export const PRODUCT_NAME = "MikrotikManager"
export const LEGACY_PRODUCT_NAME = "RouterLists"

export function hasManagedCommentPrefix(comment: string): boolean {
  const value = comment.trim()
  return value.startsWith(`${PRODUCT_NAME}:`) || value.startsWith(`${LEGACY_PRODUCT_NAME}:`)
}

export function hasManagedRecursiveComment(comment: string): boolean {
  const value = comment.trim()
  return (
    value.startsWith(`${PRODUCT_NAME}:recursive`) ||
    value.startsWith(`${LEGACY_PRODUCT_NAME}:recursive`)
  )
}

export function managedComment(label: string): string {
  return `${PRODUCT_NAME}: ${label}`
}

export function managedRecursiveComment(comment?: string | null): string {
  const stripped = stripManagedRecursiveComment(comment ?? "")
  return stripped ? `${PRODUCT_NAME}:recursive ${stripped}` : `${PRODUCT_NAME}:recursive`
}

const LEGACY_RECURSIVE_PREFIX = /^recursive:\s*/i

export function stripManagedRecursiveComment(comment: string): string {
  const value = comment.trim()
  if (!value) return ""
  const managedPrefixes = [
    `${PRODUCT_NAME}:recursive`,
    `${LEGACY_PRODUCT_NAME}:recursive`,
  ]
  for (const prefix of managedPrefixes) {
    if (value.startsWith(prefix)) return value.slice(prefix.length).trim()
  }
  if (LEGACY_RECURSIVE_PREFIX.test(value)) {
    return value.replace(LEGACY_RECURSIVE_PREFIX, "").trim()
  }
  return value
}

/** Owned recursive route: MM/legacy prefix or old `recursive:` mask. */
export function isOwnedRecursiveComment(comment: string | undefined): boolean {
  if (!comment) return false
  const value = comment.trim()
  return hasManagedRecursiveComment(value) || LEGACY_RECURSIVE_PREFIX.test(value)
}