app/mailers/heya/campaign_mailer.rb in heya-0.6.1 vs app/mailers/heya/campaign_mailer.rb in heya-0.7.0

@@ -1,9 +1,10 @@
 module Heya
   class CampaignMailer < ApplicationMailer
     DEFAULT_LAYOUT = "heya/campaign_mailer"
     layout -> { params.fetch(:step).params.fetch("layout", DEFAULT_LAYOUT) }
+    include Rails.application.routes.url_helpers
 
     def build
       user = params.fetch(:user)
       step = params.fetch(:step)
 
@@ -24,11 +25,11 @@
 
       mail(
         from: from,
         bcc: bcc,
         reply_to: reply_to,
-        to: user.email,
+        to: to_address(user, step),
         subject: subject,
         template_path: "heya/campaign_mailer/#{campaign_name}",
         template_name: step_name
       )
     end
@@ -49,8 +50,30 @@
           super | ["heya/campaign_mailer/#{campaign_name}"]
         else
           super
         end
       end
+    end
+
+    def to_address(user, step)
+      return step.params["to"].call(user) if step.params["to"].respond_to?(:call)
+
+      if user.respond_to?(:first_name)
+        self.class.email_address_with_name(user.email, user.first_name)
+      elsif user.respond_to?(:name)
+        self.class.email_address_with_name(user.email, user.name)
+      else
+        user.email
+      end
+    end
+
+    # This method is a backport and can be removed when we drop support of
+    # Rails 6.0; As of Rails 6.1, ActionMailer::Base, which we inherit from,
+    # already includes it.
+    def self.email_address_with_name(address, name)
+      Mail::Address.new.tap do |builder|
+        builder.address = address
+        builder.display_name = name
+      end.to_s
     end
   end
 end