export const OPENCLAW_CHAT_CONFIG_KEY = "openclaw_chat_config";

export const DEFAULT_OPENCLAW_CHAT_BASE_URL = "http://192.168.42.154:18790";

export type OpenClawChatConfig = {
  enabled: boolean;
  baseUrl: string;
  token: string;
  timeoutMs: number;
};

export type PublicOpenClawChatConfig = {
  enabled: boolean;
  baseUrl: string;
};

export type AdminOpenClawChatConfig = Omit<OpenClawChatConfig, "token"> & {
  token: "";
  hasToken: boolean;
  tokenPreview: string;
};

const DEFAULT_TIMEOUT_MS = 180_000;
const MIN_TIMEOUT_MS = 5_000;
const MAX_TIMEOUT_MS = 300_000;

function readRecord(value: unknown): Record<string, unknown> {
  return value && typeof value === "object" && !Array.isArray(value)
    ? (value as Record<string, unknown>)
    : {};
}

function normalizeBaseUrl(value: unknown) {
  return (
    String(value || "").trim().replace(/\/+$/, "") ||
    DEFAULT_OPENCLAW_CHAT_BASE_URL
  );
}

function normalizeTimeoutMs(value: unknown) {
  const numeric = Number(value);
  if (!Number.isFinite(numeric)) return DEFAULT_TIMEOUT_MS;
  return Math.min(MAX_TIMEOUT_MS, Math.max(MIN_TIMEOUT_MS, Math.round(numeric)));
}

export function normalizeOpenClawChatConfig(
  value: unknown,
  fallbackToken = ""
): OpenClawChatConfig {
  const raw = readRecord(value);
  const token = String(raw.token || "").trim() || fallbackToken.trim();

  return {
    enabled: raw.enabled === true,
    baseUrl: normalizeBaseUrl(raw.baseUrl),
    token,
    timeoutMs: normalizeTimeoutMs(raw.timeoutMs),
  };
}

export function normalizePublicOpenClawChatConfig(
  value: unknown
): PublicOpenClawChatConfig {
  const config = normalizeOpenClawChatConfig(value);

  return {
    enabled: config.enabled && Boolean(config.baseUrl) && Boolean(config.token),
    baseUrl: config.baseUrl,
  };
}

export function maskOpenClawToken(token: string) {
  const normalized = token.trim();
  if (!normalized) return "";
  if (normalized.length <= 8) return "********";
  return `${normalized.slice(0, 4)}****${normalized.slice(-4)}`;
}

export function toAdminOpenClawChatConfig(
  value: unknown
): AdminOpenClawChatConfig {
  const config = normalizeOpenClawChatConfig(value);

  return {
    enabled: config.enabled,
    baseUrl: config.baseUrl,
    token: "",
    hasToken: Boolean(config.token),
    tokenPreview: maskOpenClawToken(config.token),
    timeoutMs: config.timeoutMs,
  };
}