/**
 * MIT License
 *
 * Copyright (c) 2019 Xu Liangzhan
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

import helperGetHGSKeys from './helperGetHGSKeys'
import hasOwn from './hasOwnProp'

const sKeyRE = /(.+)\[(\d+)\]$/

const valSet = (obj, key, isSet, value) => {
  if (obj[key]) {
    if (isSet) {
      obj[key] = value
    }
  } else {
    const matchs = key ? key.match(sKeyRE) : null
    const rest = isSet ? value : {}

    if (matchs) {
      const key = matchs[1]
      const index = parseInt(matchs[2])

      if (obj[key]) {
        obj[key][index] = rest
      } else {
        obj[key] = new Array(index + 1)
        obj[key][index] = rest
      }
    } else {
      obj[key] = rest
    }

    return rest
  }

  return obj[key]
}

const set = (obj, property, value) => {
  if (obj) {
    if (obj[property] || hasOwn(obj, property)) {
      obj[property] = value
    } else {
      let rest = obj
      let props = helperGetHGSKeys(property)
      let len = props.length

      for (let index = 0; index < len; index++) {
        rest = valSet(rest, props[index], index === len - 1, value)
      }
    }
  }

  return obj
}

export default set
