#399

backend/app/services/post_create_plan.rb

@@ -27,6 +27,7 @@ class PostCreatePlan
         original_created_from: @attributes[:original_created_from].presence,
         original_created_before: @attributes[:original_created_before].presence,
         tags: serialised_tags(direct_tag_specs, tag_sections),
+        display_tags: display_tags(direct_tag_specs, tag_sections),
         duration: @attributes[:duration].to_s,
         video_ms: video_ms,
         parent_post_ids: parent_post_ids.join(' '),
@@ -204,6 +205,15 @@ class PostCreatePlan
     }.sort.join(' ')
   end
 
+  def display_tags direct_tag_specs, tag_sections
+    direct_tag_specs.map { |spec|
+      {
+          name: spec[:name],
+          category: spec[:category].to_s,
+          section_literals: tag_sections[spec[:name]].to_a.map { Post.section_literal(_1) } }
+    }.sort_by { _1[:name] }
+  end
+
   def normalise_video_ms snapshot_tag_specs
     return nil unless snapshot_tag_specs.any? { _1[:name] == VIDEO_TAG_NAME }
 

backend/app/services/post_create_preflight.rb

@@ -29,6 +29,7 @@ class PostCreatePreflight
           original_created_before: preview[:attributes]['original_created_before'],
           duration: preview[:attributes]['duration'],
           video_ms: preview[:attributes]['video_ms'],
+          display_tags: preview[:display_tags] || [],
           field_warnings: final_field_warnings(preview[:field_warnings] || { }),
           base_warnings: preview[:base_warnings],
           existing_post_id: preview[:existing_post_id],
@@ -63,6 +64,7 @@ class PostCreatePreflight
         original_created_before: plan[:original_created_before],
         duration: plan[:duration],
         video_ms: plan[:video_ms],
+        display_tags: plan[:display_tags],
         direct_tag_specs: plan[:direct_tag_specs],
         default_tag_specs: plan[:default_tag_specs],
         snapshot_tag_specs: plan[:snapshot_tag_specs],

backend/app/services/post_metadata_fetcher.rb

@@ -32,6 +32,7 @@ class PostMetadataFetcher
       original_created_from: serialise_time(created_range&.first),
       original_created_before: serialise_time(created_range&.last),
       duration: serialise_duration(duration),
+      display_tags: display_tags(platform_tags),
       tags: platform_tags.join(' ') }
   end
 
@@ -42,6 +43,24 @@ class PostMetadataFetcher
     []
   end
 
+  def self.display_tags names
+    return [] if names.blank?
+
+    existing_tags =
+        Tag
+        .joins(:tag_name)
+        .where(tag_names: { name: names })
+        .index_by(&:name)
+
+    names.map { |name|
+      tag = existing_tags[name]
+      {
+          name: name,
+          category: (tag&.category || 'meta'),
+          section_literals: [] }
+    }
+  end
+
   def self.original_created_range value
     return nil if value.blank?
 
@@ -168,6 +187,7 @@ class PostMetadataFetcher
   end
 
   private_class_method :platform_tags,
+                       :display_tags,
                        :original_created_range,
                        :parse_timestamp_range,
                        :parse_nanoseconds,