@joyid/common/src/utils/qss.ts

Shared code for JoyID SDK

/* eslint-disable unicorn/prefer-spread */
// @ts-nocheck

// qss has been slightly modified and inlined here for our use cases (and compression's sake). We've included it as a hard dependency for MIT license attribution.

export function encode(obj, pfx?: string) {
  let k
  let i
  let tmp
  let str = ''

  for (k in obj) {
    if ((tmp = obj[k]) !== void 0) {
      if (Array.isArray(tmp)) {
        for (i = 0; i < tmp.length; i++) {
          str && (str += '&')
          str += `${encodeURIComponent(k)}=${encodeURIComponent(tmp[i])}`
        }
      } else {
        str && (str += '&')
        str += `${encodeURIComponent(k)}=${encodeURIComponent(tmp)}`
      }
    }
  }

  return (pfx || '') + str
}

function toValue(mix) {
  if (!mix) return ''
  const str = decodeURIComponent(mix)
  if (str === 'false') return false
  if (str === 'true') return true
  return +str * 0 === 0 && `${+str}` === str ? +str : str
}

export function decode(str) {
  let tmp
  let k
  const out = {}
  const arr = str.split('&')

  while ((tmp = arr.shift())) {
    tmp = tmp.split('=')
    k = tmp.shift()
    // eslint-disable-next-line unicorn/prefer-ternary, unicorn/no-negated-condition
    if (out[k] !== void 0) {
      out[k] = [].concat(out[k], toValue(tmp.shift()))
    } else {
      out[k] = toValue(tmp.shift())
    }
  }

  return out
}