import { normalizeLowercaseStringOrEmpty } from "openclaw/plugin-sdk/text-runtime";

export function normalizeOpenRouterModelId(modelId: unknown): string | undefined {
  if (typeof modelId !== "string") {
    return undefined;
  }
  const normalized = normalizeLowercaseStringOrEmpty(modelId);
  return normalized.startsWith("openrouter/") ? normalized.slice("openrouter/".length) : normalized;
}

export function isOpenRouterDeepSeekV4ModelId(modelId: unknown): boolean {
  const normalized = normalizeOpenRouterModelId(modelId);
  if (!normalized?.startsWith("deepseek/")) {
    return false;
  }
  const deepSeekModelId = normalized.slice("deepseek/".length).split(":", 1)[0];
  return deepSeekModelId === "deepseek-v4-flash" || deepSeekModelId === "deepseek-v4-pro";
}