FEATURE: created edit and delete flags (#27484)

Allow admins to create edit and delete flags.

app/services/flags/create_flag.rb

@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+class Flags::CreateFlag
+  include Service::Base
+
+  contract
+  policy :invalid_access
+  model :flag, :instantiate_flag
+
+  transaction do
+    step :create
+    step :log
+  end
+
+  class Contract
+    attribute :name, :string
+    attribute :description, :string
+    attribute :enabled, :boolean
+    attribute :applies_to
+    validates :name, presence: true
+    validates :description, presence: true
+    validates :name, length: { maximum: Flag::MAX_NAME_LENGTH }
+    validates :description, length: { maximum: Flag::MAX_DESCRIPTION_LENGTH }
+    validates :applies_to, inclusion: { in: Flag.valid_applies_to_types }, allow_nil: false
+  end
+
+  private
+
+  def instantiate_flag(name:, description:, applies_to:, enabled:)
+    Flag.new(
+      name: name,
+      description: description,
+      applies_to: applies_to,
+      enabled: enabled,
+      notify_type: true,
+    )
+  end
+
+  def invalid_access(guardian:)
+    guardian.can_create_flag?
+  end
+
+  def create(flag:)
+    flag.save!
+  end
+
+  def log(guardian:, flag:)
+    StaffActionLogger.new(guardian.user).log_custom(
+      "create_flag",
+      {
+        name: flag.name,
+        description: flag.description,
+        applies_to: flag.applies_to,
+        enabled: flag.enabled,
+      },
+    )
+  end
+end

app/services/flags/destroy_flag.rb

@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+class Flags::DestroyFlag
+  include Service::Base
+
+  model :flag
+  policy :not_system
+  policy :not_used
+  policy :invalid_access
+
+  transaction do
+    step :destroy
+    step :log
+  end
+
+  private
+
+  def fetch_flag(id:)
+    Flag.find(id)
+  end
+
+  def not_system(flag:)
+    !flag.system?
+  end
+
+  def not_used(flag:)
+    !flag.used?
+  end
+
+  def invalid_access(guardian:, flag:)
+    guardian.can_edit_flag?(flag)
+  end
+
+  def destroy(flag:)
+    flag.destroy!
+  end
+
+  def log(guardian:, flag:)
+    StaffActionLogger.new(guardian.user).log_custom(
+      "delete_flag",
+      {
+        name: flag.name,
+        description: flag.description,
+        applies_to: flag.applies_to,
+        enabled: flag.enabled,
+      },
+    )
+  end
+end

app/services/flags/reorder_flag.rb

@@ -2,7 +2,7 @@
 
 VALID_DIRECTIONS = %w[up down]
 
-class ReorderFlag
+class Flags::ReorderFlag
   include Service::Base
 
   contract

app/services/flags/toggle_flag.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class ToggleFlag
+class Flags::ToggleFlag
   include Service::Base
 
   contract

app/services/flags/update_flag.rb

@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+class Flags::UpdateFlag
+  include Service::Base
+
+  contract
+  model :flag
+  policy :not_system
+  policy :not_used
+  policy :invalid_access
+
+  transaction do
+    step :update
+    step :log
+  end
+
+  class Contract
+    attribute :name, :string
+    attribute :description, :string
+    attribute :enabled, :boolean
+    attribute :applies_to
+    validates :name, presence: true
+    validates :description, presence: true
+    validates :name, length: { maximum: Flag::MAX_NAME_LENGTH }
+    validates :description, length: { maximum: Flag::MAX_DESCRIPTION_LENGTH }
+    validates :applies_to, inclusion: { in: Flag.valid_applies_to_types }, allow_nil: false
+  end
+
+  private
+
+  def fetch_flag(id:)
+    Flag.find(id)
+  end
+
+  def not_system(flag:)
+    !flag.system?
+  end
+
+  def not_used(flag:)
+    !flag.used?
+  end
+
+  def invalid_access(guardian:, flag:)
+    guardian.can_edit_flag?(flag)
+  end
+
+  def update(flag:, name:, description:, applies_to:, enabled:)
+    flag.update!(name: name, description: description, applies_to: applies_to, enabled: enabled)
+  end
+
+  def log(guardian:, flag:)
+    StaffActionLogger.new(guardian.user).log_custom(
+      "update_flag",
+      {
+        name: flag.name,
+        description: flag.description,
+        applies_to: flag.applies_to,
+        enabled: flag.enabled,
+      },
+    )
+  end
+end