Files
mixtape/zero.Core/Routing/Page/PageUrlBuilder.cs
T
2021-11-06 16:27:04 +01:00

111 lines
2.2 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
using zero.Core.Api;
using zero.Core.Database;
using zero.Core.Entities;
using zero.Core.Extensions;
using zero.Core.Options;
namespace zero.Core.Routing
{
public class PageUrlBuilder : IPageUrlBuilder
{
const char PATH_SEPARATOR = '/';
const bool TRAILING_SLASH = false;
protected IZeroStore Store { get; private set; }
protected IZeroOptions Options { get; private set; }
public PageUrlBuilder(IZeroStore store, IZeroOptions options)
{
Store = store;
Options = options;
}
/// <inheritdoc />
public string GetUrl(Page page, IEnumerable<Page> parents)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(PATH_SEPARATOR);
void AddPart(Page page)
{
string part = GetUrlPart(page);
if (!part.IsNullOrEmpty())
{
stringBuilder.Append(part);
stringBuilder.Append(PATH_SEPARATOR);
}
}
if (parents != null)
{
foreach (Page parent in parents)
{
AddPart(parent);
}
}
AddPart(page);
if (!TRAILING_SLASH && stringBuilder.Length > 1)
{
stringBuilder.Remove(stringBuilder.Length - 1, 1);
}
return stringBuilder.ToString();
}
/// <inheritdoc />
public virtual string GetUrlPart(Page page)
{
string alias;
if (page is PageFolder && !((PageFolder)page).IsPartOfRoute)
{
return null;
}
if (!page.UrlAlias.IsNullOrWhiteSpace())
{
alias = page.UrlAlias;
}
else if (page.PageTypeAlias == Options.Pages.Root)
{
return String.Empty;
}
else if (!page.Alias.IsNullOrWhiteSpace())
{
alias = page.Alias;
}
else
{
alias = page.Name;
}
return Safenames.Alias(alias).Trim().Trim(PATH_SEPARATOR);
}
}
public interface IPageUrlBuilder
{
/// <summary>
/// Get URL for a page
/// </summary>
string GetUrl(Page page, IEnumerable<Page> parents);
/// <summary>
/// Get the part of the URL (by querying UrlAlias and Alias) for this page
/// </summary>
string GetUrlPart(Page page);
}
}