From d70c5796a2989b7b43f7e287899fb1394ae28280 Mon Sep 17 00:00:00 2001
From: Azul <azul@leap.se>
Date: Fri, 19 Jul 2013 16:02:02 +0200
Subject: separate signup and settings service objects for user

---
 users/app/controllers/v1/users_controller.rb | 13 ++++++-
 users/app/models/account_settings.rb         | 36 ++++++++++++++++++
 users/app/models/identity.rb                 | 27 +++++++++++++
 users/app/models/signup_service.rb           |  9 +++++
 users/app/models/user.rb                     | 57 ----------------------------
 5 files changed, 83 insertions(+), 59 deletions(-)
 create mode 100644 users/app/models/account_settings.rb
 create mode 100644 users/app/models/signup_service.rb

(limited to 'users/app')

diff --git a/users/app/controllers/v1/users_controller.rb b/users/app/controllers/v1/users_controller.rb
index 467c9b4..f380c19 100644
--- a/users/app/controllers/v1/users_controller.rb
+++ b/users/app/controllers/v1/users_controller.rb
@@ -18,14 +18,23 @@ module V1
     end
 
     def create
-      @user = User.create(params[:user])
+      @user = signup_service.register(params[:user])
       respond_with @user # return ID instead?
     end
 
     def update
-      @user.update_attributes params[:user]
+      account_settings.update params[:user]
       respond_with @user
     end
 
+    protected
+
+    def account_settings
+      AccountSettings.new(@user)
+    end
+
+    def signup_service
+      SignupService.new
+    end
   end
 end
diff --git a/users/app/models/account_settings.rb b/users/app/models/account_settings.rb
new file mode 100644
index 0000000..a73a95a
--- /dev/null
+++ b/users/app/models/account_settings.rb
@@ -0,0 +1,36 @@
+class AccountSettings
+
+  def initialize(user)
+    @user = user
+  end
+
+  def update(attrs)
+    if attrs[:password_verifier].present?
+      update_login(attrs[:login])
+      @user.update_attributes attrs.slice(:password_verifier, :password_salt)
+    end
+    # TODO: move into identity controller
+    update_pgp_key(attrs[:public_key]) if attrs.has_key? :public_key
+    @user.save && save_identities
+  end
+
+  protected
+
+  def update_login(login, verifier)
+    return unless login.present?
+    @old_identity = Identity.for(@user)
+    @user.login = login
+    @new_identity = Identity.for(@user) # based on the new login
+    @old_identity.destination = @user.email_address # alias old -> new
+  end
+
+  def update_pgp_key(key)
+    @new_identity ||= Identity.for(@user)
+    @new_identity.set_key(:pgp, key)
+  end
+
+  def save_identities
+    @new_identity.try(:save) && @old_identity.try(:save)
+  end
+
+end
diff --git a/users/app/models/identity.rb b/users/app/models/identity.rb
index 73531ec..355f67a 100644
--- a/users/app/models/identity.rb
+++ b/users/app/models/identity.rb
@@ -27,6 +27,33 @@ class Identity < CouchRest::Model::Base
 
   end
 
+  def self.for(user, attributes = {})
+    find_for(user, attributes) || build_for(user, attributes)
+  end
+
+  def self.find_for(user, attributes = {})
+    attributes.reverse_merge! attributes_from_user(user)
+    find_by_address_and_destination [attributes[:address], attributes[:destination]]
+  end
+
+  def self.build_for(user, attributes = {})
+    attributes.reverse_merge! attributes_from_user(user)
+    Identity.new(attributes)
+  end
+
+  def self.create_for(user, attributes = {})
+    identity = build_for(user, attributes)
+    identity.save
+    identity
+  end
+
+  def self.attributes_from_user(user)
+    { user_id: user.id,
+      address: user.email_address,
+      destination: user.email_address
+    }
+  end
+
   def keys
     read_attribute('keys') || HashWithIndifferentAccess.new
   end
diff --git a/users/app/models/signup_service.rb b/users/app/models/signup_service.rb
new file mode 100644
index 0000000..f316ca9
--- /dev/null
+++ b/users/app/models/signup_service.rb
@@ -0,0 +1,9 @@
+class SignupService
+
+  def register(attrs)
+    User.create(attrs).tap do |user|
+      Identity.create_for user
+    end
+  end
+
+end
diff --git a/users/app/models/user.rb b/users/app/models/user.rb
index c791069..f78f290 100644
--- a/users/app/models/user.rb
+++ b/users/app/models/user.rb
@@ -47,63 +47,10 @@ class User < CouchRest::Model::Base
     view :by_created_at
   end # end of design
 
-  # We proxy access to the pgp_key. So we need to make sure
-  # the updated identity actually gets saved.
-  def save(*args)
-    super
-    identity.user_id ||= self.id
-    identity.save if identity.changed?
-  end
-
-  # So far this only works for creating a new user.
-  # TODO: Create an alias for the old login when changing the login
-  def login=(value)
-    write_attribute 'login', value
-    if @identity
-      @identity.address = email_address
-      @identity.destination = email_address
-    else
-      build_identity
-    end
-  end
-
-  # DEPRECATED
-  #
-  # Please set the key on the identity directly
-  def public_key=(value)
-    identity.set_key(:pgp, value)
-  end
-
-  # DEPRECATED
-  #
-  # Please access identity.keys[:pgp] directly
-  def public_key
-    identity.keys[:pgp]
-  end
-
   class << self
     alias_method :find_by_param, :find
   end
 
-  # this is the main identity. login@domain.tld
-  # aliases and forwards are represented in other identities.
-  def identity
-    @identity ||= find_identity || build_identity
-  end
-
-  def create_identity(attribs = {}, &block)
-    new_identity = build_identity(attribs, &block)
-    new_identity.save
-    new_identity
-  end
-
-  def build_identity(attribs = {}, &block)
-    attribs.reverse_merge! user_id: self.id,
-      address: self.email_address,
-      destination: self.email_address
-    Identity.new(attribs, &block)
-  end
-
   def to_param
     self.id
   end
@@ -142,10 +89,6 @@ class User < CouchRest::Model::Base
 
   protected
 
-  def find_identity
-    Identity.find_by_address_and_destination([email_address, email_address])
-  end
-
   ##
   #  Validation Functions
   ##
-- 
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