import { Faction } from '@staratlas/dev-profile-faction';

import type { Region, RiskZone } from './generated';
import { SafetyStatus } from './generated';

export type EffectiveRiskRegion = Pick<
  Region,
  'owner' | 'riskZone' | 'safetyStatus'
>;

/**
 * Resolve the risk tier currently enforced by the SAGE program.
 *
 * `riskZone` is the authored/base tier. Authored Low Risk home territory is
 * immutable; a captured Medium or High Risk region is effectively Low Risk
 * while its dynamic safety status is `Safe`.
 */
export function resolveEffectiveRiskZone(
  region: EffectiveRiskRegion,
): RiskZone {
  if (
    region.riskZone.__kind === 'LowRiskZone' ||
    region.safetyStatus !== SafetyStatus.Safe ||
    region.owner === Faction.Unaligned
  ) {
    return region.riskZone;
  }

  return { __kind: 'LowRiskZone', fields: [region.owner] };
}