#55

backend/app/services/post_create_preflight.rb

@@ -18,6 +18,7 @@ class PostCreatePreflight
   def run locale
     preview = PostImportPreviewer.new.preview_rows(
         rows: [preview_row],
+        locale:,
         fetch_metadata: false).first
     if preview[:existing_post_id].present?
       return {

backend/app/services/post_import_previewer.rb

@@ -16,7 +16,7 @@ class PostImportPreviewer
   THUMBNAIL_FETCH_WARNING = 'サムネールを取得できませんでした．'.freeze
   METADATA_FETCH_WARNING = '自動取得に失敗しました．'.freeze
 
-  def preview_rows locale, rows:, fetch_metadata: true, metadata_cache: { }
+  def preview_rows rows:, locale: Locale.nipponese, fetch_metadata: true, metadata_cache: { }
     prepared_rows = rows.map { prepare_row(_1) }
     url_counts = prepared_rows.filter_map { _1[:normal_url] }.tally
     existing_posts =
@@ -30,6 +30,7 @@ class PostImportPreviewer
         url_counts)
     known_tags =
         preload_known_tags(
+            locale,
             prepared_rows,
             fetch_metadata,
             metadata_cache,
@@ -347,7 +348,7 @@ class PostImportPreviewer
     { data: { }, warnings: { 'url' => [METADATA_FETCH_WARNING] }, validation_errors: { } }
   end
 
-  def preload_known_tags prepared_rows, fetch_metadata, metadata_cache, existing_posts, url_counts
+  def preload_known_tags locale, prepared_rows, fetch_metadata, metadata_cache, existing_posts, url_counts
     names = prepared_rows.flat_map { |row|
       attributes = initial_attributes(row)
       provenance = initial_provenance(row)
@@ -359,11 +360,11 @@ class PostImportPreviewer
         metadata = metadata_for(row[:normal_url], metadata_cache)
         apply_metadata!(attributes, provenance, tag_sources, metadata[:data])
       end
-      preview_tag_names(merged_tags(tag_sources, provenance['tags']))
+      preview_tag_names(locale, merged_tags(tag_sources, provenance['tags']))
     }.compact.uniq
     return { } if names.empty?
 
-    TagName.where(language_code: 'ja', primary_flg: true, name: names)
+    TagName.where(language_code: locale.language_code, primary_flg: true, name: names)
            .includes(:tag)
            .each_with_object({ }) { |tag_name, tags| tags[tag_name.name] = tag_name.tag }
   end

backend/app/services/tag_version_recorder.rb

@@ -1,11 +1,10 @@
 class TagVersionRecorder < VersionRecorder
-  def self.record! tag:, event_type:, created_by_user:, language_code: 'ja'
-    new(tag:, event_type:, created_by_user:, language_code:).record!
+  def self.record! tag:, event_type:, created_by_user:, **_options
+    new(tag:, event_type:, created_by_user:).record!
   end
 
-  def initialize tag:, event_type:, created_by_user:, language_code:
+  def initialize tag:, event_type:, created_by_user:
     super(record: tag, event_type:, created_by_user:)
-    @language_code = language_code
   end
 
   private
@@ -15,10 +14,24 @@ class TagVersionRecorder < VersionRecorder
   def record_key = :tag
 
   def snapshot_attributes
-    { name: @record.name(@language_code),
+    names = snapshot_names
+    japanese_names = names.select { _1[:language_code] == 'ja' }
+    compatibility_names = japanese_names.presence || names
+
+    { name: compatibility_names.find { _1[:primary_flg] }[:name],
       category: @record.category,
       deprecated_at: @record.deprecated_at,
-      aliases: @record.snapshot_aliases(@language_code).join(' '),
+      aliases: compatibility_names.reject { _1[:primary_flg] }.map { _1[:name] }.join(' '),
+      names:,
       parent_tag_ids: @record.snapshot_parent_tag_ids.join(' ') }
   end
+
+  def snapshot_names
+    @record.tag_names.order(:language_code, primary_flg: :desc).order(:name).map { |tag_name|
+      { language_code: tag_name.language_code,
+        name: tag_name.name,
+        script_code: tag_name.script_code,
+        primary_flg: tag_name.primary_flg }
+    }
+  end
 end