toothrot/amplitude-api

# frozen_string_literal: true

class AmplitudeAPI
  # AmplitudeAPI::Identification
  class Identification
    # @!attribute [ rw ] user_id
    #   @return [ String ] the user_id to be sent to Amplitude
    attr_reader :user_id
    # @!attribute [ rw ] device_id
    #   @return [ String ] the device_id to be sent to Amplitude
    attr_accessor :device_id
    # @!attribute [ rw ] user_properties
    #   @return [ String ] the user_properties to be attached to the Amplitude Identify
    attr_accessor :user_properties

    # Create a new Identification
    #
    # @param [ String ] user_id a user_id to associate with the identification
    # @param [ String ] device_id a device_id to associate with the identification
    # @param [ Hash ] user_properties various properties to attach to the user identification
    def initialize(user_id: "", device_id: nil, user_properties: {})
      self.user_id = user_id
      self.device_id = device_id if device_id
      self.user_properties = user_properties
    end

    def user_id=(value)
      @user_id =
        if value.respond_to?(:id)
          value.id
        else
          value || AmplitudeAPI::USER_WITH_NO_ACCOUNT
        end
    end

    # @return [ Hash ] A serialized Event
    #
    # Used for serialization and comparison
    def to_hash
      {
        user_id: user_id,
        user_properties: user_properties
      }.tap { |hsh| hsh[:device_id] = device_id if device_id }
    end

    # @return [ true, false ]
    #
    # Compares +to_hash+ for equality
    def ==(other)
      if other.respond_to?(:to_hash)
        to_hash == other.to_hash
      else
        false
      end
    end
  end
end