import axios from 'axios';

const API_URL = import.meta.env.VITE_API_URL;
const baseURL = API_URL ? `${API_URL.replace(/\/$/, '')}/api` : '/api';

const api = axios.create({
  baseURL,
  headers: {
    'Content-Type': 'application/json'
  }
});

// Add token to requests
api.interceptors.request.use((config) => {
  const token = localStorage.getItem('token');
  if (token) {
    config.headers.Authorization = `Bearer ${token}`;
  }
  return config;
});

// Handle 401 errors
api.interceptors.response.use(
  (response) => response,
  (error) => {
    if (error.response?.status === 401) {
      localStorage.removeItem('token');
      window.location.href = '/login';
    }
    return Promise.reject(error);
  }
);

export default api;

// Auth API
export const authAPI = {
  register: (email, password) => api.post('/auth/register', { email, password }),
  login: (email, password) => api.post('/auth/login', { email, password }),
  getMe: () => api.get('/auth/me')
};

// Contacts API
export const contactsAPI = {
  list: (params) => api.get('/contacts', { params }),
  get: (id) => api.get(`/contacts/${id}`),
  create: (data) => api.post('/contacts', data),
  update: (id, data) => api.put(`/contacts/${id}`, data),
  delete: (id) => api.delete(`/contacts/${id}`),
  
  // Tags
  listTags: () => api.get('/contacts/tags'),
  createTag: (name) => api.post('/contacts/tags', { name }),
  addTag: (contactId, tagId) => api.post(`/contacts/${contactId}/tags/${tagId}`),
  removeTag: (contactId, tagId) => api.delete(`/contacts/${contactId}/tags/${tagId}`),
  
  // DND
  listDND: () => api.get('/contacts/dnd'),
  addDND: (data) => api.post('/contacts/dnd', data),
  removeDND: (id) => api.delete(`/contacts/dnd/${id}`)
};

// Lists API
export const listsAPI = {
  list: () => api.get('/lists'),
  get: (id) => api.get(`/lists/${id}`),
  create: (data) => api.post('/lists', data),
  update: (id, data) => api.put(`/lists/${id}`, data),
  delete: (id) => api.delete(`/lists/${id}`),
  getContacts: (id) => api.get(`/lists/${id}/contacts`),
  addMembers: (id, contactIds) => api.post(`/lists/${id}/members`, { contact_ids: contactIds }),
  removeMembers: (id, contactIds) => api.delete(`/lists/${id}/members`, { data: { contact_ids: contactIds } })
};

// Templates API
export const templatesAPI = {
  list: () => api.get('/templates'),
  get: (id) => api.get(`/templates/${id}`),
  create: (data) => api.post('/templates', data),
  update: (id, data) => api.put(`/templates/${id}`, data),
  delete: (id) => api.delete(`/templates/${id}`)
};

// Campaigns API
export const campaignsAPI = {
  list: (params) => api.get('/campaigns', { params }),
  get: (id) => api.get(`/campaigns/${id}`),
  create: (data) => api.post('/campaigns', data),
  update: (id, data) => api.put(`/campaigns/${id}`, data),
  delete: (id) => api.delete(`/campaigns/${id}`),
  preview: (id) => api.get(`/campaigns/${id}/preview`),
  send: (id) => api.post(`/campaigns/${id}/send`),
  reset: (id) => api.post(`/campaigns/${id}/reset`),
  getRecipients: (id, params) => api.get(`/campaigns/${id}/recipients`, { params })
};

// Imports API
export const importsAPI = {
  uploadExcel: (file) => {
    const formData = new FormData();
    formData.append('file', file);
    return api.post('/imports/excel', formData, {
      headers: { 'Content-Type': 'multipart/form-data' }
    });
  },
  uploadCSV: (file) => {
    const formData = new FormData();
    formData.append('file', file);
    return api.post('/imports/csv', formData, {
      headers: { 'Content-Type': 'multipart/form-data' }
    });
  },
  googleAuthStart: () => api.get('/imports/google/start'),
  googleSync: () => api.post('/imports/google/sync')
};

// Stats API
export const statsAPI = {
  get: () => api.get('/stats')
};

// Workers API
export const workersAPI = {
  tick: () => api.post('/workers/tick')
};