32 lines
1.4 KiB
C#
32 lines
1.4 KiB
C#
using Elternbeirat.Contracts;
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namespace Elternbeirat.Web.Features.Layout;
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/// <summary>
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/// Builds the header and footer navigation from the public pages. Every page
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/// carries a required <see cref="Page.Location"/> ("header" or "footer") and an
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/// <see cref="Page.Order"/>; this splits them into the two menus, each ordered.
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/// </summary>
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public static class NavBuilder
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{
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/// <summary>Header links, ordered, built from pages with location "header".</summary>
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public static IReadOnlyList<NavLinkItem> Header(IReadOnlyList<Page> pages) =>
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Build(pages, "header");
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/// <summary>Footer links, ordered, built from pages with location "footer".</summary>
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public static IReadOnlyList<NavLinkItem> Footer(IReadOnlyList<Page> pages) =>
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Build(pages, "footer");
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private static List<NavLinkItem> Build(IReadOnlyList<Page> pages, string location) =>
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[.. pages
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.Where(page => string.Equals(page.Location, location, StringComparison.Ordinal))
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.OrderBy(page => page.Order)
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.Select(page => new NavLinkItem(HrefFor(page.Slug), page.Title))];
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// The home page owns "/" (served by the Home component); every other slug is
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// reached at "/{slug}", where either a literal route or the catch-all content
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// page renders it.
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private static string HrefFor(string slug) =>
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string.Equals(slug, "home", StringComparison.Ordinal) ? "/" : $"/{slug}";
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}
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