import { allocateNativeSessionTarget } from "../src/executors/native-session-target.ts";
import type { GrantsSession } from "./session.ts";
import type { ExecutionOccurrenceIds } from "./execution-occurrence.ts";
/** Shared delegate/all/chain host setup, before planning/audit; no tool-schema destination parameter. */
export async function nativeDelegationContext(
  session: GrantsSession,
  ids: ExecutionOccurrenceIds,
  budget: number | undefined,
  refused: boolean,
) {
  let sessionFile: string | undefined, refusal: string | undefined;
  if (!refused && session.nativeSessionRoot !== undefined) {
    try {
      sessionFile = await allocateNativeSessionTarget(session.nativeSessionRoot, ids.executionId);
    } catch (error) {
      refusal = `native retention target refused (${String(error)})`;
    }
  }
  return {
    extra: {
      fanoutBudget: budget,
      spawnId: ids.parentId,
      childSpawnId: ids.childId,
      childExecutionId: ids.executionId,
      sessionFile,
    },
    refusal,
  };
}