require 'rails/generators/erb/scaffold/scaffold_generator'
require File.join(File.dirname(__FILE__), '../../leonardo')

module Erb
  module Generators
    class LeoscaGenerator <  ::Erb::Generators::ScaffoldGenerator
      include ::Leonardo::Leosca
      include ::Leonardo::Nested
      #puts 'erb:leosca'

      source_root File.expand_path('../templates', __FILE__)
      class_option :authorization, :type => :boolean, :default => true, :description => "Add code to manage authorization with cancan"
      class_option :remote, :type => :boolean, :default => true, :description => "Enable ajax. You can also do later set remote to true into index view."
      class_option :formtastic, :type => :boolean, :default => true, :description => "Create forms to manage with formtastic gem"
      class_option :under, :type => :string, :default => "", :banner => "brand/category", :desc => "To nest a resource under another(s)"
      class_option :leospace, :type => :string, :default => "", :banner => ":admin", :desc => "To nest a resource under namespace(s)"
      class_option :auth_class, :type => :boolean, :default => 'user', :desc => "Set the authentication class name"

      #override
      def copy_view_files
        available_views.each do |view|
          filenames = filenames_all_formats(view, source_paths)
          filenames.each do |filename|
            #Looking for custom filename into subfolder
            filename_source = "#{"formtastic/" if formtastic?}#{filename}"
            search_into_subfolder = nil
            source_paths.each do |path|
              if File.exists?(File.join(path,filename_source))
                search_into_subfolder = true
                break
              end
            end
            filename_source = filename unless search_into_subfolder

            template filename_source, File.join("app/views", base_namespaces, controller_file_path, filename)
          end
        end
      end

      def update_layout_html
        file = "app/views/layouts/_#{CONFIG[:default_style]}.html.erb"
        if nested?
          inject_into_file file, :before => "            <!-- Insert above here other #{last_parent} elements -->" do
            <<-FILE.gsub(/^              /, '')
                          #{"<% if can?(:read, #{class_name}) && controller.controller_path == '#{controller_name}' -%>" if authorization?}
                          <li class="active"><%= t('models.#{plural_table_name}') %></li>
                          <!-- Insert above here other #{singular_table_name} elements -->
                          #{"<% end -%>" if authorization?}
            FILE
          end if File.exists?(file)
        #elsif leospaced?
        #  inject_into_file file, :before => "            <!-- Insert above other elements -->" do
        #    <<-FILE.gsub(/^              /, '')
        #                  #{"<% if #{options.auth_class}_signed_in? && current_#{options.auth_class}.role?(#{last_namespace.inspect}) -%>" if authorization?}
        #                  <li class="<%= controller.controller_path == '#{last_namespace}' ? 'active' : '' %>"><a href="<%= #{last_namespace}_index_path %>">#{last_namespace.capitalize}</a></li>
        #                  <!-- Insert above here other #{last_namespace} elements -->
        #                  #{"<% end -%>" if authorization?}
        #    FILE
        #  end if File.exists?(file)
        #  inject_into_file file, :before => "            <!-- Insert above other elements -->" do
        #    <<-FILE.gsub(/^              /, '')
        #                  #{"<% if can?(:read, #{class_name}) -%>" if authorization?}
        #                  <li class="<%= controller.controller_path == '#{formatted_namespace_path}#{controller_name}' ? 'active' : '' %>"><a href="<%= #{list_resources_path} %>"><%= t('models.#{plural_table_name}') %></a></li>
        #                  <!-- Insert above here other #{singular_table_name} elements -->
        #                  #{"<% end -%>" if authorization?}
        #    FILE
        #  end if File.exists?(file)
        else
          inject_into_file file, :before => "            <!-- Insert above other elements -->" do
            <<-FILE.gsub(/^            /, '')
                        #{"<% if can?(:read, #{class_name}) -%>" if authorization?}
                        <li class="<%= controller.controller_path == '#{formatted_namespace_path}#{controller_name}' ? 'active' : '' %>"><a href="<%= #{list_resources_path} %>"><%= t('models.#{plural_table_name}') %></a></li>
                        <!-- Insert above here other #{singular_table_name} elements -->
                        #{"<% end -%>" if authorization?}
            FILE
          end if File.exists?(file)
        end
      end

      def update_parent_views
        return unless nested?
        file = "app/views/#{plural_last_parent}/_row_index.html.erb"
        inject_into_file file, :before => "<!-- Manage section, do not remove this tag -->" do
          <<-FILE.gsub(/^          /, '')
          <td><%= link_to t('models.#{plural_table_name}'), #{list_resources_path_back} %></td>

          FILE
        end if File.exists?(file)
      end

    protected

      #Override
      def available_views
        %w(index edit edit_multiple copy show new _form _form_multiple _fields destroy _show _list _row_index select)
      end

      def filenames_all_formats(name, paths=[], formats=[:html, :js, nil])
        filenames = []
        paths.each do |path|
          formats.each do |format|
            filename = filename_with_extensions(format, name)
            if File.exists?(File.join(path, filename))
              filenames << filename
            end
          end
          break if filenames.any?
        end
        filenames
      end
      def filename_with_extensions(format, name, parser=:erb)
        [name, format, parser].compact.join(".")
      end

    end
  end
end