init (move to laptop from pc)

app/assets/js/app.js

@@ -0,0 +1,79 @@
+/* main */
+window.onload = function () {
+  let app = document.documentElement;
+
+  if (
+    window.matchMedia &&
+    window.matchMedia('(prefers-color-scheme: dark)').matches
+  ) {
+    switch_theme('dark');
+  } else {
+    switch_theme('light');
+  }
+
+  // theme switcher
+  document
+    .getElementById('app_theme_switcher')
+    .addEventListener('click', switch_theme, false);
+
+  // routes handler
+  window.addEventListener('hashchange', location_handler);
+  location_handler();
+};
+
+/* Изменяет тему приложения */
+function switch_theme() {
+  let app = document.documentElement;
+  let theme = app.getAttribute('data-bs-theme');
+  let theme_switcher = document.getElementById('app_theme_switcher');
+
+  let theme_icon = {
+    dark: '☀️',
+    light: '🌙',
+  };
+
+  if (theme == 'auto' || theme == 'light') {
+    theme_switcher.innerText = theme_icon['dark'];
+    app.setAttribute('data-bs-theme', 'dark');
+  } else {
+    theme_switcher.innerText = theme_icon['light'];
+    app.setAttribute('data-bs-theme', 'light');
+  }
+}
+
+const location_handler = async () => {
+  let location = window.location.hash.replace('#', '');
+  if (location.length == 0) {
+    location = '/';
+  }
+  const route = routes[location] || routes['404'];
+  const html = await fetch(route.template).then((response) => response.text());
+  document.getElementById('content').innerHTML = html;
+  document.title = route.title;
+  document
+    .querySelector('meta[name="description"]')
+    .setAttribute('content', route.description);
+};
+
+const routes = {
+  404: {
+    template: '/pages/404.html',
+    title: '404',
+    description: 'Page not found',
+  },
+  '/': {
+    template: '/pages/home.html',
+    title: 'Home',
+    description: '...',
+  },
+  about: {
+    template: '/pages/about.html',
+    title: 'About Us',
+    description: '...',
+  },
+  games: {
+    template: '/pages/games.html',
+    title: 'Games',
+    description: '...',
+  },
+};