--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/parseRdf.ts	Thu Jun 06 17:52:28 2024 -0700
@@ -0,0 +1,40 @@
+import { Parser, Quad_Predicate, Quad_Subject, Store, Term } from "n3";
+export const EV = "http://bigasterisk.com/event#";
+export const RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
+
+export function getLiteral(store: Store, graph: Term, subj: Quad_Subject, pred: Quad_Predicate, missing: string | null): string {
+  let out = null;
+  store.getObjects(subj, pred, graph).forEach((attr) => {
+    out = attr.value;
+  });
+  if (!out) {
+    if (missing === null) {
+      throw new Error();
+    }
+    return missing;
+  }
+  return out;
+}
+
+export async function fetchGraph(url: string) {
+  return await fetch(url, {
+    method: "GET",
+    headers: {
+      Accept: "application/json",
+      "X-Pomerium-Authorization": document.cookie.substring(document.cookie.indexOf("=") + 1),
+    },
+  });
+}
+
+export async function parseGraph(r: Response, done: (store: Store) => void) {
+  const store = new Store();
+  const n3txt = await r.text();
+  const parser = new Parser({ format: "application/trig" });
+  parser.parse(n3txt, (error, quad, prefixes) => {
+    if (quad) {
+      store.addQuad(quad);
+    } else {
+      done(store);
+    }
+  });
+}