var global = require('../internals/global');
var isCallable = require('../internals/is-callable');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
var makeBuiltIn = require('../internals/make-built-in');
var setGlobal = require('../internals/set-global');

module.exports = function (O, key, value, options) {
  var unsafe = options ? !!options.unsafe : false;
  var simple = options ? !!options.enumerable : false;
  var noTargetGet = options ? !!options.noTargetGet : false;
  var name = options && options.name !== undefined ? options.name : key;
  if (isCallable(value)) makeBuiltIn(value, name, options);
  if (O === global) {
    if (simple) O[key] = value;
    else setGlobal(key, value);
    return O;
  } else if (!unsafe) {
    delete O[key];
  } else if (!noTargetGet && O[key]) {
    simple = true;
  }
  if (simple) O[key] = value;
  else createNonEnumerableProperty(O, key, value);
  return O;
};