const BASE = '/api'

async function request(path, options) {
  const response = await fetch(`${BASE}${path}`, {
    headers: { 'Content-Type': 'application/json' },
    ...options,
  })

  if (!response.ok) {
    const body = await response.json().catch(() => ({}))
    throw new Error(body.detail || `Request failed: ${response.status}`)
  }

  return response.json()
}

export function getCategories() {
  return request('/categories')
}

export function listConversations() {
  return request('/conversations')
}

export function createConversation(title) {
  return request('/conversations', {
    method: 'POST',
    body: JSON.stringify({ title: title || null }),
  })
}

export function getConversation(id) {
  return request(`/conversations/${id}`)
}

export function deleteConversation(id) {
  return request(`/conversations/${id}`, { method: 'DELETE' })
}

export function sendMessage(id, message) {
  return request(`/conversations/${id}/messages`, {
    method: 'POST',
    body: JSON.stringify({ message }),
  })
}