Class: CommandTower::Messaging::Preferences::Evaluator

Inherits:
Object
  • Object
show all
Defined in:
app/services/command_tower/messaging/preferences/evaluator.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(notification_type_key:, recipient_id:, preference_state:, platform_enabled_channels:) ⇒ Evaluator

Returns a new instance of Evaluator.



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# File 'app/services/command_tower/messaging/preferences/evaluator.rb', line 11

def initialize(
  notification_type_key:,
  recipient_id:,
  preference_state:,
  platform_enabled_channels:
)
  @notification_type_key = notification_type_key.to_s
  @recipient_id = recipient_id
  @raw_preference_state = preference_state
  @platform_enabled_channels = Array(platform_enabled_channels).map(&:to_s).freeze
end

Class Method Details

.call ⇒ Object 



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# File 'app/services/command_tower/messaging/preferences/evaluator.rb', line 7

def self.call(...)
  new(...).call
end

Instance Method Details

#call ⇒ Object 



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# File 'app/services/command_tower/messaging/preferences/evaluator.rb', line 23

def call
  declaration = lookup_declaration!
  defaults = PreferenceState.from_declaration_default(declaration.default_preference_state)
  recipient_override = PreferenceState.normalize(@raw_preference_state)

  effective =
    if declaration.user_configurable && recipient_override
      recipient_override.merge_over(defaults)
    else
      defaults
    end

  permitted = []
  suppressed = []

  declaration.allowed_channels.each do |channel|
    if !@platform_enabled_channels.include?(channel)
      suppressed << SuppressedDestination.build(
        destination: channel,
        reason_class: ReasonClasses::SKIPPED_BY_POLICY,
      )
      next
    end

    if declaration.user_configurable && !effective.channel_enabled?(channel, default: true)
      suppressed << SuppressedDestination.build(
        destination: channel,
        reason_class: ReasonClasses::SUPPRESSED_BY_PREFERENCE,
      )
      next
    end

    # Not user-configurable: preference opt-outs ignored; still require default enablement
    if !declaration.user_configurable && !effective.channel_enabled?(channel, default: true)
      suppressed << SuppressedDestination.build(
        destination: channel,
        reason_class: ReasonClasses::SKIPPED_BY_POLICY,
      )
      next
    end

    permitted << channel
  end

  extras = effective.channels.keys - declaration.allowed_channels
  extras.each do |channel|
    suppressed << SuppressedDestination.build(
      destination: channel,
      reason_class: ReasonClasses::SKIPPED_BY_POLICY,
    )
  end

  inbox_permitted, inbox_suppressed = evaluate_inbox(declaration, effective)
  suppressed.concat(inbox_suppressed)

  mandatory_enforced = false
  if declaration.mandatory
    permitted, suppressed, inbox_permitted, mandatory_enforced =
      enforce_mandatory(
        declaration:,
        defaults:,
        permitted:,
        suppressed:,
        inbox_permitted:,
      )
  end

  EvaluationResult.build(
    notification_type_key: @notification_type_key,
    recipient_id: @recipient_id,
    permitted_channels: permitted.uniq,
    inbox_permitted:,
    suppressed_destinations: suppressed,
    mandatory: declaration.mandatory,
    mandatory_enforced:,
    stored_override_present: false,
    effective_preference_state: effective.to_raw_hash,
  )
end