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d2ypp2/web-console/lib/nekoLinks.ts

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+export type QuickLinkMap = Record<string, string>;
+
+export type NekoBrowserLink = {
+  id: number;
+  key: string;
+  label: string;
+  url: string;
+  port: string;
+};
+
+const NEKO_KEY_RE = /^neko_browser(?:_(\d+))?$/i;
+
+function parsePort(url: string): string {
+  try {
+    return new URL(url, "http://127.0.0.1").port || "";
+  } catch {
+    return "";
+  }
+}
+
+export function extractNekoBrowserLinks(quickLinks?: QuickLinkMap | null): NekoBrowserLink[] {
+  const picked = new Map<number, NekoBrowserLink>();
+  for (const [key, rawUrl] of Object.entries(quickLinks ?? {})) {
+    const match = key.match(NEKO_KEY_RE);
+    const url = rawUrl.trim();
+    if (!match || !url) continue;
+    const id = key === "neko_browser" ? 1 : Number(match[1] || 1);
+    const next: NekoBrowserLink = {
+      id,
+      key,
+      label: `Neko ${id}`,
+      url,
+      port: parsePort(url),
+    };
+    const current = picked.get(id);
+    const preferNext = key !== "neko_browser";
+    if (!current || preferNext) picked.set(id, next);
+  }
+  return Array.from(picked.values()).sort((a, b) => a.id - b.id);
+}
+
+export function resolveNekoBrowserLink(
+  links: NekoBrowserLink[],
+  preferredIndex: number,
+): { link: NekoBrowserLink | null; fallback: boolean } {
+  if (!links.length) return { link: null, fallback: false };
+  if (!Number.isInteger(preferredIndex) || preferredIndex < 0) {
+    return { link: links[0], fallback: false };
+  }
+  if (preferredIndex < links.length) {
+    return { link: links[preferredIndex], fallback: false };
+  }
+  return { link: links[0], fallback: true };
+}
+
+export function formatNekoPorts(links: NekoBrowserLink[]): string {
+  const ports = links.map((item) => item.port).filter(Boolean);
+  return ports.length ? ports.map((port) => `:${port}`).join(" / ") : "";
+}