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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.createPath = createPath;
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function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
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function findParent(_ref, cb) {
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var parentPath = _ref.parentPath;
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if (parentPath == null) {
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throw new Error("node is root");
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}
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var currentPath = parentPath;
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while (cb(currentPath) !== false) {
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// Hit the root node, stop
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// $FlowIgnore
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if (currentPath.parentPath == null) {
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return null;
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} // $FlowIgnore
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currentPath = currentPath.parentPath;
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}
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return currentPath.node;
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}
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function insertBefore(context, newNode) {
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return insert(context, newNode);
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}
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function insertAfter(context, newNode) {
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return insert(context, newNode, 1);
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}
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function insert(_ref2, newNode) {
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var node = _ref2.node,
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inList = _ref2.inList,
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parentPath = _ref2.parentPath,
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parentKey = _ref2.parentKey;
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var indexOffset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
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if (!inList) {
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throw new Error('inList' + " error: " + ("insert can only be used for nodes that are within lists" || "unknown"));
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}
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if (!(parentPath != null)) {
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throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
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}
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// $FlowIgnore
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var parentList = parentPath.node[parentKey];
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var indexInList = parentList.findIndex(function (n) {
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return n === node;
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});
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parentList.splice(indexInList + indexOffset, 0, newNode);
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}
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function remove(_ref3) {
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var node = _ref3.node,
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parentKey = _ref3.parentKey,
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parentPath = _ref3.parentPath;
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if (!(parentPath != null)) {
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throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
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}
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// $FlowIgnore
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var parentNode = parentPath.node; // $FlowIgnore
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var parentProperty = parentNode[parentKey];
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if (Array.isArray(parentProperty)) {
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// $FlowIgnore
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parentNode[parentKey] = parentProperty.filter(function (n) {
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return n !== node;
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});
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} else {
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// $FlowIgnore
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delete parentNode[parentKey];
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}
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node._deleted = true;
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}
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function stop(context) {
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context.shouldStop = true;
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}
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function replaceWith(context, newNode) {
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// $FlowIgnore
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var parentNode = context.parentPath.node; // $FlowIgnore
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var parentProperty = parentNode[context.parentKey];
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if (Array.isArray(parentProperty)) {
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var indexInList = parentProperty.findIndex(function (n) {
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return n === context.node;
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});
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parentProperty.splice(indexInList, 1, newNode);
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} else {
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// $FlowIgnore
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parentNode[context.parentKey] = newNode;
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}
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context.node._deleted = true;
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context.node = newNode;
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} // bind the context to the first argument of node operations
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function bindNodeOperations(operations, context) {
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var keys = Object.keys(operations);
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var boundOperations = {};
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keys.forEach(function (key) {
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boundOperations[key] = operations[key].bind(null, context);
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});
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return boundOperations;
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}
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function createPathOperations(context) {
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// $FlowIgnore
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return bindNodeOperations({
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findParent: findParent,
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replaceWith: replaceWith,
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remove: remove,
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insertBefore: insertBefore,
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insertAfter: insertAfter,
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stop: stop
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}, context);
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}
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function createPath(context) {
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var path = _extends({}, context); // $FlowIgnore
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Object.assign(path, createPathOperations(path)); // $FlowIgnore
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return path;
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}
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