variable "sender" {
  type        = string
  description = "ARN of SNS sender or sending service name"
}

variable "sender-type" {
  type        = string
  description = "Sender principal type. Value should be either *AWS* or *Service*"
  validation {
    condition     = var.sender-type == "AWS" || var.sender-type == "Service"
    error_message = "Valid values are AWS or Service"
  }
}

variable "sns-topic-name" {
  type        = string
  description = "Name of SNS topic"
}

variable "sns-topic-description" {
  type        = string
  description = "SNS topic display name"
}

variable "kms-key-id" {
  type        = string
  description = "KMS key id for SNS topic at-rest encryption. Make sure the sender has access to this key"
}

variable "email-addresses" {
  type        = set(string)
  description = "Email recipients of SNS notifications"
}