Umbraco-CMS/src/Umbraco.Web.BackOffice/Trees/UrlHelperExtensions.cs

using System.Net;
using System.Text;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Umbraco.Cms.Core;
using Umbraco.Extensions;

namespace Umbraco.Cms.Web.BackOffice.Trees;

public static class UrlHelperExtensions
{
    internal static string GetTreePathFromFilePath(this IUrlHelper urlHelper, string? virtualPath, string basePath = "")
    {
        //This reuses the Logic from umbraco.cms.helpers.DeepLink class
        //to convert a filepath to a tree syncing path string.

        //removes the basepath from the path
        //and normalizes paths - / is used consistently between trees and editors
        basePath = basePath.TrimStart("~");
        virtualPath = virtualPath?.TrimStart("~");
        virtualPath = virtualPath?.Substring(basePath.Length);
        virtualPath = virtualPath?.Replace('\\', '/');

        //-1 is the default root id for trees
        var sb = new StringBuilder("-1");

        //split the virtual path and iterate through it
        var pathPaths = virtualPath?.Split(Constants.CharArrays.ForwardSlash);

        for (var p = 0; p < pathPaths?.Length; p++)
        {
            var path = WebUtility.UrlEncode(string.Join("/", pathPaths.Take(p + 1)));
            if (string.IsNullOrEmpty(path) == false)
            {
                sb.Append(",");
                sb.Append(path);
            }
        }

        return sb.ToString().TrimEnd(",");
    }

    public static string GetTreeUrl(
        this IUrlHelper urlHelper,
        UmbracoApiControllerTypeCollection umbracoApiControllerTypeCollection,
        Type treeType,
        string nodeId,
        FormCollection? queryStrings)
    {
        var actionUrl = urlHelper.GetUmbracoApiService(umbracoApiControllerTypeCollection, "GetNodes", treeType)?
            .EnsureEndsWith('?');

        //now we need to append the query strings
        actionUrl += "id=" + nodeId.EnsureEndsWith('&') + queryStrings?.ToQueryString("id",
            //Always ignore the custom start node id when generating URLs for tree nodes since this is a custom once-only parameter
            // that should only ever be used when requesting a tree to render (root), not a tree node
            TreeQueryStringParameters.StartNodeId);
        return actionUrl;
    }

    public static string GetMenuUrl(
        this IUrlHelper urlHelper,
        UmbracoApiControllerTypeCollection umbracoApiControllerTypeCollection,
        Type treeType,
        string nodeId,
        FormCollection? queryStrings)
    {
        var actionUrl = urlHelper.GetUmbracoApiService(umbracoApiControllerTypeCollection, "GetMenu", treeType)?
            .EnsureEndsWith('?');

        //now we need to append the query strings
        actionUrl += "id=" + nodeId.EnsureEndsWith('&') + queryStrings?.ToQueryString("id");
        return actionUrl;
    }
}