context.tf

module "this" {
  source  = "applike/label/aws"
  version = "1.1.0"

  enabled             = var.enabled
  project             = var.project
  environment         = var.environment
  family              = var.family
  application         = var.application
  delimiter           = var.delimiter
  attributes          = var.attributes
  tags                = var.tags
  additional_tag_map  = var.additional_tag_map
  label_order         = var.label_order
  regex_replace_chars = var.regex_replace_chars
  id_length_limit     = var.id_length_limit
  label_key_case      = var.label_key_case
  label_value_case    = var.label_value_case

  context = var.context
}

variable "context" {
  type = any
  default = {
    enabled             = true
    project             = null
    environment         = null
    family              = null
    application         = null
    delimiter           = null
    attributes          = []
    tags                = {}
    additional_tag_map  = {}
    regex_replace_chars = null
    label_order         = []
    id_length_limit     = null
    label_key_case      = null
    label_value_case    = null
  }
  description = <<-EOT
    Single object for setting entire context at once.
    See description of individual variables for details.
    Leave string and numeric variables as `null` to use default value.
    Individual variable settings (non-null) override settings in context object,
    except for attributes, tags, and additional_tag_map, which are merged.
  EOT

  validation {
    condition = lookup(var.context, "label_key_case", null) == null ? true : contains([
      "lower",
      "title",
    "upper"], var.context["label_key_case"])
    error_message = "Allowed values: `lower`, `title`, `upper`."
  }

  validation {
    condition = lookup(var.context, "label_value_case", null) == null ? true : contains([
      "lower",
      "title",
      "upper",
    "none"], var.context["label_value_case"])
    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
  }
}

variable "enabled" {
  type        = bool
  default     = null
  description = "Set to false to prevent the module from creating any resources"
}

variable "project" {
  type        = string
  default     = null
  description = "Project, which could be your organization name or abbreviation, e.g. 'eg' or 'cp'"
}

variable "environment" {
  type        = string
  default     = null
  description = "Environment, e.g. 'uw2', 'us-west-2', or 'prod', 'staging', 'dev', 'UAT'"
}

variable "family" {
  type        = string
  default     = null
  description = "Family, which groups your apps into business domains, e.g. 'monitoring' or 'payment'"
}

variable "application" {
  type        = string
  default     = null
  description = "Solution application, e.g. 'app' or 'jenkins'"
}

variable "delimiter" {
  type        = string
  default     = null
  description = <<-EOT
    Delimiter to be used between `project`, `environment`, `family`, `application` and `attributes`.
    Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.
  EOT
}

variable "attributes" {
  type        = list(string)
  default     = []
  description = "Additional attributes (e.g. `1`)"
}

variable "tags" {
  type        = map(string)
  default     = {}
  description = "Additional tags (e.g. `map('BusinessUnit','XYZ')`"
}

variable "additional_tag_map" {
  type        = map(string)
  default     = {}
  description = "Additional tags for appending to tags_as_list_of_maps. Not added to `tags`."
}

variable "label_order" {
  type        = list(string)
  default     = null
  description = <<-EOT
    The naming order of the id output and Name tag.
    Defaults to ["project", "environment", "family", "application", "attributes"].
    You can omit any of the 5 elements, but at least one must be present.
  EOT
}

variable "regex_replace_chars" {
  type        = string
  default     = null
  description = <<-EOT
    Regex to replace chars with empty string in `project`, `environment`, `family` and `application`.
    If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.
  EOT
}

variable "id_length_limit" {
  type        = number
  default     = null
  description = <<-EOT
    Limit `id` to this many characters (minimum 6).
    Set to `0` for unlimited length.
    Set to `null` for default, which is `0`.
    Does not affect `id_full`.
  EOT
  validation {
    condition     = var.id_length_limit == null ? true : var.id_length_limit >= 6 || var.id_length_limit == 0
    error_message = "The id_length_limit must be >= 6 if supplied (not null), or 0 for unlimited length."
  }
}

variable "label_key_case" {
  type        = string
  default     = null
  description = <<-EOT
    The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`.
    Possible values: `lower`, `title`, `upper`.
    Default value: `title`.
  EOT

  validation {
    condition = var.label_key_case == null ? true : contains([
      "lower",
      "title",
    "upper"], var.label_key_case)
    error_message = "Allowed values: `lower`, `title`, `upper`."
  }
}

variable "label_value_case" {
  type        = string
  default     = null
  description = <<-EOT
    The letter case of output label values (also used in `tags` and `id`).
    Possible values: `lower`, `title`, `upper` and `none` (no transformation).
    Default value: `lower`.
  EOT

  validation {
    condition = var.label_value_case == null ? true : contains([
      "lower",
      "title",
      "upper",
    "none"], var.label_value_case)
    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
  }
}