Noosfero/noosfero

require_dependency "api/helpers"

module Api
  class App < Grape::API::Instance
    logger = Logger.new(File.join(Rails.root, "log", "#{ENV['RAILS_ENV'] || 'production'}_api.log"))
    logger.formatter = GrapeLogging::Formatters::Default.new

    rescue_from :all do |e|
      logger.error e
      error! e.message, 500
    end unless Rails.env.test?

    @@NOOSFERO_CONF = nil
    def self.NOOSFERO_CONF
      if @@NOOSFERO_CONF
        @@NOOSFERO_CONF
      else
        file = Rails.root.join("config", "noosfero.yml")
        @@NOOSFERO_CONF = File.exists?(file) ? YAML.load_file(file)[Rails.env] || {} : {}
      end
    end

    before { set_locale }
    before { setup_multitenancy }
    before { detect_stuff_by_domain }
    before { set_current_user }
    before { filter_disabled_plugins_endpoints }
    before { init_noosfero_plugins }
    after { set_session_cookie }

    version "v1"
    format :json
    content_type :txt, "text/plain"

    helpers Helpers

    mount V1::Session
    mount V1::Articles
    mount V1::Comments
    mount V1::Users
    mount V1::Communities
    mount V1::People
    mount V1::Enterprises
    mount V1::Categories
    mount V1::Tasks
    mount V1::Tags
    mount V1::Environments
    mount V1::Boxes
    mount V1::Blocks
    mount V1::Profiles
    mount V1::Activities
    mount V1::Roles
    mount V1::Domains
    mount V1::Settings
    mount V1::Scraps
    mount V1::UploadedFiles

    # hook point which allow plugins to add Grape::API extensions to Api::App
    # finds for plugins which has api mount points classes defined (the class should extends Grape::API)
    @plugins = Noosfero::Plugin.all.map { |p| p.constantize if Object.const_defined?(p) }.compact
    @plugins.each do |klass|
      if klass.public_methods.include? :api_mount_points
        klass.api_mount_points.each do |mount_class|
          mount mount_class if mount_class && (mount_class < Grape::API::Instance)
        end
      end
    end

    def self.endpoint_unavailable?(endpoint, environment)
      api_class = endpoint.options[:app] || endpoint.options[:for]
      if api_class.present?
        klass = api_class.name.deconstantize.constantize
        return klass < Noosfero::Plugin && !environment.plugin_enabled?(klass)
      end
    end

    class << self
      def endpoints_with_plugins(environment = nil)
        if environment.present?
          cloned_endpoints = endpoints_without_plugins.dup
          cloned_endpoints.delete_if { |endpoint| endpoint_unavailable?(endpoint, environment) }
        else
          endpoints_without_plugins
        end
      end
      alias_method :endpoints_without_plugins, :endpoints
      alias_method :endpoints, :endpoints_with_plugins
    end
  end
end