import type { SubnetAutopsyPacket } from '../types';

export interface SeerSubnetAutopsyEvent {
  type: 'subnet_immune_autopsy';
  prefix: string;
  triggered?: string;
  cause?: string;
  packet?: SubnetAutopsyPacket;
}

export function parseSeerSubnetAutopsy(payload: unknown): SeerSubnetAutopsyEvent | null {
  if (!payload || typeof payload !== 'object') return null;
  const raw = payload as Record<string, unknown>;
  if (raw.type !== 'subnet_immune_autopsy') return null;
  const prefix = typeof raw.prefix === 'string' ? raw.prefix.trim() : '';
  if (!prefix) return null;
  return {
    type: 'subnet_immune_autopsy',
    prefix,
    triggered: typeof raw.triggered === 'string' ? raw.triggered : undefined,
    cause: typeof raw.cause === 'string' ? raw.cause : undefined,
    packet: raw.packet as SubnetAutopsyPacket | undefined,
  };
}

/** Normalize subnet labels to /24 prefix keys used by the API. */
export function subnetAutopsyPrefix(label: string): string {
  const s = label.trim().replace(/\.x$/i, '').replace(/\/24$/, '');
  const parts = s.split('.');
  if (parts.length >= 3) {
    return `${parts[0]}.${parts[1]}.${parts[2]}`;
  }
  return s;
}