<script lang="ts">
	import '../app.css';
	import { page } from '$app/state';
	import { goto } from '$app/navigation';
	import { onMount } from 'svelte';
	import { fade, slide } from 'svelte/transition';
	import { cubicOut } from 'svelte/easing';
	import { api, errMsg } from '$lib/api';
	import { getAuth, loadUser, logout } from '$lib/auth.svelte';
	import { t, getLocale, setLocale } from '$lib/i18n';
	import { getTheme, initTheme, setTheme, type Theme } from '$lib/theme.svelte';
	import Modal from '$lib/components/Modal.svelte';
	import NavIcon from '$lib/components/NavIcon.svelte';
	import Snackbar from '$lib/components/Snackbar.svelte';
	import SearchPalette from '$lib/components/SearchPalette.svelte';
	import { snackSuccess, snackError } from '$lib/stores/snackbar.svelte';
	import {
		providersCache, notificationTrackersCache, trackingConfigsCache,
		templateConfigsCache, commandConfigsCache, commandTemplateConfigsCache,
		commandTrackersCache, actionsCache, telegramBotsCache, emailBotsCache,
		matrixBotsCache, targetsCache, releaseStatusCache,
	} from '$lib/stores/caches.svelte';
	import { globalProviderFilter } from '$lib/stores/provider-filter.svelte';
	import { topbarAction } from '$lib/stores/topbar-action.svelte';
	import { providerDefaultIcon } from '$lib/grid-items';
	import IconGridSelect from '$lib/components/IconGridSelect.svelte';

	let { children } = $props();
	const auth = getAuth();
	const theme = getTheme();

	let allProviders = $derived(providersCache.items);

	// Sidebar release indicator — reads from the cache populated in onMount.
	const releaseUpdateAvailable = $derived(!!releaseStatusCache.value?.update_available);
	// A screen reader hits the brand-version link on every page — keep the
	// label informative only when an update is available, otherwise announce
	// the version + product so we don't repeat "Up to date" everywhere.
	const releaseTooltip = $derived(
		releaseUpdateAvailable
			? t('settings.release.updateAvailableTooltip').replace('{v}', releaseStatusCache.value?.latest ?? '')
			: `Notify Bridge v${__APP_VERSION__}`
	);

	let providerFilterItems = $derived([
		{ value: 0, icon: 'mdiFilterOff', label: t('common.allProviders'), desc: '' },
		...allProviders.map(p => ({ value: p.id, icon: providerDefaultIcon(p), label: p.name, desc: p.type })),
	]);
	// One-way: the store is the source of truth, the filter widget displays it.
	// IconGridSelect mutations route through `onChange` (see template) so we
	// never need a paired `$effect` to mirror the local <-> store value, which
	// previously required a `_syncingFilter` reentrancy flag.
	let providerFilterValue = $derived(globalProviderFilter.id ?? 0);

	// Reserve the provider-filter row from first paint until the cache resolves.
	// Without this, the row appears mid-paint and pushes nav items down on every
	// hard reload — the most visible "jump" the user reported.
	let showProviderFilter = $derived(allProviders.length >= 1 || providersCache.fetchedAt === 0);

	// Reconcile a stale persisted provider ID against the freshly-loaded
	// providers cache. Lives here (not in the store getter) because writing
	// `_providerId` from a `$state`-derived getter triggers Svelte's
	// `state_unsafe_mutation`. Runs once per cache refresh.
	$effect(() => {
		// Track `fetchedAt` so we re-run after the cache loads.
		void providersCache.fetchedAt;
		void providersCache.items.length;
		globalProviderFilter.reconcileWithCache();
	});

	function setProviderFilter(v: string | number) {
		const num = typeof v === 'number' ? v : Number(v);
		globalProviderFilter.set(num === 0 ? null : num);
	}

	// Collapsed-rail filter cycles through providers via the same setter so the
	// store stays the single write path.
	function cycleProviderFilter() {
		const ids = [0, ...allProviders.map(p => p.id)];
		const idx = ids.indexOf(providerFilterValue);
		setProviderFilter(ids[(idx + 1) % ids.length]);
	}

	let showPasswordForm = $state(false);
	let redirecting = $state(false);
	let openSearch: (() => void) | undefined;
	let pwdCurrent = $state('');
	let pwdNew = $state('');
	let pwdConfirm = $state('');
	let pwdMsg = $state('');
	let pwdSuccess = $state(false);

	async function changePassword(e: SubmitEvent) {
		e.preventDefault(); pwdMsg = ''; pwdSuccess = false;
		if (pwdNew.length < 8) { pwdMsg = t('auth.passwordTooShort'); return; }
		if (pwdNew !== pwdConfirm) { pwdMsg = t('auth.passwordMismatch'); return; }
		try {
			await api('/auth/password', { method: 'PUT', body: JSON.stringify({ current_password: pwdCurrent, new_password: pwdNew }) });
			pwdMsg = t('common.changePassword');
			pwdSuccess = true;
			pwdCurrent = ''; pwdNew = ''; pwdConfirm = '';
			snackSuccess(t('snack.passwordChanged'));
			setTimeout(() => { showPasswordForm = false; pwdMsg = ''; pwdSuccess = false; pwdConfirm = ''; }, 2000);
		} catch (err: unknown) { const m = errMsg(err); pwdMsg = m; pwdSuccess = false; snackError(m); }
	}

	// Read persisted UI state synchronously so first paint already matches the
	// user's last session — otherwise the sidebar visibly snaps from expanded
	// to collapsed (and groups slide open) right after mount.
	function readPersistedCollapsed(): boolean {
		if (typeof localStorage === 'undefined') return false;
		return localStorage.getItem('sidebar_collapsed') === 'true';
	}
	function readPersistedExpandedGroups(): Record<string, boolean> {
		if (typeof localStorage === 'undefined') return {};
		try {
			const saved = localStorage.getItem('nav_expanded');
			return saved ? JSON.parse(saved) : {};
		} catch {
			return {};
		}
	}

	let collapsed = $state(readPersistedCollapsed());
	let isMac = $derived(typeof navigator !== 'undefined' && /Mac|iPhone|iPad/.test(navigator.userAgent));

	// Nav counts — computed reactively from caches + global provider filter
	let navCounts = $derived.by(() => {
		const pid = globalProviderFilter.id;
		const ptype = globalProviderFilter.providerType;

		const filterById = <T extends { provider_id?: number }>(items: T[]) =>
			pid ? items.filter(i => i.provider_id === pid) : items;
		const filterByType = <T extends { provider_type?: string }>(items: T[]) =>
			ptype ? items.filter(i => i.provider_type === ptype) : items;

		const targets = targetsCache.items;
		// Single pass to count targets by type
		const targetsByType = new Map<string, number>();
		for (const t of targets) {
			targetsByType.set(t.type, (targetsByType.get(t.type) || 0) + 1);
		}
		return {
			providers: pid ? 1 : providersCache.items.length,
			notification_trackers: filterById(notificationTrackersCache.items as any[]).length,
			tracking_configs: filterByType(trackingConfigsCache.items as any[]).length,
			template_configs: filterByType(templateConfigsCache.items as any[]).length,
			command_trackers: filterById(commandTrackersCache.items as any[]).length,
			command_configs: filterByType(commandConfigsCache.items as any[]).length,
			command_template_configs: filterByType(commandTemplateConfigsCache.items as any[]).length,
			actions: filterById(actionsCache.items as any[]).length,
			telegram_bots: telegramBotsCache.items.length,
			email_bots: emailBotsCache.items.length,
			matrix_bots: matrixBotsCache.items.length,
			targets_telegram: targetsByType.get('telegram') || 0,
			targets_webhook: targetsByType.get('webhook') || 0,
			targets_email: targetsByType.get('email') || 0,
			targets_discord: targetsByType.get('discord') || 0,
			targets_slack: targetsByType.get('slack') || 0,
			targets_ntfy: targetsByType.get('ntfy') || 0,
			targets_matrix: targetsByType.get('matrix') || 0,
			targets_broadcast: targetsByType.get('broadcast') || 0,
		} as Record<string, number>;
	});

	interface NavItem {
		href: string;
		key: string;
		icon: string;
		countKey?: string;
	}

	interface NavGroup {
		key: string;
		icon: string;
		children: NavItem[];
	}

	type NavEntry = NavItem | NavGroup;

	function isGroup(entry: NavEntry): entry is NavGroup {
		return 'children' in entry;
	}

	const baseNavEntries: NavEntry[] = [
		{ href: '/', key: 'nav.dashboard', icon: 'mdiViewDashboard' },
		{ href: '/providers', key: 'nav.providers', icon: 'mdiServer', countKey: 'providers' },
		{
			key: 'nav.notification', icon: 'mdiBellOutline',
			children: [
				{ href: '/notification-trackers', key: 'nav.trackers', icon: 'mdiRadar', countKey: 'notification_trackers' },
				{ href: '/tracking-configs', key: 'nav.configs', icon: 'mdiCog', countKey: 'tracking_configs' },
				{ href: '/template-configs', key: 'nav.templates', icon: 'mdiFileDocumentEdit', countKey: 'template_configs' },
			],
		},
		{
			key: 'nav.commands', icon: 'mdiConsoleLine',
			children: [
				{ href: '/command-trackers', key: 'nav.trackers', icon: 'mdiRadar', countKey: 'command_trackers' },
				{ href: '/command-configs', key: 'nav.configs', icon: 'mdiCog', countKey: 'command_configs' },
				{ href: '/command-template-configs', key: 'nav.templates', icon: 'mdiCodeBracesBox', countKey: 'command_template_configs' },
			],
		},
		{
			key: 'nav.automation', icon: 'mdiRobotOutline',
			children: [
				{ href: '/actions', key: 'nav.actions', icon: 'mdiPlayCircleOutline', countKey: 'actions' },
			],
		},
		{
			key: 'nav.bots', icon: 'mdiRobot',
			children: [
				{ href: '/bots?tab=telegram', key: 'nav.telegram', icon: 'mdiSendCircle', countKey: 'telegram_bots' },
				{ href: '/bots?tab=email', key: 'nav.email', icon: 'mdiEmailOutline', countKey: 'email_bots' },
				{ href: '/bots?tab=matrix', key: 'nav.matrix', icon: 'mdiMatrix', countKey: 'matrix_bots' },
			],
		},
		{
			key: 'nav.targets', icon: 'mdiTarget',
			children: [
				{ href: '/targets?type=telegram', key: 'nav.targetTelegram', icon: 'mdiSend', countKey: 'targets_telegram' },
				{ href: '/targets?type=webhook', key: 'nav.targetWebhook', icon: 'mdiWebhook', countKey: 'targets_webhook' },
				{ href: '/targets?type=email', key: 'nav.targetEmail', icon: 'mdiEmailOutline', countKey: 'targets_email' },
				{ href: '/targets?type=discord', key: 'nav.targetDiscord', icon: 'mdiChat', countKey: 'targets_discord' },
				{ href: '/targets?type=slack', key: 'nav.targetSlack', icon: 'mdiSlack', countKey: 'targets_slack' },
				{ href: '/targets?type=ntfy', key: 'nav.targetNtfy', icon: 'mdiBell', countKey: 'targets_ntfy' },
				{ href: '/targets?type=matrix', key: 'nav.targetMatrix', icon: 'mdiMatrix', countKey: 'targets_matrix' },
				{ href: '/targets?type=broadcast', key: 'nav.targetBroadcast', icon: 'mdiBullhorn', countKey: 'targets_broadcast' },
			],
		},
	];

	const navEntries = $derived<NavEntry[]>(auth.isAdmin
		? [
			...baseNavEntries,
			{
				key: 'nav.settings', icon: 'mdiCogOutline',
				children: [
					{ href: '/settings', key: 'nav.common', icon: 'mdiCogOutline' },
					{ href: '/settings/backup', key: 'nav.backup', icon: 'mdiBackupRestore' },
					{ href: '/users', key: 'nav.users', icon: 'mdiAccountGroup' },
				],
			},
		]
		: baseNavEntries
	);

	/**
	 * Section labels above groups of nav entries — emitted in the template
	 * before the entry whose key matches a map below. Mirrors the Aurora
	 * mockup's "Overview / Routing / Operators / System" section rhythm
	 * without breaking the existing collapsible-group structure.
	 */
	const SECTION_BREAKS: Record<string, string> = {
		'nav.dashboard': 'nav.sectionOverview',
		'nav.notification': 'nav.sectionRouting',
		'nav.bots': 'nav.sectionOperators',
		'nav.settings': 'nav.sectionSystem',
	};

	// Track which groups are expanded (persisted in localStorage)
	let expandedGroups = $state<Record<string, boolean>>(readPersistedExpandedGroups());

	function toggleGroup(key: string) {
		expandedGroups = { ...expandedGroups, [key]: !expandedGroups[key] };
		if (typeof localStorage !== 'undefined') {
			localStorage.setItem('nav_expanded', JSON.stringify(expandedGroups));
		}
	}

	function isGroupActive(group: NavGroup): boolean {
		return group.children.some(c => {
			const path = c.href.split('?')[0];
			return page.url.pathname === path;
		});
	}

	// Mobile bottom-nav derives its 4 primary slots from baseNavEntries by key
	// lookup. Adding a new top-level nav entry doesn't break this list, and
	// renaming a key fails loudly via the assertion below — keeping desktop
	// and mobile nav structure in sync without manual duplication.
	const MOBILE_PRIMARY_KEYS = ['nav.dashboard', 'nav.notification', 'nav.commands', 'nav.targets'] as const;
	const mobileNavItems = $derived<NavItem[]>(
		MOBILE_PRIMARY_KEYS.map(key => {
			const entry = baseNavEntries.find(e => e.key === key);
			if (!entry) return null;
			return isGroup(entry)
				? { href: entry.children[0]?.href ?? '/', key: entry.key, icon: entry.icon }
				: entry;
		}).filter((x): x is NavItem => x !== null)
	);

	// "More" panel mirrors the full desktop sidebar tree so every subnode is
	// reachable on mobile (previously it was a flat hand-picked list that
	// hid all target types, bot channels, and several nested pages).
	let mobileMoreOpen = $state(false);

	function closeMobileMore() {
		mobileMoreOpen = false;
	}

	const isAuthPage = $derived(
		page.url.pathname === '/login' || page.url.pathname === '/setup'
	);

	onMount(async () => {
		initTheme();
		// `collapsed` and `expandedGroups` are now hydrated synchronously in
		// their $state initializers above to avoid a post-mount layout snap.
		await loadUser();
		if (!auth.user && !isAuthPage) {
			redirecting = true;
			goto('/login');
		}
		// Load all caches for nav counts + global provider filter
		if (auth.user) {
			Promise.all([
				providersCache.fetch(),
				notificationTrackersCache.fetch(),
				trackingConfigsCache.fetch(),
				templateConfigsCache.fetch(),
				commandTrackersCache.fetch(),
				commandConfigsCache.fetch(),
				commandTemplateConfigsCache.fetch(),
				actionsCache.fetch(),
				telegramBotsCache.fetch(),
				emailBotsCache.fetch(),
				matrixBotsCache.fetch(),
				targetsCache.fetch(),
				releaseStatusCache.fetch(),
			]).catch(e => console.warn('Failed to load caches for nav counts:', e));
		}
	});

	// Auto-expand group containing the active page
	$effect(() => {
		for (const entry of navEntries) {
			if (isGroup(entry) && isGroupActive(entry) && !expandedGroups[entry.key]) {
				expandedGroups = { ...expandedGroups, [entry.key]: true };
			}
		}
	});

	function cycleTheme() {
		const order: Theme[] = ['light', 'dark', 'system'];
		const idx = order.indexOf(theme.current);
		setTheme(order[(idx + 1) % order.length]);
	}

	function toggleLocale() {
		setLocale(getLocale() === 'en' ? 'ru' : 'en');
	}

	function toggleSidebar() {
		collapsed = !collapsed;
		if (typeof localStorage !== 'undefined') {
			localStorage.setItem('sidebar_collapsed', String(collapsed));
		}
	}

	function isActive(href: string): boolean {
		const [hrefPath, hrefQs] = href.split('?');
		if (page.url.pathname !== hrefPath) return false;

		if (hrefQs) {
			// Link has query params — all must match
			const params = new URLSearchParams(hrefQs);
			for (const [k, v] of params) {
				if (page.url.searchParams.get(k) !== v) return false;
			}
			return true;
		}

		// Link has NO query params — only active if URL also has no
		// query params that a sibling link would claim
		// (e.g. /bots is not active when URL is /bots?tab=matrix)
		if (page.url.searchParams.size > 0) {
			// Check if any sibling nav item matches with those params
			for (const entry of navEntries) {
				if (isGroup(entry)) {
					for (const child of entry.children) {
						if (child.href !== href && child.href.startsWith(hrefPath + '?')) {
							const sibQs = child.href.split('?')[1];
							const sibParams = new URLSearchParams(sibQs);
							let sibMatch = true;
							for (const [k, v] of sibParams) {
								if (page.url.searchParams.get(k) !== v) { sibMatch = false; break; }
							}
							if (sibMatch) return false; // a sibling with query params matches better
						}
					}
				}
			}
		}
		return true;
	}
</script>

{#if isAuthPage}
	{@render children()}
{:else if auth.loading}
	<div class="min-h-screen flex items-center justify-center">
		<div class="flex items-center gap-3">
			<div class="w-5 h-5 rounded-full border-2 border-[var(--color-primary)] border-t-transparent animate-spin"></div>
			<p class="text-sm text-[var(--color-muted-foreground)]">{t('common.loading')}</p>
		</div>
	</div>
{:else if auth.user}
	<div class="app-shell">
		<!-- Sidebar -->
		<aside
			class="sidebar {collapsed ? 'w-[3.75rem]' : 'w-[15rem]'} flex flex-col max-md:hidden"
		>
			<!-- Header -->
			<div class="sidebar-header flex items-center {collapsed ? 'justify-center p-3' : 'justify-between px-5 py-5'}">
				{#if !collapsed}
					<div class="animate-fade-slide-in flex items-center gap-3">
						<div class="brand-orb"></div>
						<div class="brand-text">
							<h1 class="brand-name">
								{#if globalProviderFilter.provider}
									<span class="brand-mark__icon" style="color: var(--color-primary);"><NavIcon name={providerDefaultIcon(globalProviderFilter.provider)} size={14} /></span>
								{/if}
								Notify Bridge
							</h1>
							<p class="brand-version font-mono">
								<a
									class="brand-version-link"
									class:has-update={releaseUpdateAvailable}
									href="/settings#release"
									aria-label={releaseTooltip}
									title={releaseUpdateAvailable ? releaseTooltip : undefined}
								>
									<span>v{__APP_VERSION__}</span>
									{#if releaseUpdateAvailable}
										<span class="brand-version-dot" aria-hidden="true"></span>
									{/if}
								</a>
							</p>
						</div>
					</div>
				{:else}
					<div class="brand-orb brand-orb--small"></div>
				{/if}
				<button onclick={toggleSidebar}
					class="sidebar-icon-btn flex items-center justify-center w-10 h-10 rounded-lg transition-all duration-200"
					title={collapsed ? t('common.expand') : t('common.collapse')}
					aria-label={collapsed ? t('common.expand') : t('common.collapse')}>
					<NavIcon name={collapsed ? 'mdiChevronRight' : 'mdiChevronLeft'} size={18} />
				</button>
			</div>

			<!-- Global provider filter — kept rendered during the initial cache
			     fetch (fetchedAt === 0) so the row doesn't pop in mid-paint and
			     push the nav down. Hides only once we confirm zero providers. -->
			{#if showProviderFilter}
				<div class="{collapsed ? 'px-2 py-1' : 'px-3 py-1.5'}" style="border-bottom: 1px solid var(--color-border);">
					{#if collapsed}
						<button onclick={cycleProviderFilter}
							class="provider-filter-btn flex items-center justify-center w-full py-1.5 rounded-lg text-sm transition-all duration-200"
							title={globalProviderFilter.provider?.name || t('common.allProviders')}
							aria-label={globalProviderFilter.provider?.name || t('common.allProviders')}>
							<NavIcon name={globalProviderFilter.provider ? providerDefaultIcon(globalProviderFilter.provider) : 'mdiFilterOff'} size={16} />
						</button>
					{:else}
						<IconGridSelect items={providerFilterItems} value={providerFilterValue} onChange={setProviderFilter} columns={Math.min(providerFilterItems.length, 3)} compact />
					{/if}
				</div>
			{/if}

			<!-- Nav -->
			<nav class="flex-1 p-2 space-y-0.5 overflow-y-auto">
				{#each navEntries as entry}
					{#if SECTION_BREAKS[entry.key] && !collapsed}
						<div class="nav-section-label">{t(SECTION_BREAKS[entry.key])}</div>
					{/if}
					{#if isGroup(entry)}
						<!-- Group header -->
						<button
							onclick={() => collapsed ? null : toggleGroup(entry.key)}
							class="nav-link group flex items-center gap-2.5 {collapsed ? 'justify-center px-2' : 'px-3'} py-2 rounded-lg text-sm transition-all duration-200 w-full text-left relative {isGroupActive(entry) ? 'active' : ''} {isGroupActive(entry) && !expandedGroups[entry.key] ? 'active-bg' : ''}"
							title={collapsed ? t(entry.key) : ''}
						>
							{#if isGroupActive(entry) && !expandedGroups[entry.key]}
								<div class="active-indicator" style="position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 60%; border-radius: 0 3px 3px 0; background: var(--color-primary); box-shadow: 0 0 8px var(--color-glow-strong);"></div>
							{/if}
							<NavIcon name={entry.icon} size={18} />
							{#if !collapsed}
								<span class="truncate flex-1">{t(entry.key)}</span>
								<span class="nav-chevron" style="display: inline-flex; transition: transform 0.2s ease; transform: rotate({expandedGroups[entry.key] ? '90deg' : '0deg'});">
									<NavIcon name="mdiChevronRight" size={14} />
								</span>
							{/if}
						</button>
						<!-- Group children -->
						{#if expandedGroups[entry.key] && !collapsed}
							<div transition:slide={{ duration: 200, easing: cubicOut }} class="ml-3 pl-3 space-y-0.5" style="border-left: 1px solid var(--color-border);">
								{#each entry.children as child}
									<a
										href={child.href}
										class="nav-link nav-link-child group flex items-center gap-2 px-2.5 py-1.5 rounded-lg text-sm transition-all duration-200 relative {isActive(child.href) ? 'active' : ''}"
									>
										{#if isActive(child.href)}
											<div class="active-indicator" style="position: absolute; left: -13px; top: 50%; transform: translateY(-50%); width: 3px; height: 60%; border-radius: 0 3px 3px 0; background: var(--color-primary); box-shadow: 0 0 8px var(--color-glow-strong);"></div>
										{/if}
										<NavIcon name={child.icon} size={15} />
										<span class="truncate flex-1">{t(child.key)}</span>
										{#if child.countKey && navCounts[child.countKey]}
											<span class="nav-badge-sm">{navCounts[child.countKey]}</span>
										{/if}
									</a>
								{/each}
							</div>
						{/if}
					{:else}
						<!-- Top-level item -->
						<a
							href={entry.href}
							class="nav-link group flex items-center gap-2.5 {collapsed ? 'justify-center px-2' : 'px-3'} py-2 rounded-lg text-sm transition-all duration-200 relative {isActive(entry.href) ? 'active' : ''}"
							title={collapsed ? t(entry.key) : ''}
						>
							{#if isActive(entry.href)}
								<div class="active-indicator" style="position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 60%; border-radius: 0 3px 3px 0; background: var(--color-primary); box-shadow: 0 0 8px var(--color-glow-strong);"></div>
							{/if}
							<NavIcon name={entry.icon} size={18} />
							{#if !collapsed}
								<span class="truncate flex-1">{t(entry.key)}</span>
								{#if entry.countKey && navCounts[entry.countKey]}
									<span class="nav-badge">{navCounts[entry.countKey]}</span>
								{/if}
							{/if}
						</a>
					{/if}
				{/each}
			</nav>

			<!-- Footer -->
			<div class="sidebar-foot">
				{#if collapsed}
					<div class="flex flex-col items-center gap-1.5 py-3">
						<a href="/docs" target="_blank" rel="noopener noreferrer"
							class="sidebar-icon-btn flex items-center justify-center w-10 h-10 rounded-lg transition-all duration-200"
							title={t('common.apiDocs')}
							aria-label={t('common.apiDocs')}>
							<NavIcon name="mdiApi" size={14} />
						</a>
						<button onclick={logout}
							class="sidebar-icon-btn flex items-center justify-center w-10 h-10 rounded-lg transition-all duration-200"
							title={t('nav.logout')}
							aria-label={t('nav.logout')}>
							<NavIcon name="mdiLogout" size={16} />
						</button>
					</div>
				{:else}
					<div class="user-card">
						<div class="user-card__main">
							<div class="user-avatar">
								{auth.user.username[0].toUpperCase()}
							</div>
							<div class="user-card__text min-w-0">
								<p class="user-card__name truncate">{auth.user.username}</p>
								<p class="user-card__role">{auth.user.role}</p>
							</div>
							<span class="user-card__chip" title={t('dashboard.live')}></span>
						</div>
						<div class="user-card__actions">
							<button onclick={() => showPasswordForm = true} class="user-card__btn"
								title={t('common.changePassword')}
								aria-label={t('common.changePassword')}>
								<NavIcon name="mdiKeyVariant" size={13} />
								<span>{t('common.changePassword')}</span>
							</button>
							<a href="/docs" target="_blank" rel="noopener noreferrer"
								class="user-card__btn" title={t('common.apiDocs')}
								aria-label={t('common.apiDocs')}>
								<NavIcon name="mdiApi" size={13} />
							</a>
							<button onclick={logout} class="user-card__btn user-card__btn--danger"
								title={t('nav.logout')}
								aria-label={t('nav.logout')}>
								<NavIcon name="mdiLogout" size={13} />
							</button>
						</div>
					</div>
				{/if}
			</div>
		</aside>

		<!-- Mobile bottom nav -->
		<nav class="mobile-nav" style="position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; background: var(--color-sidebar); border-top: 1px solid var(--color-border); display: none; justify-content: space-around; padding: 0.375rem 0 calc(0.375rem + env(safe-area-inset-bottom, 0px)); backdrop-filter: blur(12px);">
			{#each mobileNavItems as item}
				<a href={item.href} aria-label={t(item.key)}
					class="flex flex-col items-center gap-0.5 px-2 py-1.5 text-xs rounded-lg transition-all duration-200"
					style="color: {isActive(item.href) ? 'var(--color-primary)' : 'var(--color-muted-foreground)'};">
					<NavIcon name={item.icon} size={20} />
				</a>
			{/each}
			<button onclick={() => openSearch?.()} aria-label={t('searchPalette.placeholder')}
				class="flex flex-col items-center gap-0.5 px-2 py-1.5 text-xs rounded-lg transition-all duration-200"
				style="color: var(--color-muted-foreground);">
				<NavIcon name="mdiMagnify" size={20} />
			</button>
			<button onclick={() => mobileMoreOpen = !mobileMoreOpen} aria-label={t('nav.more')}
				aria-expanded={mobileMoreOpen}
				class="flex flex-col items-center gap-0.5 px-2 py-1.5 text-xs rounded-lg transition-all duration-200"
				style="color: {mobileMoreOpen ? 'var(--color-primary)' : 'var(--color-muted-foreground)'};">
				<NavIcon name="mdiDotsHorizontal" size={20} />
			</button>
		</nav>

		<!-- Mobile "More" panel — mirrors the full desktop nav tree -->
		{#if mobileMoreOpen}
			<div class="mobile-more-backdrop" style="position: fixed; inset: 0; z-index: 49; background: rgba(0,0,0,0.4); backdrop-filter: blur(2px);"
				onclick={closeMobileMore} role="presentation"></div>
			<div class="mobile-more-panel"
				transition:slide={{ duration: 200, easing: cubicOut }}>
				{#if allProviders.length >= 1}
					<div class="mb-3 pb-3" style="border-bottom: 1px solid var(--color-border);">
						<IconGridSelect items={providerFilterItems} value={providerFilterValue} onChange={setProviderFilter} columns={Math.min(providerFilterItems.length, 4)} compact />
					</div>
				{/if}
				<div class="space-y-3">
					{#each navEntries as entry}
						{#if isGroup(entry)}
							<div>
								<div class="flex items-center gap-1.5 px-1 pb-1.5 text-[0.65rem] font-semibold uppercase tracking-wider"
									style="color: var(--color-muted-foreground);">
									<NavIcon name={entry.icon} size={13} />
									<span>{t(entry.key)}</span>
								</div>
								<div class="grid grid-cols-3 gap-2">
									{#each entry.children as child}
										<a href={child.href} onclick={closeMobileMore}
											class="flex flex-col items-center gap-1 p-3 rounded-lg transition-all duration-200 relative"
											style="color: {isActive(child.href) ? 'var(--color-primary)' : 'var(--color-muted-foreground)'}; background: {isActive(child.href) ? 'var(--color-sidebar-active)' : 'transparent'};"
										>
											<NavIcon name={child.icon} size={20} />
											<span class="text-xs text-center leading-tight">{t(child.key)}</span>
											{#if child.countKey && navCounts[child.countKey]}
												<span class="nav-badge-sm" style="position: absolute; top: 0.25rem; right: 0.25rem;">{navCounts[child.countKey]}</span>
											{/if}
										</a>
									{/each}
								</div>
							</div>
						{:else}
							<a href={entry.href} onclick={closeMobileMore}
								class="flex items-center gap-2 p-3 rounded-lg transition-all duration-200 relative"
								style="color: {isActive(entry.href) ? 'var(--color-primary)' : 'var(--color-muted-foreground)'}; background: {isActive(entry.href) ? 'var(--color-sidebar-active)' : 'transparent'};"
							>
								<NavIcon name={entry.icon} size={18} />
								<span class="text-sm flex-1">{t(entry.key)}</span>
								{#if entry.countKey && navCounts[entry.countKey]}
									<span class="nav-badge">{navCounts[entry.countKey]}</span>
								{/if}
							</a>
						{/if}
					{/each}
					<div class="pt-2" style="border-top: 1px solid var(--color-border);">
						<button onclick={() => { closeMobileMore(); logout(); }}
							class="flex items-center gap-2 p-3 w-full rounded-lg transition-all duration-200"
							style="color: var(--color-muted-foreground);">
							<NavIcon name="mdiLogout" size={18} />
							<span class="text-sm">{t('nav.logout')}</span>
						</button>
					</div>
				</div>
			</div>
		{/if}

		<!-- Main content -->
		<main class="main-col flex-1 overflow-auto md:pb-0"
			style="padding-bottom: calc(4rem + env(safe-area-inset-bottom, 0px));">

			<!-- Always-visible topbar — search + utilities + primary CTA -->
			<div class="topbar">
				<div class="topbar-glass">
					<button type="button" class="topbar-search" onclick={() => openSearch?.()}>
						<NavIcon name="mdiMagnify" size={16} />
						<span class="topbar-search__text">{t('searchPalette.placeholder')}</span>
						<span class="topbar-search__kbd font-mono">{isMac ? '⌘' : 'Ctrl '}K</span>
					</button>
					<button type="button" class="topbar-icon-btn" onclick={cycleTheme}
						title={t('common.theme')} aria-label={t('common.theme')}>
						<NavIcon name={theme.resolved === 'dark' ? 'mdiWeatherNight' : theme.current === 'system' ? 'mdiDesktopTowerMonitor' : 'mdiWeatherSunny'} size={16} />
					</button>
					<button type="button" class="topbar-icon-btn" onclick={toggleLocale}
						title={t('common.language')} aria-label={t('common.language')}>
						<span class="topbar-locale font-mono">{getLocale().toUpperCase()}</span>
					</button>
				</div>
			</div>

			{#key page.url.pathname}
				<div class="pb-4 md:pb-8" style="padding-top: 12px;" in:fade={{ duration: 200, delay: 50 }}>
					{@render children()}
				</div>
			{/key}
		</main>
	</div>
{:else}
	<div class="min-h-screen flex items-center justify-center">
		<div class="flex items-center gap-3">
			<div class="w-5 h-5 rounded-full border-2 border-[var(--color-primary)] border-t-transparent animate-spin"></div>
			<p class="text-sm text-[var(--color-muted-foreground)]">{redirecting ? t('common.redirecting') : t('common.loading')}</p>
		</div>
	</div>
{/if}

<!-- Password change modal -->
<Modal open={showPasswordForm} title={t('common.changePassword')} onclose={() => { showPasswordForm = false; pwdMsg = ''; pwdSuccess = false; pwdConfirm = ''; }}>
	<form onsubmit={changePassword} class="space-y-3">
		<input type="text" name="username" autocomplete="username" value={auth.user?.username ?? ''}
			readonly aria-hidden="true" tabindex="-1"
			style="position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none;" />
		<div>
			<label for="pwd-current" class="block text-sm font-medium mb-1">{t('common.currentPassword')}</label>
			<input id="pwd-current" type="password" autocomplete="current-password" bind:value={pwdCurrent} required
				class="w-full px-3 py-2 border border-[var(--color-border)] rounded-lg text-sm bg-[var(--color-background)]" />
		</div>
		<div>
			<label for="pwd-new" class="block text-sm font-medium mb-1">{t('common.newPassword')}</label>
			<input id="pwd-new" type="password" autocomplete="new-password" bind:value={pwdNew} required minlength="8"
				class="w-full px-3 py-2 border border-[var(--color-border)] rounded-lg text-sm bg-[var(--color-background)]" />
		</div>
		<div>
			<label for="pwd-confirm" class="block text-sm font-medium mb-1">{t('auth.confirmPassword')}</label>
			<input id="pwd-confirm" type="password" autocomplete="new-password" bind:value={pwdConfirm} required minlength="8"
				class="w-full px-3 py-2 border border-[var(--color-border)] rounded-lg text-sm bg-[var(--color-background)]" />
		</div>
		{#if pwdMsg}
			<p class="text-sm" style="color: var({pwdSuccess ? '--color-success-fg' : '--color-error-fg'});">{pwdMsg}</p>
		{/if}
		<button type="submit"
			class="primary-btn w-full py-2.5 rounded-lg text-sm font-medium transition-all duration-200">
			{t('common.save')}
		</button>
	</form>
</Modal>

<Snackbar />
<SearchPalette onopen={(fn) => openSearch = fn} />

<style>
	/* === AURORA SHELL === */
	.app-shell {
		display: flex;
		min-height: 100vh;
		padding: 18px;
		gap: 18px;
	}

	/* === SIDEBAR — frosted glass rail === */
	.sidebar {
		background: var(--color-glass);
		backdrop-filter: blur(28px) saturate(160%);
		-webkit-backdrop-filter: blur(28px) saturate(160%);
		border: 1px solid var(--color-border);
		border-radius: 22px;
		box-shadow: var(--shadow-card);
		position: sticky;
		top: 18px;
		height: calc(100vh - 36px);
		overflow: hidden;
		transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
	}
	.sidebar::after {
		content: '';
		position: absolute;
		inset: 0;
		border-radius: inherit;
		pointer-events: none;
		background: linear-gradient(180deg, var(--color-highlight), transparent 30%);
		opacity: 0.4;
		z-index: 0;
	}
	.sidebar > * { position: relative; z-index: 1; }
	.sidebar-header {
		border-bottom: 1px solid var(--color-border);
	}

	/* Brand — snapped to Aurora mockup: bold sans wordmark + mono version */
	.brand-text { line-height: 1.1; min-width: 0; }
	.brand-name {
		font-family: var(--font-sans);
		font-weight: 600;
		font-size: 0.95rem;
		letter-spacing: -0.01em;
		color: var(--color-foreground);
		margin: 0;
		display: flex;
		align-items: center;
		gap: 0.35rem;
		white-space: nowrap;
	}
	.brand-mark__icon {
		display: inline-flex;
		align-items: center;
	}
	.brand-version {
		font-size: 0.65rem;
		color: var(--color-muted-foreground);
		margin: 3px 0 0;
		letter-spacing: 0.02em;
		font-weight: 500;
	}
	.brand-version-link {
		display: inline-flex;
		align-items: center;
		gap: 0.3rem;
		color: inherit;
		text-decoration: none;
		border-radius: 0.3rem;
		padding: 1px 4px;
		margin: -1px -4px;
		transition: color 0.15s, background 0.15s;
	}
	.brand-version-link:hover {
		color: var(--color-foreground);
		background: var(--color-glass-strong);
	}
	.brand-version-link.has-update {
		color: var(--color-citrus, #d4a73a);
	}
	.brand-version-dot {
		width: 6px;
		height: 6px;
		border-radius: 999px;
		background: var(--color-citrus, #d4a73a);
		box-shadow: 0 0 6px color-mix(in srgb, var(--color-citrus, #d4a73a) 70%, transparent);
		animation: brand-version-pulse 2.4s ease-in-out infinite;
	}
	@keyframes brand-version-pulse {
		0%, 100% { transform: scale(1); opacity: 1; }
		50%      { transform: scale(1.35); opacity: 0.65; }
	}
	@media (prefers-reduced-motion: reduce) {
		.brand-version-dot { animation: none; }
		.brand-version-link { transition: none; }
	}
	.brand-orb {
		width: 32px; height: 32px;
		border-radius: 11px;
		background: conic-gradient(from 220deg, var(--color-primary), var(--color-orchid), var(--color-mint), var(--color-primary));
		box-shadow: 0 4px 14px var(--color-glow);
		position: relative;
		flex-shrink: 0;
	}
	.brand-orb::after {
		content: '';
		position: absolute; inset: 4px;
		border-radius: 7px;
		background: radial-gradient(circle at 30% 25%, rgba(255,255,255,0.6), transparent 50%);
	}
	.brand-orb--small { width: 26px; height: 26px; border-radius: 9px; }

	/* User avatar */
	.user-avatar {
		width: 30px; height: 30px;
		border-radius: 50%;
		display: grid; place-items: center;
		background: linear-gradient(135deg, var(--color-orchid), var(--color-primary));
		color: white;
		font-weight: 600;
		font-size: 0.78rem;
		box-shadow: 0 0 0 2px var(--color-glass) inset;
	}

	.provider-filter-btn {
		color: var(--color-muted-foreground);
		background: transparent;
	}
	.provider-filter-btn:hover {
		color: var(--color-foreground);
		background: var(--color-glass-strong);
	}

	/* Sidebar icon button (toggle, logout) */
	.sidebar-icon-btn {
		color: var(--color-muted-foreground);
		background: transparent;
	}
	.sidebar-icon-btn:hover {
		background: var(--color-glass-strong);
		color: var(--color-foreground);
	}

	/* Nav links — soft glass hovers, gradient bar on active.
	   Snapped from the Aurora dashboard mockup. */
	.nav-link {
		color: var(--color-muted-foreground);
		background: transparent;
		font-weight: 450;
		border-radius: 12px !important;
		font-size: 13.5px;
		letter-spacing: -0.005em;
	}
	.nav-link:not(.active):hover {
		background: var(--color-glass-strong);
		color: var(--color-foreground);
	}
	.nav-link.active {
		color: var(--color-foreground);
		font-weight: 500;
		background: var(--color-glass-elev);
		box-shadow: inset 0 1px 0 var(--color-highlight), 0 4px 18px -8px var(--color-glow);
	}
	.nav-link.active-bg {
		background: var(--color-glass-elev);
	}

	/* Sidebar footer card */
	.sidebar-foot {
		padding: 0.85rem 0.85rem 1rem;
	}
	.user-card {
		background: var(--color-glass-strong);
		border: 1px solid var(--color-border);
		border-radius: 14px;
		padding: 0.75rem 0.85rem 0.6rem;
		box-shadow: inset 0 1px 0 var(--color-highlight);
	}
	.user-card__main {
		display: flex; align-items: center; gap: 0.7rem;
	}
	.user-card__text { line-height: 1.15; }
	.user-card__name {
		font-size: 0.82rem;
		font-weight: 500;
		color: var(--color-foreground);
		margin: 0;
	}
	.user-card__role {
		font-size: 0.6rem;
		color: var(--color-muted-foreground);
		margin: 2px 0 0;
		text-transform: uppercase;
		letter-spacing: 0.13em;
	}
	.user-card__chip {
		margin-left: auto;
		width: 8px; height: 8px;
		border-radius: 50%;
		background: var(--color-mint);
		box-shadow: 0 0 8px var(--color-mint);
		flex-shrink: 0;
	}
	.user-card__actions {
		display: flex; gap: 0.3rem;
		margin-top: 0.65rem;
		padding-top: 0.55rem;
		border-top: 1px solid var(--color-border);
	}
	.user-card__btn {
		display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
		padding: 0.35rem 0.55rem;
		flex: 1;
		font-size: 0.65rem;
		color: var(--color-muted-foreground);
		background: transparent;
		border: 1px solid transparent;
		border-radius: 7px;
		cursor: pointer;
		transition: all 0.15s;
		font-family: inherit;
		text-decoration: none;
	}
	.user-card__btn span {
		max-width: 90px;
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}
	.user-card__btn:not(.user-card__btn--danger):not(:has(span)) { flex: 0 0 auto; }
	.user-card__btn:hover {
		background: var(--color-glass-elev);
		color: var(--color-foreground);
	}
	.user-card__btn--danger:hover {
		background: var(--color-error-bg);
		color: var(--color-error-fg);
	}

	/* Section labels above each nav group */
	.nav-section-label {
		display: flex;
		align-items: center;
		gap: 0.55rem;
		font-size: 0.6rem;
		font-weight: 600;
		letter-spacing: 0.18em;
		text-transform: uppercase;
		color: var(--color-muted-foreground);
		padding: 0.85rem 0.85rem 0.4rem;
		font-family: var(--font-mono);
	}
	.nav-section-label::after {
		content: '';
		flex: 1;
		height: 1px;
		background: var(--color-border);
	}

	/* Primary action button (password form submit) */
	.primary-btn {
		background: linear-gradient(135deg, var(--color-primary), var(--color-orchid));
		color: white;
		border: 0;
		box-shadow: 0 6px 20px -8px var(--color-glow-strong), inset 0 1px 0 rgba(255,255,255,0.3);
	}
	.primary-btn:hover {
		transform: translateY(-1px);
		box-shadow: 0 8px 24px -6px var(--color-glow-strong), inset 0 1px 0 rgba(255,255,255,0.3);
	}

	.nav-badge {
		font-size: 0.6rem;
		font-weight: 500;
		padding: 0.12rem 0.45rem;
		border-radius: 9999px;
		background: var(--color-glass-elev);
		color: var(--color-foreground);
		font-family: var(--font-mono);
		line-height: 1.2;
		min-width: 1.2rem;
		text-align: center;
		border: 1px solid var(--color-border);
	}
	.nav-link.active .nav-badge {
		background: var(--color-primary);
		color: var(--color-primary-foreground);
		border-color: transparent;
	}
	.nav-badge-sm {
		font-size: 0.55rem;
		font-weight: 500;
		padding: 0.06rem 0.4rem;
		border-radius: 9999px;
		background: var(--color-glass-strong);
		color: var(--color-muted-foreground);
		font-family: var(--font-mono);
		line-height: 1.2;
		min-width: 1rem;
		text-align: center;
	}

	/* === TOPBAR — always-visible search + utility row === */
	.main-col {
		display: flex;
		flex-direction: column;
	}
	.topbar {
		position: sticky;
		top: 0;
		z-index: 30;
		flex-shrink: 0;
	}
	.topbar-glass {
		display: flex;
		align-items: center;
		gap: 0.5rem;
		padding: 0.5rem 0.6rem 0.5rem 0.85rem;
		background: var(--color-glass);
		backdrop-filter: blur(14px) saturate(150%);
		-webkit-backdrop-filter: blur(14px) saturate(150%);
		border: 1px solid var(--color-border);
		border-radius: 18px;
		box-shadow: var(--shadow-card);
		position: relative;
	}
	.topbar-glass::after {
		content: '';
		position: absolute; inset: 0;
		border-radius: inherit;
		pointer-events: none;
		background: linear-gradient(180deg, var(--color-highlight), transparent 30%);
		opacity: 0.4;
	}
	.topbar-search {
		flex: 1;
		display: inline-flex;
		align-items: center;
		gap: 0.65rem;
		padding: 0.55rem 0.85rem;
		background: var(--color-glass-strong);
		border: 1px solid var(--color-border);
		border-radius: 12px;
		color: var(--color-muted-foreground);
		font-size: 0.85rem;
		font-family: inherit;
		cursor: text;
		transition: all 0.15s;
		text-align: left;
	}
	.topbar-search:hover {
		background: var(--color-glass-elev);
		border-color: var(--color-rule-strong);
	}
	.topbar-search__text {
		flex: 1;
		text-align: left;
	}
	.topbar-search__kbd {
		font-size: 0.65rem;
		padding: 2px 7px;
		border-radius: 6px;
		background: var(--color-glass);
		border: 1px solid var(--color-border);
		color: var(--color-foreground);
	}
	.topbar-icon-btn {
		width: 36px; height: 36px;
		display: grid; place-items: center;
		border-radius: 12px;
		border: 1px solid var(--color-border);
		background: var(--color-glass-strong);
		color: var(--color-muted-foreground);
		cursor: pointer;
		transition: all 0.15s;
	}
	.topbar-icon-btn:hover {
		background: var(--color-glass-elev);
		color: var(--color-foreground);
	}
	.topbar-locale {
		font-size: 0.65rem;
		font-weight: 600;
		letter-spacing: 0.06em;
	}

	@media (max-width: 720px) {
		.topbar-search__kbd { display: none; }
	}

	/* Mobile bottom-nav */
	@media (max-width: 767px) {
		.app-shell {
			padding: 0;
			gap: 0;
		}
		.sidebar {
			border-radius: 0;
			border: 0;
			border-right: 1px solid var(--color-border);
		}
		.mobile-nav { display: flex !important; }
		.mobile-more-panel {
			position: fixed;
			top: 0;
			left: 0;
			right: 0;
			bottom: calc(3rem + env(safe-area-inset-bottom, 0px));
			z-index: 50;
			background: var(--mobile-more-bg, rgba(19, 21, 32, 0.92));
			backdrop-filter: blur(12px) saturate(150%);
			-webkit-backdrop-filter: blur(12px) saturate(150%);
			border-top: 1px solid var(--color-rule-strong);
			padding: calc(1rem + env(safe-area-inset-top, 0px)) calc(1rem + env(safe-area-inset-right, 0px)) 1rem calc(1rem + env(safe-area-inset-left, 0px));
			overflow-y: auto;
			overscroll-behavior: contain;
		}
		:global([data-theme="light"]) .mobile-more-panel { --mobile-more-bg: rgba(250, 250, 254, 0.92); }
		.mobile-more-panel a:hover,
		.mobile-more-panel button:hover {
			background: var(--color-glass-strong);
		}
		.topbar { display: none; }
	}
</style>
