import { entriesOfPhpAssoc, type PhpArrayLike, type PhpAssoc, toPhpArrayObject } from '../_helpers/_phpTypes.ts'

export function array_diff_key<TValue>(
  arr1: PhpArrayLike<TValue>,
  ...arrays: Array<PhpArrayLike<TValue>>
): PhpAssoc<TValue> {
  //  discuss at: https://locutus.io/php/array_diff_key/
  // original by: Ates Goral (https://magnetiq.com)
  //  revised by: Brett Zamir (https://brett-zamir.me)
  //    input by: Everlasto
  //   example 1: array_diff_key({red: 1, green: 2, blue: 3, white: 4}, {red: 5})
  //   returns 1: {"green":2, "blue":3, "white":4}
  //   example 2: array_diff_key({red: 1, green: 2, blue: 3, white: 4}, {red: 5}, {red: 5})
  //   returns 2: {"green":2, "blue":3, "white":4}

  const retArr: PhpAssoc<TValue> = {}

  if (arrays.length < 1) {
    return retArr
  }

  const arr1Object = toPhpArrayObject<TValue>(arr1)
  arr1keys: for (const [k1, arr1Value] of entriesOfPhpAssoc(arr1Object)) {
    for (const nextArray of arrays) {
      const arr = toPhpArrayObject<TValue>(nextArray)
      for (const [k] of entriesOfPhpAssoc(arr)) {
        if (k === k1) {
          continue arr1keys
        }
      }
    }
    retArr[k1] = arr1Value
  }

  return retArr
}