@dnb/eufemia/cjs/extensions/forms/hooks/useSnapshot.js

DNB Eufemia Design System UI Library

"use strict";
"use client";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = useSnapshot;
var _react = require("react");
var _componentHelper = require("../../../shared/component-helper.js");
var _index = _interopRequireDefault(require("../utils/json-pointer/index.js"));
var _useDataContext = _interopRequireDefault(require("./useDataContext.js"));
var _useData = _interopRequireDefault(require("../Form/data-context/useData.js"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function useSnapshot(id) {
  const internalSnapshotsRef = (0, _react.useRef)();
  if (!internalSnapshotsRef.current) {
    internalSnapshotsRef.current = new Map();
  }
  const {
    getContext
  } = (0, _useDataContext.default)(id);
  const {
    set: setData,
    update: updateData
  } = (0, _useData.default)(id);
  const {
    internalDataRef,
    snapshotsRef
  } = getContext() || {};
  const internalData = internalDataRef === null || internalDataRef === void 0 ? void 0 : internalDataRef.current;
  const createSnapshot = (0, _react.useCallback)((id = (0, _componentHelper.makeUniqueId)(), name = null, content = null) => {
    if (!content) {
      var _snapshotsRef$current, _snapshotsRef$current2;
      const snapshotWithPaths = snapshotsRef === null || snapshotsRef === void 0 || (_snapshotsRef$current = snapshotsRef.current) === null || _snapshotsRef$current === void 0 || (_snapshotsRef$current2 = _snapshotsRef$current.get) === null || _snapshotsRef$current2 === void 0 ? void 0 : _snapshotsRef$current2.call(_snapshotsRef$current, name);
      if (snapshotWithPaths) {
        const collectedData = new Map();
        snapshotWithPaths.forEach((isMounted, path) => {
          if (isMounted && _index.default.has(internalData, path)) {
            collectedData.set(path, _index.default.get(internalData, path));
          }
        });
        content = collectedData;
      } else {
        content = internalData;
      }
    }
    internalSnapshotsRef.current.set(combineIdWithName(id, name), content);
    return id;
  }, [internalData, snapshotsRef]);
  const getSnapshot = (0, _react.useCallback)((id, name = null) => {
    return internalSnapshotsRef.current.get(combineIdWithName(id, name));
  }, []);
  const deleteSnapshot = (0, _react.useCallback)((id, name = null) => {
    internalSnapshotsRef.current.delete(combineIdWithName(id, name));
  }, []);
  const applySnapshot = (0, _react.useCallback)((id, name = null) => {
    const snapshot = getSnapshot(id, name);
    if (snapshot instanceof Map) {
      snapshot.forEach((value, path) => {
        updateData(path, value);
      });
    } else if (snapshot) {
      setData(snapshot);
    }
  }, [getSnapshot, setData, updateData]);
  const revertSnapshot = (0, _react.useCallback)((id, name = null) => {
    applySnapshot(id, name);
    deleteSnapshot(id, name);
  }, [applySnapshot, deleteSnapshot]);
  return (0, _react.useMemo)(() => {
    return {
      createSnapshot,
      revertSnapshot,
      applySnapshot,
      internalSnapshotsRef
    };
  }, [applySnapshot, createSnapshot, revertSnapshot]);
}
function combineIdWithName(id, name = null) {
  return name ? `${id}-${name}` : id;
}
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