Support email confirmation to be in finnish

Author: nygrenh

app/controllers/api/v8/users_controller.rb

@@ -104,7 +104,7 @@ def create
 
         if @user.errors.empty? && @user.save
           # TODO: Whitelist origins
-          UserMailer.email_confirmation(@user, params[:origin]).deliver_now
+          UserMailer.email_confirmation(@user, params[:origin], params[:language]).deliver_now
           render json: {
             success: true,
             message: 'User created.'

app/controllers/users_controller.rb

@@ -85,9 +85,10 @@ def update
   end
 
   def confirm_email
+    language = params[:language]
     token = VerificationToken.email.find_by!(user_id: params[:user_id], token: params[:id])
     redirect_path = root_url
-    redirect_path = 'https://course.elementsofai.com/email-verification' if params[:origin].start_with?('elements_of_ai')
+    redirect_path = "https://course.elementsofai.com/#{language ? "#{language}/" : ''}email-verification" if params[:origin].start_with?('elements_of_ai')
     User.find(params[:user_id]).update!(email_verified: true)
     redirect_to redirect_path, notice: 'Your email address has been verified!'
   end

app/mailers/user_mailer.rb

@@ -3,12 +3,13 @@
 require 'cgi'
 
 class UserMailer < ActionMailer::Base
-  def email_confirmation(user, origin = nil)
+  def email_confirmation(user, origin = nil, language = nil)
     @origin = origin
     @user = user
     token = user.verification_tokens.email.create!
-    @url = base_url + confirm_email_path(@user.id, token.token)
+    @url = base_url + confirm_email_path(@user.id, token.token, language: language)
     subject = 'Confirm your mooc.fi account email address'
+    subject = 'Varmista mooc.fi tunnuksesi sähköpostiosoite' if language == "fi"
     subject = "#{origin}: #{subject}" if origin
     if origin
       origin_name = origin.downcase.tr(' ', '_').gsub(/[\.\/]/, '')