const browserAPI = globalThis.browser ?? globalThis.chrome;
let clientId = null;

async function ensureClientId() {
  const data = await browserAPI.storage.local.get("clientId");

  if (!data.clientId) {
    const newId = `client_${Date.now().toString(36)}`;
    await browserAPI.storage.local.set({ clientId: newId });
    clientId = newId;
    console.log("[BG] Создан новый clientId:", newId);
  } else {
    clientId = data.clientId;
    console.log("[BG] Загружен clientId:", clientId);
  }
}

browserAPI.storage.onChanged.addListener((changes, area) => {
  if (area === "local" && changes.clientId) {
    clientId = changes.clientId.newValue;
    console.log("[BG] clientId обновлён:", clientId);
  }
});

browserAPI.runtime.onInstalled.addListener(ensureClientId);
browserAPI.runtime.onStartup.addListener(ensureClientId);
ensureClientId();