// Replaces nanoquery 1.3.0 (MIT) with the platform's URLSearchParams.
// Semantics preserved: returns a plain object; repeated keys become arrays.

import { equal } from './assert.js'

export default function nanoquery (url) {
  equal(typeof url, 'string', 'nanoquery: url should be type string')

  const query = {}
  const index = url.indexOf('?')
  if (index === -1) return query

  const params = new URLSearchParams(url.slice(index + 1))
  for (const [key, value] of params) {
    if (Object.hasOwn(query, key)) {
      if (Array.isArray(query[key])) query[key].push(value)
      else query[key] = [query[key], value]
    } else {
      query[key] = value
    }
  }
  return query
}