module Pheme
  class << self
    attr_writer :configuration
  end

  def self.configuration
    @configuration ||= Configuration.new
  end

  def self.configure
    yield(configuration)
  end

  def self.reset_configuration!
    @configuration = Configuration.new
  end

  class Configuration
    ATTRIBUTES = %i[sns_client sqs_client logger].freeze
    OPTIONAL_ATTRIBUTES = %i[error_reporting_func].freeze
    DEPRECATED_ATTRIBUTES = %i[rollbar].freeze

    attr_accessor(*ATTRIBUTES, *OPTIONAL_ATTRIBUTES, *DEPRECATED_ATTRIBUTES)

    def initialize
      @logger ||= Logger.new($stdout) # rubocop:disable Lint/DisjunctiveAssignmentInConstructor
      @logger = ActiveSupport::TaggedLogging.new(@logger) unless @logger.respond_to?(:tagged)
    end

    def validate!
      ATTRIBUTES.each do |attribute|
        raise "Invalid or missing configuration for #{attribute}" if send(attribute).blank?
      end
      raise "sns_client must be a Aws::SNS::Client" unless sns_client.is_a?(Aws::SNS::Client)
      raise "sns_client must be a Aws::SQS::Client" unless sqs_client.is_a?(Aws::SQS::Client)

      if respond_to?(:rollbar)
        @logger.warn("config.rollbar is deprecated. Please use config.error_reporting_func instead.")
      end
    end
  end
end