.transition = 'opacity .3s'; n.style.opacity = '0'; setTimeout(() => n.remove(), 350); }, 2500);
});

// ── Tag quick-pick (bare "t" hotkey on the board) ──

/** Show a small popover listing every tag found on any card. Typing
 *  filters; arrow keys + enter pick; clicking outside or ESC closes.
 *  Picking a tag sets state.activeTags = [tag] and re-renders the board. */
function openTagQuickPick() {
    const existing = document.getElementById('tag-quickpick');
    if (existing) { existing.remove(); return; }

    const tagSet = new Set();
    for (const c of state.cards) {
        for (const t of (c.tags || '').split(',').filter(Boolean)) tagSet.add(t);
    }
    const allTags = [...tagSet].sort();
    if (!allTags.length) return;

    const overlay = document.createElement('div');
    overlay.id = 'tag-quickpick';
    overlay.style.cssText = 'position:fixed;inset:0;z-index:120;background:var(--t-overlay,rgba(0,0,0,0.55));display:flex;align-items:flex-start;justify-content:center;padding:80px 16px 16px;backdrop-filter:blur(var(--ui-blur-overlay,0));';
    const box = document.createElement('div');
    box.style.cssText = 'background:var(--t-surface);border:1px solid var(--t-border);border-radius:var(--ui-radius-modal);box-shadow:var(--ui-shadow-modal);width:100%;max-width:380px;max-height:60vh;display:flex;flex-direction:column;overflow:hidden;';
    box.innerHTML = `
        <div style="padding:10px 12px;border-bottom:1px solid var(--t-border);display:flex;align-items:center;gap:8px;">
            <i class="ph ph-funnel text-t-accent"></i>
            <input id="tag-quickpick-input" type="text" placeholder="filter tags…"
                style="flex:1;background:var(--t-bg);border:1px solid var(--t-border);border-radius:var(--ui-radius-input);color:var(--t-bright);padding:6px 10px;font-size:12px;font-family:var(--t-font-content,'JetBrains Mono',monospace);outline:none;">
        </div>
        <div id="tag-quickpick-list" style="flex:1;overflow-y:auto;padding:4px 0;"></div>
    `;
    overlay.appendChild(box);
    document.body.appendChild(overlay);

    const input = box.querySelector('#tag-quickpick-input');
    const list  = box.querySelector('#tag-quickpick-list');
    let filtered = allTags;
    let active = 0;

    function escHtml(s) { return String(s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;'); }

    function renderList() {
        if (!filtered.length) {
            list.innerHTML = '<div style="padding:14px 12px;text-align:center;font-size:11px;color:var(--t-dim);font-style:italic;">no tags match</div>';
            return;
        }
        list.innerHTML = filtered.map((t, i) => `
            <button class="tag-quickpick-row" data-tag="${escHtml(t)}" data-idx="${i}"
                style="display:block;width:100%;text-align:left;padding:6px 14px;font-size:11px;font-family:var(--t-font-pixel,'Silkscreen',cursive);color:${i === active ? 'var(--t-bright)' : 'var(--t-text)'};background:${i === active ? 'var(--t-raised)' : 'transparent'};border:none;cursor:pointer;">
                #${escHtml(t)}
            </button>
        `).join('');
        list.querySelectorAll('[data-tag]').forEach(btn => {
            btn.addEventListener('mouseenter', () => { active = parseInt(btn.dataset.idx, 10); renderList(); });
            btn.addEventListener('click', () => pick(btn.dataset.tag));
        });
        const activeEl = list.querySelector(`[data-idx="${active}"]`);
        activeEl?.scrollIntoView({ block: 'nearest' });
    }

    function pick(tag) {
        state.activeTags = [tag];
        close();
        window._renderTagBar?.();
        window._renderBoard?.();
    }
    function close() {
        overlay.remove();
        document.removeEventListener('keydown', onKey, true);
    }
    function onKey(e) {
        if (e.key === 'Escape')      { e.preventDefault(); e.stopPropagation(); close(); }
        else if (e.key === 'ArrowDown') { e.preventDefault(); active = Math.min(active + 1, filtered.length - 1); renderList(); }
        else if (e.key === 'ArrowUp')   { e.preventDefault(); active = Math.max(active - 1, 0); renderList(); }
        else if (e.key === 'Enter')     { e.preventDefault(); if (filtered[active]) pick(filtered[active]); }
    }

    input.addEventListener('input', () => {
        const f = input.value.toLowerCase().replace(/^#/, '');
        filtered = f ? allTags.filter(t => t.toLowerCase().includes(f)) : allTags;
        active = 0;
        renderList();
    });
    overlay.addEventListener('click', e => { if (e.target === overlay) close(); });
    // Capture-phase keydown so ESC etc. don't bubble back to the rest of
    // the page handlers (search, board) while the picker is open.
    document.addEventListener('keydown', onKey, true);

    renderList();
    setTimeout(() => input.focus(), 0);
}

// ── Boot ──

checkAuth();

// ── Test runner: now provided by the "tests" plugin (see public/plugins/tests/) ──