/**
 * Agent run timeout resolver.
 *
 * Converts config and per-run overrides into timer-safe millisecond deadlines.
 */
import {
  clampTimerTimeoutMs,
  MAX_TIMER_TIMEOUT_MS,
} from "@openclaw/normalization-core/number-coercion";
import type { OpenClawConfig } from "../config/types.openclaw.js";

const DEFAULT_AGENT_TIMEOUT_SECONDS = 48 * 60 * 60;
export const DEFAULT_AGENT_TIMEOUT_MS = DEFAULT_AGENT_TIMEOUT_SECONDS * 1000;
const NO_TIMEOUT_MS = MAX_TIMER_TIMEOUT_MS;
const NO_TIMEOUT_SECONDS = Math.floor(NO_TIMEOUT_MS / 1000);

const normalizeNumber = (value: unknown): number | undefined =>
  typeof value === "number" && Number.isFinite(value) ? Math.floor(value) : undefined;

function resolveAgentTimeoutSeconds(cfg?: OpenClawConfig): number {
  const raw = normalizeNumber(cfg?.agents?.defaults?.timeoutSeconds);
  // Config 0 uses the same unlimited-run sentinel as per-run overrides. The
  // LLM idle watchdog still enforces liveness under that sentinel.
  if (raw === 0) {
    return NO_TIMEOUT_SECONDS;
  }
  const seconds = raw ?? DEFAULT_AGENT_TIMEOUT_SECONDS;
  return Math.max(seconds, 1);
}

export function resolveAgentTimeoutMs(opts: {
  cfg?: OpenClawConfig;
  overrideMs?: number | null;
  overrideSeconds?: number | null;
  minMs?: number;
}): number {
  const minMs = Math.max(normalizeNumber(opts.minMs) ?? 1, 1);
  const clampTimeoutMs = (valueMs: number) => clampTimerTimeoutMs(valueMs, minMs) ?? minMs;
  const defaultMs = clampTimeoutMs(resolveAgentTimeoutSeconds(opts.cfg) * 1000);
  const overrideMs = normalizeNumber(opts.overrideMs);
  if (overrideMs !== undefined) {
    if (overrideMs === 0) {
      return NO_TIMEOUT_MS;
    }
    if (overrideMs < 0) {
      return defaultMs;
    }
    return clampTimeoutMs(overrideMs);
  }
  const overrideSeconds = normalizeNumber(opts.overrideSeconds);
  if (overrideSeconds !== undefined) {
    if (overrideSeconds === 0) {
      return NO_TIMEOUT_MS;
    }
    if (overrideSeconds < 0) {
      return defaultMs;
    }
    return clampTimeoutMs(overrideSeconds * 1000);
  }
  return defaultMs;
}