feat: init

lib/documents.ts

@@ -0,0 +1,73 @@
+import { unified } from "npm:unified";
+import remarkParse from "npm:remark-parse";
+import remarkFrontmatter from "https://esm.sh/remark-frontmatter@4";
+import { parse } from "https://deno.land/std@0.194.0/yaml/mod.ts";
+
+export type Document = {
+  name: string;
+  lastModified: number;
+  contentType: string;
+  size: number;
+  perm: string;
+};
+
+export function parseFrontmatter(yaml: string) {
+  return parse(yaml);
+}
+
+export async function getDocuments(): Promise<Document[]> {
+  const headers = new Headers();
+  headers.append("Accept", "application/json");
+
+  const response = await fetch("http://192.168.178.56:3007/index.json", {
+    headers: headers,
+  });
+
+  return response.json();
+}
+
+export async function getDocument(name: string): Promise<string> {
+  const response = await fetch("http://192.168.178.56:3007/" + name);
+  return await response.text();
+}
+
+export function parseDocument(doc: string) {
+  return unified()
+    .use(remarkParse).use(remarkFrontmatter, ["yaml", "toml"])
+    .parse(doc);
+}
+
+export type ParsedDocument = ReturnType<typeof parseDocument>;
+export type DocumentChild = ParsedDocument["children"][number];
+
+export function findRangeOfChildren(children: DocumentChild[]) {
+  const firstChild = children[0];
+  const lastChild = children.length > 1
+    ? children[children.length - 1]
+    : firstChild;
+
+  const start = firstChild.position?.start.offset;
+  const end = lastChild.position?.end.offset;
+
+  if (typeof start !== "number" || typeof end !== "number") return;
+
+  return [start, end];
+}
+
+export function getTextOfRange(children: DocumentChild[], text: string) {
+  if (!children || children.length === 0) {
+    return;
+  }
+
+  const range = findRangeOfChildren(children);
+  if (!range) return;
+  return text.substring(range[0], range[1]);
+}
+
+export function getTextOfChild(child: DocumentChild): string | undefined {
+  if ("value" in child) return child.value;
+  if ("children" in child) {
+    return getTextOfChild(child.children[0]);
+  }
+  return;
+}