import type { AgreementType } from './agreement.types'

function parseEnvId(value: string | undefined): number | undefined {
  if (value === undefined || value === '') return undefined
  const n = Number(value)
  return Number.isFinite(n) && n >= 0 ? n : undefined
}

/** 与后端协议主键对应，可在 .env 中配置 */
export function resolveAgreementId(type: AgreementType): number {
  const fromEnv =
    type === 'service'
      ? parseEnvId(import.meta.env.VITE_AGREEMENT_ID_SERVICE)
      : parseEnvId(import.meta.env.VITE_AGREEMENT_ID_PRIVACY)

  if (fromEnv !== undefined) return fromEnv

  return 0
}

export function parseAgreementIdFromQuery(raw: unknown): number | undefined {
  if (raw === undefined || raw === null || raw === '') return undefined
  const n = Number(raw)
  return Number.isFinite(n) && n >= 0 ? n : undefined
}