import Alpine from 'alpinejs';

import { logout, restoreSession, verifyConnection } from '../api/auth.js';
import { listKitchens } from '../api/kitchens.js';
import { APP_NAME, APP_VERSION } from './config.js';
import { createRouter, navigate } from './router.js';
import { createAppStore } from './store.js';
import { appShell } from '../components/app-shell.js';
import { navBar } from '../components/nav-bar.js';
import { registerFeatureData } from '../features/register.js';

async function installServiceWorker() {
  if (!('serviceWorker' in navigator)) {
    return;
  }

  if (import.meta.env.DEV) {
    const registrations = await navigator.serviceWorker.getRegistrations();
    await Promise.all(registrations.map((registration) => registration.unregister()));
    return;
  }

  await navigator.serviceWorker.register('/service-worker.js');
}

export function bootstrapApp() {
  const store = createAppStore();
  Alpine.store('app', store);

  registerFeatureData(Alpine, store);

  const appRoot = document.querySelector('#app');
  appRoot.innerHTML = appShell(
    APP_NAME,
    APP_VERSION,
    import.meta.env.DEV ? 'development' : 'production',
  );
  Alpine.initTree(appRoot);
  const navRoot = document.querySelector('#app-nav');

  function renderNav() {
    if (!navRoot) {
      return;
    }

    if (typeof Alpine.destroyTree === 'function') {
      Alpine.destroyTree(navRoot);
    }

    navRoot.innerHTML = navBar(APP_NAME);
    Alpine.initTree(navRoot);
  }

  const router = createRouter({
    Alpine,
    store,
    outlet: document.querySelector('#route-view'),
  });
  let authFailureHandled = false;

  function applyKitchens(kitchens) {
    store.setKitchens(kitchens);
    if (!store.activeKitchen && kitchens.length) {
      store.setActiveKitchen(kitchens[0]);
    }
    renderNav();
    return kitchens;
  }

  window.__loncApp = {
    navigate,
    async refreshKitchens() {
      return applyKitchens(await listKitchens(store));
    },
    async restoreSession() {
      try {
        const result = await restoreSession(store);
        if (result?.kitchens) {
          applyKitchens(result.kitchens);
        } else if (store.isConnected) {
          await window.__loncApp.refreshKitchens();
        }
        if (store.isConnected) {
          authFailureHandled = false;
        }
        renderNav();
      } catch (error) {
        renderNav();
        if (window.location.hash !== '#/login') {
          navigate('/login');
        }
      }
    },
    async verifyConnection() {
      const result = await verifyConnection(store);
      if (result?.kitchens) {
        applyKitchens(result.kitchens);
      } else if (store.isConnected) {
        await window.__loncApp.refreshKitchens();
      }
      if (store.isConnected) {
        authFailureHandled = false;
      }
      renderNav();
      return result;
    },
    handleAuthFailure(error) {
      if (!store.session?.applicationKey || !store.session?.hasValidated || authFailureHandled) {
        return;
      }

      authFailureHandled = true;
      store.markSessionInvalid();
      renderNav();
      const status = error?.status || error?.cause?.status;
      const message =
        status === 401 || status === 403
          ? 'This application key is no longer accepted by Tryton. Please verify it again or disconnect and create a new key.'
          : 'Authenticated requests are no longer succeeding. The application key may have been cancelled, or access is being denied by the server. Please reconnect or create a new key.';
      store.addAlert({
        type: 'warning',
        timeout: 0,
        message,
      });
      navigate('/login');
      window.setTimeout(() => router.render(), 0);
    },
    async logout() {
      await logout(store);
      authFailureHandled = false;
      renderNav();
      navigate('/login');
    },
    router,
  };

  window.addEventListener('online', () => {
    store.addAlert({ type: 'success', message: 'Connection restored.' });
  });

  window.addEventListener('offline', () => {
    store.addAlert({
      type: 'warning',
      message: 'You are offline. Cached screens stay available, but API actions may fail.',
    });
  });

  window.__loncApp
    .restoreSession()
    .finally(() => router.start())
    .catch(() => router.start());

  renderNav();

  installServiceWorker().catch(() => {
    store.addAlert({
      type: 'warning',
      message: 'PWA installation support could not be initialized.',
    });
  });
}