import { post } from "./routes";
import { postBySlug } from "./resources/post";
const TABS = ["content", "comments", "related"] as const;
type Tab = (typeof TABS)[number];
const POSTS: Record<
string,
{ title: string; body: string; comments: string[] }
> = {
"hello-world": {
title: "Hello World",
body: "An introduction to the typed router API. Route params and search params can be validated with Zod or coerced with lightweight parse functions.",
comments: [
"Clear intro — parse is much lighter than Zod for simple cases.",
"The fallback in the tab parser is a nice safety net.",
],
},
"react-server": {
title: "React Server Components",
body: "Server Components run on the server, enabling async data fetching at the component level with no client-side waterfalls.",
comments: [
"Finally a clean data-fetching model!",
"How does this interact with Suspense boundaries?",
],
},
"typed-routes": {
title: "Typed Routes",
body: "createRoute binds path, validate, parse, and a typed Link into one descriptor. Import the same descriptor in server and client components.",
comments: [
"The typed .Link alone is worth using this.",
"Love that useParams works in RSC too.",
],
},
};
function highlightQuery(text: string, q: string) {
if (!q) return <>{text}</>;
const escaped = q.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
const parts = text.split(new RegExp(`(${escaped})`, "i"));
return (
<>
{parts.map((part, i) =>
part.toLowerCase() === q.toLowerCase() ? (
<mark key={i} style={{ background: "#ffe066", padding: "0 1px" }}>
{part}
</mark>
) : (
part
)
)}
</>
);
}
export default function PostPage() {
// post.useParams() applies the lightweight `parse` defined in routes.ts.
// post.useSearchParams() applies the parse functions for `tab` and `q`:
// tab — validated against an allowlist; unknown values fall back to "content"
// q — passed through as a string for content highlighting
const params = post.useParams();
const search = post.useSearchParams();
if (!params) return <p style={{ color: "red" }}>No match</p>;
// postBySlug.use() — suspense-integrated resource fetch.
// The loader was bound in resources/post.ts and prefetched by the
// route-resource binding in router.tsx.
const postData = postBySlug.use({ slug: params.slug });
const article = POSTS[params.slug];
const tab: Tab = (search?.tab as Tab | undefined) ?? "content";
const q = (search?.q as string | undefined) ?? "";
return (
<div>
<h2 data-testid="post-title">
{postData?.title ?? article?.title ?? params.slug}
</h2>
<p
data-testid="post-excerpt"
style={{ color: "gray", fontSize: "0.9rem" }}
>
{postData?.excerpt}
</p>
<p>
Uses <code>parse</code> with a validation function: <code>tab</code>{" "}
falls back to <code>"content"</code> for unknown values; <code>q</code>{" "}
highlights matching text in the active tab.
</p>
{/* Tab navigation — post.Link keeps params + updates search */}
<div style={{ display: "flex", gap: "0.5rem", marginBottom: "1rem" }}>
{TABS.map((t) => (
<post.Link
key={t}
params={{ slug: params.slug }}
search={{ tab: t, q: q || undefined }}
style={{
fontWeight: tab === t ? "bold" : "normal",
textDecoration: tab === t ? "underline" : "none",
color: "blue",
}}
>
{t}
</post.Link>
))}
</div>
{/* Tab content with optional query highlight */}
{tab === "content" && article && (
<p style={{ maxWidth: 540 }}>{highlightQuery(article.body, q)}</p>
)}
{tab === "comments" && article && (
<ul>
{article.comments.map((c, i) => (
<li key={i}>{highlightQuery(c, q)}</li>
))}
</ul>
)}
{tab === "related" && (
<ul>
{Object.entries(POSTS)
.filter(([s]) => s !== params.slug)
.map(([s, p]) => (
<li key={s}>
<post.Link params={{ slug: s }} style={{ color: "blue" }}>
{p.title}
</post.Link>
</li>
))}
</ul>
)}
{/* Highlight presets — show q being passed through as-is */}
<div style={{ marginTop: "1rem" }}>
<span style={{ marginRight: "0.5rem", color: "gray" }}>Highlight:</span>
{["parse", "server", "typed"].map((term) => (
<post.Link
key={term}
params={{ slug: params.slug }}
search={{ tab, q: term }}
style={{
marginRight: "0.5rem",
color: q === term ? "black" : "blue",
fontWeight: q === term ? "bold" : "normal",
}}
>
{term}
</post.Link>
))}
{q && (
<post.Link
params={{ slug: params.slug }}
search={{ tab }}
style={{ color: "gray" }}
>
clear
</post.Link>
)}
</div>
<h3 style={{ marginTop: "1.5rem" }}>Try these links:</h3>
<div style={{ display: "flex", gap: "0.5rem", flexWrap: "wrap" }}>
<post.Link
params={{ slug: "hello-world" }}
search={{ tab: "content" }}
style={{ color: "blue" }}
>
hello-world / content
</post.Link>
<post.Link
params={{ slug: "react-server" }}
search={{ tab: "comments" }}
style={{ color: "blue" }}
>
react-server / comments
</post.Link>
<post.Link
params={{ slug: "typed-routes" }}
search={{ tab: "related" }}
style={{ color: "blue" }}
>
typed-routes / related
</post.Link>
{/* Demonstrates the parse fallback — "oops" is not in the allowlist */}
<post.Link
params={{ slug: "hello-world" }}
search={{ tab: "oops" as never }}
style={{ color: "gray" }}
>
?tab=oops → falls back to "content"
</post.Link>
</div>
<p style={{ color: "gray", fontSize: "0.85rem", marginTop: "1rem" }}>
slug=<strong>{params.slug}</strong>, tab=<strong>{tab}</strong>
{q && (
<>
, q=<strong>{q}</strong>
</>