// Базовый URL API (берётся из внешнего config.js)
const API_BASE = window.APP_CONFIG?.API_BASE || ''

// Формирование полного URL (добавляет домен к относительным путям)
export const getFullUrl = (url) => {
  if (!url) return ''
  if (url.startsWith('http://') || url.startsWith('https://') || url.startsWith('data:')) {
    return url
  }
  return API_BASE + url
}

// Базовая функция запроса
const request = async (endpoint, options = {}) => {
  const res = await fetch(`${API_BASE}${endpoint}`, options)
  return res.json()
}

// ==================== AUTH ====================
export const authApi = {
  login: (username, password) => request('/api/user', { 
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'auth_login', username, password }) 
  }),
  check: () => request('/api/user', { 
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'check_session' }) 
  }),
  logout: () => request('/api/user', { 
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'logout' }) 
  })
}

// ==================== PROJECTS ====================
export const projectsApi = {
  // active: ID проекта для загрузки данных (опционально)
  getAll: (active = null) => {
    let url = '/api/project'
    if (active) url += `?active=${active}`
    return request(url, { credentials: 'include' })
  },
  // Получение данных проекта (проект + колонки + отделы) — один запрос вместо трёх
  getData: (id_project) => request('/api/project', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'get_project_data', id_project })
  }),
  create: (data) => request('/api/project', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'create', ...data })
  }),
  update: (data) => request('/api/project', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'update', ...data })
  }),
  delete: (id) => request('/api/project', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'delete', id })
  }),
  setReadyColumn: (id_project, column_id) => request('/api/project', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'set_ready_column', id_project, column_id })
  })
}

// ==================== CARDS ====================
export const cardsApi = {
  // id_project: ID проекта (обязательный)
  // archive: 0 = неархивные (по умолчанию), 1 = архивные, 'all' = все
  getAll: (id_project, archive = 0) => {
    let url = `/api/task?id_project=${id_project}`
    if (archive !== 0) url += `&archive=${archive}`
    return request(url, { credentials: 'include' })
  },
  updateOrder: (id, column_id, to_index) => request('/api/task', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'update_order', id, column_id, to_index })
  }),
  create: (data) => request('/api/task', { 
    method: 'POST', 
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'create', ...data }) 
  }),
  update: (data) => request('/api/task', { 
    method: 'POST', 
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'update', ...data }) 
  }),
  delete: (id) => request('/api/task', { 
    method: 'POST', 
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'delete', id })
  }),
  setArchive: (id, archive = 1) => request('/api/task', { 
    method: 'POST', 
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'set_archive', id, archive })
  })
}

// ==================== TASK IMAGES ====================
export const taskImageApi = {
  upload: (task_id, file_data, file_name) => request('/api/task', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'upload_image', task_id, file_data, file_name })
  }),
  // Принимает строку (один файл) или массив (несколько файлов)
  delete: (task_id, file_names) => request('/api/task', {
    method: 'POST',
    credentials: 'include',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ action: 'delete_image', task_id, file_names })
  })
}

// ==================== USERS ====================
export const usersApi = {
  getAll: () => request('/api/user', { credentials: 'include' })
}