const textFields = [
  "apiBaseUrl",
  "webBaseUrl",
  "accessToken",
  "defaultPrompt",
  "workerId",
  "taskPollIntervalSeconds",
  "taskPageLoadTimeoutSeconds",
];
const checkboxFields = [
  "autoDiscoverServiceUrl",
  "tokenSyncEnabled",
  "pageAssistantEnabled",
  "taskPollingEnabled",
  "closeTaskTabs",
];

function formatServiceStatus(settings) {
  if (!settings.lastServiceSyncAt) {
    return `当前服务地址：${settings.webBaseUrl || DEER_CLIPPER_DEFAULTS.webBaseUrl}；API：${settings.apiBaseUrl || DEER_CLIPPER_DEFAULTS.apiBaseUrl}`;
  }
  return `当前服务地址：${settings.webBaseUrl || ""}；API：${settings.apiBaseUrl || ""}\n上次识别：${settings.lastServiceSyncAt}（${settings.lastServiceSyncSource || "unknown source"}）`;
}

function formatTokenStatus(settings) {
  if (!settings.lastTokenSyncAt) {
    return "Token 尚未自动同步。";
  }
  return `上次 token 同步：${settings.lastTokenSyncAt}（${settings.lastTokenSyncSource || "unknown source"}）`;
}

async function loadSettings() {
  const settings = await chrome.storage.sync.get(DEER_CLIPPER_DEFAULTS);
  if (!settings.workerId) {
    settings.workerId = deerMakeWorkerId();
    await chrome.storage.sync.set({ workerId: settings.workerId });
  }
  document.getElementById("apiBaseUrl").placeholder =
    DEER_CLIPPER_DEFAULTS.apiBaseUrl || "在 config.js 中配置默认 API 地址";
  document.getElementById("webBaseUrl").placeholder =
    DEER_CLIPPER_DEFAULTS.webBaseUrl || "在 config.js 中配置默认前端地址";
  for (const field of textFields) {
    document.getElementById(field).value = settings[field] ?? "";
  }
  for (const field of checkboxFields) {
    document.getElementById(field).checked = Boolean(settings[field]);
  }
  document.getElementById("serviceStatus").textContent = formatServiceStatus(settings);
  document.getElementById("tokenStatus").textContent = formatTokenStatus(settings);
}

async function saveSettings() {
  const next = {};
  for (const field of textFields) {
    next[field] = document.getElementById(field).value.trim();
  }
  for (const field of checkboxFields) {
    next[field] = document.getElementById(field).checked;
  }
  next.apiBaseUrl = deerNormalizeBaseUrl(next.apiBaseUrl || DEER_CLIPPER_DEFAULTS.apiBaseUrl);
  next.webBaseUrl = deerNormalizeBaseUrl(next.webBaseUrl || DEER_CLIPPER_DEFAULTS.webBaseUrl);
  next.defaultPrompt = next.defaultPrompt || DEER_CLIPPER_DEFAULT_PROMPT;
  next.workerId = next.workerId || deerMakeWorkerId();
  next.taskPollIntervalSeconds = Math.max(3, Number(next.taskPollIntervalSeconds || DEER_CLIPPER_DEFAULTS.taskPollIntervalSeconds));
  next.taskPageLoadTimeoutSeconds = Math.max(5, Number(next.taskPageLoadTimeoutSeconds || DEER_CLIPPER_DEFAULTS.taskPageLoadTimeoutSeconds));
  await chrome.storage.sync.set(next);
  const settings = await chrome.storage.sync.get(DEER_CLIPPER_DEFAULTS);
  document.getElementById("status").textContent = "已保存。";
  document.getElementById("serviceStatus").textContent = formatServiceStatus(settings);
  document.getElementById("tokenStatus").textContent = formatTokenStatus(settings);
}

function sendDiscoverServiceMessage() {
  return new Promise((resolve, reject) => {
    chrome.runtime.sendMessage({ type: "zncm-discover-service" }, (response) => {
      const error = chrome.runtime.lastError;
      if (error) {
        reject(new Error(error.message));
        return;
      }
      resolve(response || { ok: false, message: "服务地址识别没有返回结果。" });
    });
  });
}

function sendSyncTokenMessage() {
  return new Promise((resolve, reject) => {
    chrome.runtime.sendMessage({ type: "zncm-sync-token" }, (response) => {
      const error = chrome.runtime.lastError;
      if (error) {
      reject(new Error(error.message));
        return;
      }
      resolve(response || { ok: false, message: "Token 同步没有返回结果。" });
    });
  });
}

async function discoverServiceNow() {
  const button = document.getElementById("discoverService");
  button.disabled = true;
  document.getElementById("serviceStatus").textContent = "正在识别服务地址...";
  try {
    await chrome.storage.sync.set({
      autoDiscoverServiceUrl: document.getElementById("autoDiscoverServiceUrl").checked,
      apiBaseUrl: deerNormalizeBaseUrl(document.getElementById("apiBaseUrl").value || DEER_CLIPPER_DEFAULTS.apiBaseUrl),
      webBaseUrl: deerNormalizeBaseUrl(document.getElementById("webBaseUrl").value || DEER_CLIPPER_DEFAULTS.webBaseUrl),
    });
    const response = await sendDiscoverServiceMessage();
    const settings = await chrome.storage.sync.get(DEER_CLIPPER_DEFAULTS);
    document.getElementById("apiBaseUrl").value = settings.apiBaseUrl || "";
    document.getElementById("webBaseUrl").value = settings.webBaseUrl || "";
    document.getElementById("serviceStatus").textContent = response.message || formatServiceStatus(settings);
  } catch (error) {
    document.getElementById("serviceStatus").textContent = error instanceof Error ? error.message : "服务地址识别失败。";
  } finally {
    button.disabled = false;
  }
}

async function syncTokenNow() {
  const button = document.getElementById("syncToken");
  button.disabled = true;
  document.getElementById("tokenStatus").textContent = "正在同步 zncm token...";
  try {
    await chrome.storage.sync.set({
      tokenSyncEnabled: document.getElementById("tokenSyncEnabled").checked,
      apiBaseUrl: deerNormalizeBaseUrl(document.getElementById("apiBaseUrl").value || DEER_CLIPPER_DEFAULTS.apiBaseUrl),
      webBaseUrl: deerNormalizeBaseUrl(document.getElementById("webBaseUrl").value || DEER_CLIPPER_DEFAULTS.webBaseUrl),
    });
    const response = await sendSyncTokenMessage();
    const settings = await chrome.storage.sync.get(DEER_CLIPPER_DEFAULTS);
    document.getElementById("accessToken").value = settings.accessToken || "";
    document.getElementById("apiBaseUrl").value = settings.apiBaseUrl || "";
    document.getElementById("webBaseUrl").value = settings.webBaseUrl || "";
    document.getElementById("serviceStatus").textContent = formatServiceStatus(settings);
    document.getElementById("tokenStatus").textContent = response.message || formatTokenStatus(settings);
  } catch (error) {
    document.getElementById("tokenStatus").textContent = error instanceof Error ? error.message : "Token 同步失败。";
  } finally {
    button.disabled = false;
  }
}

document.getElementById("save").addEventListener("click", saveSettings);
document.getElementById("discoverService").addEventListener("click", discoverServiceNow);
document.getElementById("syncToken").addEventListener("click", syncTokenNow);
void loadSettings();