module Exvo

  # CFS

  def self.cfs_uri
    "http://#{cfs_host}"
  end

  def self.cfs_host
    @@cfs_host ||= ENV['CFS_HOST'] || default_opts[env.to_sym][:cfs_host]
  end

  def self.cfs_host=(host)
    @@cfs_host = host
  end


  # DESKTOP

  def self.desktop_uri
    "http://#{desktop_host}"
  end

  def self.desktop_host
    @@desktop_host ||= ENV['DESKTOP_HOST'] || default_opts[env.to_sym][:desktop_host]
  end

  def self.desktop_host=(host)
    @@desktop_host = host
  end


  # THEMES

  def self.themes_uri
    "http://#{themes_host}"
  end

  def self.themes_host
    @@themes_host ||= ENV['THEMES_HOST'] || default_opts[env.to_sym][:themes_host]
  end

  def self.themes_host=(host)
    @@themes_host = host
  end


  # AUTH

  # pass-in to the ExvoAuth gem
  def self.auth_uri
    if defined?(ExvoAuth::Config) and ExvoAuth::Config.respond_to?('uri')
      ExvoAuth::Config.uri
    else
      raise "Exvo.auth_uri method is available only when exvo-auth gem is available"
    end
  end

  def self.auth_host
    if defined?(ExvoAuth::Config) and ExvoAuth::Config.respond_to?('host')
      ExvoAuth::Config.host
    else
      raise "Exvo.auth_host method is available only when exvo-auth gem is available"
    end
  end


  # ENV

  def self.env
    @@env ||= Rails.env if defined?(Rails)
    @@env ||= Merb.env if defined?(Merb)
    @@env
  end

  def self.env=(env)
    @@env = env
  end


  private

  def self.default_opts
    {
      :production => {
        :cfs_host => 'cfs.exvo.com',
        :desktop_host => 'www.exvo.com',
        :themes_host => 'themes.exvo.com'
      },
      :staging => {
        :cfs_host => 'staging.cfs.exvo.com',
        :desktop_host => 'www.exvo.co',
        :themes_host => 'staging.themes.exvo.com'
      },
      :development => {
        :cfs_host => 'cfs.exvo.local',
        :desktop_host => 'www.exvo.local',
        :themes_host => 'themes.exvo.local'
      },
      :test => {
        :cfs_host => 'cfs.exvo.local',
        :desktop_host => 'www.exvo.local',
        :themes_host => 'themes.exvo.local'
      }
    }
  end
end