WIP

src/persistance/extractUrlData.ts

@@ -0,0 +1,27 @@
+import { decompressPGN } from "../game/PGNHelpers";
+
+const HEADER_REGEX = /^#v\d+\/(pgn|fen)\//;
+
+const extractUrlData = () => {
+  const hash = window.location.hash;
+
+  if (!HEADER_REGEX.test(hash)) {
+    return {
+      pgn: "",
+      fen: "",
+    };
+  }
+
+  const [rawVersion, format, ...chunks] = hash.split("/");
+
+  const version = Number((rawVersion.match(/\d+/g) ?? [])[0]);
+  const data = chunks.join("/");
+
+  return {
+    version,
+    pgn: format === "pgn" ? decompressPGN(data) : "",
+    fen: format === "fen" ? decodeURI(data) : "",
+  };
+};
+
+export default extractUrlData;