Mailjet: i'm loving it

lib/tasks/2018_10_09_fix_mailjet_mistakes.rake

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+namespace :'2018_10_03_fix_mailjet_mistakes' do
+  task activation_emails: :environment do
+    activation_file_path = ENV['ACTIVATION']
+
+    if File.file?(activation_file_path)
+      rake_puts "loading #{activation_file_path} file for account activation"
+    else
+      rake_puts "no file #{activation_file_path} found"
+    end
+
+    emails = File.new(activation_file_path).readlines.map(&:strip)
+
+    emails.each do |email|
+      user = User.find_by(email: email)
+      if user.present?
+        rake_puts "sending activation mail for #{email}"
+        if user.confirmed?
+          UserMailer.new_account_warning(user).deliver_later
+        else
+          user.resend_confirmation_instructions
+        end
+      else
+        rake_puts "user #{email} does not exist"
+      end
+    end
+  end
+
+  task password_emails: :environment do
+    password_file_path = ENV['PASSWORD']
+
+    if File.file?(password_file_path)
+      rake_puts "loading #{password_file_path} file for changing password"
+    else
+      rake_puts "no file #{password_file_path} found"
+    end
+
+    emails = File.new(password_file_path).readlines.map(&:strip)
+
+    emails.each do |email|
+      user = User.find_by(email: email)
+      if user.present?
+        rake_puts "sending changing password mail for #{email}"
+        user.send_reset_password_instructions
+      else
+        rake_puts "user #{email} does not exist"
+      end
+    end
+  end
+
+  task notification_emails: :environment do
+    notification_file_path = ENV['NOTIFICATION']
+
+    if File.file?(notification_file_path)
+      rake_puts "loading #{notification_file_path} file for notification"
+    else
+      rake_puts "no file #{notification_file_path} found"
+    end
+
+    lines = File.new(notification_file_path).readlines.map(&:strip)
+
+    lines.each do |line|
+      email, *subject = line.split(',')
+      subject = *subject.join
+
+      user = User.find_by(email: email)
+
+      body = <<-EOS
+      Bonjour,
+
+      Suite à un incident technique concernant les envois d'emails sur le site demarches-simplifiees.fr, nous n'avons pas pu vous remettre l'email intitulé #{subject}.
+
+      Vous pouvez néanmoins le consulter directement dans la messagerie de votre dossier en vous connectant sur https://www.demarches-simplifiees.fr/users/sign_in .
+
+      Veuillez nous excuser pour la gêne occasionnée.
+
+      Cordialement,
+
+      L'équipe de demarches-simplifiees.fr
+      EOS
+
+      if user.present?
+        rake_puts "sending notification for #{email}"
+        ActionMailer::Base.mail(
+          from: "contact@demarches-simplifiees.fr",
+          to: email,
+          subject: subject,
+          body: body
+        ).deliver_later
+      else
+        rake_puts "user #{email} does not exist"
+      end
+    end
+  end
+end