DEV: Make attachment markdown reusable

app/jobs/regular/export_csv_file.rb

@@ -4,12 +4,11 @@ require 'csv'
 require 'zip'
 require_dependency 'system_message'
 require_dependency 'upload_creator'
+require_dependency 'discourse_markdown'
 
 module Jobs
 
   class ExportCsvFile < Jobs::Base
-    include ActionView::Helpers::NumberHelper
-
     sidekiq_options retry: false
 
     HEADER_ATTRS_FOR ||= HashWithIndifferentAccess.new(
@@ -406,7 +405,7 @@ module Jobs
           SystemMessage.create_from_system_user(
             @current_user,
             :csv_export_succeeded,
-            download_link: "[#{upload.original_filename}|attachment](#{upload.short_url}) (#{number_to_human_size(upload.filesize)})",
+            download_link: DiscourseMarkdown.attachment_markdown(upload),
             export_title: export_title
           )
         else

lib/discourse_markdown.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require_dependency "file_helper"
+
+class DiscourseMarkdown
+  def self.upload_markdown(upload, display_name: nil)
+    if FileHelper.is_supported_image?(upload.original_filename)
+      image_markdown(upload)
+    else
+      attachment_markdown(upload, display_name: display_name)
+    end
+  end
+
+  def self.image_markdown(upload)
+    "![#{upload.original_filename}|#{upload.width}x#{upload.height}](#{upload.short_url})"
+  end
+
+  def self.attachment_markdown(upload, display_name: nil, with_filesize: true)
+    human_filesize = with_filesize ? " (#{upload.human_filesize})" : ""
+    display_name ||= upload.original_filename
+
+    "[#{display_name}|attachment](#{upload.short_url})#{human_filesize}"
+  end
+end

lib/email/receiver.rb

@@ -5,12 +5,11 @@ require_dependency "new_post_manager"
 require_dependency "html_to_markdown"
 require_dependency "plain_text_to_markdown"
 require_dependency "upload_creator"
+require_dependency "discourse_markdown"
 
 module Email
 
   class Receiver
-    include ActionView::Helpers::NumberHelper
-
     # If you add a new error, you need to
     #   * add it to Email::Processor#handle_failure()
     #   * add text to server.en.yml (parent key: "emails.incoming.errors")
@@ -1035,19 +1034,16 @@ module Email
 
                 InlineUploads.match_img(raw) do |match, src, replacement, _|
                   if src == upload.url
-                    raw = raw.sub(
-                      match,
-                      "![#{upload.original_filename}|#{upload.width}x#{upload.height}](#{upload.short_url})"
-                    )
+                    raw = raw.sub(match, DiscourseMarkdown.image_markdown(upload))
                   end
                 end
               elsif raw[/\[image:.*?\d+[^\]]*\]/i]
-                raw.sub!(/\[image:.*?\d+[^\]]*\]/i, attachment_markdown(upload))
+                raw.sub!(/\[image:.*?\d+[^\]]*\]/i, DiscourseMarkdown.upload_markdown(upload))
               else
-                raw << "\n\n#{attachment_markdown(upload)}\n\n"
+                raw << "\n\n#{DiscourseMarkdown.upload_markdown(upload)}\n\n"
               end
             else
-              raw << "\n\n#{attachment_markdown(upload)}\n\n"
+              raw << "\n\n#{DiscourseMarkdown.upload_markdown(upload)}\n\n"
             end
           else
             rejected_attachments << upload
@@ -1082,14 +1078,6 @@ module Email
       Email::Sender.new(client_message, :email_reject_attachment).send
     end
 
-    def attachment_markdown(upload)
-      if FileHelper.is_supported_image?(upload.original_filename)
-        "![#{upload.original_filename}|#{upload.width}x#{upload.height}](#{upload.short_url})"
-      else
-        "[#{upload.original_filename}|attachment](#{upload.short_url}) (#{number_to_human_size(upload.filesize)})"
-      end
-    end
-
     def create_post(options = {})
       options[:via_email] = true
       options[:raw_email] = @raw_email

script/import_scripts/base.rb

@@ -21,8 +21,6 @@ module ImportScripts; end
 
 class ImportScripts::Base
 
-  include ActionView::Helpers::NumberHelper
-
   def initialize
     preload_i18n
 

script/import_scripts/base/uploader.rb

@@ -1,12 +1,10 @@
 # frozen_string_literal: true
 
 require_dependency 'url_helper'
-require_dependency 'file_helper'
+require_dependency 'discourse_markdown'
 
 module ImportScripts
   class Uploader
-    include ActionView::Helpers::NumberHelper
-
     # Creates an upload.
     # Expects path to be the full path and filename of the source file.
     # @return [Upload]
@@ -42,22 +40,15 @@ module ImportScripts
     end
 
     def html_for_upload(upload, display_filename)
-      if FileHelper.is_supported_image?(upload.url)
-        embedded_image_html(upload)
-      else
-        attachment_html(upload, display_filename)
-      end
+      DiscourseMarkdown.upload_markdown(upload, display_name: display_filename)
     end
 
     def embedded_image_html(upload)
-      image_width = [upload.width, SiteSetting.max_image_width].compact.min
-      image_height = [upload.height, SiteSetting.max_image_height].compact.min
-      upload_name = upload.short_url || upload.url
-      %Q~![#{upload.original_filename}|#{image_width}x#{image_height}](#{upload_name})~
+      DiscourseMarkdown.image_markdown(upload)
     end
 
     def attachment_html(upload, display_filename)
-      "[#{display_filename}|attachment](#{upload.short}) (#{number_to_human_size(upload.filesize)})"
+      DiscourseMarkdown.attachment_markdown(upload, display_name: display_filename)
     end
 
     private