Ulas
418 lines
14 KiB
JavaScript
418 lines
14 KiB
JavaScript
/**
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* Modul: Client-Side Router
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* Zweck: SPA-Routing über History API ohne Framework, Auth-Guard, Seiten-Übergänge
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* Abhängigkeiten: api.js
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*/
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import { auth } from '/api.js';
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// --------------------------------------------------------
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// Routen-Definitionen
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// Jede Route hat: path, page (dynamisch geladen), requiresAuth, module (für theme-color)
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// --------------------------------------------------------
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const ROUTES = [
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{ path: '/login', page: '/pages/login.js', requiresAuth: false, module: null },
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{ path: '/', page: '/pages/dashboard.js', requiresAuth: true, module: 'dashboard' },
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{ path: '/tasks', page: '/pages/tasks.js', requiresAuth: true, module: 'tasks' },
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{ path: '/shopping', page: '/pages/shopping.js', requiresAuth: true, module: 'shopping' },
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{ path: '/meals', page: '/pages/meals.js', requiresAuth: true, module: 'meals' },
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{ path: '/calendar', page: '/pages/calendar.js', requiresAuth: true, module: 'calendar' },
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{ path: '/notes', page: '/pages/notes.js', requiresAuth: true, module: 'notes' },
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{ path: '/contacts', page: '/pages/contacts.js', requiresAuth: true, module: 'contacts' },
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{ path: '/budget', page: '/pages/budget.js', requiresAuth: true, module: 'budget' },
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{ path: '/settings', page: '/pages/settings.js', requiresAuth: true, module: 'settings' },
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];
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// --------------------------------------------------------
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// Standalone-Modus: Dynamische theme-color Anpassung
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// Statusbar-Farbe spiegelt aktuelle Seite / Modal-State wider
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// --------------------------------------------------------
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const isStandalone = window.matchMedia('(display-mode: standalone)').matches
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|| navigator.standalone === true;
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/**
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* Setzt die theme-color Meta-Tags (Light + Dark Variante).
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* @param {string} lightColor
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* @param {string} [darkColor] — Falls nicht angegeben, wird lightColor für beide gesetzt
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*/
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function setThemeColor(lightColor, darkColor) {
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if (!isStandalone) return;
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const metas = document.querySelectorAll('meta[name="theme-color"]');
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if (metas.length >= 2) {
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metas[0].setAttribute('content', lightColor);
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metas[1].setAttribute('content', darkColor || lightColor);
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} else if (metas.length === 1) {
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metas[0].setAttribute('content', lightColor);
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}
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}
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/** Liest eine CSS Custom Property vom :root */
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function getCSSToken(name) {
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return getComputedStyle(document.documentElement).getPropertyValue(name).trim();
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}
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/** Setzt theme-color passend zum aktuellen Modul */
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function updateThemeColorForRoute(route) {
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if (!route?.module) {
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setThemeColor('#007AFF', '#1C1C1E');
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return;
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}
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const color = getCSSToken(`--module-${route.module}`);
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if (color) {
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setThemeColor(color, color);
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}
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}
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// --------------------------------------------------------
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// Modul-Cache: verhindert redundante dynamic imports bei Navigation
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// --------------------------------------------------------
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const moduleCache = new Map();
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async function importPage(pagePath) {
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if (!moduleCache.has(pagePath)) {
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moduleCache.set(pagePath, await import(pagePath));
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}
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return moduleCache.get(pagePath);
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}
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// --------------------------------------------------------
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// Globaler App-State
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// --------------------------------------------------------
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let currentUser = null;
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let currentPath = null;
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// --------------------------------------------------------
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// Router
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// --------------------------------------------------------
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const ROUTE_ORDER = ['/', '/tasks', '/shopping', '/meals', '/calendar',
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'/notes', '/contacts', '/budget', '/settings'];
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function getDirection(fromPath, toPath) {
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const fromIdx = ROUTE_ORDER.indexOf(fromPath ?? '/');
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const toIdx = ROUTE_ORDER.indexOf(toPath);
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if (fromIdx === -1 || toIdx === -1 || fromPath === toPath) return 'right';
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return toIdx > fromIdx ? 'right' : 'left';
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}
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/**
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* Navigiert zu einem Pfad und rendert die entsprechende Seite.
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* @param {string} path
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* @param {Object|boolean} userOrPushState - Direkt ein User-Objekt nach Login,
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* oder boolean (pushState) für interne Navigation
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* @param {boolean} pushState - false beim initialen Load und popstate
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*/
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async function navigate(path, userOrPushState = true, pushState = true) {
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// Überlastung: navigate(path, user) nach Login vs navigate(path, false) beim Init
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if (typeof userOrPushState === 'object' && userOrPushState !== null) {
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currentUser = userOrPushState;
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} else {
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pushState = userOrPushState;
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}
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// Alten Pfad merken, bevor currentPath aktualisiert wird — für Richtungsberechnung
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const previousPath = currentPath;
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currentPath = path;
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const route = ROUTES.find((r) => r.path === path) ?? ROUTES.find((r) => r.path === '/');
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// Auth-Guard
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if (route.requiresAuth && !currentUser) {
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try {
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const result = await auth.me();
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currentUser = result.user;
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} catch {
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currentPath = null; // Reset damit navigate('/login') nicht geblockt wird
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navigate('/login');
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return;
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}
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}
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if (!route.requiresAuth && currentUser && path === '/login') {
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currentPath = null;
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navigate('/');
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return;
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}
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if (pushState) {
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history.pushState({ path }, '', path);
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}
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await renderPage(route, previousPath);
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updateNav(path);
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updateThemeColorForRoute(route);
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}
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/**
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* Lädt und rendert eine Seite dynamisch.
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* @param {{ path: string, page: string }} route
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* @param {string|null} previousPath - Pfad vor der Navigation (für Richtungsberechnung)
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*/
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async function renderPage(route, previousPath = null) {
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const app = document.getElementById('app');
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const loading = document.getElementById('app-loading');
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// Loading verstecken
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if (loading) loading.hidden = true;
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try {
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const module = await importPage(route.page);
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if (typeof module.render !== 'function') {
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throw new Error(`Seite ${route.page} exportiert keine render()-Funktion.`);
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}
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// App-Shell einmalig aufbauen BEVOR render() aufgerufen wird —
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// page-content muss im DOM existieren damit document.getElementById()
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// in Seiten-Modulen funktioniert.
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if (!document.querySelector('.nav-bottom') && currentUser) {
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renderAppShell(app);
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}
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const content = document.getElementById('page-content') || app;
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// Richtung bestimmen (previousPath ist der alte Pfad vor der Navigation)
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const direction = getDirection(previousPath, route.path);
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const outClass = direction === 'right' ? 'page-transition--out-left' : 'page-transition--out-right';
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const inClass = direction === 'right' ? 'page-transition--in-right' : 'page-transition--in-left';
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// Alte Seite kurz ausfaden, falls vorhanden
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const oldPage = content.querySelector('.page-transition');
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if (oldPage) {
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oldPage.classList.add(outClass);
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await new Promise(r => setTimeout(r, 120));
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}
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// Seiten-Wrapper bereits jetzt in den DOM einfügen, damit
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// document.getElementById() in render() die richtigen Elemente findet.
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const pageWrapper = document.createElement('div');
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pageWrapper.className = `page-transition ${inClass}`;
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content.replaceChildren(pageWrapper);
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await module.render(pageWrapper, { user: currentUser });
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} catch (err) {
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console.error('[Router] Seiten-Render-Fehler:', err);
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renderError(app, err);
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}
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}
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/**
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* App-Shell mit Navigation einmalig aufbauen (nach erstem Login).
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*/
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function renderAppShell(container) {
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container.innerHTML = `
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<a href="#page-content" class="sr-only">Zum Inhalt springen</a>
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<nav class="nav-sidebar" aria-label="Hauptnavigation">
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<div class="nav-sidebar__logo"><span>Oikos</span></div>
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<div class="nav-sidebar__items" role="list">
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${navItems().map(navItemHtml).join('')}
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</div>
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</nav>
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<main class="app-content" id="page-content" aria-live="polite">
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</main>
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<nav class="nav-bottom" aria-label="Navigation">
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<div class="nav-bottom__dots" aria-hidden="true">
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<span class="nav-bottom__dot nav-bottom__dot--active"></span>
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<span class="nav-bottom__dot"></span>
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</div>
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<div class="nav-bottom__scroll">
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<div class="nav-bottom__page" role="list">
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${navItems().slice(0, 5).map(navItemHtml).join('')}
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</div>
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<div class="nav-bottom__page" role="list">
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${navItems().slice(5).map(navItemHtml).join('')}
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</div>
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</div>
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</nav>
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<div class="toast-container" id="toast-container" aria-live="assertive"></div>
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`;
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// Klick-Handler für alle Nav-Links
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container.querySelectorAll('[data-route]').forEach((el) => {
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el.addEventListener('click', (e) => {
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e.preventDefault();
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navigate(el.dataset.route);
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});
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});
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// Bottom-Nav: Scroll-Snap + Dot-Indikator
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initBottomNavSwipe(container);
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}
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/**
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* Initialisiert Swipe-Gesten und Dot-Indikator für die mobile Bottom-Navigation.
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*/
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function initBottomNavSwipe(container) {
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const scroll = container.querySelector('.nav-bottom__scroll');
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const dots = container.querySelectorAll('.nav-bottom__dot');
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if (!scroll || !dots.length) return;
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// Scroll-Event: Dot-Indikator aktualisieren
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scroll.addEventListener('scroll', () => {
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const page = Math.round(scroll.scrollLeft / scroll.offsetWidth);
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dots.forEach((d, i) => d.classList.toggle('nav-bottom__dot--active', i === page));
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}, { passive: true });
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}
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/**
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* Scrollt die Bottom-Nav zur richtigen Seite, wenn ein Item auf Seite 2 aktiv ist.
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*/
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function scrollNavToActive() {
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const scroll = document.querySelector('.nav-bottom__scroll');
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if (!scroll) return;
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const secondPage = navItems().slice(5).map(n => n.path);
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if (secondPage.includes(currentPath)) {
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scroll.scrollTo({ left: scroll.offsetWidth, behavior: 'smooth' });
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}
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}
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function navItems() {
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return [
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{ path: '/', label: 'Übersicht', icon: 'layout-dashboard' },
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{ path: '/tasks', label: 'Aufgaben', icon: 'check-square' },
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{ path: '/calendar', label: 'Kalender', icon: 'calendar' },
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{ path: '/meals', label: 'Essen', icon: 'utensils' },
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{ path: '/shopping', label: 'Einkauf', icon: 'shopping-cart' },
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{ path: '/notes', label: 'Pinnwand', icon: 'sticky-note' },
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{ path: '/contacts', label: 'Kontakte', icon: 'book-user' },
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{ path: '/budget', label: 'Budget', icon: 'wallet' },
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{ path: '/settings', label: 'Einstellungen', icon: 'settings' },
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];
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}
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function navItemHtml({ path, label, icon }) {
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return `
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<a href="${path}" data-route="${path}" class="nav-item" role="listitem" aria-label="${label}">
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<i data-lucide="${icon}" class="nav-item__icon" aria-hidden="true"></i>
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<span class="nav-item__label">${label}</span>
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</a>
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`;
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}
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/**
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* Aktiven Nav-Link hervorheben.
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*/
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function updateNav(path) {
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document.querySelectorAll('[data-route]').forEach((el) => {
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el.removeAttribute('aria-current');
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if (el.dataset.route === path) {
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el.setAttribute('aria-current', 'page');
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}
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});
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// Lucide Icons neu rendern (nach DOM-Update)
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if (window.lucide) {
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window.lucide.createIcons();
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}
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// Bottom-Nav zur aktiven Seite scrollen
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scrollNavToActive();
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}
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function renderError(container, err) {
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container.innerHTML = `
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<div class="empty-state">
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<div class="empty-state__title">Etwas ist schiefgelaufen.</div>
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<div class="empty-state__description">${err.message}</div>
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<button class="btn btn--primary" id="error-reload-btn">Neu laden</button>
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</div>
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`;
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container.querySelector('#error-reload-btn')?.addEventListener('click', () => location.reload());
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}
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// --------------------------------------------------------
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// Toast-Benachrichtigungen (global)
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// --------------------------------------------------------
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/**
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* Zeigt eine Toast-Benachrichtigung an.
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* @param {string} message
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* @param {'default'|'success'|'danger'|'warning'} type
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* @param {number} duration - ms
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*/
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function showToast(message, type = 'default', duration = 3000) {
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const container = document.getElementById('toast-container');
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if (!container) return;
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const toast = document.createElement('div');
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toast.className = `toast ${type !== 'default' ? `toast--${type}` : ''}`;
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toast.textContent = message;
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toast.setAttribute('role', 'alert');
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container.appendChild(toast);
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setTimeout(() => {
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toast.classList.add('toast--out');
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toast.addEventListener('animationend', () => toast.remove(), { once: true });
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}, duration);
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}
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// --------------------------------------------------------
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// Event-Listener
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// --------------------------------------------------------
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// --------------------------------------------------------
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// Globale Fehler-Handler (Error Boundary)
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// --------------------------------------------------------
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window.addEventListener('error', (e) => {
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// Ressource-Ladefehler (z.B. fehlgeschlagenes Bild): ignorieren
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if (e.target && e.target !== window) return;
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console.error('[Oikos] Unbehandelter Fehler:', e.error ?? e.message);
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showToast('Ein unerwarteter Fehler ist aufgetreten.', 'danger');
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});
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window.addEventListener('unhandledrejection', (e) => {
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// Auth-Fehler werden bereits von auth:expired behandelt
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if (e.reason?.status === 401) return;
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console.error('[Oikos] Unbehandeltes Promise-Rejection:', e.reason);
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const msg = e.reason?.message || 'Ein Fehler ist aufgetreten.';
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showToast(msg, 'danger');
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e.preventDefault(); // Konsolenfehler unterdrücken (bereits geloggt)
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});
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// SW-Update: neue Version im Hintergrund installiert → Toast anzeigen
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if ('serviceWorker' in navigator) {
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navigator.serviceWorker.addEventListener('message', (e) => {
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if (e.data?.type === 'SW_UPDATED') {
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// Modul-Cache leeren damit nächste Navigation frische Module lädt
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moduleCache.clear();
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showToast(
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'Update verfügbar — Seite neu laden für die neueste Version.',
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'default',
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8000
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);
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}
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});
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}
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// Browser zurück/vor
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window.addEventListener('popstate', (e) => {
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navigate(e.state?.path || location.pathname, false);
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});
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// Session abgelaufen
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window.addEventListener('auth:expired', () => {
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currentUser = null;
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navigate('/login');
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});
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// --------------------------------------------------------
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// Initialisierung
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// --------------------------------------------------------
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navigate(location.pathname, false);
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// Globale Exporte
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window.oikos = {
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navigate,
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showToast,
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setThemeColor,
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restoreThemeColor: () => {
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const route = ROUTES.find((r) => r.path === currentPath);
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updateThemeColorForRoute(route);
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},
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};
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