FIX: Discobot has not been created with our custom avatar.

Previously the image was imported from a Discourse hosted CDN but the
URL has since become invalid. However, it was not caught since all
errors are rescued. This commit fixes the issue by shipping the user
avatar with the plugin.

app/models/user_avatar.rb

@@ -96,16 +96,31 @@ class UserAvatar < ActiveRecord::Base
 
     return unless tempfile
 
-    ext = FastImage.type(tempfile).to_s
-    tempfile.rewind
+    create_custom_avatar(
+      user,
+      tempfile,
+      override_gravatar: options&.dig(:override_gravatar),
+      origin: avatar_url
+    )
+  rescue Net::ReadTimeout, OpenURI::HTTPError
+    # skip saving, we are not connected to the net
+  ensure
+    tempfile.close! if tempfile && tempfile.respond_to?(:close!)
+  end
 
-    upload = UploadCreator.new(tempfile, "external-avatar." + ext, origin: avatar_url, type: "avatar").create_for(user.id)
+  def self.create_custom_avatar(user, file, override_gravatar: false, origin: nil)
+    ext = FastImage.type(file).to_s
+    file.rewind
+
+    upload = UploadCreator.new(file, "external-avatar.#{ext}",
+      origin: origin,
+      type: "avatar"
+    ).create_for(user.id)
 
     user.create_user_avatar! unless user.user_avatar
 
     if !user.user_avatar.contains_upload?(upload.id)
       user.user_avatar.update!(custom_upload_id: upload.id)
-      override_gravatar = !options || options[:override_gravatar]
 
       if user.uploaded_avatar_id.nil? ||
           !user.user_avatar.contains_upload?(user.uploaded_avatar_id) ||
@@ -114,11 +129,6 @@ class UserAvatar < ActiveRecord::Base
         user.update!(uploaded_avatar_id: upload.id)
       end
     end
-
-  rescue Net::ReadTimeout, OpenURI::HTTPError
-    # skip saving, we are not connected to the net
-  ensure
-    tempfile.close! if tempfile && tempfile.respond_to?(:close!)
   end
 
   def self.ensure_consistency!

plugins/discourse-narrative-bot/db/fixtures/001_discobot.rb

@@ -1,23 +1,24 @@
 # frozen_string_literal: true
 
 discobot_username = 'discobot'
+discobot_user_id = -2
 
-def seed_primary_email
+def seed_primary_email(user_id)
   UserEmail.seed do |ue|
-    ue.id = -2
+    ue.id = user_id
     ue.email = "discobot_email"
     ue.primary = true
-    ue.user_id = -2
+    ue.user_id = user_id
   end
 end
 
-unless user = User.find_by(id: -2)
+unless user = User.find_by(id: discobot_user_id)
   suggested_username = UserNameSuggester.suggest(discobot_username)
 
-  seed_primary_email
+  seed_primary_email(discobot_user_id)
 
   User.seed do |u|
-    u.id = -2
+    u.id = discobot_user_id
     u.name = discobot_username
     u.username = suggested_username
     u.username_lower = suggested_username.downcase
@@ -26,26 +27,13 @@ unless user = User.find_by(id: -2)
     u.approved = true
     u.trust_level = TrustLevel[4]
   end
-
-  # TODO Pull the user avatar from that thread for now. In the future, pull it from a local file or from some central discobot repo.
-  if !Rails.env.test?
-    begin
-      UserAvatar.import_url_for_user(
-        "https://cdn.discourse.org/dev/uploads/default/original/2X/e/edb63d57a720838a7ce6a68f02ba4618787f2299.png",
-        User.find(-2),
-        override_gravatar: true
-      )
-    rescue
-      # In case the avatar can't be downloaded, don't fail seed
-    end
-  end
 end
 
-bot = User.find(-2)
+bot = User.find(discobot_user_id)
 
 # ensure discobot has a primary email
 unless bot.primary_email
-  seed_primary_email
+  seed_primary_email(discobot_user_id)
   bot.reload
 end
 
@@ -62,4 +50,10 @@ if !bot.user_profile.bio_raw
   )
 end
 
-Group.user_trust_level_change!(-2, TrustLevel[4])
+if !Rails.env.test? && (bot.user_avatar&.custom_upload_id.blank?)
+  File.open(Rails.root.join("plugins", "discourse-narrative-bot", "assets", "images", "discobot.png"), 'r') do |file|
+    UserAvatar.create_custom_avatar(bot, file, override_gravatar: true)
+  end
+end
+
+Group.user_trust_level_change!(discobot_user_id, TrustLevel[4])