Add auto tagger for posts

slices/admin/commands/auto_tagging/create.rb

@@ -0,0 +1,20 @@
+module Admin
+  module Commands
+    module AutoTagging
+      class Create
+        include Dry::Monads[:result]
+        include Deps["repos.auto_tagging_repo"]
+
+        def call(title_contains:, body_contains:, tag_id:)
+          Failure() if !title_contains.empty? && !body_contains.empty?
+
+          result = auto_tagging_repo.create(title_contains: title_contains,
+                                            body_contains: body_contains,
+                                            tag_id: tag_id)
+
+          Success(result.id)
+        end
+      end
+    end
+  end
+end

slices/admin/commands/auto_tagging/tag.rb

@@ -0,0 +1,31 @@
+module Admin
+  module Commands
+    module AutoTagging
+      class Tag
+        include Dry::Monads[:result]
+        include Deps["repos.post_repo", "repos.auto_tagging_repo"]
+
+        def call(auto_tag_id: nil)
+          auto_taggings = if auto_tag_id
+                auto_tagging_repo.find(auto_tag_id)
+              else
+                auto_tagging_repo.all
+              end
+
+          auto_taggings.each do |auto_tagging|
+            posts = auto_tagging.title_only? ?
+              post_repo.by_title(title_contains: auto_tagging.title_contains) :
+              post_repo.by_content(body_contains: auto_tagging.body_contains)
+
+            posts.each do |post|
+              post_repo.tag_post(post_id: post.id,
+                                 tag_id: auto_tagging.tag_id)
+            end
+          end
+
+          Success()
+        end
+      end
+    end
+  end
+end