"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = exports.useGridContext = void 0;

var _react = _interopRequireWildcard(require("react"));

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; if (obj != null) { var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

var GridContext = (0, _react.createContext)({
  items: []
});

function move(array, oldIndex, newIndex) {
  if (newIndex >= array.length) {
    newIndex = array.length - 1;
  }

  array.splice(newIndex, 0, array.splice(oldIndex, 1)[0]);
  return array;
}

function moveElement(array, index, offset) {
  var newIndex = index + offset;
  return move(array, index, newIndex);
}

var GridProvider = function GridProvider(_ref) {
  var children = _ref.children;

  var _useState = (0, _react.useState)([]),
      _useState2 = _slicedToArray(_useState, 2),
      items = _useState2[0],
      setItems = _useState2[1];

  var _useState3 = (0, _react.useState)(),
      _useState4 = _slicedToArray(_useState3, 2),
      removedItem = _useState4[0],
      setRemovedItem = _useState4[1];

  var moveItem = function moveItem(sourceId, destinationId) {
    var sourceIndex = items.findIndex(function (item) {
      return item.id === sourceId;
    });
    var destinationIndex = items.findIndex(function (item) {
      return item.id === destinationId;
    }); // If source/destination is unknown, do nothing.

    if (sourceId === -1 || destinationId === -1) {
      return;
    }

    var offset = destinationIndex - sourceIndex;
    var newItems = moveElement(items, sourceIndex, offset);
    console.log(newItems.map(function (e) {
      return e.id;
    }));
    setItems(_toConsumableArray(newItems));
  };

  var removeItem = function removeItem(sourceId) {
    var array = _toConsumableArray(items);

    var sourceIndex = array.findIndex(function (item) {
      return item.id === sourceId;
    });
    setRemovedItem(array.splice(sourceIndex, 1)[0]);
    setItems(array);
  };

  return _react["default"].createElement(GridContext.Provider, {
    value: {
      items: items,
      setItems: setItems,
      moveItem: moveItem,
      removeItem: removeItem
    }
  }, children);
};

var useGridContext = function useGridContext() {
  var context = (0, _react.useContext)(GridContext);

  if (!context) {
    throw new Error('Cannot use grid context out side grid context provider');
  }

  return context;
};

exports.useGridContext = useGridContext;
var _default = GridProvider;
exports["default"] = _default;