From da697e84445f8f750b8a7d0fa916f429eda8aae4 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Wed, 19 Sep 2018 15:52:16 -0700
Subject: Attach a concrete router to the root mailbox and use it

Don't think this is how it's going to stay. Doesn't feel like the right place for it.
---
 lib/action_mailroom/mailbox.rb         | 18 ++++++++----------
 lib/action_mailroom/mailbox/routing.rb | 15 +++++++++++++++
 lib/action_mailroom/router.rb          |  8 ++++++--
 3 files changed, 29 insertions(+), 12 deletions(-)
 create mode 100644 lib/action_mailroom/mailbox/routing.rb

(limited to 'lib')

diff --git a/lib/action_mailroom/mailbox.rb b/lib/action_mailroom/mailbox.rb
index a2c097a42f..3518449794 100644
--- a/lib/action_mailroom/mailbox.rb
+++ b/lib/action_mailroom/mailbox.rb
@@ -1,21 +1,19 @@
 require "active_support/rescuable"
+
 require "action_mailroom/mailbox/callbacks"
+require "action_mailroom/mailbox/routing"
 
 class ActionMailroom::Mailbox
-  include ActiveSupport::Rescuable, Callbacks
+  include ActiveSupport::Rescuable
+  include Callbacks, Routing
 
-  class << self
-    def receive(inbound_email)
-      new(inbound_email).perform_processing
-    end
+  attr_reader :inbound_email
+  delegate :mail, to: :inbound_email
 
-    def routing(routes)
-      @router = ActionMailroom::Router.new(routes)
-    end
+  def self.receive(inbound_email)
+    new(inbound_email).perform_processing
   end
 
-  attr_reader :inbound_email
-  delegate :mail, to: :inbound_email
 
   def initialize(inbound_email)
     @inbound_email = inbound_email
diff --git a/lib/action_mailroom/mailbox/routing.rb b/lib/action_mailroom/mailbox/routing.rb
new file mode 100644
index 0000000000..9f082c8aa5
--- /dev/null
+++ b/lib/action_mailroom/mailbox/routing.rb
@@ -0,0 +1,15 @@
+module ActionMailroom::Mailbox::Routing
+  extend ActiveSupport::Concern
+
+  class_methods do
+    attr_reader :router
+
+    def routing(routes)
+      (@router ||= ActionMailroom::Router.new).add_routes(routes)
+    end
+
+    def route(inbound_email)
+      @router.route(inbound_email)
+    end
+  end
+end
diff --git a/lib/action_mailroom/router.rb b/lib/action_mailroom/router.rb
index 066d7163e4..bf0001f1ae 100644
--- a/lib/action_mailroom/router.rb
+++ b/lib/action_mailroom/router.rb
@@ -1,6 +1,10 @@
 class ActionMailroom::Router
-  def initialize(routes)
-    @routes = routes
+  def initialize
+    @routes = {}
+  end
+
+  def add_routes(routes)
+    @routes.merge!(routes)
   end
 
   def route(inbound_email)
-- 
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