1 files changed, 82 insertions, 0 deletions
diff --git a/users/app/models/identity.rb b/users/app/models/identity.rb
new file mode 100644
index 0000000..355f67a
--- /dev/null
+++ b/users/app/models/identity.rb
@@ -0,0 +1,82 @@
+class Identity < CouchRest::Model::Base
+
+  use_database :identities
+
+  belongs_to :user
+
+  property :address, LocalEmail
+  property :destination, Email
+  property :keys, HashWithIndifferentAccess
+
+  validate :unique_forward
+  validate :alias_available
+
+  design do
+    view :by_user_id
+    view :by_address_and_destination
+    view :by_address
+    view :pgp_key_by_email,
+      map: <<-EOJS
+      function(doc) {
+        if (doc.type != 'Identity') {
+          return;
+        }
+        emit(doc.address, doc.keys["pgp"]);
+      }
+    EOJS
+
+  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
+
+  def set_key(type, value)
+    return if keys[type] == value
+    write_attribute('keys', keys.merge(type => value))
+  end
+
+  protected
+
+  def unique_forward
+    same = Identity.find_by_address_and_destination([address, destination])
+    if same && same != self
+      errors.add :base, "This alias already exists"
+    end
+  end
+
+  def alias_available
+    same = Identity.find_by_address(address)
+    if same && same.user != self.user
+      errors.add :base, "This email has already been taken"
+    end
+  end
+
+end