// Lightweight fetch wrapper for the Pi-Kit API endpoints exposed by the mock server
// and on-device Python API. All helpers below return parsed JSON or throw the
// JSON error body when the response is not 2xx.
const headers = { "Content-Type": "application/json" };

export async function api(path, opts = {}) {
  // When running `npm run dev` without the backend, allow mock JSON from /data/
  const isMock = import.meta?.env?.MODE === 'development' && path.startsWith('/api');

  const mockMap = {
    '/api/status': '/data/mock-status.json',
    '/api/updates/config': '/data/mock-updates.json',
    '/api/update/status': '/data/mock-update-status.json',
  };

  const target = isMock && mockMap[path] ? mockMap[path] : path;

  const res = await fetch(target, { headers, ...opts });

  // If mock files are missing, surface a clear error instead of JSON parse of HTML
  const text = await res.text();
  let data;
  try {
    data = JSON.parse(text);
  } catch (e) {
    throw new Error(`Expected JSON from ${target}, got: ${text.slice(0, 120)}...`);
  }

  if (!res.ok) throw data;
  return data;
}

export const getStatus = () => api("/api/status");
export const toggleUpdates = (enable) =>
  api("/api/updates/auto", {
    method: "POST",
    body: JSON.stringify({ enable }),
  });
export const getUpdateConfig = () => api("/api/updates/config");
export const saveUpdateConfig = (config) =>
  api("/api/updates/config", {
    method: "POST",
    body: JSON.stringify(config),
  });

// Pi-Kit release updater endpoints
export const getReleaseStatus = () => api("/api/update/status");
export const checkRelease = () =>
  api("/api/update/check", {
    method: "POST",
  });
export const applyRelease = () =>
  api("/api/update/apply", {
    method: "POST",
  });
export const rollbackRelease = () =>
  api("/api/update/rollback", {
    method: "POST",
  });
export const setReleaseAutoCheck = (enable) =>
  api("/api/update/auto", {
    method: "POST",
    body: JSON.stringify({ enable }),
  });
export const setReleaseChannel = (channel) =>
  api("/api/update/channel", {
    method: "POST",
    body: JSON.stringify({ channel }),
  });

export const triggerReset = (confirm) =>
  api("/api/reset", {
    method: "POST",
    body: JSON.stringify({ confirm }),
  });

export const addService = ({
  name,
  port,
  scheme,
  path,
  notice,
  notice_link,
  self_signed,
}) =>
  api("/api/services/add", {
    method: "POST",
    body: JSON.stringify({ name, port, scheme, path, notice, notice_link, self_signed }),
  });

export const updateService = ({
  port,
  name,
  new_port,
  scheme,
  path,
  notice,
  notice_link,
  self_signed,
}) =>
  api("/api/services/update", {
    method: "POST",
    body: JSON.stringify({
      port,
      name,
      new_port,
      scheme,
      path,
      notice,
      notice_link,
      self_signed,
    }),
  });

export const removeService = ({ port }) =>
  api("/api/services/remove", {
    method: "POST",
    body: JSON.stringify({ port }),
  });