import type { Environment } from "@paperclipai/shared";

/** Resolve runner retention before acquiring a sandbox, not after it is ephemeral.
 * This is a run-scoped view; never persist it over a shared environment's config.
 * The driver still verifies provider support and chooses the actual lease policy.
 */
export function resolveRunnerEnvironmentForRun<T extends Pick<Environment, "driver" | "config">>(
  environment: T,
  adapterType: string,
  adapterConfig: Record<string, unknown> = {},
  admittedLifecycleMode?: "warm" | "per_turn",
): T {
  if (adapterType !== "paperclip_runner" || environment.driver !== "sandbox") return environment;
  const config = environment.config ?? {};
  const lifecycleMode = admittedLifecycleMode ?? (config.runnerLifecycleMode === "warm" || config.runnerLifecycleMode === "per_turn"
    ? config.runnerLifecycleMode
    : adapterConfig.lifecycleMode);
  if (lifecycleMode !== "warm") return environment;
  return {
    ...environment,
    config: {
      ...config,
      reuseLease: true,
    },
  };
}