// Same-origin API wrapper (api проксируется через nginx на тот же домен)
// Никаких retry/timeout на login — только UI feedback

const DEFAULT_INIT = {
  credentials: 'include',
  cache: 'no-store',
  redirect: 'follow',
};

export async function api(path, options = {}) {
  const { json, headers: extraHeaders, ...rest } = options;
  const headers = new Headers(extraHeaders || {});
  let body = rest.body;

  if (json !== undefined) {
    headers.set('Content-Type', 'application/json');
    body = JSON.stringify(json);
  }
  if (!headers.has('Accept')) {
    headers.set('Accept', 'application/json');
  }

  const res = await fetch(path, {
    ...DEFAULT_INIT,
    ...rest,
    headers,
    body,
  });

  const ct = res.headers.get('content-type') || '';
  const isJson = ct.includes('application/json');
  const data = isJson ? await res.json().catch(() => null) : await res.text();

  if (!res.ok) {
    const err = new Error((data && (data.message || data.error)) || `HTTP ${res.status}`);
    err.status = res.status;
    err.data = data;
    throw err;
  }
  return data;
}

export const apiGet = (path, opts) => api(path, { ...opts, method: 'GET' });
export const apiPost = (path, json, opts) => api(path, { ...opts, method: 'POST', json });
export const apiPut = (path, json, opts) => api(path, { ...opts, method: 'PUT', json });
export const apiDelete = (path, opts) => api(path, { ...opts, method: 'DELETE' });

// Совместимость со старым window.API.Auth
window.API = {
  api, apiGet, apiPost, apiPut, apiDelete,
  // обёртки для совместимости со старыми view
  Auth: {
    loginEmail: (email, password) => apiPost('/api/v1/auth/login', { email, password }),
    registerEmail: (data) => apiPost('/api/v1/auth/register', data),
    me: () => apiGet('/api/v1/me'),
    updateMe: (p) => apiPut('/api/v1/me', p),
    getPrefs: () => apiGet('/api/v1/me/prefs'),
    updatePrefs: (p) => apiPut('/api/v1/me/prefs', p),
    updateLocation: (lat, lng, visible) => apiPut('/api/v1/me/location', { lat, lng, visible }),
    setVisibility: (v) => apiPut('/api/v1/me/visibility', { visible: v }),
    searchNearby: (lat, lng, radius) => apiGet(`/api/v1/search/nearby?lat=${lat}&lng=${lng}&radius=${radius}`),
    getUser: (id) => apiGet('/api/v1/users/' + id),
  },
  ChatApi: {
    ensureChat: (otherId) => apiPost('/api/v1/chats', { other_id: otherId }),
    listChats: () => apiGet('/api/v1/chats'),
    listMessages: (chatId) => apiGet('/api/v1/chats/' + chatId + '/messages'),
    sendMessage: (chatId, body, photoUrl) => apiPost('/api/v1/chats/' + chatId + '/messages', { body, photo_url: photoUrl }),
    editMessage: (msgId, body) => apiPut('/api/v1/messages/' + msgId, { body }),
    deleteMessage: (msgId) => apiDelete('/api/v1/messages/' + msgId),
    markRead: (chatId) => apiPut('/api/v1/chats/' + chatId + '/read', {}),
    block: (userId) => apiPost('/api/v1/blocks', { user_id: userId }),
    report: (type, id, reason) => apiPost('/api/v1/reports', { target_type: type, target_id: id, reason }),
  },
  ReviewApi: {
    create: (chatId, rating, body, anonymous) => apiPost('/api/v1/reviews', { chat_id: chatId, rating, body, anonymous }),
    listForUser: (userId) => apiGet('/api/v1/users/' + userId + '/reviews'),
    stats: (userId) => apiGet('/api/v1/users/' + userId + '/stats'),
  },
  ConsentApi: {
    status: () => apiGet('/api/v1/auth/consents').catch(() => ({ all_accepted: false, accepted: {} })),
    accept: (payload) => apiPost('/api/v1/auth/consents', payload),
  },
  PlacesApi: {
    nearby: (lat, lng, radius, limit = 30) => apiGet(`/api/v1/places/nearby?lat=${lat}&lng=${lng}&radius=${radius || 5}&limit=${limit}`).catch((e) => ({ places: [], count: 0, error: e.message })),
  },
  Store: {
    access: null,
    refresh: null,
    user: null,
    save(tokens) {
      if (!tokens) return;
      this.access = tokens.Access || tokens.access;
      this.refresh = tokens.Refresh || tokens.refresh;
    },
    load() { return this.access; },
    clear() { this.access = null; this.refresh = null; this.user = null; },
  },
};