*   - post-uri: Bluesky post as AT-URI (at://...) or bsky.app URL — skips PDS document lookup

/**

 * Normalise a user-supplied post reference to an AT-URI.

 * Accepts:

 *   - AT-URIs as-is:          at://did:plc:.../app.bsky.feed.post/rkey

 *   - bsky.app post URLs:     https://bsky.app/profile/<handle-or-did>/post/<rkey>

 * When the profile segment is already a DID no network request is made.

 * @param {string} uriOrUrl

 * @returns {Promise<string>} AT-URI

 */

async function resolvePostUri(uriOrUrl) {

	if (uriOrUrl.startsWith("at://")) return uriOrUrl;

	const match = uriOrUrl.match(

		/bsky\.app\/profile\/([^/?#]+)\/post\/([^/?#]+)/,

	);

	if (!match) throw new Error(`Cannot parse Bluesky URL: ${uriOrUrl}`);

	const [, handleOrDid, rkey] = match;

	let did = handleOrDid;

	if (!handleOrDid.startsWith("did:")) {

		const url = new URL(

			"https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle",

		);

		url.searchParams.set("handle", handleOrDid);

		const response = await fetch(url.toString());

		if (!response.ok)

			throw new Error(`Failed to resolve handle: ${response.status}`);

		did = (await response.json()).did;

	}

	return `at://${did}/app.bsky.feed.post/${rkey}`;

}

		return ["post-uri", "document-uri", "depth", "hide"];

		try {

			// Resolve the post URI — either directly from the attribute or via the

			// document record (which requires a PDS roundtrip)

			const rawPostUri = this.getAttribute("post-uri");

			let postUri = rawPostUri ? await resolvePostUri(rawPostUri) : null;

			if (!postUri) {

				const docUri = this.documentUri;

				if (!docUri) {

					this.state = { type: "no-document" };

					this.render();

					return;

				}

				const document = await getDocument(docUri);

				if (!document.bskyPostRef) {

					this.state = { type: "no-comments-enabled" };

					this.render();

					return;

				}

				postUri = document.bskyPostRef.uri;

			const postUrl = buildBskyAppUrl(postUri);

			const blackskyPostUrl = buildBlackskyAppUrl(postUri);

				getPostThread(postUri, this.depth),

				getQuotes(postUri),