function normalizeUrl(rawUrl) {
  if (!rawUrl) {
    return "";
  }

  if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.test(rawUrl)) {
    return rawUrl;
  }

  if (rawUrl.includes(" ") && !rawUrl.includes(".")) {
    return `https://duckduckgo.com/?q=${encodeURIComponent(rawUrl)}`;
  }

  return `https://${rawUrl}`;
}

async function getActiveTab() {
  const [tab] = await browser.tabs.query({ active: true, currentWindow: true });
  return tab;
}

document.getElementById("popup-url-form").addEventListener("submit", async (event) => {
  event.preventDefault();
  const input = document.getElementById("popup-url-input");
  const value = input.value.trim();

  if (!value) {
    return;
  }

  await browser.runtime.sendMessage({ type: "open-url", url: normalizeUrl(value) });
  window.close();
});

document.querySelectorAll("[data-action]").forEach((button) => {
  button.addEventListener("click", async () => {
    const action = button.dataset.action;
    const tab = await getActiveTab();

    if (!tab) {
      return;
    }

    if (action === "back") {
      await browser.tabs.goBack(tab.id).catch(() => {});
    } else if (action === "forward") {
      await browser.tabs.goForward(tab.id).catch(() => {});
    } else if (action === "refresh") {
      await browser.tabs.reload(tab.id);
    } else if (action === "home") {
      await browser.runtime.sendMessage({ type: "go-home" });
    } else if (action === "trash") {
      await browser.runtime.sendMessage({ type: "clear-session" });
    } else if (action === "settings") {
      await browser.runtime.sendMessage({ type: "open-settings" });
    }

    window.close();
  });
});