'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var React = require('react');

function _interopNamespaceCompat(e) {
  if (e && typeof e === 'object' && 'default' in e) return e;
  var n = Object.create(null);
  if (e) {
    Object.keys(e).forEach(function (k) {
      if (k !== 'default') {
        var d = Object.getOwnPropertyDescriptor(e, k);
        Object.defineProperty(n, k, d.get ? d : {
          enumerable: true,
          get: function () { return e[k]; }
        });
      }
    });
  }
  n.default = e;
  return Object.freeze(n);
}

var React__namespace = /*#__PURE__*/_interopNamespaceCompat(React);

function _iterableToArrayLimit(arr, i) {
  var _i = null == arr ? null : "undefined" != typeof Symbol && arr[Symbol.iterator] || arr["@@iterator"];
  if (null != _i) {
    var _s,
      _e,
      _x,
      _r,
      _arr = [],
      _n = !0,
      _d = !1;
    try {
      if (_x = (_i = _i.call(arr)).next, 0 === i) {
        if (Object(_i) !== _i) return;
        _n = !1;
      } else for (; !(_n = (_s = _x.call(_i)).done) && (_arr.push(_s.value), _arr.length !== i); _n = !0);
    } catch (err) {
      _d = !0, _e = err;
    } finally {
      try {
        if (!_n && null != _i.return && (_r = _i.return(), Object(_r) !== _r)) return;
      } finally {
        if (_d) throw _e;
      }
    }
    return _arr;
  }
}
function _slicedToArray(arr, i) {
  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}
function _arrayWithHoles(arr) {
  if (Array.isArray(arr)) return arr;
}
function _unsupportedIterableToArray(o, minLen) {
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
  var n = Object.prototype.toString.call(o).slice(8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return Array.from(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
  if (len == null || len > arr.length) len = arr.length;
  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
  return arr2;
}
function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

/**
 * Reack hook
 */
var useKeyPress = function useKeyPress(targetKey, handleKeyDown, handleKeyUp) {
  // State for keeping track of whether key is pressed
  var _React$useState = React__namespace.useState(false),
    _React$useState2 = _slicedToArray(_React$useState, 2),
    keyPressed = _React$useState2[0],
    setKeyPressed = _React$useState2[1];

  // If pressed key is our target key then set to true
  var downHandler = function downHandler(event) {
    if (event.key === targetKey) {
      handleKeyDown ? handleKeyDown(event) : setKeyPressed(true);
    }
  };

  // If released key is our target key then set to false
  var upHandler = function upHandler(event) {
    if (event.key === targetKey) {
      handleKeyUp ? handleKeyUp(event) : setKeyPressed(false);
    }
  };

  // Add event listeners
  React__namespace.useEffect(function () {
    window.addEventListener('keydown', downHandler);
    window.addEventListener('keyup', upHandler);
    // Remove event listeners on cleanup
    return function () {
      window.removeEventListener('keydown', downHandler);
      window.removeEventListener('keyup', upHandler);
    };
  }, [targetKey, handleKeyDown, handleKeyUp]);
  return keyPressed;
};

exports.useKeyPress = useKeyPress;
