const input = document.getElementById("channelInput");
const addBtn = document.getElementById("addBtn");
const list = document.getElementById("channelList");
const debugToggle = document.getElementById("debugToggle");
const resetBtn = document.getElementById("resetBtn");

const DEFAULTS = {
  whitelist: [],
  debug: false
};

function loadChannels() {
  chrome.storage.local.get(DEFAULTS, ({ whitelist, debug }) => {
    list.innerHTML = "";
    debugToggle.checked = Boolean(debug);
    whitelist.forEach((name, index) => {
      const li = document.createElement("li");
      li.textContent = name;

      const remove = document.createElement("button");
      remove.textContent = "x";
      remove.onclick = () => removeChannel(index);

      li.appendChild(remove);
      list.appendChild(li);
    });
  });
}

function addChannel() {
  const name = input.value.trim();
  if (!name) return;

  chrome.storage.local.get(DEFAULTS, ({ whitelist }) => {
    whitelist.push(name);
    chrome.storage.local.set({ whitelist }, loadChannels);
  });

  input.value = "";
}

function removeChannel(index) {
  chrome.storage.local.get(DEFAULTS, ({ whitelist }) => {
    whitelist.splice(index, 1);
    chrome.storage.local.set({ whitelist }, loadChannels);
  });
}

function setDebug(enabled) {
  chrome.storage.local.set({ debug: Boolean(enabled) });
}

function resetDefaults() {
  chrome.storage.local.set(DEFAULTS, loadChannels);
}

addBtn.onclick = addChannel;
debugToggle.onchange = e => setDebug(e.target.checked);
resetBtn.onclick = resetDefaults;
loadChannels();