Save syndication sources to posts

app/commands/posts/add_syndication_source.rb

@@ -0,0 +1,18 @@
+module Adamantium
+  module Commands
+    module Posts
+      class AddSyndicationSource
+        include Deps["repos.post_repo"]
+
+        def call(post_id, source, url)
+          post = post_repo.find!(post_id).to_h
+          syndication_sources = post[:syndication_sources] || {}
+          syndication_sources[source] = url
+          post[:syndication_sources] = syndication_sources
+
+          post_repo.update(post_id, post)
+        end
+      end
+    end
+  end
+end

app/commands/posts/syndicate.rb

@@ -1,12 +1,20 @@
+require "dry/monads"
+require "dry/monads/do"
+
 module Adamantium
   module Commands
     module Posts
       class Syndicate
+        include Dry::Monads[:result]
+        include Dry::Monads::Do.for(:call)
+
         include Deps["settings", "syndication.mastodon"]
 
         def call(post)
           if post[:syndicate_to].any? { |url| settings.mastodon_server.match(/#{url}/) }
-            mastodon.call(post: post)
+            url = yield mastodon.call(post: post)
+
+            Success([:mastodon, url])
           end
         end
       end