import navaid from "navaid";
import { page } from "./page.svelte";
import { navigation } from "./navigation.svelte";
import { site } from "./site.svelte";
import { locale } from "./locale.svelte";

export const router = navaid("/", () => {
  // Default handler
});

async function loadPage(path) {
  navigation.setLoading(true);
  page.setLoading(true);

  try {
    const response = await fetch(`${path}.json`);

    if (!response.ok) {
      throw new Error(`Failed to load page: ${response.status}`);
    }

    const data = await response.json();

    if (data.site) {
      site.set(data.site);
      locale.initialize(data.site.language, data.site.languages);
    }

    page.set({
      data,
      template: data.template || "default",
      url: path,
      loading: false,
      error: null,
    });

    window.scrollTo(0, 0);
  } catch (error) {
    console.error("Failed to load page:", error);
    page.setError(error);
  } finally {
    navigation.setLoading(false);
  }
}

// Route handlers
router
  .on("/", () => loadPage("/home"))
  .on("/expertise", () => loadPage("/expertise"))
  .on("/portfolio", () => loadPage("/portfolio"))
  .on("/portfolio/:slug", ({ slug }) => loadPage(`/portfolio/${slug}`))
  .on("/jouer", () => loadPage("/jouer"))
  .on("/jouer/:slug", ({ slug }) => loadPage(`/jouer/${slug}`))
  .on("/a-propos", () => loadPage("/a-propos"))
  .on("/blog", () => loadPage("/blog"))
  .on("/blog/:slug", ({ slug }) => loadPage(`/blog/${slug}`))
  .on("*", (params) => {
    // Fallback for other routes
    loadPage(window.location.pathname);
  });

export function initRouter() {
  // Start listening to route changes
  router.listen();

  // Intercept internal link clicks
  document.addEventListener("click", (e) => {
    const link = e.target.closest("a");
    if (!link) return;

    const url = new URL(link.href, window.location.origin);

    // Only intercept same-origin links without target attribute
    if (
      url.origin === window.location.origin &&
      !link.target &&
      !link.hasAttribute("download")
    ) {
      e.preventDefault();
      navigateTo(url.pathname);
    }
  });

  // Handle browser back/forward
  window.addEventListener("popstate", () => {
    router.run(window.location.pathname);
  });
}

export function navigateTo(path) {
  window.history.pushState({}, "", path);
  loadPage(path);
}