90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
import { unified } from "npm:unified";
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import remarkParse from "npm:remark-parse";
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import remarkFrontmatter from "https://esm.sh/remark-frontmatter@4";
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import { parse } from "https://deno.land/std@0.194.0/yaml/mod.ts";
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import * as cache from "@lib/cache/documents.ts";
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const SILVERBULLET_SERVER = Deno.env.get("SILVERBULLET_SERVER");
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export type Document = {
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name: string;
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lastModified: number;
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contentType: string;
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size: number;
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perm: string;
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};
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export function parseFrontmatter(yaml: string) {
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return parse(yaml);
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}
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export async function getDocuments(): Promise<Document[]> {
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const cachedDocuments = await cache.getDocuments();
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if (cachedDocuments) return cachedDocuments;
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const headers = new Headers();
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headers.append("Accept", "application/json");
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const response = await fetch(SILVERBULLET_SERVER + "/index.json", {
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headers: headers,
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});
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const documents = await response.json();
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cache.setDocuments(documents);
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return documents;
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}
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export async function getDocument(name: string): Promise<string> {
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const cachedDocument = await cache.getDocument(name);
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if (cachedDocument) return cachedDocument;
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const response = await fetch(SILVERBULLET_SERVER + "/" + name);
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const text = await response.text();
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cache.setDocument(name, text);
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return text;
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}
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export function parseDocument(doc: string) {
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return unified()
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.use(remarkParse).use(remarkFrontmatter, ["yaml", "toml"])
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.parse(doc);
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}
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export type ParsedDocument = ReturnType<typeof parseDocument>;
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export type DocumentChild = ParsedDocument["children"][number];
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export function findRangeOfChildren(children: DocumentChild[]) {
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const firstChild = children[0];
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const lastChild = children.length > 1
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? children[children.length - 1]
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: firstChild;
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const start = firstChild.position?.start.offset;
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const end = lastChild.position?.end.offset;
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if (typeof start !== "number" || typeof end !== "number") return;
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return [start, end];
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}
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export function getTextOfRange(children: DocumentChild[], text: string) {
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if (!children || children.length === 0) {
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return;
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}
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const range = findRangeOfChildren(children);
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if (!range) return;
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return text.substring(range[0], range[1]);
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}
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export function getTextOfChild(child: DocumentChild): string | undefined {
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if ("value" in child) return child.value;
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if ("children" in child) {
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return getTextOfChild(child.children[0]);
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}
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return;
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}
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