module RedisAnalytics
  module Configuration
    # Redis connection instance
    attr_accessor :redis_connection

    # Redis namespace for keys
    attr_writer :redis_namespace

    # Name of the cookie which tracks first visitors
    attr_writer :first_visit_cookie_name

    # Name of the cookie which tracks current visits
    attr_writer :current_visit_cookie_name

    # Minutes the visit should timeout after (if no hit is received)
    attr_writer :visit_timeout

    # Endpoint for dashboard
    attr_writer :dashboard_endpoint

    # Endpoint for api
    attr_writer :api_endpoint

    attr_writer :path_filters

    attr_writer :filters

    # Path to the Geo IP Database file
    attr_writer :geo_ip_data_path

    # Redis namespace for keys
    def redis_namespace
      @redis_namespace ||= 'ra'
    end

    # Minutes the visit should timeout after (if no hit is received)
    def visit_timeout
      @visit_timeout ||= 30 # minutes
    end

    # Name of the cookie which tracks first visitors (unknown visitors)
    def first_visit_cookie_name
      @first_visit_cookie_name ||= '_rucn'
    end

    # Name of the cookie which tracks visits
    def current_visit_cookie_name
      @current_visit_cookie_name ||= '_vcn'
    end

    def filters
      @filters ||= []
    end

    def path_filters
      @path_filters ||= []
    end

    def add_filter(&proc)
      filters << RedisAnalytics::Filter.new(proc)
    end

    def add_path_filter(path)
      path_filters << RedisAnalytics::PathFilter.new(path)
    end

    def geo_ip_data_path
      @geo_ip_data_path = ::File.expand_path(::File.join(::File.dirname(__FILE__),'..','..')) + "/bin/GeoIP.dat"
    end

    def visitor_recency_slices
      @visitor_recency_slices ||= [1, 7, 30]
    end

    def default_range
      @default_range = :day
    end

    def redis_key_timestamps # [format, expire in seconds or nil]
      ['%Y', '%Y_%m', '%Y_%m_%d', '%Y_%m_%d_%H', '%Y_%m_%d_%H_%M']
    end

    def time_range_formats
      [[:year, :month, "%b"], [:week, :day, "%a"], [:day, :hour, "%l%P"]]
    end

    def configure
      yield self
    end

    def api_endpoint
      @api_endpoint || dashboard_endpoint + '/api'
    end

    def dashboard_endpoint
      @dashboard_endpoint || '/redis_analytics'
    end

  end
end