43 lines
1.3 KiB
TypeScript
43 lines
1.3 KiB
TypeScript
import { db } from "../model/db.ts";
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import { APIErrorCode, APIException } from "../model/interfaces.ts";
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export function createAttachment(id: string, mime: string): void {
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db.prepare(
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"INSERT INTO attachments (id, mime, created_at) VALUES (?, ?, ?)",
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).run(id, mime, new Date().toISOString());
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}
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export function getAttachment(attachmentId: string): { mime: string } {
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const row = db.prepare(
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"SELECT mime FROM attachments WHERE id = ?",
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).get(attachmentId) as { mime: string } | undefined;
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if (!row) {
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throw new APIException(
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APIErrorCode.NOT_FOUND,
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404,
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"Attachment not found",
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);
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}
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return { mime: row.mime };
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}
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// UUID pattern used to extract attachment IDs from markdown/text bodies.
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const ATTACHMENT_RE =
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/\/api\/attachments\/([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})/g;
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/**
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* Parse `text` for attachment URLs and bind any unowned attachments to
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* `resourceId`. Only updates rows where resource_id IS NULL so a user cannot
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* claim attachments that already belong to another resource.
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*/
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export function linkAttachments(text: string, resourceId: string): void {
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const ids = [...text.matchAll(ATTACHMENT_RE)].map((m) => m[1]);
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for (const id of ids) {
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db.prepare(
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"UPDATE attachments SET resource_id = ? WHERE id = ? AND resource_id IS NULL",
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).run(resourceId, id);
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}
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}
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