"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useDrag = void 0;
var _react = require("react");
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
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."); }
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 _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
var useDrag = exports.useDrag = function useDrag(x, y, onDrag) {
  var _useState = (0, _react.useState)(false),
    _useState2 = _slicedToArray(_useState, 2),
    dragging = _useState2[0],
    setDragging = _useState2[1];
  var _useState3 = (0, _react.useState)({
      initX: 0,
      initY: 0,
      mouseDownX: 0,
      mouseDownY: 0
    }),
    _useState4 = _slicedToArray(_useState3, 2),
    initialDragState = _useState4[0],
    setInitialDragState = _useState4[1];
  var onMouseDown = (0, _react.useCallback)(function (e) {
    e.preventDefault();
    setInitialDragState({
      initX: x,
      initY: y,
      mouseDownX: e.clientX,
      mouseDownY: e.clientY
    });
    setDragging(true);
  }, [x, y, setDragging, setInitialDragState]);
  (0, _react.useEffect)(function () {
    var onMouseMove = function onMouseMove(e) {
      if (dragging) {
        var initX = initialDragState.initX,
          mouseDownX = initialDragState.mouseDownX,
          initY = initialDragState.initY,
          mouseDownY = initialDragState.mouseDownY;
        var dx = e.clientX - mouseDownX;
        var dy = e.clientY - mouseDownY;
        var _x = initX + dx;
        var _y = initY + dy;
        onDrag({
          x: _x,
          y: _y
        });
      }
    };
    window.addEventListener('mousemove', onMouseMove, {
      passive: true
    });
    return function () {
      return window.removeEventListener('mousemove', onMouseMove);
    };
  }, [initialDragState, dragging, onDrag]);
  (0, _react.useEffect)(function () {
    var onMouseUp = function onMouseUp() {
      setDragging(false);
    };
    window.addEventListener('mouseup', onMouseUp);
    return function () {
      return window.removeEventListener('mouseup', onMouseUp);
    };
  }, [setDragging]);
  return onMouseDown;
};