variable "release_version_label" {
  type     = string
  default  = null
  nullable = true

  description = "Immutable content release label. Null VCS plans read the live pointer from S3."

  validation {
    condition = (
      var.release_version_label == null ||
      var.release_version_label == "" ||
      can(regex("^[0-9a-f]{40}-[0-9]+-[0-9]+$", var.release_version_label))
    )
    error_message = "release_version_label must be empty or <full-sha>-<run-id>-<attempt>."
  }
}

variable "previous_release_version_label" {
  type     = string
  default  = null
  nullable = true

  description = "Previous content release label used as the origin-group failover. Null VCS plans read the live pointer from S3."

  validation {
    condition = (
      var.previous_release_version_label == null ||
      var.previous_release_version_label == "" ||
      can(regex("^[0-9a-f]{40}-[0-9]+-[0-9]+$", var.previous_release_version_label))
    )
    error_message = "previous_release_version_label must be empty or <full-sha>-<run-id>-<attempt>."
  }
}