const base = import.meta.env.VITE_API_URL || ''

export function apiUrl(path: string): string {
  if (path.startsWith('http')) return path
  const p = path.startsWith('/') ? path : `/${path}`
  return base ? `${base.replace(/\/$/, '')}${p}` : p
}

export function getToken(): string | null {
  return localStorage.getItem('authToken')
}

export async function apiFetch(
  path: string,
  options: RequestInit & { auth?: boolean } = {},
): Promise<Response> {
  const headers = new Headers(options.headers)
  if (!headers.has('Content-Type') && options.body && typeof options.body === 'string') {
    headers.set('Content-Type', 'application/json')
  }
  if (options.auth !== false) {
    const t = getToken()
    if (t) headers.set('Authorization', `Bearer ${t}`)
  }
  return fetch(apiUrl(path), { ...options, headers })
}