WIP

src/persistance/link.ts

@@ -0,0 +1,54 @@
+import { compressPGN } from "../game/PGNHelpers";
+
+type LinkData = {
+  pgn?: string;
+  fen?: string;
+  side?: "b" | "w";
+  ply?: number;
+};
+
+const defaultLinkData = {
+  pgn: "",
+  fen: "",
+  side: "w",
+  ply: 0,
+};
+
+let linkData: LinkData = { ...defaultLinkData } as LinkData;
+
+const link = {
+  set(data: LinkData) {
+    if (data.fen) {
+      linkData = { ...defaultLinkData } as LinkData;
+      linkData.fen = data.fen;
+
+      location.hash = `fen/${linkData.fen}`;
+      return;
+    }
+
+    if (data.pgn) {
+      linkData = { ...defaultLinkData } as LinkData;
+      linkData.pgn = compressPGN(data.pgn);
+    }
+
+    if (data.side) {
+      linkData.side = data.side;
+    }
+
+    if (data.ply !== undefined) {
+      linkData.ply = data.ply;
+    }
+
+    location.hash = `pgn/${linkData.side}/${linkData.ply}/${linkData.pgn}`;
+  },
+
+  get() {
+    return location.href;
+  },
+
+  entries() {
+    return { ...linkData } as LinkData;
+  },
+};
+
+export default link;