source: trip-planner-front/node_modules/@angular/router/esm2015/src/utils/tree.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
export class Tree {
    constructor(root) {
        this._root = root;
    }
    get root() {
        return this._root.value;
    }
    /**
     * @internal
     */
    parent(t) {
        const p = this.pathFromRoot(t);
        return p.length > 1 ? p[p.length - 2] : null;
    }
    /**
     * @internal
     */
    children(t) {
        const n = findNode(t, this._root);
        return n ? n.children.map(t => t.value) : [];
    }
    /**
     * @internal
     */
    firstChild(t) {
        const n = findNode(t, this._root);
        return n && n.children.length > 0 ? n.children[0].value : null;
    }
    /**
     * @internal
     */
    siblings(t) {
        const p = findPath(t, this._root);
        if (p.length < 2)
            return [];
        const c = p[p.length - 2].children.map(c => c.value);
        return c.filter(cc => cc !== t);
    }
    /**
     * @internal
     */
    pathFromRoot(t) {
        return findPath(t, this._root).map(s => s.value);
    }
}
// DFS for the node matching the value
function findNode(value, node) {
    if (value === node.value)
        return node;
    for (const child of node.children) {
        const node = findNode(value, child);
        if (node)
            return node;
    }
    return null;
}
// Return the path to the node with the given value using DFS
function findPath(value, node) {
    if (value === node.value)
        return [node];
    for (const child of node.children) {
        const path = findPath(value, child);
        if (path.length) {
            path.unshift(node);
            return path;
        }
    }
    return [];
}
export class TreeNode {
    constructor(value, children) {
        this.value = value;
        this.children = children;
    }
    toString() {
        return `TreeNode(${this.value})`;
    }
}
// Return the list of T indexed by outlet name
export function nodeChildrenAsMap(node) {
    const map = {};
    if (node) {
        node.children.forEach(child => map[child.value.outlet] = child);
    }
    return map;
}
//# sourceMappingURL=data:application/json;base64,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