# frozen_string_literal: true

# Sinatra banner module for showing site-wide messages
module Sinatra
  # Banner implementation
  module Banner
    # Class to handle parsing the environment for banner configuration and exposing it to the view
    class Banner
      def self.from_env
        text = ENV['BANNER_TEXT']
        opts = {}
        opts[:type] = ENV['BANNER_TYPE'] if ENV.key? 'BANNER_TYPE'
        opts[:dismissable] = ENV['BANNER_DISMISSABLE'].to_s =~ /^[1ty]/i if ENV.key? 'BANNER_DISMISSABLE'

        new(text, **opts)
      end

      def initialize(text, type: 'warning', dismissable: false)
        @text = text.to_s.strip
        type = type.downcase.strip
        type = 'warning' unless %w[primary secondary success danger warning info light dark].include? type
        @type = type
        @dismissable = dismissable
      end

      attr_reader :text, :type

      def visible?
        !@text.empty?
      end

      def dismissable?
        @dismissable
      end
    end

    # Container for helper methods
    module Helpers
      def banner
        @banner ||= Banner.from_env
      end
    end

    def self.registered(app) # rubocop:disable Metrics/MethodLength
      app.helpers Helpers

      app.template :banner do
        %(
          <% if banner.visible? %>
            <div class="alert alert-<%= banner.type %> alert-dismissible fade show" role="alert">
              <%= banner.text %>
              <% if banner.dismissable? %>
                <% if settings.respond_to?(:bootstrap_major_version) && settings.bootstrap_major_version == 5 %>
                  <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                <% else %>
                  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                  </button>
                <% end %>
              <% end %>
            </div>
          <% end %>
        )
      end
    end
  end
end