Trestle.resource(:cover_letters) do
  menu do
    item :cover_letters, icon: "fa fa-envelope", priority: 2
  end

  form do |item|
    concat Trestle::Form::Automatic.new(admin).render(self, item)
    # text_area :objective
  end

  # Customize the table columns shown on the index view.
  table do
    column :company_name
    column :title
    column :user
    column :created_at, align: :center
    actions do |toolbar, instance, admin|
      toolbar.edit if admin && admin.actions.include?(:edit)
      toolbar.delete if admin && admin.actions.include?(:destroy)
      toolbar.link 'Coverletter', instance, action: :generate_coverletter, method: :get, style: :primary, icon: "fa fa-file-pdf", target: "_blank"
    end
  end

  controller do
    def generate_coverletter
      cover_letter = admin.find_instance(params)
      ac = ActionController::Base.new()
      tex_content = ac.render_to_string(layout: false, template: 'templates/awesome/coverletter', locals: { "@cover_letter": cover_letter } )
      destination_dir = "#{Rails.root}/app/views/templates/awesome"
      `cd #{destination_dir} && make clean`
      File.open("#{destination_dir}/coverletter.tex", "w") do |f|
        f << tex_content
      end
      `cd #{destination_dir} && make coverletter.pdf`
      render file: "#{destination_dir}/coverletter.pdf", layout: false
    end
  end

  routes do
    get :generate_coverletter, on: :member
  end
end