require 'fog/storm_on_demand'
require 'fog/compute'

module Fog
  module Compute
    class StormOnDemand < Fog::Service

      API_URL = 'https://api.stormondemand.com'
      API_VERSION = 'v1'

      requires :storm_on_demand_username, :storm_on_demand_password
      recognizes :storm_on_demand_auth_url

      model_path 'fog/storm_on_demand/models/compute'
      model       :config
      collection  :configs
      model       :image
      collection  :images
      model       :server
      collection  :servers
      model       :balancer
      collection  :balancers
      model       :network_ip
      collection  :network_ips
      model       :private_ip
      collection  :private_ips
      model       :firewall
      collection  :firewalls
      model       :ruleset
      collection  :rulesets
      model       :pool
      collection  :pools
      model       :zone
      collection  :zones
      model       :stat
      collection  :stats
      model       :template
      collection  :templates
      model       :product
      collection  :products
      model       :notification
      collection  :notifications

      request_path 'fog/storm_on_demand/requests/compute'
      request :clone_server
      request :delete_server
      request :reboot_server
      request :list_servers
      request :get_server
      request :create_server
      request :resize_server
      request :server_history
      request :shutdown_server
      request :start_server
      request :server_status
      request :update_server

      request :remove_balancer_node
      request :add_balancer_node
      request :add_balancer_service
      request :remove_balancer_service
      request :check_balancer_available
      request :create_balancer
      request :delete_balancer
      request :update_balancer
      request :get_balancer_details
      request :list_balancers
      request :get_balancer_possible_nodes
      request :get_balancer_strategies

      request :list_configs
      request :get_config_details

      request :list_templates
      request :get_template_details
      request :restore_template

      request :list_images
      request :create_image
      request :delete_image
      request :get_image_details
      request :update_image
      request :restore_image

      request :get_stats
      request :get_stats_graph
      
      request :list_private_ips
      request :get_private_ip
      request :attach_server_to_private_ip
      request :detach_server_from_private_ip
      request :check_server_attached

      request :add_ip_to_server
      request :get_ip_details
      request :list_network_ips
      request :list_ip_public_accounts
      request :list_network_public_ips
      request :remove_ip_from_server
      request :request_new_ips

      request :get_firewall
      request :get_firewall_basic_options
      request :get_firewall_rules
      request :update_firewall

      request :create_ruleset
      request :get_ruleset
      request :list_rulesets
      request :update_ruleset

      request :create_pool
      request :delete_pool
      request :get_pool
      request :get_assignments
      request :update_pool

      request :get_zone
      request :list_zones
      request :set_default_zone

      request :get_product
      request :get_product_code
      request :list_products
      request :get_product_price
      request :get_product_starting_price

      request :list_notifications
      request :current_notifications
      request :get_notification
      request :resolve_notification
      
      class Mock

        def self.data
          @data ||= Hash.new do |hash, key|
            hash[key] = {
              :last_modified => {
                :images  => {},
                :servers => {}
              },
              :images  => {},
              :servers => {}
            }
          end
        end

        def self.reset
          @data = nil
        end

        def self.reset_data(keys=data.keys)
          for key in [*keys]
            data.delete(key)
          end
        end

        def initialize(options={})
          @storm_on_demand_username = options[:storm_on_demand_username]
        end

        def data
          self.class.data[@storm_on_demand_username]
        end

        def reset_data
          self.class.data.delete(@storm_on_demand_username)
        end

      end

      class Real

        def initialize(options={})
          uri = URI.parse(options[:storm_on_demand_auth_url] ||= API_URL)
          @connection_options = options[:connection_options] || {}
          @host       = uri.host
          @path       = uri.path
          @persistent = options[:persistent] || false
          @port       = uri.port
          @scheme     = uri.scheme
          @storm_on_demand_username = options[:storm_on_demand_username]
          @storm_on_demand_password = options[:storm_on_demand_password]
          @connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}", @persistent, @connection_options)
        end

        def reload
          @connection.reset
        end

        def request(params)
          begin
            response = @connection.request(params.merge!({
              :headers  => {
                'Content-Type' => 'application/json',
                'Authorization' => 'Basic ' << Base64.encode64("#{@storm_on_demand_username}:#{@storm_on_demand_password}").chomp
              }.merge!(params[:headers] || {}),
              :host     => @host,
              :path     => "#{@path}/#{API_VERSION}#{params[:path]}",
              :expects  => 200,
              :method   => :post
            }))
          rescue Excon::Errors::HTTPStatusError => error
            raise case error
            when Excon::Errors::NotFound
              Fog::StormOnDemand::Compute::NotFound.slurp(error)
            else
              error
            end
          end
          unless response.body.empty?
            response.body = Fog::JSON.decode(response.body)
          end
          if response.body.has_key?('error_class')
            raise(Fog::Compute::StormOnDemand::Error, response.body.inspect)
          end
          response
        end

      end
    end
  end
end