#399

backend/app/models/post.rb

@@ -158,10 +158,8 @@ class Post < ApplicationRecord
   def attach_thumbnail_from_url! raw_url
     response = Preview::ThumbnailFetcher.fetch_image_response(raw_url)
     thumbnail.attach(
-        io: StringIO.new(response.body),
+        self.class.resized_thumbnail_attachment(
-        filename: remote_thumbnail_filename(response.url),
+            StringIO.new(response.body)))
-        content_type: response.content_type)
-    resized_thumbnail!
   rescue Preview::UrlSafety::UnsafeUrl,
          Preview::ThumbnailFetcher::GenerationFailed,
          Preview::HttpFetcher::FetchFailed,
@@ -173,15 +171,6 @@ class Post < ApplicationRecord
 
   private
 
-  def remote_thumbnail_filename url
-    filename = File.basename(URI.parse(url).path.to_s)
-    return filename if filename.present? && filename != '/'
-
-    'thumbnail'
-  rescue URI::InvalidURIError
-    'thumbnail'
-  end
-
   def validate_original_created_range
     f = parse_original_created_value(:original_created_from)
     b = parse_original_created_value(:original_created_before)

backend/app/services/post_metadata_fetcher.rb

@@ -81,12 +81,22 @@ class PostMetadataFetcher
     day = match[3].to_i
     hour = match[4].to_i
     minute = match[5]&.to_i || 0
+    second = match[6]&.to_i || 0
+    fraction = match[7]
     offset = match[8]
+    nanoseconds = parse_nanoseconds(fraction)
     timestamp =
         if offset.present?
-          Time.new(year, month, day, hour, minute, 0, parse_offset(offset)).in_time_zone
+          Time.new(
+              year,
+              month,
+              day,
+              hour,
+              minute,
+              second + Rational(nanoseconds, 1_000_000_000),
+              parse_offset(offset)).in_time_zone
         else
-          Time.zone.local(year, month, day, hour, minute)
+          Time.zone.local(year, month, day, hour, minute, second).change(nsec: nanoseconds)
         end
 
     from = timestamp.change(sec: 0, nsec: 0)
@@ -94,6 +104,13 @@ class PostMetadataFetcher
     [from, before]
   end
 
+  def self.parse_nanoseconds value
+    return 0 if value.blank?
+
+    digits = value[0, 9].ljust(9, '0')
+    Integer(digits, 10)
+  end
+
   def self.parse_offset value
     return '+00:00' if value == 'Z'
 
@@ -109,6 +126,7 @@ class PostMetadataFetcher
   private_class_method :platform_tags,
                        :original_created_range,
                        :parse_timestamp_range,
+                       :parse_nanoseconds,
                        :parse_offset,
                        :serialise_time
 end

backend/spec/models/post_spec.rb

@@ -187,12 +187,59 @@ RSpec.describe Post, type: :model do
 
         post = described_class.create!(title: 'title', url: 'https://example.com/post')
 
+        expect(post.thumbnail).to receive(:attach).once.and_call_original
         post.attach_thumbnail_from_url!('https://example.com/thumb.png')
 
         expect(post.thumbnail).to be_attached
         image = read_image(post.thumbnail)
         expect(image.dimensions).to eq([180, 180])
       end
+
+      it 'does not attach anything when thumbnail conversion fails' do
+        response = Preview::HttpFetcher::Response.new(
+            'not-an-image',
+            'image/png',
+            'https://example.com/thumb.png')
+        allow(Preview::ThumbnailFetcher).to receive(:fetch_image_response)
+            .with('https://example.com/thumb.png')
+            .and_return(response)
+        allow(described_class).to receive(:resized_thumbnail_attachment)
+            .and_raise(MiniMagick::Error, 'convert failed')
+
+        post = described_class.create!(title: 'title', url: 'https://example.com/post')
+
+        expect {
+          post.attach_thumbnail_from_url!('https://example.com/thumb.png')
+        }.to raise_error(Post::RemoteThumbnailFetchFailed, 'convert failed')
+
+        expect(post.thumbnail).not_to be_attached
+      end
+
+      it 'keeps an existing thumbnail when remote conversion fails' do
+        existing = described_class.create!(title: 'title', url: 'https://example.com/post')
+        existing.thumbnail.attach(
+            io: StringIO.new('existing'),
+            filename: 'existing.jpg',
+            content_type: 'image/jpeg')
+        blob_id = existing.thumbnail.blob.id
+        response = Preview::HttpFetcher::Response.new(
+            'not-an-image',
+            'image/png',
+            'https://example.com/thumb.png')
+        allow(Preview::ThumbnailFetcher).to receive(:fetch_image_response)
+            .with('https://example.com/thumb.png')
+            .and_return(response)
+        allow(described_class).to receive(:resized_thumbnail_attachment)
+            .and_raise(MiniMagick::Error, 'convert failed')
+
+        expect {
+          existing.attach_thumbnail_from_url!('https://example.com/thumb.png')
+        }.to raise_error(Post::RemoteThumbnailFetchFailed, 'convert failed')
+
+        existing.reload
+        expect(existing.thumbnail).to be_attached
+        expect(existing.thumbnail.blob.id).to eq(blob_id)
+      end
     end
   end
 end

backend/spec/services/post_metadata_fetcher_spec.rb

@@ -61,4 +61,11 @@ RSpec.describe PostMetadataFetcher do
     expect(result.fetch(:original_created_from)).to be_nil
     expect(result.fetch(:original_created_before)).to be_nil
   end
+
+  it 'returns nil dates for an invalid timestamp second value' do
+    result = fetch_with_published_time('2024-02-03T12:34:99Z')
+
+    expect(result.fetch(:original_created_from)).to be_nil
+    expect(result.fetch(:original_created_before)).to be_nil
+  end
 end

backend/spec/services/youtube/sync_spec.rb

@@ -23,6 +23,22 @@ RSpec.describe Youtube::Sync do
           post,
           'https://example.com/thumb.jpg')
     end
+
+    it 'retries on a later sync when the previous remote attach failed' do
+      post = create(:post, thumbnail_base: nil)
+      allow(sync).to receive(:attach_thumbnail_if_needed!).and_call_original
+      expect(post).to receive(:attach_thumbnail_from_url!)
+          .with('https://example.com/thumb.jpg')
+          .twice
+          .and_raise(Post::RemoteThumbnailFetchFailed, 'failed')
+
+      2.times do
+        sync.send(
+            :attach_thumbnail_if_needed!,
+            post,
+            'https://example.com/thumb.jpg')
+      end
+    end
   end
 
   describe '#sync!' do
@@ -91,7 +107,7 @@ RSpec.describe Youtube::Sync do
       sync.sync!
     end
 
-    it 'creates a YouTube post with default tags and no_deerjikist when no deerjikist mapping exists' do
+    it 'creates a YouTube post with default tags when no deerjikist mapping exists' do
       Tag.tagme
       Tag.bot
       Tag.youtube

frontend/src/components/posts/import/PostImportRowSummary.tsx

@@ -92,6 +92,13 @@ const PostImportRowSummary: FC<Props> = ({ row, onEdit }) => {
               <div className="flex flex-wrap gap-2">
                 {displayStatus != null && <PostImportStatusBadge value={displayStatus}/>}
               </div>
+              <div className="text-xs text-neutral-500 dark:text-neutral-400">
+                {String (row.attributes.tags ?? '') || 'タグなし'}
+              </div>
+              <div className="text-xs text-neutral-500 dark:text-neutral-400">
+                {summaryDate (row)}
+                {row.attributes.duration ? ` / ${ row.attributes.duration }` : ''}
+              </div>
               {warning && (
                   <div className="text-xs text-amber-700 dark:text-amber-200">
                     {warning}

frontend/src/lib/postImportRows.test.ts

@@ -5,6 +5,8 @@ import { creatableImportRows,
 	 mergeImportResults,
 	 mergeValidatedImportRows,
 	 processableImportRows,
+	 resultRepairMode,
+	 resultRowMessages,
 	 resultSummaryCounts,
 	 retryImportRow,
 	 reviewSummaryCounts } from '@/lib/postImportSession'
@@ -131,6 +133,22 @@ describe ('post import row state', () => {
       importErrors: undefined })
   })
 
+  it ('deduplicates messages and keeps repair mode only for repairable rows', () => {
+    const repairable = buildPostImportRow ({
+      sourceRow: 1,
+      importStatus: 'pending',
+      validationErrors: { title: ['invalid'], base: ['duplicate'] },
+      importErrors: { base: ['duplicate'], url: ['network'] } })
+    const complete = buildPostImportRow ({
+      sourceRow: 2,
+      importStatus: 'created',
+      createdPostId: 2 })
+
+    expect (resultRowMessages (repairable)).toEqual (['invalid', 'duplicate', 'network'])
+    expect (resultRepairMode ([repairable, complete])).toBe ('failed')
+    expect (resultRepairMode ([complete])).toBe ('all')
+  })
+
   it ('copies reset snapshot values instead of sharing mutable records', () => {
     const row = buildPostImportRow ({ fieldWarnings: { title: ['warning'] } })
     const initialised = initialisePreviewRows ([row])[0]

frontend/src/lib/postImportRows.ts

@@ -7,6 +7,9 @@ const hasSkipReason = (row: PostImportRow): boolean =>
 const hasValidationErrors = (row: PostImportRow): boolean =>
     Object.keys (row.validationErrors ?? { }).length > 0
 
+const isRepairableImportStatus = (row: PostImportRow): boolean =>
+    row.importStatus === 'failed' || row.importStatus === 'pending'
+
 const buildResetSnapshot = (row: PostImportRow) => ({
     url: row.url,
     attributes: { ...row.attributes },
@@ -67,6 +70,20 @@ export const resultSummaryCounts = (rows: PostImportRow[]) =>
         { created: 0, skipped: 0, failed: 0 })
 
 
+export const resultRepairMode = (
+    rows: PostImportRow[],
+): 'all' | 'failed' =>
+    rows.some (row => hasValidationErrors (row) || isRepairableImportStatus (row))
+    ? 'failed'
+    : 'all'
+
+
+export const resultRowMessages = (row: PostImportRow): string[] =>
+    [...new Set ([
+        ...Object.values (row.validationErrors ?? { }).flat (),
+        ...Object.values (row.importErrors ?? { }).flat ()])]
+
+
 export const mergeValidatedImportRows = (
     current:   PostImportRow[],
     validated: PostImportRow[],

frontend/src/pages/posts/PostImportResultPage.tsx

@@ -20,6 +20,8 @@ import { clearPostImportSourceDraft,
 	 loadPostImportSession,
 	 mergeImportResults,
 	 mergeValidatedImportRows,
+	 resultRepairMode,
+	 resultRowMessages,
 	 resultSummaryCounts,
 	 retryImportRow,
 	 savePostImportSession } from '@/lib/postImportSession'
@@ -34,9 +36,6 @@ import type { User } from '@/types'
 
 type Props = { user: User | null }
 
-const rowMessages = (row: PostImportRow): string[] =>
-    Object.values (row.importErrors ?? { }).flat ()
-
 const buildNextEditedRow = (
     editingRow:  PostImportRow,
     draft:       PostImportRowDraft,
@@ -293,7 +292,7 @@ const PostImportResultPage: FC<Props> = ({ user }) => {
       const resultSession = {
           ...nextSession,
           rows: nextRows,
-          repairMode: recoverableTarget == null ? 'all' as const : 'failed' as const }
+          repairMode: resultRepairMode (nextRows) }
       sessionRef.current = resultSession
       setSession (resultSession)
       if (recoverableTarget != null
@@ -367,10 +366,13 @@ const PostImportResultPage: FC<Props> = ({ user }) => {
 	  <div className="space-y-3">
 	    {session.rows.map (row => {
 	      const displayStatus = displayPostImportStatus (row)
-	      const canEdit = row.importStatus === 'failed'
+	      const hasValidationErrors = Object.keys (row.validationErrors).length > 0
-	      const canRetry =
+	      const canEdit =
 		  row.importStatus === 'failed'
-		  && Object.keys (row.validationErrors).length === 0
+		  || (row.importStatus === 'pending' && hasValidationErrors)
+	      const canRetry =
+		  (row.importStatus === 'failed' || row.importStatus === 'pending')
+		  && !(hasValidationErrors)
 	      return (
 		  <div
 		      key={row.sourceRow}
@@ -388,7 +390,7 @@ const PostImportResultPage: FC<Props> = ({ user }) => {
 			<div className="text-xs text-neutral-500 dark:text-neutral-400">
 			  {row.url}
 			</div>
-			<FieldError messages={rowMessages (row)}/>
+			<FieldError messages={resultRowMessages (row)}/>
 		      </div>
 
 		      <div className="flex flex-col gap-2 sm:flex-row">