function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
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$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import { useMemo, useRef, useState } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { ArrowRightOutline, ArrowLeftOutline } from '@scaleflex/icons';
import isTransparencySupported from '@filerobot/utils/lib/isTransparencySupported';
import { DEFAULT_ZOOM_RATIO, WHEEL_ZOOM_RATIO_PERCENTAGE, MIN_ZOOM_RATIO, MAX_ZOOM_RATIO } from './Body.constants';
import BodyFile from './BodyFile';
import StyledBody from './Body.styled';
import PreviewPlaceholder from './PreviewPlaceholder';
import { selectCurrentFilesArray } from '../../../slices/files.slice';
import { fileWindowUpdated } from '../../../slices/panels.slice';
import { jsx as _jsx } from "react/jsx-runtime";
import { jsxs as _jsxs } from "react/jsx-runtime";
var previousTouch;
var Preview = function Preview(_ref) {
  var _ref$previewedFile = _ref.previewedFile,
    previewedFile = _ref$previewedFile === void 0 ? {} : _ref$previewedFile,
    _ref$displayedVariant = _ref.displayedVariant,
    displayedVariant = _ref$displayedVariant === void 0 ? {} : _ref$displayedVariant,
    isCommentsTabOpened = _ref.isCommentsTabOpened,
    zoomRatio = _ref.zoomRatio,
    setZoomRatio = _ref.setZoomRatio,
    isPdfPreviewSupported = _ref.isPdfPreviewSupported,
    videoEl = _ref.videoEl,
    setVideoRef = _ref.setVideoRef,
    isFileLoading = _ref.isFileLoading,
    isFileFailedToLoad = _ref.isFileFailedToLoad,
    setFileData = _ref.setFileData,
    imgEl = _ref.imgEl,
    setImgRef = _ref.setImgRef,
    isMediaLoadingFailed = _ref.isMediaLoadingFailed,
    setIsMediaLoadingFailed = _ref.setIsMediaLoadingFailed,
    alertUnsavedChangesFirst = _ref.alertUnsavedChangesFirst;
  var dispatch = useDispatch();
  var filesArray = useSelector(selectCurrentFilesArray);
  var previewEl = useRef();
  var _useState = useState(false),
    _useState2 = _slicedToArray(_useState, 2),
    isPanEnabled = _useState2[0],
    setIsPanEnabled = _useState2[1];
  var _useState3 = useState({
      x: 0,
      y: 0
    }),
    _useState4 = _slicedToArray(_useState3, 2),
    panningDimens = _useState4[0],
    setPanningDimens = _useState4[1];
  var isOneFile = filesArray.length === 1;
  var currentIndex = useMemo(function () {
    return Array.isArray(filesArray) ? filesArray.findIndex(function (item) {
      return item.uuid && previewedFile.uuid ? item.uuid === previewedFile.uuid : item.id === previewedFile.id;
    }) : 0;
  }, [filesArray, previewedFile]);
  var isLastFile = currentIndex === (filesArray === null || filesArray === void 0 ? void 0 : filesArray.length) - 1;
  var disablePan = function disablePan() {
    setIsPanEnabled(false);
    previousTouch = null;
    document.removeEventListener('mouseleave', disablePan);
    document.removeEventListener('mouseup', disablePan);
    document.removeEventListener('touchcancel', disablePan);
    document.removeEventListener('touchend', disablePan);
  };
  var enablePan = function enablePan() {
    setIsPanEnabled(true);
    // We are setting those events on document to support panning
    // even if user went outside element and get back while holding pointer down
    document.addEventListener('mouseleave', disablePan, {
      once: true
    });
    document.addEventListener('mouseup', disablePan, {
      once: true
    });
    document.addEventListener('touchcancel', disablePan, {
      once: true
    });
    document.addEventListener('touchend', disablePan, {
      once: true
    });
  };
  var handlePanning = function handlePanning(e) {
    if (isPanEnabled && imgEl.current && zoomRatio > DEFAULT_ZOOM_RATIO) {
      var panningArea = {
        x: (imgEl.current.width * zoomRatio - previewEl.current.offsetWidth) / (2 * zoomRatio),
        y: (imgEl.current.height * zoomRatio - previewEl.current.offsetHeight) / (2 * zoomRatio)
      };
      setPanningDimens(function (latestDimens) {
        return {
          x: Math.min(Math.max(-panningArea.x, latestDimens.x + e.movementX), panningArea.x),
          y: Math.min(Math.max(-panningArea.y, latestDimens.y + e.movementY), panningArea.y)
        };
      });
    }
  };
  var handleTouchPanning = function handleTouchPanning(e) {
    var touch = e.touches[0];
    if (previousTouch) {
      setIsPanEnabled(true);
      var event = _objectSpread(_objectSpread({}, e), {}, {
        movementX: touch.pageX - previousTouch.pageX,
        movementY: touch.pageY - previousTouch.pageY
      });
      handlePanning(event);
    }
    previousTouch = touch;
  };
  var zoomByWheel = function zoomByWheel(e) {
    if (isPdfPreviewSupported || isCommentsTabOpened) return; // [TODO]: currently we have a big delay when zoom PDF by wheel

    setZoomRatio(function (latestZoomRatio) {
      return Math.min(MAX_ZOOM_RATIO, Math.max(MIN_ZOOM_RATIO, latestZoomRatio + (e.deltaY > 1 ? -WHEEL_ZOOM_RATIO_PERCENTAGE : WHEEL_ZOOM_RATIO_PERCENTAGE)));
    });
  };
  var updateFileWindow = function updateFileWindow(fileUuid) {
    dispatch(fileWindowUpdated({
      "for": fileUuid,
      enableEdit: false,
      enableRename: false
    }));
  };
  var getNextFile = function getNextFile() {
    var nextIndex = currentIndex + 1;
    var nextFile = nextIndex < filesArray.length ? filesArray[nextIndex] : filesArray[0];
    if (nextFile) {
      alertUnsavedChangesFirst(function () {
        updateFileWindow(nextFile.uuid || nextFile.id);
      });
    }
  };
  var getPreviousFile = function getPreviousFile() {
    var previousIndex = currentIndex === 0 ? filesArray.length - 1 : currentIndex - 1;
    var previousFile = filesArray[previousIndex];
    if (previousFile) {
      alertUnsavedChangesFirst(function () {
        updateFileWindow(previousFile.uuid || previousFile.id);
      });
    }
  };
  var displayedFile = _objectSpread(_objectSpread({}, previewedFile), displayedVariant);
  if (isFileFailedToLoad) {
    return /*#__PURE__*/_jsx(StyledBody.Body, {
      ref: previewEl,
      onTouchMove: handleTouchPanning,
      onMouseDown: enablePan,
      onMouseMove: handlePanning,
      onWheel: zoomByWheel,
      $fullWidth: isPdfPreviewSupported,
      draggable: "false",
      $hidePagination: isOneFile,
      children: /*#__PURE__*/_jsx(PreviewPlaceholder, {
        setFileData: setFileData
      })
    });
  }
  if (isFileLoading) {
    return /*#__PURE__*/_jsx(StyledBody.Body, {
      ref: previewEl,
      onTouchMove: handleTouchPanning,
      onMouseDown: enablePan,
      onMouseMove: handlePanning,
      onWheel: zoomByWheel,
      $fullWidth: isPdfPreviewSupported,
      draggable: "false",
      $hidePagination: isOneFile,
      isFileLoading: isFileLoading,
      children: /*#__PURE__*/_jsx(StyledBody.Skeleton, {
        height: 250
      })
    });
  }
  return /*#__PURE__*/_jsxs(StyledBody.Body, {
    ref: previewEl,
    onTouchMove: handleTouchPanning,
    onMouseDown: enablePan,
    onMouseMove: handlePanning,
    onWheel: zoomByWheel,
    $fullWidth: isPdfPreviewSupported,
    draggable: "false",
    $hidePagination: isOneFile,
    children: [/*#__PURE__*/_jsx(StyledBody.FilePaginationButtons, {
      color: "primary",
      left: true,
      onClick: getPreviousFile,
      disabled: !currentIndex,
      children: /*#__PURE__*/_jsx(ArrowLeftOutline, {
        size: 20
      })
    }), /*#__PURE__*/_jsx(BodyFile, {
      file: displayedFile,
      zoomRatio: zoomRatio,
      panningDimens: panningDimens,
      setPanningDimens: setPanningDimens,
      isPanEnabled: isPanEnabled,
      imgEl: imgEl,
      setImgRef: setImgRef,
      previewEl: previewEl,
      videoEl: videoEl,
      isPdfPreviewSupported: isPdfPreviewSupported,
      isTransparencySupported: isTransparencySupported(displayedFile),
      setVideoRef: setVideoRef,
      isCommentsTabOpened: isCommentsTabOpened,
      isMediaLoadingFailed: isMediaLoadingFailed,
      setIsMediaLoadingFailed: setIsMediaLoadingFailed
    }), /*#__PURE__*/_jsx(StyledBody.FilePaginationButtons, {
      color: "primary",
      onClick: getNextFile,
      disabled: isLastFile,
      children: /*#__PURE__*/_jsx(ArrowRightOutline, {
        size: 20
      })
    })]
  });
};
export default Preview;