style(rubocop): Style/MutableConstant

app/models/credential.rb

@@ -23,7 +23,7 @@ class Credential < ApplicationRecord
 
   belongs_to :server
 
-  TYPES = ["SMTP", "API", "SMTP-IP"]
+  TYPES = ["SMTP", "API", "SMTP-IP"].freeze
 
   validates :key, presence: true, uniqueness: { case_sensitive: false }
   validates :type, inclusion: { in: TYPES }

app/models/domain.rb

@@ -44,15 +44,14 @@ class Domain < ApplicationRecord
 
   include HasDNSChecks
 
-  VERIFICATION_EMAIL_ALIASES = ["webmaster", "postmaster", "admin", "administrator", "hostmaster"]
+  VERIFICATION_EMAIL_ALIASES = ["webmaster", "postmaster", "admin", "administrator", "hostmaster"].freeze
+  VERIFICATION_METHODS = ["DNS", "Email"].freeze
 
   belongs_to :server, optional: true
   belongs_to :owner, optional: true, polymorphic: true
   has_many :routes, dependent: :destroy
   has_many :track_domains, dependent: :destroy
 
-  VERIFICATION_METHODS = ["DNS", "Email"]
-
   validates :name, presence: true, format: { with: /\A[a-z0-9\-.]*\z/ }, uniqueness: { case_sensitive: false, scope: [:owner_type, :owner_id], message: "is already added" }
   validates :verification_method, inclusion: { in: VERIFICATION_METHODS }
 

app/models/http_endpoint.rb

@@ -31,8 +31,8 @@ class HTTPEndpoint < ApplicationRecord
   has_many :routes, as: :endpoint
   has_many :additional_route_endpoints, dependent: :destroy, as: :endpoint
 
-  ENCODINGS = ["BodyAsJSON", "FormData"]
-  FORMATS = ["Hash", "RawMessage"]
+  ENCODINGS = ["BodyAsJSON", "FormData"].freeze
+  FORMATS = ["Hash", "RawMessage"].freeze
 
   before_destroy :update_routes
 

app/models/organization.rb

@@ -25,7 +25,7 @@
 
 class Organization < ApplicationRecord
 
-  RESERVED_PERMALINKS = ["new", "edit", "remove", "delete", "destroy", "admin", "mail", "org", "server"]
+  RESERVED_PERMALINKS = ["new", "edit", "remove", "delete", "destroy", "admin", "mail", "org", "server"].freeze
 
   INITIAL_QUOTA = 10
   INITIAL_SUPER_QUOTA = 10_000

app/models/route.rb

@@ -24,7 +24,9 @@
 
 class Route < ApplicationRecord
 
-  MODES = ["Endpoint", "Accept", "Hold", "Bounce", "Reject"]
+  MODES = ["Endpoint", "Accept", "Hold", "Bounce", "Reject"].freeze
+  SPAM_MODES = ["Mark", "Quarantine", "Fail"].freeze
+  ENDPOINT_TYPES = ["SMTPEndpoint", "HTTPEndpoint", "AddressEndpoint"].freeze
 
   include HasUUID
 
@@ -33,9 +35,6 @@ class Route < ApplicationRecord
   belongs_to :endpoint, polymorphic: true, optional: true
   has_many :additional_route_endpoints, dependent: :destroy
 
-  SPAM_MODES = ["Mark", "Quarantine", "Fail"]
-  ENDPOINT_TYPES = ["SMTPEndpoint", "HTTPEndpoint", "AddressEndpoint"]
-
   validates :name, presence: true, format: /\A(([a-z0-9\-.]*)|(\*)|(__returnpath__))\z/
   validates :spam_mode, inclusion: { in: SPAM_MODES }
   validates :endpoint, presence: { if: proc { mode == "Endpoint" } }

app/models/server.rb

@@ -43,7 +43,8 @@
 
 class Server < ApplicationRecord
 
-  RESERVED_PERMALINKS = ["new", "all", "search", "stats", "edit", "manage", "delete", "destroy", "remove"]
+  RESERVED_PERMALINKS = ["new", "all", "search", "stats", "edit", "manage", "delete", "destroy", "remove"].freeze
+  MODES = ["Live", "Development"].freeze
 
   include HasUUID
   include HasSoftDestroy
@@ -64,8 +65,6 @@ class Server < ApplicationRecord
   has_many :track_domains, dependent: :destroy
   has_many :ip_pool_rules, dependent: :destroy, as: :owner
 
-  MODES = ["Live", "Development"]
-
   random_string :token, type: :chars, length: 6, unique: true, upper_letters_only: true
   default_value :permalink, -> { name ? name.parameterize : nil }
   default_value :raw_message_retention_days, -> { 30 }

app/models/smtp_endpoint.rb

@@ -26,7 +26,7 @@ class SMTPEndpoint < ApplicationRecord
   has_many :routes, as: :endpoint
   has_many :additional_route_endpoints, dependent: :destroy, as: :endpoint
 
-  SSL_MODES = ["None", "Auto", "STARTTLS", "TLS"]
+  SSL_MODES = ["None", "Auto", "STARTTLS", "TLS"].freeze
 
   before_destroy :update_routes
 

app/models/webhook_event.rb

@@ -25,7 +25,7 @@ class WebhookEvent < ApplicationRecord
     "MessageLinkClicked",
     "MessageLoaded",
     "DomainDNSError"
-  ]
+  ].freeze
 
   belongs_to :webhook
 

app/models/webhook_request.rb

@@ -21,7 +21,7 @@ class WebhookRequest < ApplicationRecord
 
   include HasUUID
 
-  RETRIES = { 1 => 2.minutes, 2 => 3.minutes, 3 => 6.minutes, 4 => 10.minutes, 5 => 15.minutes }
+  RETRIES = { 1 => 2.minutes, 2 => 3.minutes, 3 => 6.minutes, 4 => 10.minutes, 5 => 15.minutes }.freeze
 
   belongs_to :server
   belongs_to :webhook, optional: true