export type AIMode = "chat" | "agents";

export function changeAIMode(
  location: { pathname: string; search: string; hash: string },
  mode: AIMode,
  push: (href: string) => void,
): void {
  if (parseAIMode(new URLSearchParams(location.search).get("tab")) === mode)
    return;
  push(aiModeHref(location.pathname, location.search, mode, location.hash));
}

export function parseAIMode(value: string | null): AIMode {
  return value === "agents" ? "agents" : "chat";
}

export function aiModeHref(
  pathname: string,
  search: string,
  mode: AIMode,
  hash = "",
): string {
  const params = new URLSearchParams(search);
  params.set("tab", mode);
  const query = params.toString();
  return `${pathname}${query ? `?${query}` : ""}${hash}`;
}