git.stevedylan.dev

packages/cli/src/lib/atproto.ts 17.9 K raw

import { Agent, AtpAgent } from "@atproto/api";
import * as mimeTypes from "mime-types";
import * as fs from "node:fs/promises";
import * as path from "node:path";
import { stripMarkdownForText } from "./markdown";
import { getOAuthClient } from "./oauth-client";
import type {
	BlobObject,
	BlogPost,
	Credentials,
	PublicationRecord,
	PublisherConfig,
	StrongRef,
} from "./types";
import { isAppPasswordCredentials, isOAuthCredentials } from "./types";

/**
 * Type guard to check if a record value is a DocumentRecord
 */
function isDocumentRecord(value: unknown): value is DocumentRecord {
	if (!value || typeof value !== "object") return false;
	const v = value as Record<string, unknown>;
	return (
		v.$type === "site.standard.document" &&
		typeof v.title === "string" &&
		typeof v.site === "string" &&
		typeof v.path === "string" &&
		typeof v.textContent === "string" &&
		typeof v.publishedAt === "string"
	);
}

async function fileExists(filePath: string): Promise<boolean> {
	try {
		await fs.access(filePath);
		return true;
	} catch {
		return false;
	}
}

/**
 * Resolve a handle to a DID
 */
export async function resolveHandleToDid(handle: string): Promise<string> {
	if (handle.startsWith("did:")) {
		return handle;
	}

	// Try to resolve handle via Bluesky API
	const resolveUrl = `https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=${encodeURIComponent(handle)}`;
	const resolveResponse = await fetch(resolveUrl);
	if (!resolveResponse.ok) {
		throw new Error("Could not resolve handle");
	}
	const resolveData = (await resolveResponse.json()) as { did: string };
	return resolveData.did;
}

export async function resolveHandleToPDS(handle: string): Promise<string> {
	// First, resolve the handle to a DID
	const did = await resolveHandleToDid(handle);

	// Now resolve the DID to get the PDS URL from the DID document
	let pdsUrl: string | undefined;

	if (did.startsWith("did:plc:")) {
		// Fetch DID document from plc.directory
		const didDocUrl = `https://plc.directory/${did}`;
		const didDocResponse = await fetch(didDocUrl);
		if (!didDocResponse.ok) {
			throw new Error("Could not fetch DID document");
		}
		const didDoc = (await didDocResponse.json()) as {
			service?: Array<{ id: string; type: string; serviceEndpoint: string }>;
		};

		// Find the PDS service endpoint
		const pdsService = didDoc.service?.find(
			(s) => s.id === "#atproto_pds" || s.type === "AtprotoPersonalDataServer",
		);
		pdsUrl = pdsService?.serviceEndpoint;
	} else if (did.startsWith("did:web:")) {
		// For did:web, fetch the DID document from the domain
		const domain = did.replace("did:web:", "");
		const didDocUrl = `https://${domain}/.well-known/did.json`;
		const didDocResponse = await fetch(didDocUrl);
		if (!didDocResponse.ok) {
			throw new Error("Could not fetch DID document");
		}
		const didDoc = (await didDocResponse.json()) as {
			service?: Array<{ id: string; type: string; serviceEndpoint: string }>;
		};

		const pdsService = didDoc.service?.find(
			(s) => s.id === "#atproto_pds" || s.type === "AtprotoPersonalDataServer",
		);
		pdsUrl = pdsService?.serviceEndpoint;
	}

	if (!pdsUrl) {
		throw new Error("Could not find PDS URL for user");
	}

	return pdsUrl;
}

export interface CreatePublicationOptions {
	url: string;
	name: string;
	description?: string;
	iconPath?: string;
	showInDiscover?: boolean;
}

export async function createAgent(credentials: Credentials): Promise<Agent> {
	if (isOAuthCredentials(credentials)) {
		// OAuth flow - restore session from stored tokens
		const client = await getOAuthClient();
		try {
			const oauthSession = await client.restore(credentials.did);
			// Wrap the OAuth session in an Agent which provides the atproto API
			return new Agent(oauthSession);
		} catch (error) {
			if (error instanceof Error) {
				// Check for common OAuth errors
				if (
					error.message.includes("expired") ||
					error.message.includes("revoked")
				) {
					throw new Error(
						`OAuth session expired or revoked. Please run 'sequoia login' to re-authenticate.`,
					);
				}
			}
			throw error;
		}
	}

	// App password flow
	if (!isAppPasswordCredentials(credentials)) {
		throw new Error("Invalid credential type");
	}
	const agent = new AtpAgent({ service: credentials.pdsUrl });

	await agent.login({
		identifier: credentials.identifier,
		password: credentials.password,
	});

	return agent;
}

export async function uploadImage(
	agent: Agent,
	imagePath: string,
): Promise<BlobObject | undefined> {
	if (!(await fileExists(imagePath))) {
		return undefined;
	}

	try {
		const imageBuffer = await fs.readFile(imagePath);
		const mimeType = mimeTypes.lookup(imagePath) || "application/octet-stream";

		const response = await agent.com.atproto.repo.uploadBlob(
			new Uint8Array(imageBuffer),
			{
				encoding: mimeType,
			},
		);

		return {
			$type: "blob",
			ref: {
				$link: response.data.blob.ref.toString(),
			},
			mimeType,
			size: imageBuffer.byteLength,
		};
	} catch (error) {
		console.error(`Error uploading image ${imagePath}:`, error);
		return undefined;
	}
}

export async function resolveImagePath(
	ogImage: string,
	imagesDir: string | undefined,
	contentDir: string,
): Promise<string | null> {
	// Try multiple resolution strategies
	const filename = path.basename(ogImage);

	// 1. If imagesDir is specified, look there
	if (imagesDir) {
		const imagePath = path.join(imagesDir, filename);
		if (await fileExists(imagePath)) {
			const stat = await fs.stat(imagePath);
			if (stat.size > 0) {
				return imagePath;
			}
		}
	}

	// 2. Try the ogImage path directly (if it's absolute)
	if (path.isAbsolute(ogImage)) {
		return ogImage;
	}

	// 3. Try relative to content directory
	const contentRelative = path.join(contentDir, ogImage);
	if (await fileExists(contentRelative)) {
		const stat = await fs.stat(contentRelative);
		if (stat.size > 0) {
			return contentRelative;
		}
	}

	return null;
}

export async function createDocument(
	agent: Agent,
	post: BlogPost,
	config: PublisherConfig,
	coverImage?: BlobObject,
): Promise<string> {
	const pathPrefix = config.pathPrefix || "/posts";
	const postPath = `${pathPrefix}/${post.slug}`;
	const publishDate = new Date(post.frontmatter.publishDate);

	// Determine textContent: use configured field from frontmatter, or fallback to markdown body
	let textContent: string;
	if (
		config.textContentField &&
		post.rawFrontmatter?.[config.textContentField]
	) {
		textContent = String(post.rawFrontmatter[config.textContentField]);
	} else {
		textContent = stripMarkdownForText(post.content);
	}

	const record: Record<string, unknown> = {
		$type: "site.standard.document",
		title: post.frontmatter.title,
		site: config.publicationUri,
		path: postPath,
		textContent: textContent.slice(0, 10000),
		publishedAt: publishDate.toISOString(),
		canonicalUrl: `${config.siteUrl}${postPath}`,
	};

	if (post.frontmatter.description) {
		record.description = post.frontmatter.description;
	}

	if (coverImage) {
		record.coverImage = coverImage;
	}

	if (post.frontmatter.tags && post.frontmatter.tags.length > 0) {
		record.tags = post.frontmatter.tags;
	}

	const response = await agent.com.atproto.repo.createRecord({
		repo: agent.did!,
		collection: "site.standard.document",
		record,
	});

	return response.data.uri;
}

export async function updateDocument(
	agent: Agent,
	post: BlogPost,
	atUri: string,
	config: PublisherConfig,
	coverImage?: BlobObject,
): Promise<void> {
	// Parse the atUri to get the collection and rkey
	// Format: at://did:plc:xxx/collection/rkey
	const uriMatch = atUri.match(/^at:\/\/([^/]+)\/([^/]+)\/(.+)$/);
	if (!uriMatch) {
		throw new Error(`Invalid atUri format: ${atUri}`);
	}

	const [, , collection, rkey] = uriMatch;

	const pathPrefix = config.pathPrefix || "/posts";
	const postPath = `${pathPrefix}/${post.slug}`;
	const publishDate = new Date(post.frontmatter.publishDate);

	// Determine textContent: use configured field from frontmatter, or fallback to markdown body
	let textContent: string;
	if (
		config.textContentField &&
		post.rawFrontmatter?.[config.textContentField]
	) {
		textContent = String(post.rawFrontmatter[config.textContentField]);
	} else {
		textContent = stripMarkdownForText(post.content);
	}

	const record: Record<string, unknown> = {
		$type: "site.standard.document",
		title: post.frontmatter.title,
		site: config.publicationUri,
		path: postPath,
		textContent: textContent.slice(0, 10000),
		publishedAt: publishDate.toISOString(),
		canonicalUrl: `${config.siteUrl}${postPath}`,
	};

	if (post.frontmatter.description) {
		record.description = post.frontmatter.description;
	}

	if (coverImage) {
		record.coverImage = coverImage;
	}

	if (post.frontmatter.tags && post.frontmatter.tags.length > 0) {
		record.tags = post.frontmatter.tags;
	}

	await agent.com.atproto.repo.putRecord({
		repo: agent.did!,
		collection: collection!,
		rkey: rkey!,
		record,
	});
}

export function parseAtUri(
	atUri: string,
): { did: string; collection: string; rkey: string } | null {
	const match = atUri.match(/^at:\/\/([^/]+)\/([^/]+)\/(.+)$/);
	if (!match) return null;
	return {
		did: match[1]!,
		collection: match[2]!,
		rkey: match[3]!,
	};
}

export interface DocumentRecord {
	$type: "site.standard.document";
	title: string;
	site: string;
	path: string;
	textContent: string;
	publishedAt: string;
	canonicalUrl?: string;
	description?: string;
	coverImage?: BlobObject;
	tags?: string[];
	location?: string;
}

export interface ListDocumentsResult {
	uri: string;
	cid: string;
	value: DocumentRecord;
}

export async function listDocuments(
	agent: Agent,
	publicationUri?: string,
): Promise<ListDocumentsResult[]> {
	const documents: ListDocumentsResult[] = [];
	let cursor: string | undefined;

	do {
		const response = await agent.com.atproto.repo.listRecords({
			repo: agent.did!,
			collection: "site.standard.document",
			limit: 100,
			cursor,
		});

		for (const record of response.data.records) {
			if (!isDocumentRecord(record.value)) {
				continue;
			}

			// If publicationUri is specified, only include documents from that publication
			if (publicationUri && record.value.site !== publicationUri) {
				continue;
			}

			documents.push({
				uri: record.uri,
				cid: record.cid,
				value: record.value,
			});
		}

		cursor = response.data.cursor;
	} while (cursor);

	return documents;
}

export async function createPublication(
	agent: Agent,
	options: CreatePublicationOptions,
): Promise<string> {
	let icon: BlobObject | undefined;

	if (options.iconPath) {
		icon = await uploadImage(agent, options.iconPath);
	}

	const record: Record<string, unknown> = {
		$type: "site.standard.publication",
		url: options.url,
		name: options.name,
		createdAt: new Date().toISOString(),
	};

	if (options.description) {
		record.description = options.description;
	}

	if (icon) {
		record.icon = icon;
	}

	if (options.showInDiscover !== undefined) {
		record.preferences = {
			showInDiscover: options.showInDiscover,
		};
	}

	const response = await agent.com.atproto.repo.createRecord({
		repo: agent.did!,
		collection: "site.standard.publication",
		record,
	});

	return response.data.uri;
}

export interface GetPublicationResult {
	uri: string;
	cid: string;
	value: PublicationRecord;
}

export async function getPublication(
	agent: Agent,
	publicationUri: string,
): Promise<GetPublicationResult | null> {
	const parsed = parseAtUri(publicationUri);
	if (!parsed) {
		return null;
	}

	try {
		const response = await agent.com.atproto.repo.getRecord({
			repo: parsed.did,
			collection: parsed.collection,
			rkey: parsed.rkey,
		});

		return {
			uri: publicationUri,
			cid: response.data.cid!,
			value: response.data.value as unknown as PublicationRecord,
		};
	} catch {
		return null;
	}
}

export interface UpdatePublicationOptions {
	url?: string;
	name?: string;
	description?: string;
	iconPath?: string;
	showInDiscover?: boolean;
}

export async function updatePublication(
	agent: Agent,
	publicationUri: string,
	options: UpdatePublicationOptions,
	existingRecord: PublicationRecord,
): Promise<void> {
	const parsed = parseAtUri(publicationUri);
	if (!parsed) {
		throw new Error(`Invalid publication URI: ${publicationUri}`);
	}

	// Build updated record, preserving createdAt and $type
	const record: Record<string, unknown> = {
		$type: existingRecord.$type,
		url: options.url ?? existingRecord.url,
		name: options.name ?? existingRecord.name,
		createdAt: existingRecord.createdAt,
	};

	// Handle description - can be cleared with empty string
	if (options.description !== undefined) {
		if (options.description) {
			record.description = options.description;
		}
		// If empty string, don't include description (clears it)
	} else if (existingRecord.description) {
		record.description = existingRecord.description;
	}

	// Handle icon - upload new if provided, otherwise keep existing
	if (options.iconPath) {
		const icon = await uploadImage(agent, options.iconPath);
		if (icon) {
			record.icon = icon;
		}
	} else if (existingRecord.icon) {
		record.icon = existingRecord.icon;
	}

	// Handle preferences
	if (options.showInDiscover !== undefined) {
		record.preferences = {
			showInDiscover: options.showInDiscover,
		};
	} else if (existingRecord.preferences) {
		record.preferences = existingRecord.preferences;
	}

	await agent.com.atproto.repo.putRecord({
		repo: parsed.did,
		collection: parsed.collection,
		rkey: parsed.rkey,
		record,
	});
}

// --- Bluesky Post Creation ---

export interface CreateBlueskyPostOptions {
	title: string;
	description?: string;
	canonicalUrl: string;
	coverImage?: BlobObject;
	publishedAt: string; // Used as createdAt for the post
}

/**
 * Count graphemes in a string (for Bluesky's 300 grapheme limit)
 */
function countGraphemes(str: string): number {
	// Use Intl.Segmenter if available, otherwise fallback to spread operator
	if (typeof Intl !== "undefined" && Intl.Segmenter) {
		const segmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
		return [...segmenter.segment(str)].length;
	}
	return [...str].length;
}

/**
 * Truncate a string to a maximum number of graphemes
 */
function truncateToGraphemes(str: string, maxGraphemes: number): string {
	if (typeof Intl !== "undefined" && Intl.Segmenter) {
		const segmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
		const segments = [...segmenter.segment(str)];
		if (segments.length <= maxGraphemes) return str;
		return `${segments
			.slice(0, maxGraphemes - 3)
			.map((s) => s.segment)
			.join("")}...`;
	}
	// Fallback
	const chars = [...str];
	if (chars.length <= maxGraphemes) return str;
	return `${chars.slice(0, maxGraphemes - 3).join("")}...`;
}

/**
 * Create a Bluesky post with external link embed
 */
export async function createBlueskyPost(
	agent: Agent,
	options: CreateBlueskyPostOptions,
): Promise<StrongRef> {
	const { title, description, canonicalUrl, coverImage, publishedAt } = options;

	// Build post text: title + description + URL
	// Max 300 graphemes for Bluesky posts
	const MAX_GRAPHEMES = 300;

	let postText: string;
	const urlPart = `\n\n${canonicalUrl}`;
	const urlGraphemes = countGraphemes(urlPart);

	if (description) {
		// Try: title + description + URL
		const fullText = `${title}\n\n${description}${urlPart}`;
		if (countGraphemes(fullText) <= MAX_GRAPHEMES) {
			postText = fullText;
		} else {
			// Truncate description to fit
			const availableForDesc =
				MAX_GRAPHEMES -
				countGraphemes(title) -
				countGraphemes("\n\n") -
				urlGraphemes -
				countGraphemes("\n\n");
			if (availableForDesc > 10) {
				const truncatedDesc = truncateToGraphemes(
					description,
					availableForDesc,
				);
				postText = `${title}\n\n${truncatedDesc}${urlPart}`;
			} else {
				// Just title + URL
				postText = `${title}${urlPart}`;
			}
		}
	} else {
		// Just title + URL
		postText = `${title}${urlPart}`;
	}

	// Final truncation if still too long (shouldn't happen but safety check)
	if (countGraphemes(postText) > MAX_GRAPHEMES) {
		postText = truncateToGraphemes(postText, MAX_GRAPHEMES);
	}

	// Calculate byte indices for the URL facet
	const encoder = new TextEncoder();
	const urlStartInText = postText.lastIndexOf(canonicalUrl);
	const beforeUrl = postText.substring(0, urlStartInText);
	const byteStart = encoder.encode(beforeUrl).length;
	const byteEnd = byteStart + encoder.encode(canonicalUrl).length;

	// Build facets for the URL link
	const facets = [
		{
			index: {
				byteStart,
				byteEnd,
			},
			features: [
				{
					$type: "app.bsky.richtext.facet#link",
					uri: canonicalUrl,
				},
			],
		},
	];

	// Build external embed
	const embed: Record<string, unknown> = {
		$type: "app.bsky.embed.external",
		external: {
			uri: canonicalUrl,
			title: title.substring(0, 500), // Max 500 chars for title
			description: (description || "").substring(0, 1000), // Max 1000 chars for description
		},
	};

	// Add thumbnail if coverImage is available
	if (coverImage) {
		(embed.external as Record<string, unknown>).thumb = coverImage;
	}

	// Create the post record
	const record: Record<string, unknown> = {
		$type: "app.bsky.feed.post",
		text: postText,
		facets,
		embed,
		createdAt: new Date(publishedAt).toISOString(),
	};

	const response = await agent.com.atproto.repo.createRecord({
		repo: agent.did!,
		collection: "app.bsky.feed.post",
		record,
	});

	return {
		uri: response.data.uri,
		cid: response.data.cid,
	};
}

/**
 * Add bskyPostRef to an existing document record
 */
export async function addBskyPostRefToDocument(
	agent: Agent,
	documentAtUri: string,
	bskyPostRef: StrongRef,
): Promise<void> {
	const parsed = parseAtUri(documentAtUri);
	if (!parsed) {
		throw new Error(`Invalid document URI: ${documentAtUri}`);
	}

	// Fetch existing record
	const existingRecord = await agent.com.atproto.repo.getRecord({
		repo: parsed.did,
		collection: parsed.collection,
		rkey: parsed.rkey,
	});

	// Add bskyPostRef to the record
	const updatedRecord = {
		...(existingRecord.data.value as Record<string, unknown>),
		bskyPostRef,
	};

	// Update the record
	await agent.com.atproto.repo.putRecord({
		repo: parsed.did,
		collection: parsed.collection,
		rkey: parsed.rkey,
		record: updatedRecord,
	});
}

1	import { Agent, AtpAgent } from "@atproto/api";
2	import * as mimeTypes from "mime-types";
3	import * as fs from "node:fs/promises";
4	import * as path from "node:path";
5	import { stripMarkdownForText } from "./markdown";
6	import { getOAuthClient } from "./oauth-client";
7	import type {
8	BlobObject,
9	BlogPost,
10	Credentials,
11	PublicationRecord,
12	PublisherConfig,
13	StrongRef,
14	} from "./types";
15	import { isAppPasswordCredentials, isOAuthCredentials } from "./types";
16
17	/**
18	* Type guard to check if a record value is a DocumentRecord
19	*/
20	function isDocumentRecord(value: unknown): value is DocumentRecord {
21	if (!value \|\| typeof value !== "object") return false;
22	const v = value as Record<string, unknown>;
23	return (
24	v.$type === "site.standard.document" &&
25	typeof v.title === "string" &&
26	typeof v.site === "string" &&
27	typeof v.path === "string" &&
28	typeof v.textContent === "string" &&
29	typeof v.publishedAt === "string"
30	);
31	}
32
33	async function fileExists(filePath: string): Promise<boolean> {
34	try {
35	await fs.access(filePath);
36	return true;
37	} catch {
38	return false;
39	}
40	}
41
42	/**
43	* Resolve a handle to a DID
44	*/
45	export async function resolveHandleToDid(handle: string): Promise<string> {
46	if (handle.startsWith("did:")) {
47	return handle;
48	}
49
50	// Try to resolve handle via Bluesky API
51	const resolveUrl = `https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=${encodeURIComponent(handle)}`;
52	const resolveResponse = await fetch(resolveUrl);
53	if (!resolveResponse.ok) {
54	throw new Error("Could not resolve handle");
55	}
56	const resolveData = (await resolveResponse.json()) as { did: string };
57	return resolveData.did;
58	}
59
60	export async function resolveHandleToPDS(handle: string): Promise<string> {
61	// First, resolve the handle to a DID
62	const did = await resolveHandleToDid(handle);
63
64	// Now resolve the DID to get the PDS URL from the DID document
65	let pdsUrl: string \| undefined;
66
67	if (did.startsWith("did:plc:")) {
68	// Fetch DID document from plc.directory
69	const didDocUrl = `https://plc.directory/${did}`;
70	const didDocResponse = await fetch(didDocUrl);
71	if (!didDocResponse.ok) {
72	throw new Error("Could not fetch DID document");
73	}
74	const didDoc = (await didDocResponse.json()) as {
75	service?: Array<{ id: string; type: string; serviceEndpoint: string }>;
76	};
77
78	// Find the PDS service endpoint
79	const pdsService = didDoc.service?.find(
80	(s) => s.id === "#atproto_pds" \|\| s.type === "AtprotoPersonalDataServer",
81	);
82	pdsUrl = pdsService?.serviceEndpoint;
83	} else if (did.startsWith("did:web:")) {
84	// For did:web, fetch the DID document from the domain
85	const domain = did.replace("did:web:", "");
86	const didDocUrl = `https://${domain}/.well-known/did.json`;
87	const didDocResponse = await fetch(didDocUrl);
88	if (!didDocResponse.ok) {
89	throw new Error("Could not fetch DID document");
90	}
91	const didDoc = (await didDocResponse.json()) as {
92	service?: Array<{ id: string; type: string; serviceEndpoint: string }>;
93	};
94
95	const pdsService = didDoc.service?.find(
96	(s) => s.id === "#atproto_pds" \|\| s.type === "AtprotoPersonalDataServer",
97	);
98	pdsUrl = pdsService?.serviceEndpoint;
99	}
100
101	if (!pdsUrl) {
102	throw new Error("Could not find PDS URL for user");
103	}
104
105	return pdsUrl;
106	}
107
108	export interface CreatePublicationOptions {
109	url: string;
110	name: string;
111	description?: string;
112	iconPath?: string;
113	showInDiscover?: boolean;
114	}
115
116	export async function createAgent(credentials: Credentials): Promise<Agent> {
117	if (isOAuthCredentials(credentials)) {
118	// OAuth flow - restore session from stored tokens
119	const client = await getOAuthClient();
120	try {
121	const oauthSession = await client.restore(credentials.did);
122	// Wrap the OAuth session in an Agent which provides the atproto API
123	return new Agent(oauthSession);
124	} catch (error) {
125	if (error instanceof Error) {
126	// Check for common OAuth errors
127	if (
128	error.message.includes("expired") \|\|
129	error.message.includes("revoked")
130	) {
131	throw new Error(
132	`OAuth session expired or revoked. Please run 'sequoia login' to re-authenticate.`,
133	);
134	}
135	}
136	throw error;
137	}
138	}
139
140	// App password flow
141	if (!isAppPasswordCredentials(credentials)) {
142	throw new Error("Invalid credential type");
143	}
144	const agent = new AtpAgent({ service: credentials.pdsUrl });
145
146	await agent.login({
147	identifier: credentials.identifier,
148	password: credentials.password,
149	});
150
151	return agent;
152	}
153
154	export async function uploadImage(
155	agent: Agent,
156	imagePath: string,
157	): Promise<BlobObject \| undefined> {
158	if (!(await fileExists(imagePath))) {
159	return undefined;
160	}
161
162	try {
163	const imageBuffer = await fs.readFile(imagePath);
164	const mimeType = mimeTypes.lookup(imagePath) \|\| "application/octet-stream";
165
166	const response = await agent.com.atproto.repo.uploadBlob(
167	new Uint8Array(imageBuffer),
168	{
169	encoding: mimeType,
170	},
171	);
172
173	return {
174	$type: "blob",
175	ref: {
176	$link: response.data.blob.ref.toString(),
177	},
178	mimeType,
179	size: imageBuffer.byteLength,
180	};
181	} catch (error) {
182	console.error(`Error uploading image ${imagePath}:`, error);
183	return undefined;
184	}
185	}
186
187	export async function resolveImagePath(
188	ogImage: string,
189	imagesDir: string \| undefined,
190	contentDir: string,
191	): Promise<string \| null> {
192	// Try multiple resolution strategies
193	const filename = path.basename(ogImage);
194
195	// 1. If imagesDir is specified, look there
196	if (imagesDir) {
197	const imagePath = path.join(imagesDir, filename);
198	if (await fileExists(imagePath)) {
199	const stat = await fs.stat(imagePath);
200	if (stat.size > 0) {
201	return imagePath;
202	}
203	}
204	}
205
206	// 2. Try the ogImage path directly (if it's absolute)
207	if (path.isAbsolute(ogImage)) {
208	return ogImage;
209	}
210
211	// 3. Try relative to content directory
212	const contentRelative = path.join(contentDir, ogImage);
213	if (await fileExists(contentRelative)) {
214	const stat = await fs.stat(contentRelative);
215	if (stat.size > 0) {
216	return contentRelative;
217	}
218	}
219
220	return null;
221	}
222
223	export async function createDocument(
224	agent: Agent,
225	post: BlogPost,
226	config: PublisherConfig,
227	coverImage?: BlobObject,
228	): Promise<string> {
229	const pathPrefix = config.pathPrefix \|\| "/posts";
230	const postPath = `${pathPrefix}/${post.slug}`;
231	const publishDate = new Date(post.frontmatter.publishDate);
232
233	// Determine textContent: use configured field from frontmatter, or fallback to markdown body
234	let textContent: string;
235	if (
236	config.textContentField &&
237	post.rawFrontmatter?.[config.textContentField]
238	) {
239	textContent = String(post.rawFrontmatter[config.textContentField]);
240	} else {
241	textContent = stripMarkdownForText(post.content);
242	}
243
244	const record: Record<string, unknown> = {
245	$type: "site.standard.document",
246	title: post.frontmatter.title,
247	site: config.publicationUri,
248	path: postPath,
249	textContent: textContent.slice(0, 10000),
250	publishedAt: publishDate.toISOString(),
251	canonicalUrl: `${config.siteUrl}${postPath}`,
252	};
253
254	if (post.frontmatter.description) {
255	record.description = post.frontmatter.description;
256	}
257
258	if (coverImage) {
259	record.coverImage = coverImage;
260	}
261
262	if (post.frontmatter.tags && post.frontmatter.tags.length > 0) {
263	record.tags = post.frontmatter.tags;
264	}
265
266	const response = await agent.com.atproto.repo.createRecord({
267	repo: agent.did!,
268	collection: "site.standard.document",
269	record,
270	});
271
272	return response.data.uri;
273	}
274
275	export async function updateDocument(
276	agent: Agent,
277	post: BlogPost,
278	atUri: string,
279	config: PublisherConfig,
280	coverImage?: BlobObject,
281	): Promise<void> {
282	// Parse the atUri to get the collection and rkey
283	// Format: at://did:plc:xxx/collection/rkey
284	const uriMatch = atUri.match(/^at:\/\/([^/]+)\/([^/]+)\/(.+)$/);
285	if (!uriMatch) {
286	throw new Error(`Invalid atUri format: ${atUri}`);
287	}
288
289	const [, , collection, rkey] = uriMatch;
290
291	const pathPrefix = config.pathPrefix \|\| "/posts";
292	const postPath = `${pathPrefix}/${post.slug}`;
293	const publishDate = new Date(post.frontmatter.publishDate);
294
295	// Determine textContent: use configured field from frontmatter, or fallback to markdown body
296	let textContent: string;
297	if (
298	config.textContentField &&
299	post.rawFrontmatter?.[config.textContentField]
300	) {
301	textContent = String(post.rawFrontmatter[config.textContentField]);
302	} else {
303	textContent = stripMarkdownForText(post.content);
304	}
305
306	const record: Record<string, unknown> = {
307	$type: "site.standard.document",
308	title: post.frontmatter.title,
309	site: config.publicationUri,
310	path: postPath,
311	textContent: textContent.slice(0, 10000),
312	publishedAt: publishDate.toISOString(),
313	canonicalUrl: `${config.siteUrl}${postPath}`,
314	};
315
316	if (post.frontmatter.description) {
317	record.description = post.frontmatter.description;
318	}
319
320	if (coverImage) {
321	record.coverImage = coverImage;
322	}
323
324	if (post.frontmatter.tags && post.frontmatter.tags.length > 0) {
325	record.tags = post.frontmatter.tags;
326	}
327
328	await agent.com.atproto.repo.putRecord({
329	repo: agent.did!,
330	collection: collection!,
331	rkey: rkey!,
332	record,
333	});
334	}
335
336	export function parseAtUri(
337	atUri: string,
338	): { did: string; collection: string; rkey: string } \| null {
339	const match = atUri.match(/^at:\/\/([^/]+)\/([^/]+)\/(.+)$/);
340	if (!match) return null;
341	return {
342	did: match[1]!,
343	collection: match[2]!,
344	rkey: match[3]!,
345	};
346	}
347
348	export interface DocumentRecord {
349	$type: "site.standard.document";
350	title: string;
351	site: string;
352	path: string;
353	textContent: string;
354	publishedAt: string;
355	canonicalUrl?: string;
356	description?: string;
357	coverImage?: BlobObject;
358	tags?: string[];
359	location?: string;
360	}
361
362	export interface ListDocumentsResult {
363	uri: string;
364	cid: string;
365	value: DocumentRecord;
366	}
367
368	export async function listDocuments(
369	agent: Agent,
370	publicationUri?: string,
371	): Promise<ListDocumentsResult[]> {
372	const documents: ListDocumentsResult[] = [];
373	let cursor: string \| undefined;
374
375	do {
376	const response = await agent.com.atproto.repo.listRecords({
377	repo: agent.did!,
378	collection: "site.standard.document",
379	limit: 100,
380	cursor,
381	});
382
383	for (const record of response.data.records) {
384	if (!isDocumentRecord(record.value)) {
385	continue;
386	}
387
388	// If publicationUri is specified, only include documents from that publication
389	if (publicationUri && record.value.site !== publicationUri) {
390	continue;
391	}
392
393	documents.push({
394	uri: record.uri,
395	cid: record.cid,
396	value: record.value,
397	});
398	}
399
400	cursor = response.data.cursor;
401	} while (cursor);
402
403	return documents;
404	}
405
406	export async function createPublication(
407	agent: Agent,
408	options: CreatePublicationOptions,
409	): Promise<string> {
410	let icon: BlobObject \| undefined;
411
412	if (options.iconPath) {
413	icon = await uploadImage(agent, options.iconPath);
414	}
415
416	const record: Record<string, unknown> = {
417	$type: "site.standard.publication",
418	url: options.url,
419	name: options.name,
420	createdAt: new Date().toISOString(),
421	};
422
423	if (options.description) {
424	record.description = options.description;
425	}
426
427	if (icon) {
428	record.icon = icon;
429	}
430
431	if (options.showInDiscover !== undefined) {
432	record.preferences = {
433	showInDiscover: options.showInDiscover,
434	};
435	}
436
437	const response = await agent.com.atproto.repo.createRecord({
438	repo: agent.did!,
439	collection: "site.standard.publication",
440	record,
441	});
442
443	return response.data.uri;
444	}
445
446	export interface GetPublicationResult {
447	uri: string;
448	cid: string;
449	value: PublicationRecord;
450	}
451
452	export async function getPublication(
453	agent: Agent,
454	publicationUri: string,
455	): Promise<GetPublicationResult \| null> {
456	const parsed = parseAtUri(publicationUri);
457	if (!parsed) {
458	return null;
459	}
460
461	try {
462	const response = await agent.com.atproto.repo.getRecord({
463	repo: parsed.did,
464	collection: parsed.collection,
465	rkey: parsed.rkey,
466	});
467
468	return {
469	uri: publicationUri,
470	cid: response.data.cid!,
471	value: response.data.value as unknown as PublicationRecord,
472	};
473	} catch {
474	return null;
475	}
476	}
477
478	export interface UpdatePublicationOptions {
479	url?: string;
480	name?: string;
481	description?: string;
482	iconPath?: string;
483	showInDiscover?: boolean;
484	}
485
486	export async function updatePublication(
487	agent: Agent,
488	publicationUri: string,
489	options: UpdatePublicationOptions,
490	existingRecord: PublicationRecord,
491	): Promise<void> {
492	const parsed = parseAtUri(publicationUri);
493	if (!parsed) {
494	throw new Error(`Invalid publication URI: ${publicationUri}`);
495	}
496
497	// Build updated record, preserving createdAt and $type
498	const record: Record<string, unknown> = {
499	$type: existingRecord.$type,
500	url: options.url ?? existingRecord.url,
501	name: options.name ?? existingRecord.name,
502	createdAt: existingRecord.createdAt,
503	};
504
505	// Handle description - can be cleared with empty string
506	if (options.description !== undefined) {
507	if (options.description) {
508	record.description = options.description;
509	}
510	// If empty string, don't include description (clears it)
511	} else if (existingRecord.description) {
512	record.description = existingRecord.description;
513	}
514
515	// Handle icon - upload new if provided, otherwise keep existing
516	if (options.iconPath) {
517	const icon = await uploadImage(agent, options.iconPath);
518	if (icon) {
519	record.icon = icon;
520	}
521	} else if (existingRecord.icon) {
522	record.icon = existingRecord.icon;
523	}
524
525	// Handle preferences
526	if (options.showInDiscover !== undefined) {
527	record.preferences = {
528	showInDiscover: options.showInDiscover,
529	};
530	} else if (existingRecord.preferences) {
531	record.preferences = existingRecord.preferences;
532	}
533
534	await agent.com.atproto.repo.putRecord({
535	repo: parsed.did,
536	collection: parsed.collection,
537	rkey: parsed.rkey,
538	record,
539	});
540	}
541
542	// --- Bluesky Post Creation ---
543
544	export interface CreateBlueskyPostOptions {
545	title: string;
546	description?: string;
547	canonicalUrl: string;
548	coverImage?: BlobObject;
549	publishedAt: string; // Used as createdAt for the post
550	}
551
552	/**
553	* Count graphemes in a string (for Bluesky's 300 grapheme limit)
554	*/
555	function countGraphemes(str: string): number {
556	// Use Intl.Segmenter if available, otherwise fallback to spread operator
557	if (typeof Intl !== "undefined" && Intl.Segmenter) {
558	const segmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
559	return [...segmenter.segment(str)].length;
560	}
561	return [...str].length;
562	}
563
564	/**
565	* Truncate a string to a maximum number of graphemes
566	*/
567	function truncateToGraphemes(str: string, maxGraphemes: number): string {
568	if (typeof Intl !== "undefined" && Intl.Segmenter) {
569	const segmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
570	const segments = [...segmenter.segment(str)];
571	if (segments.length <= maxGraphemes) return str;
572	return `${segments
573	.slice(0, maxGraphemes - 3)
574	.map((s) => s.segment)
575	.join("")}...`;
576	}
577	// Fallback
578	const chars = [...str];
579	if (chars.length <= maxGraphemes) return str;
580	return `${chars.slice(0, maxGraphemes - 3).join("")}...`;
581	}
582
583	/**
584	* Create a Bluesky post with external link embed
585	*/
586	export async function createBlueskyPost(
587	agent: Agent,
588	options: CreateBlueskyPostOptions,
589	): Promise<StrongRef> {
590	const { title, description, canonicalUrl, coverImage, publishedAt } = options;
591
592	// Build post text: title + description + URL
593	// Max 300 graphemes for Bluesky posts
594	const MAX_GRAPHEMES = 300;
595
596	let postText: string;
597	const urlPart = `\n\n${canonicalUrl}`;
598	const urlGraphemes = countGraphemes(urlPart);
599
600	if (description) {
601	// Try: title + description + URL
602	const fullText = `${title}\n\n${description}${urlPart}`;
603	if (countGraphemes(fullText) <= MAX_GRAPHEMES) {
604	postText = fullText;
605	} else {
606	// Truncate description to fit
607	const availableForDesc =
608	MAX_GRAPHEMES -
609	countGraphemes(title) -
610	countGraphemes("\n\n") -
611	urlGraphemes -
612	countGraphemes("\n\n");
613	if (availableForDesc > 10) {
614	const truncatedDesc = truncateToGraphemes(
615	description,
616	availableForDesc,
617	);
618	postText = `${title}\n\n${truncatedDesc}${urlPart}`;
619	} else {
620	// Just title + URL
621	postText = `${title}${urlPart}`;
622	}
623	}
624	} else {
625	// Just title + URL
626	postText = `${title}${urlPart}`;
627	}
628
629	// Final truncation if still too long (shouldn't happen but safety check)
630	if (countGraphemes(postText) > MAX_GRAPHEMES) {
631	postText = truncateToGraphemes(postText, MAX_GRAPHEMES);
632	}
633
634	// Calculate byte indices for the URL facet
635	const encoder = new TextEncoder();
636	const urlStartInText = postText.lastIndexOf(canonicalUrl);
637	const beforeUrl = postText.substring(0, urlStartInText);
638	const byteStart = encoder.encode(beforeUrl).length;
639	const byteEnd = byteStart + encoder.encode(canonicalUrl).length;
640
641	// Build facets for the URL link
642	const facets = [
643	{
644	index: {
645	byteStart,
646	byteEnd,
647	},
648	features: [
649	{
650	$type: "app.bsky.richtext.facet#link",
651	uri: canonicalUrl,
652	},
653	],
654	},
655	];
656
657	// Build external embed
658	const embed: Record<string, unknown> = {
659	$type: "app.bsky.embed.external",
660	external: {
661	uri: canonicalUrl,
662	title: title.substring(0, 500), // Max 500 chars for title
663	description: (description \|\| "").substring(0, 1000), // Max 1000 chars for description
664	},
665	};
666
667	// Add thumbnail if coverImage is available
668	if (coverImage) {
669	(embed.external as Record<string, unknown>).thumb = coverImage;
670	}
671
672	// Create the post record
673	const record: Record<string, unknown> = {
674	$type: "app.bsky.feed.post",
675	text: postText,
676	facets,
677	embed,
678	createdAt: new Date(publishedAt).toISOString(),
679	};
680
681	const response = await agent.com.atproto.repo.createRecord({
682	repo: agent.did!,
683	collection: "app.bsky.feed.post",
684	record,
685	});
686
687	return {
688	uri: response.data.uri,
689	cid: response.data.cid,
690	};
691	}
692
693	/**
694	* Add bskyPostRef to an existing document record
695	*/
696	export async function addBskyPostRefToDocument(
697	agent: Agent,
698	documentAtUri: string,
699	bskyPostRef: StrongRef,
700	): Promise<void> {
701	const parsed = parseAtUri(documentAtUri);
702	if (!parsed) {
703	throw new Error(`Invalid document URI: ${documentAtUri}`);
704	}
705
706	// Fetch existing record
707	const existingRecord = await agent.com.atproto.repo.getRecord({
708	repo: parsed.did,
709	collection: parsed.collection,
710	rkey: parsed.rkey,
711	});
712
713	// Add bskyPostRef to the record
714	const updatedRecord = {
715	...(existingRecord.data.value as Record<string, unknown>),
716	bskyPostRef,
717	};
718
719	// Update the record
720	await agent.com.atproto.repo.putRecord({
721	repo: parsed.did,
722	collection: parsed.collection,
723	rkey: parsed.rkey,
724	record: updatedRecord,
725	});
726	}