type CommandContext = {
  reset: () => void | boolean | Promise<void | boolean>;
  openHelp?: () => void;
  toggleStatus?: () => void | Promise<void>;
  toggleDocs?: () => void | Promise<void>;
  focusComposer?: () => void;
  setToast?: (message: string) => void;
};

function normalize(input: string): string {
  return String(input || "").trim().toLowerCase();
}

function commandList(ctx: CommandContext): string {
  const cmds = ["/reset", "/help", "/status", "/focus"];
  if (ctx.toggleDocs) cmds.push("/docs");
  return cmds.join(", ");
}

export async function runLocalChatCommand(rawMessage: string, ctx: CommandContext): Promise<boolean> {
  const msg = normalize(rawMessage);
  if (!msg.startsWith("/")) return false;

  if (msg === "/reset") {
    const didReset = await ctx.reset();
    if (didReset !== false) {
      ctx.setToast?.("Conversation reset");
    }
    return true;
  }
  if (msg === "/help") {
    ctx.openHelp?.();
    return true;
  }
  if (msg === "/status") {
    if (ctx.toggleStatus) {
      await ctx.toggleStatus();
      return true;
    }
    ctx.setToast?.("Status panel is not available on this tab.");
    return true;
  }
  if (msg === "/docs") {
    if (ctx.toggleDocs) {
      await ctx.toggleDocs();
      return true;
    }
    ctx.setToast?.("Docs panel is not available on this tab.");
    return true;
  }
  if (msg === "/focus") {
    if (ctx.focusComposer) {
      ctx.focusComposer();
      return true;
    }
    ctx.setToast?.("Composer focus is not available on this tab.");
    return true;
  }
  if (msg === "/commands") {
    ctx.setToast?.(`Commands: ${commandList(ctx)}`);
    return true;
  }

  ctx.setToast?.(`Unknown command. Try: ${commandList(ctx)}, /commands`);
  return true;
}