initial commit, using daniel's code with spree extension generator

Gemfile

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+source 'http://rubygems.org'
+
+gemspec

LICENSE

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+Copyright (c) 2012 [name of plugin creator]
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Spree nor the names of its contributors may be used to
+      endorse or promote products derived from this software without specific
+      prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Rakefile

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+require 'bundler'
+Bundler::GemHelper.install_tasks
+
+require 'rspec/core/rake_task'
+require 'spree/core/testing_support/common_rake'
+
+RSpec::Core::RakeTask.new
+
+task :default => [:spec]
+
+desc 'Generates a dummy app for testing'
+task :test_app do
+  ENV['LIB_NAME'] = 'spree_avatax'
+  Rake::Task['common:test_app'].invoke
+end

Versionfile

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+# This file is used to designate compatibilty with different versions of Spree
+# Please see http://spreecommerce.com/documentation/extensions.html#versionfile for details
+
+# Examples
+#
+# '1.2.x'  => { :branch => 'master' }
+# '1.1.x'  => { :branch => '1-1-stable' }
+# '1.0.x'  => { :branch => '1-0-stable' }
+# '0.70.x' => { :branch => '0-70-stable' }
+# '0.40.x' => { :tag => 'v1.0.0', :version => '1.0.0' }
+

app/assets/javascripts/admin/spree_avatax.js

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+//= require admin/spree_core

app/assets/javascripts/store/spree_avatax.js

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+//= require store/spree_core

app/assets/stylesheets/admin/spree_avatax.css

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+/*
+ *= require admin/spree_core
+*/

app/assets/stylesheets/store/spree_avatax.css

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+/*
+ *= require store/spree_core
+*/

app/avalara/avalara_tax_rate.rb

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+module Avalara
+  class AvalaraTaxRate < Spree::TaxRate
+    # Creates necessary tax adjustments for the order.
+    after_initialize :init
+    def init
+      self.name="AvaTax"
+    end
+
+
+
+    def adjust(order, response)
+      order.adjustments.create({:amount => response.total_tax,
+                                :source => self,
+                                :originator => self,
+                                :locked => true,
+                                :label => "Sales Tax"}, :without_protection => true)
+    end
+  end
+
+end

app/spree/line_item_decorator.rb

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+Spree::LineItem.class_eval do
+
+
+
+
+  def update_order
+    order.create_tax_charge!
+    order.update!
+  end
+
+
+end

app/spree/order_decorator.rb

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+Spree::Order.class_eval do
+
+
+  # Finalizes an in progress order after checkout is complete.
+  # Called after transition to complete state when payments will have been processed
+  def finalize!
+    touch :completed_at
+    Spree::InventoryUnit.assign_opening_inventory(self)
+    # lock any optional adjustments (coupon promotions, etc.)
+    adjustments.optional.each { |adjustment| adjustment.update_column('locked', true) }
+    deliver_order_confirmation_email
+    response=post_order_to_avalara(true)
+
+    self.state_changes.create({
+                                  :previous_state => 'cart',
+                                  :next_state     => 'complete',
+                                  :name           => 'order' ,
+                                  :user_id        => self.user_id
+                              }, :without_protection => true)
+  end
+
+
+  def update_adjustments
+    #create_tax_charge!
+    self.adjustments.reload.each { |adjustment| adjustment.update!(self) }
+  end
+
+
+  def create_tax_charge!
+    self.clear_adjustments!
+    #create tax estimate and required adjustments.
+    #commit =false, do not create transaction on Avalara side.
+
+    #only relevant if we have a billing address
+    if self.billing_address != nil
+      response=post_order_to_avalara
+      create_avalara_tax_adjustments(response)
+    end
+  end
+
+
+  private
+  def post_order_to_avalara(commit=false)
+
+
+    #Create array for line items
+    tax_line_items=Array.new
+
+    self.line_items.each_with_index do |line_item, i|
+      line_item_total=line_item.price*line_item.quantity
+      line=Avalara::Request::Line.new(:line_no => i, :origin_code => 1, :destination_code => 1, :qty => line_item.quantity, :amount => line_item_total)
+      tax_line_items<<line
+    end
+
+    #Billing Address
+    address=Avalara::Request::Address.new(:address_code => 1)
+    address.line_1=self.billing_address.address1
+    address.postal_code=self.billing_address.zipcode
+
+    addresses=Array.new
+    addresses<<address
+
+    invoice=Avalara::Request::Invoice.new
+    invoice.doc_code=self.number
+    invoice.customer_code="TheRealReal"
+    invoice.addresses=addresses
+    invoice.lines=tax_line_items
+    #A record is created when commit is true + doc_type is SalesInvoice
+    if commit
+      invoice.commit=true
+      invoice.doc_type="SalesInvoice"
+    end
+    response=Avalara.get_tax(invoice)
+    response
+  end
+
+
+  #def create_avalara_tax_adjustments(tax_lines)
+  #  puts "TAX LINE"
+  #  #Spree::TaxRate.adjust(self)
+  #  tax_lines.each { |tax_line|
+  #    puts tax_line.tax_details.each { |tax_detail|
+  #      self.adjustments.create({:amount => tax_detail.tax,
+  #                               :source => self,
+  #                               :originator => Spree::TaxRate.first,
+  #                               :locked => true,
+  #                               :label => tax_detail.tax_name}, :without_protection => true)
+  #    }
+  #  }
+  #end
+
+
+  def create_avalara_tax_adjustments(response)
+    puts "Creating tax adjustment"
+    #Spree::TaxRate.adjust(self)
+    self.adjustments.create({:amount => response.total_tax,
+                             :source => self,
+                             :originator => Spree::TaxRate.first,
+                             :locked => true,
+                             :label => "Sales Tax"}, :without_protection => true)
+  end
+
+
+end

config/locales/en.yml

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+# Sample localization file for English. Add more files in this directory for other locales.
+# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
+
+en:
+  hello: "Hello world"

config/routes.rb

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+Spree::Core::Engine.routes.draw do
+  # Add your extension routes here
+end

lib/generators/spree_avatax/install/install_generator.rb

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+module SpreeAvatax
+  module Generators
+    class InstallGenerator < Rails::Generators::Base
+
+      def add_javascripts
+        append_file 'app/assets/javascripts/store/all.js', "//= require store/spree_avatax\n"
+        append_file 'app/assets/javascripts/admin/all.js', "//= require admin/spree_avatax\n"
+      end
+
+      def add_stylesheets
+        inject_into_file 'app/assets/stylesheets/store/all.css', " *= require store/spree_avatax\n", :before => /\*\//, :verbose => true
+        inject_into_file 'app/assets/stylesheets/admin/all.css', " *= require admin/spree_avatax\n", :before => /\*\//, :verbose => true
+      end
+
+      def add_migrations
+        run 'bundle exec rake railties:install:migrations FROM=spree_avatax'
+      end
+
+      def run_migrations
+         res = ask 'Would you like to run the migrations now? [Y/n]'
+         if res == '' || res.downcase == 'y'
+           run 'bundle exec rake db:migrate'
+         else
+           puts 'Skipping rake db:migrate, don\'t forget to run it!'
+         end
+      end
+    end
+  end
+end

lib/spree_avatax.rb

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+require 'spree_core'
+require 'spree_avatax/engine'

lib/spree_avatax/engine.rb

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+module SpreeAvatax
+  class Engine < Rails::Engine
+    require 'spree/core'
+    isolate_namespace Spree
+    engine_name 'spree_avatax'
+
+    config.autoload_paths += %W(#{config.root}/lib)
+
+    # use rspec for tests
+    config.generators do |g|
+      g.test_framework :rspec
+    end
+
+    def self.activate
+      Dir.glob(File.join(File.dirname(__FILE__), '../../app/**/*_decorator*.rb')) do |c|
+        Rails.configuration.cache_classes ? require(c) : load(c)
+      end
+    end
+
+    config.to_prepare &method(:activate).to_proc
+  end
+end

script/rails

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+# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
+
+ENGINE_ROOT = File.expand_path('../..', __FILE__)
+ENGINE_PATH = File.expand_path('../../lib/spree_avatax/engine', __FILE__)
+
+require 'rails/all'
+require 'rails/engine/commands'

spec/spec_helper.rb

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+# Configure Rails Environment
+ENV['RAILS_ENV'] = 'test'
+
+require File.expand_path('../dummy/config/environment.rb',  __FILE__)
+
+require 'rspec/rails'
+require 'ffaker'
+
+# Requires supporting ruby files with custom matchers and macros, etc,
+# in spec/support/ and its subdirectories.
+Dir[File.join(File.dirname(__FILE__), 'support/**/*.rb')].each { |f| require f }
+
+# Requires factories defined in spree_core
+require 'spree/core/testing_support/factories'
+require 'spree/core/url_helpers'
+
+RSpec.configure do |config|
+  config.include FactoryGirl::Syntax::Methods
+
+  # == URL Helpers
+  #
+  # Allows access to Spree's routes in specs:
+  #
+  # visit spree.admin_path
+  # current_path.should eql(spree.products_path)
+  config.include Spree::Core::UrlHelpers
+
+  # == Mock Framework
+  #
+  # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
+  #
+  # config.mock_with :mocha
+  # config.mock_with :flexmock
+  # config.mock_with :rr
+  config.mock_with :rspec
+
+  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
+  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+
+  # If you're not using ActiveRecord, or you'd prefer not to run each of your
+  # examples within a transaction, remove the following line or assign false
+  # instead of true.
+  config.use_transactional_fixtures = true
+end

spree_avatax.gemspec

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+# encoding: UTF-8
+Gem::Specification.new do |s|
+  s.platform    = Gem::Platform::RUBY
+  s.name        = 'spree_avatax'
+  s.version     = '1.2.0'
+  s.summary     = 'TODO: Add gem summary here'
+  s.description = 'TODO: Add (optional) gem description here'
+  s.required_ruby_version = '>= 1.8.7'
+
+  # s.author    = 'You'
+  # s.email     = '[email protected]'
+  # s.homepage  = 'http://www.spreecommerce.com'
+
+  #s.files       = `git ls-files`.split("\n")
+  #s.test_files  = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.require_path = 'lib'
+  s.requirements << 'none'
+
+  s.add_dependency 'spree_core', '~> 1.2.0'
+  s.add_dependency 'avalara'
+
+  s.add_development_dependency 'capybara', '1.0.1'
+  s.add_development_dependency 'factory_girl', '~> 2.6.4'
+  s.add_development_dependency 'ffaker'
+  s.add_development_dependency 'rspec-rails',  '~> 2.9'
+  s.add_development_dependency 'sqlite3'
+end