export const NON_EVM_RELAY_LIFECYCLE = [
  'initiate',
  'observe_destination',
  'confirm_finalize',
  'reject_replay',
  'refund_recover'
] as const;

export type NonEvmRelayLifecycleStep = (typeof NON_EVM_RELAY_LIFECYCLE)[number];

export type NonEvmExposureStatus =
  | 'planned'
  | 'operator_ready'
  | 'public_ready'
  | 'live'
  | 'gated_by_chain138_prerequisites';

export interface NonEvmNetworkPolicy {
  identifier: string;
  relayMode: 'custom_relay' | 'custom_relay_scaffold' | 'parallel_program';
  destinationProgramModel: string;
  signerFundingPolicy: string;
  finalityPolicy: string;
  publicExposureStatus: Exclude<NonEvmExposureStatus, 'gated_by_chain138_prerequisites'>;
}

export interface NonEvmRelayObservation {
  requestId: string;
  lifecycleStep: NonEvmRelayLifecycleStep;
  destinationReference?: string;
  fulfillmentId?: string;
  finalityValue?: number;
  replayRejected?: boolean;
}

export function deriveExposureStatus(
  policy: NonEvmNetworkPolicy,
  checks: {
    adapterPresent: boolean;
    relaySurfacePresent: boolean;
    chain138PrerequisitesReady: boolean;
  }
): NonEvmExposureStatus {
  if (!checks.adapterPresent || !checks.relaySurfacePresent) {
    return 'planned';
  }

  if (!checks.chain138PrerequisitesReady) {
    return 'gated_by_chain138_prerequisites';
  }

  return policy.publicExposureStatus;
}