export interface WarehouseArrivalPlan {
  plannedAt: string | null
  version: number
  planCount: number
}

/** 默认值只有当地日期，不能作为人工维护的日期时间提交。 */
export function projectWarehouseArrival(arrivalAt: string | null | undefined, plan: WarehouseArrivalPlan | undefined) {
  const canDefault = !plan || plan.version === 0 && plan.planCount === 0
  let date = plan?.plannedAt?.slice(0, 10) || null
  if (!date && canDefault && arrivalAt) {
    const day = arrivalAt.slice(0, 10)
    const calendarDate = new Date(`${day}T12:00:00Z`)
    if (/^\d{4}-\d{2}-\d{2}$/.test(day) && !Number.isNaN(calendarDate.getTime()) && calendarDate.toISOString().slice(0, 10) === day) {
      calendarDate.setUTCDate(calendarDate.getUTCDate() + 2)
      date = calendarDate.toISOString().slice(0, 10)
    }
  }
  return { date, time: plan?.plannedAt?.slice(11, 16) || '', isDefault: !plan?.plannedAt && canDefault }
}