Refactor micropub specific things out to a slice

slices/micropub/commands/posts/create_checkin.rb

@@ -0,0 +1,42 @@
+require "dry/monads"
+
+module Micropub
+  module Commands
+    module Posts
+      class CreateCheckin < Adamantium::Command
+        include Deps["repos.post_repo",
+          "post_utilities.slugify",
+          "logger",
+          renderer: "renderers.markdown",
+          add_post_syndication_source: "commands.posts.add_syndication_source"
+                    ]
+
+        include Dry::Monads[:result]
+
+        def call(post)
+          syndication_sources = post.delete(:syndication_sources)
+          post_params = prepare_params(params: post)
+          created_post = post_repo.create(post_params)
+
+          syndication_sources.each do |url|
+            add_post_syndication_source.call(created_post.id, :swarm, url)
+          end
+
+          # decorated_post = Decorators::Posts::Decorator.new(created_post)
+
+          # send_webmentions.call(post_content: attrs[:content], post_url: decorated_post.permalink)
+
+          Success(created_post)
+        end
+
+        private
+
+        def prepare_params(params:)
+          attrs = params.to_h
+          attrs[:content] = renderer.call(content: attrs[:content]) if attrs[:content]
+          attrs
+        end
+      end
+    end
+  end
+end