# Generated by API Builder - https://www.apibuilder.io
# Service version: 1.0.0
# User agent: apibuilder app.apibuilder.io/teambytes/hipchat-sns-bridge/1.0.0/ruby_client

require 'cgi'
require 'net/http'
require 'net/https'
require 'uri'
require 'base64'

require 'date'
require 'rubygems'
require 'json'
require 'bigdecimal'

# Hipchat to Amazon SNS bridge.
module Com
  module Teambytes
    module Hipchat
      module Sns
        module Bridge
          module V1

            class Client

              module Constants

                BASE_URL = 'http://hipchat-sns-bridge.common.giltaws.com' unless defined?(Constants::BASE_URL)
                NAMESPACE = 'com.teambytes.hipchat.sns.bridge.v1' unless defined?(Constants::NAMESPACE)
                USER_AGENT = 'apibuilder app.apibuilder.io/teambytes/hipchat-sns-bridge/1.0.0/ruby_client' unless defined?(Constants::USER_AGENT)
                VERSION = '1.0.0' unless defined?(Constants::VERSION)
                VERSION_MAJOR = 1 unless defined?(VERSION_MAJOR)

              end

              attr_reader :url

              def initialize(url, opts={})
                @url = HttpClient::Preconditions.assert_class('url', url, String)
                @base_url = URI(url)
                @authorization = HttpClient::Preconditions.assert_class_or_nil('authorization', opts.delete(:authorization), HttpClient::Authorization)
                @default_headers = HttpClient::Preconditions.assert_class('default_headers', opts.delete(:default_headers) || {}, Hash)
                @http_handler = opts.delete(:http_handler) || HttpClient::DefaultHttpHandler.new

                HttpClient::Preconditions.assert_empty_opts(opts)
                HttpClient::Preconditions.check_state(url.match(/http.+/i), "URL[%s] must start with http" % url)
              end

              # Creates an instance of the client using the base url specified in the API spec.
              def Client.at_base_url(opts={})
                Client.new(Constants::BASE_URL, opts)
              end

              def request(path=nil)
                HttpClient::Preconditions.assert_class_or_nil('path', path, String)
                request = HttpClient::Request.new(@http_handler, @base_url, path.to_s).with_header('User-Agent', Constants::USER_AGENT).with_header('X-Apidoc-Version', Constants::VERSION).with_header('X-Apidoc-Version-Major', Constants::VERSION_MAJOR)

                @default_headers.each do |key, value|
                  request = request.with_header(key, value)
                end

                if @authorization
                  request = request.with_auth(@authorization)
                end

                request
              end

              def hipchat_capabilities_descriptors
                @hipchat_capabilities_descriptors ||= ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Clients::HipchatCapabilitiesDescriptors.new(self)
              end

              def hipchat_install_data
                @hipchat_install_data ||= ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Clients::HipchatInstallData.new(self)
              end

              def service_info
                @service_info ||= ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Clients::ServiceInfo.new(self)
              end

              def sns_notifications
                @sns_notifications ||= ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Clients::SnsNotifications.new(self)
              end
            end

            module Clients

              class HipchatCapabilitiesDescriptors

                def initialize(client)
                  @client = HttpClient::Preconditions.assert_class('client', client, ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Client)
                end

                def get(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  query = {
                    :redirect_to_hipchat_install => HttpClient::Preconditions.assert_boolean('redirect_to_hipchat_install', (x = opts.delete(:redirect_to_hipchat_install); x.nil? ? false : x))
                  }.delete_if { |k, v| v.nil? }
                  r = @client.request("/hipchat/capabilities").with_query(query).get
                  ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatCapabilitiesDescriptor.new(r)
                end

              end

              class HipchatInstallData

                def initialize(client)
                  @client = HttpClient::Preconditions.assert_class('client', client, ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Client)
                end

                def get(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  query = {
                    :installable_url => HttpClient::Preconditions.assert_class('installable_url', opts.delete(:installable_url), String),
                    :redirect_url => HttpClient::Preconditions.assert_class('redirect_url', opts.delete(:redirect_url), String)
                  }.delete_if { |k, v| v.nil? }
                  r = @client.request("/hipchat/installable").with_query(query).get
                  ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatCapabilitiesDescriptor.new(r)
                end

                def post(hipchat_install_data)
                  (x = hipchat_install_data; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatInstallData) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatInstallData.new(x))
                  r = @client.request("/hipchat/installable").with_json(hipchat_install_data.to_json).post
                  nil
                end

                def delete_by_oauth_id(oauth_id)
                  HttpClient::Preconditions.assert_class('oauth_id', oauth_id, String)
                  r = @client.request("/hipchat/installable/#{CGI.escape(oauth_id)}").delete
                  nil
                end

              end

              class ServiceInfo

                def initialize(client)
                  @client = HttpClient::Preconditions.assert_class('client', client, ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Client)
                end

                def get
                  r = @client.request("/info").get
                  ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::ServiceInfo.new(r)
                end

              end

              class SnsNotifications

                def initialize(client)
                  @client = HttpClient::Preconditions.assert_class('client', client, ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Client)
                end

                def post(room_id, sns_notification)
                  HttpClient::Preconditions.assert_class('room_id', room_id, String)
                  (x = sns_notification; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::SnsNotification) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::SnsNotification.new(x))
                  r = @client.request("/hipchat/room/#{CGI.escape(room_id)}/notification").with_json(sns_notification.to_json).post
                  r
                end

              end

            end

            module Models

              class HipchatScope

                attr_reader :value

                def initialize(value)
                  @value = HttpClient::Preconditions.assert_class('value', value, String)
                end

                # Returns the instance of HipchatScope for this value, creating a new instance for an unknown value
                def HipchatScope.apply(value)
                  if value.instance_of?(HipchatScope)
                    value
                  else
                    HttpClient::Preconditions.assert_class_or_nil('value', value, String)
                    value.nil? ? nil : (from_string(value) || HipchatScope.new(value))
                  end
                end

                # Returns the instance of HipchatScope for this value, or nil if not found
                def HipchatScope.from_string(value)
                  HttpClient::Preconditions.assert_class('value', value, String)
                  HipchatScope.ALL.find { |v| v.value == value }
                end

                def HipchatScope.ALL
                  @@all ||= [HipchatScope.send_message, HipchatScope.send_notification]
                end

                def HipchatScope.send_message
                  @@_send_message ||= HipchatScope.new('send_message')
                end

                def HipchatScope.send_notification
                  @@_send_notification ||= HipchatScope.new('send_notification')
                end

                def to_hash
                  value
                end

              end

              # A request semantic failure reason.
              class Error

                attr_reader :description

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:description], 'Error')
                  @description = HttpClient::Preconditions.assert_class('description', opts.delete(:description), String)
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  Error.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :description => description
                  }
                end

              end

              class HipchatApiConsumer

                attr_reader :scopes, :fromName

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:scopes], 'HipchatApiConsumer')
                  @scopes = HttpClient::Preconditions.assert_class('scopes', opts.delete(:scopes), Array).map { |v| (x = v; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatScope) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatScope.apply(x)) }
                  @fromName = (x = opts.delete(:fromName); x.nil? ? nil : HttpClient::Preconditions.assert_class('fromName', x, String))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatApiConsumer.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :scopes => scopes.map { |o| o.value },
                    :fromName => fromName
                  }
                end

              end

              class HipchatCapabilities

                attr_reader :configurable, :hipchatApiConsumer, :installable, :oauth2Provider

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  @configurable = (x = opts.delete(:configurable); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatConfigurationPage) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatConfigurationPage.new(x)))
                  @hipchatApiConsumer = (x = opts.delete(:hipchatApiConsumer); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatApiConsumer) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatApiConsumer.new(x)))
                  @installable = (x = opts.delete(:installable); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatInstallable) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatInstallable.new(x)))
                  @oauth2Provider = (x = opts.delete(:oauth2Provider); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatOauth2Provider) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatOauth2Provider.new(x)))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatCapabilities.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :configurable => configurable.nil? ? nil : configurable.to_hash,
                    :hipchatApiConsumer => hipchatApiConsumer.nil? ? nil : hipchatApiConsumer.to_hash,
                    :installable => installable.nil? ? nil : installable.to_hash,
                    :oauth2Provider => oauth2Provider.nil? ? nil : oauth2Provider.to_hash
                  }
                end

              end

              class HipchatCapabilitiesDescriptor

                attr_reader :name, :description, :key, :apiVersion, :capabilities, :links, :vendor

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:name, :description, :key, :links], 'HipchatCapabilitiesDescriptor')
                  @name = HttpClient::Preconditions.assert_class('name', opts.delete(:name), String)
                  @description = HttpClient::Preconditions.assert_class('description', opts.delete(:description), String)
                  @key = HttpClient::Preconditions.assert_class('key', opts.delete(:key), String)
                  @apiVersion = (x = opts.delete(:apiVersion); x.nil? ? nil : HttpClient::Preconditions.assert_class('apiVersion', x, String))
                  @capabilities = (x = opts.delete(:capabilities); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatCapabilities) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatCapabilities.new(x)))
                  @links = (x = opts.delete(:links); x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatLinks) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatLinks.new(x))
                  @vendor = (x = opts.delete(:vendor); x.nil? ? nil : (x = x; x.is_a?(::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatVendor) ? x : ::Com::Teambytes::Hipchat::Sns::Bridge::V1::Models::HipchatVendor.new(x)))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatCapabilitiesDescriptor.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :name => name,
                    :description => description,
                    :key => key,
                    :apiVersion => apiVersion,
                    :capabilities => capabilities.nil? ? nil : capabilities.to_hash,
                    :links => links.to_hash,
                    :vendor => vendor.nil? ? nil : vendor.to_hash
                  }
                end

              end

              class HipchatConfigurationPage

                attr_reader :allowAccessToRoomAdmins, :url

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:url], 'HipchatConfigurationPage')
                  @allowAccessToRoomAdmins = (x = opts.delete(:allowAccessToRoomAdmins); x.nil? ? nil : HttpClient::Preconditions.assert_class('allowAccessToRoomAdmins', x, String))
                  @url = HttpClient::Preconditions.assert_class('url', opts.delete(:url), String)
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatConfigurationPage.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :allowAccessToRoomAdmins => allowAccessToRoomAdmins,
                    :url => url
                  }
                end

              end

              class HipchatInstallData

                attr_reader :capabilitiesUrl, :oauthId, :oauthSecret, :groupId, :roomId

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:capabilitiesUrl, :oauthId, :oauthSecret, :groupId], 'HipchatInstallData')
                  @capabilitiesUrl = HttpClient::Preconditions.assert_class('capabilitiesUrl', opts.delete(:capabilitiesUrl), String)
                  @oauthId = HttpClient::Preconditions.assert_class('oauthId', opts.delete(:oauthId), String)
                  @oauthSecret = HttpClient::Preconditions.assert_class('oauthSecret', opts.delete(:oauthSecret), String)
                  @groupId = HttpClient::Preconditions.assert_class('groupId', opts.delete(:groupId), Integer)
                  @roomId = (x = opts.delete(:roomId); x.nil? ? nil : HttpClient::Preconditions.assert_class('roomId', x, String))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatInstallData.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :capabilitiesUrl => capabilitiesUrl,
                    :oauthId => oauthId,
                    :oauthSecret => oauthSecret,
                    :groupId => groupId,
                    :roomId => roomId
                  }
                end

              end

              class HipchatInstallable

                attr_reader :callbackUrl, :installedUrl, :allowGlobal, :allowRoom

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  @callbackUrl = (x = opts.delete(:callbackUrl); x.nil? ? nil : HttpClient::Preconditions.assert_class('callbackUrl', x, String))
                  @installedUrl = (x = opts.delete(:installedUrl); x.nil? ? nil : HttpClient::Preconditions.assert_class('installedUrl', x, String))
                  @allowGlobal = (x = opts.delete(:allowGlobal); x.nil? ? nil : HttpClient::Preconditions.assert_boolean('allowGlobal', x))
                  @allowRoom = (x = opts.delete(:allowRoom); x.nil? ? nil : HttpClient::Preconditions.assert_boolean('allowRoom', x))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatInstallable.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :callbackUrl => callbackUrl,
                    :installedUrl => installedUrl,
                    :allowGlobal => allowGlobal,
                    :allowRoom => allowRoom
                  }
                end

              end

              class HipchatLinks

                attr_reader :homepage, :api, :self

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:self], 'HipchatLinks')
                  @homepage = (x = opts.delete(:homepage); x.nil? ? nil : HttpClient::Preconditions.assert_class('homepage', x, String))
                  @api = (x = opts.delete(:api); x.nil? ? nil : HttpClient::Preconditions.assert_class('api', x, String))
                  @self = HttpClient::Preconditions.assert_class('self', opts.delete(:self), String)
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatLinks.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :homepage => homepage,
                    :api => api,
                    :self => self
                  }
                end

              end

              class HipchatOauth2Provider

                attr_reader :tokenUrl, :authorizationUrl

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  @tokenUrl = (x = opts.delete(:tokenUrl); x.nil? ? nil : HttpClient::Preconditions.assert_class('tokenUrl', x, String))
                  @authorizationUrl = (x = opts.delete(:authorizationUrl); x.nil? ? nil : HttpClient::Preconditions.assert_class('authorizationUrl', x, String))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatOauth2Provider.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :tokenUrl => tokenUrl,
                    :authorizationUrl => authorizationUrl
                  }
                end

              end

              class HipchatVendor

                attr_reader :name, :url

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:name, :url], 'HipchatVendor')
                  @name = HttpClient::Preconditions.assert_class('name', opts.delete(:name), String)
                  @url = HttpClient::Preconditions.assert_class('url', opts.delete(:url), String)
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  HipchatVendor.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :name => name,
                    :url => url
                  }
                end

              end

              class ServiceInfo

                attr_reader :name, :version, :scala_version, :sbt_version, :build_time

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:name, :version, :scala_version, :sbt_version, :build_time], 'ServiceInfo')
                  @name = HttpClient::Preconditions.assert_class('name', opts.delete(:name), String)
                  @version = HttpClient::Preconditions.assert_class('version', opts.delete(:version), String)
                  @scala_version = HttpClient::Preconditions.assert_class('scala_version', opts.delete(:scala_version), String)
                  @sbt_version = HttpClient::Preconditions.assert_class('sbt_version', opts.delete(:sbt_version), String)
                  @build_time = HttpClient::Preconditions.assert_class('build_time', HttpClient::Helper.to_date_time_iso8601(opts.delete(:build_time)), DateTime)
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  ServiceInfo.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :name => name,
                    :version => version,
                    :scala_version => scala_version,
                    :sbt_version => sbt_version,
                    :build_time => build_time
                  }
                end

              end

              class SnsNotification

                attr_reader :Type, :MessageId, :TopicArn, :Message, :Timestamp, :SignatureVersion, :Signature, :SigningCertURL, :Token, :Subject, :SubscribeURL, :UnsubscribeURL

                def initialize(incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  HttpClient::Preconditions.require_keys(opts, [:Type, :MessageId, :TopicArn, :Message, :Timestamp, :SignatureVersion, :Signature, :SigningCertURL], 'SnsNotification')
                  @Type = HttpClient::Preconditions.assert_class('Type', opts.delete(:Type), String)
                  @MessageId = HttpClient::Preconditions.assert_class('MessageId', opts.delete(:MessageId), String)
                  @TopicArn = HttpClient::Preconditions.assert_class('TopicArn', opts.delete(:TopicArn), String)
                  @Message = HttpClient::Preconditions.assert_class('Message', opts.delete(:Message), String)
                  @Timestamp = HttpClient::Preconditions.assert_class('Timestamp', opts.delete(:Timestamp), String)
                  @SignatureVersion = HttpClient::Preconditions.assert_class('SignatureVersion', opts.delete(:SignatureVersion), String)
                  @Signature = HttpClient::Preconditions.assert_class('Signature', opts.delete(:Signature), String)
                  @SigningCertURL = HttpClient::Preconditions.assert_class('SigningCertURL', opts.delete(:SigningCertURL), String)
                  @Token = (x = opts.delete(:Token); x.nil? ? nil : HttpClient::Preconditions.assert_class('Token', x, String))
                  @Subject = (x = opts.delete(:Subject); x.nil? ? nil : HttpClient::Preconditions.assert_class('Subject', x, String))
                  @SubscribeURL = (x = opts.delete(:SubscribeURL); x.nil? ? nil : HttpClient::Preconditions.assert_class('SubscribeURL', x, String))
                  @UnsubscribeURL = (x = opts.delete(:UnsubscribeURL); x.nil? ? nil : HttpClient::Preconditions.assert_class('UnsubscribeURL', x, String))
                end

                def to_json
                  JSON.dump(to_hash)
                end

                def copy(incoming={})
                  SnsNotification.new(to_hash.merge(HttpClient::Helper.symbolize_keys(incoming)))
                end

                def to_hash
                  {
                    :Type => Type,
                    :MessageId => MessageId,
                    :TopicArn => TopicArn,
                    :Message => Message,
                    :Timestamp => Timestamp,
                    :SignatureVersion => SignatureVersion,
                    :Signature => Signature,
                    :SigningCertURL => SigningCertURL,
                    :Token => Token,
                    :Subject => Subject,
                    :SubscribeURL => SubscribeURL,
                    :UnsubscribeURL => UnsubscribeURL
                  }
                end

              end

            end

            # ===== END OF SERVICE DEFINITION =====
            module HttpClient

              class HttpHandler

                # Returns a client instance to use
                #
                # @param base_uri The base URI for this API
                # @param path the Requested full http path (including any query strings)
                def instance(base_uri, path)
                  raise "Override in subclass"
                end

              end

              class HttpHandlerInstance

                # Executes a request. The provided request object will be an
                # instance of Net::HTTP (e.g. Net::HTTP::Get)
                def execute(request)
                  raise "Override in subclass"
                end

              end

              class DefaultHttpHandler < HttpHandler

                def instance(base_uri, path)
                  DefaultHttpHandlerInstance.new(base_uri)
                end

              end

              class DefaultHttpHandlerInstance < HttpHandlerInstance

                attr_reader :client

                def initialize(base_uri)
                  @base_uri = Preconditions.assert_class('base_uri', base_uri, URI)
                  @client = Net::HTTP.new(@base_uri.host, @base_uri.port)
                  if @base_uri.scheme == "https"
                    configure_ssl
                  end
                end

                def execute(request)
                  response = begin
                               @client.request(request)
                             rescue SocketError => e
                               raise StandardError.new("Error accessing uri[#{full_uri(request.path)}]: #{e}")
                             end

                  case response
                  when Net::HTTPSuccess
                    response.body
                  else
                    body = response.body rescue nil
                    raise HttpClient::ServerError.new(response.code.to_i, response.message, :body => body, :uri => full_uri(request.path).to_s)
                  end
                end

                def full_uri(path)
                  path.start_with?(@base_uri.to_s) ? path : File.join(@base_uri.to_s, path)
                end

                # Called to configure SSL if the base uri requires it
                def configure_ssl
                  @client.use_ssl = true
                  @client.verify_mode = OpenSSL::SSL::VERIFY_PEER
                  @client.cert_store = OpenSSL::X509::Store.new
                  @client.cert_store.set_default_paths
                end

              end

              class Request

                attr_reader :base_uri, :path, :full_uri

                def initialize(http_handler, base_uri, path)
                  @http_handler = http_handler
                  @base_uri = Preconditions.assert_class('base_uri', base_uri, URI)
                  @path = Preconditions.assert_class('path', path, String)
                  @full_uri = @base_uri.to_s + @path
                  @params = nil
                  @body = nil
                  @auth = nil
                  @headers = {}
                  @header_keys_lower_case = []
                end

                def with_header(name, value)
                  Preconditions.check_not_blank('name', name, "Header name is required")
                  Preconditions.check_not_blank('value', value, "Header value is required")
                  Preconditions.check_state(!@headers.has_key?(name),
                                            "Duplicate header named[%s]" % name)
                  @headers[name] = value
                  @header_keys_lower_case << name.downcase
                  self
                end

                def with_auth(auth)
                  Preconditions.assert_class('auth', auth, HttpClient::Authorization)
                  Preconditions.check_state(@auth.nil?, "auth previously set")

                  if auth.scheme.name == AuthScheme::BASIC.name
                    @auth = auth
                  else
                    raise "Auth Scheme[#{auth.scheme.name}] not supported"
                  end
                  self
                end

                def with_query(params)
                  Preconditions.assert_class('params', params, Hash)
                  Preconditions.check_state(@params.nil?, "Already have query parameters")
                  @params = params
                  self
                end

                # Wrapper to set Content-Type header to application/json and set
                # the provided json document as the body
                def with_json(json)
                  @headers['Content-Type'] ||= 'application/json; charset=UTF-8'
                  with_body(json)
                end

                def with_body(body)
                  Preconditions.check_not_blank('body', body)
                  @body = body
                  self
                end

                def get(&block)
                  do_request(Net::HTTP::Get, &block)
                end

                def delete(&block)
                  do_request(Net::HTTP::Delete, &block)
                end

                def options(&block)
                  do_request(Net::HTTP::Options, &block)
                end

                def post(&block)
                  do_request(Net::HTTP::Post, &block)
                end

                def put(&block)
                  do_request(Net::HTTP::Put, &block)
                end

                class PATCH < Net::HTTP::Put
                  METHOD = "PATCH"
                end

                def patch(&block)
                  do_request(PATCH, &block)
                end

                def do_request(klass)
                  Preconditions.assert_class('klass', klass, Class)

                  uri = @full_uri.dup
                  if q = to_query(@params)
                    uri += "?%s" % q
                  end

                  request = klass.send(:new, uri)

                  # DEBUG curl = ['curl']
                  # DEBUG if klass != Net::HTTP::Get
                  # DEBUG  curl << "-X%s" % klass.name.split("::").last.upcase
                  # DEBUG end

                  if @body
                    # DEBUG tmpfile = "/tmp/rest_client.tmp"
                    # DEBUG File.open(tmpfile, "w") { |os| os << @body.to_s }
                    # DEBUG curl << "-d@%s" % tmpfile
                    request.body = @body
                  end

                  if @auth
                    # DEBUG curl << "-u \"%s:%s\"" % [@auth.username, @auth.password]
                    Preconditions.check_state(!@header_keys_lower_case.include?("authorization"),
                                              "Cannot specify both an Authorization header and an auth instance")
                    user_pass = "%s:%s" % [@auth.username, @auth.password]
                    encoded = Base64.encode64(user_pass).to_s.split("\n").map(&:strip).join
                    request.add_field("Authorization", "Basic %s" % encoded)
                  end

                  @headers.each { |key, value|
                    # DEBUG curl <<  "-H \"%s: %s\"" % [key, value]
                    request.add_field(key, value)
                  }

                  # DEBUG curl << "'%s%s'" % [@base_uri, path]
                  # DEBUG puts curl.join(" ")

                  raw_response = @http_handler.instance(@base_uri, request.path).execute(request)
                  response = raw_response.to_s == "" ? nil : JSON.parse(raw_response)

                  if block_given?
                    yield response
                  else
                    response
                  end
                end

                private
                def to_query(params={})
                  parts = (params || {}).map { |k,v|
                    if v.is_a?(Enumerable)
                      v.map { |el| "%s=%s" % [k, CGI.escape(el.to_s)] }
                    else
                      "%s=%s" % [k, CGI.escape(v.to_s)]
                    end
                  }
                  parts.empty? ? nil : parts.join("&")
                end

              end

              class ServerError < StandardError

                attr_reader :code, :details, :body, :uri

                def initialize(code, details, incoming={})
                  opts = HttpClient::Helper.symbolize_keys(incoming)
                  @code = HttpClient::Preconditions.assert_class('code', code, Integer)
                  @details = HttpClient::Preconditions.assert_class('details', details, String)
                  @body = HttpClient::Preconditions.assert_class_or_nil('body', opts.delete(:body), String)
                  @uri = HttpClient::Preconditions.assert_class_or_nil('uri', opts.delete(:uri), String)
                  HttpClient::Preconditions.assert_empty_opts(opts)
                  super(self.message)
                end

                def message
                  m = "%s %s" % [@code, @details]
                  if @body
                    m << ": %s" % @body
                  end
                  m
                end

                def body_json
                  @body ? JSON.parse(@body) : nil
                end

              end

              class PreconditionException < StandardError

                attr_reader :message

                def initialize(message)
                  super(message)
                  @message = message
                end

              end

              module Preconditions

                def Preconditions.check_argument(expression, error_message=nil)
                  if !expression
                    raise PreconditionException.new(error_message || "check_argument failed")
                  end
                  nil
                end

                def Preconditions.check_state(expression, error_message=nil)
                  if !expression
                    raise PreconditionException.new(error_message || "check_state failed")
                  end
                  nil
                end

                def Preconditions.check_not_nil(field_name, reference, error_message=nil)
                  if reference.nil?
                    raise PreconditionException.new(error_message || "argument for %s cannot be nil" % field_name)
                  end
                  reference
                end

                def Preconditions.check_not_blank(field_name, reference, error_message=nil)
                  if reference.to_s.strip == ""
                    raise PreconditionException.new(error_message || "argument for %s cannot be blank" % field_name)
                  end
                  reference
                end

                # Throws an error if opts is not empty. Useful when parsing
                # arguments to a function
                def Preconditions.assert_empty_opts(opts)
                  if !opts.empty?
                    raise PreconditionException.new("Invalid opts: #{opts.keys.inspect}\n#{opts.inspect}")
                  end
                end

                # Requires that the provided hash has the specified keys.
                # @param fields A list of symbols
                def Preconditions.require_keys(hash, fields, error_prefix=nil)
                  missing = fields.select { |f| !hash.has_key?(f) }
                  if !missing.empty?
                    msg = "Missing required fields: " + missing.join(", ")
                    raise PreconditionException.new(error_prefix.empty? ? msg : "#{error_prefix}: #{msg}")
                  end
                end

                # Asserts that value is not nill and is_?(klass). Returns
                # value. Common use is
                #
                # amount = Preconditions.assert_class('amount', amount, BigDecimal)
                def Preconditions.assert_class(field_name, value, klass)
                  Preconditions.check_not_nil('field_name', field_name)
                  Preconditions.check_not_nil('klass', klass)
                  Preconditions.check_not_nil('value', value, "Value for %s cannot be nil. Expected an instance of class %s" % [field_name, klass.name])
                  Preconditions.check_state(value.is_a?(klass),
                                            "Value for #{field_name} is of type[#{value.class}] - class[#{klass}] is required. value[#{value.inspect.to_s}]")
                  value
                end

                def Preconditions.assert_class_or_nil(field_name, value, klass)
                  if !value.nil?
                    Preconditions.assert_class(field_name, value, klass)
                  end
                end

                def Preconditions.assert_boolean(field_name, value)
                  Preconditions.check_not_nil('field_name', field_name)
                  Preconditions.check_not_nil('value', value, "Value for %s cannot be nil. Expected an instance of TrueClass or FalseClass" % field_name)
                  Preconditions.check_state(value.is_a?(TrueClass) || value.is_a?(FalseClass),
                                            "Value for #{field_name} is of type[#{value.class}] - class[TrueClass or FalseClass] is required. value[#{value.inspect.to_s}]")
                  value
                end

                def Preconditions.assert_boolean_or_nil(field_name, value)
                  if !value.nil?
                    Preconditions.assert_boolean(field_name, value)
                  end
                end

                def Preconditions.assert_collection_of_class(field_name, values, klass)
                  Preconditions.assert_class(field_name, values, Array)
                  values.each { |v| Preconditions.assert_class(field_name, v, klass) }
                end

                def Preconditions.assert_hash_of_class(field_name, hash, klass)
                  Preconditions.assert_class(field_name, hash, Hash)
                  values.each { |k, v| Preconditions.assert_class(field_name, v, klass) }
                end

              end

              class AuthScheme

                attr_reader :name

                def initialize(name)
                  @name = HttpClient::Preconditions.check_not_blank('name', name)
                end

                BASIC = AuthScheme.new("basic") unless defined?(BASIC)

              end

              class Authorization

                attr_reader :scheme, :username, :password

                def initialize(scheme, username, opts={})
                  @scheme = HttpClient::Preconditions.assert_class('schema', scheme, AuthScheme)
                  @username = HttpClient::Preconditions.check_not_blank('username', username, "username is required")
                  @password = HttpClient::Preconditions.assert_class_or_nil('password', opts.delete(:password), String)
                  HttpClient::Preconditions.assert_empty_opts(opts)
                end

                def Authorization.basic(username, password=nil)
                  Authorization.new(AuthScheme::BASIC, username, :password => password)
                end

              end

              module Helper

                def Helper.symbolize_keys(hash)
                  Preconditions.assert_class('hash', hash, Hash)
                  new_hash = {}
                  hash.each { |k, v|
                    new_hash[k.to_sym] = v
                  }
                  new_hash
                end

                def Helper.to_big_decimal(value)
                  value ? BigDecimal(value.to_s) : nil
                end

                def Helper.to_object(value)
                  value ? (value.is_a?(Hash) ? value : JSON.parse(value)) : nil
                end

                def Helper.to_uuid(value)
                  Preconditions.check_state(value.nil? || value.match(/^\w\w\w\w\w\w\w\w\-\w\w\w\w\-\w\w\w\w\-\w\w\w\w\-\w\w\w\w\w\w\w\w\w\w\w\w$/),
                                            "Invalid guid[%s]" % value)
                  value
                end

                def Helper.to_date_iso8601(value)
                  if value.is_a?(Date)
                    value
                  elsif value
                    Date.parse(value.to_s)
                  else
                    nil
                  end
                end

                def Helper.to_date_time_iso8601(value)
                  if value.is_a?(DateTime)
                    value
                  elsif value
                    DateTime.parse(value.to_s)
                  else
                    nil
                  end
                end

                def Helper.date_iso8601_to_string(value)
                  value.nil? ? nil : value.strftime('%Y-%m-%d')
                end

                def Helper.date_time_iso8601_to_string(value)
                  value.nil? ? nil : value.strftime('%Y-%m-%dT%H:%M:%S%z')
                end

                TRUE_STRINGS = ['t', 'true', 'y', 'yes', 'on', '1', 'trueclass'] unless defined?(TRUE_STRINGS)
                FALSE_STRINGS = ['f', 'false', 'n', 'no', 'off', '0', 'falseclass'] unless defined?(FALSE_STRINGS)

                def Helper.to_boolean(field_name, value)
                  string = value.to_s.strip.downcase
                  if TRUE_STRINGS.include?(string)
                    true
                  elsif FALSE_STRINGS.include?(string)
                    false
                  elsif string != ""
                    raise PreconditionException.new("Unsupported boolean value[#{string}]. For true, must be one of: #{TRUE_STRINGS.inspect}. For false, must be one of: #{FALSE_STRINGS.inspect}")
                  else
                    nil
                  end
                end

              end

            end
          end
        end
      end
    end
  end
end